config root man

Current Path : /home/usr.opt/mysql57/mysql-test/r/

FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64
Upload File :
Current File : //home/usr.opt/mysql57/mysql-test/r/create_w_max_indexes_64.result

create table t1 (
c1 int, c2 int, c3 int, c4 int, c5 int, c6 int, c7 int, c8 int,
c9 int, c10 int, c11 int, c12 int, c13 int, c14 int, c15 int, c16 int,
key a001_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a002_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a003_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a004_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a005_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a006_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a007_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a008_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a009_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a010_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a011_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a012_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a013_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a014_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a015_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a016_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a017_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a018_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a019_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a020_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a021_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a022_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a023_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a024_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a025_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a026_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a027_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a028_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a029_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a030_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a031_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a032_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a033_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a034_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a035_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a036_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a037_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a038_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a039_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a040_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a041_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a042_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a043_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a044_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a045_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a046_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a047_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a048_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a049_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a050_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a051_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a052_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a053_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a054_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a055_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a056_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a057_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a058_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a059_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a060_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a061_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a062_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a063_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a064_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16)
);
Warnings:
Warning	1831	Duplicate index 'a002_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a003_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a004_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a005_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a006_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a007_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a008_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a009_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a010_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a011_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a012_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a013_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a014_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a015_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a016_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a017_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a018_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a019_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a020_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a021_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a022_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a023_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a024_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a025_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a026_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a027_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a028_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a029_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a030_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a031_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a032_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a033_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a034_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a035_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a036_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a037_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a038_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a039_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a040_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a041_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a042_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a043_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a044_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a045_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a046_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a047_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a048_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a049_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a050_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a051_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a052_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a053_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a054_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a055_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a056_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a057_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a058_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a059_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a060_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a061_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a062_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a063_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a064_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) DEFAULT NULL,
  `c2` int(11) DEFAULT NULL,
  `c3` int(11) DEFAULT NULL,
  `c4` int(11) DEFAULT NULL,
  `c5` int(11) DEFAULT NULL,
  `c6` int(11) DEFAULT NULL,
  `c7` int(11) DEFAULT NULL,
  `c8` int(11) DEFAULT NULL,
  `c9` int(11) DEFAULT NULL,
  `c10` int(11) DEFAULT NULL,
  `c11` int(11) DEFAULT NULL,
  `c12` int(11) DEFAULT NULL,
  `c13` int(11) DEFAULT NULL,
  `c14` int(11) DEFAULT NULL,
  `c15` int(11) DEFAULT NULL,
  `c16` int(11) DEFAULT NULL,
  KEY `a001_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a002_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a003_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a004_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a005_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a006_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a007_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a008_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a009_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a010_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a011_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a012_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a013_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a014_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a015_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a016_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a017_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a018_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a019_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a020_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a021_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a022_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a023_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a024_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a025_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a026_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a027_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a028_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a029_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a030_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a031_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a032_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a033_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a034_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a035_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a036_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a037_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a038_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a039_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a040_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a041_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a042_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a043_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a044_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a045_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a046_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a047_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a048_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a049_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a050_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a051_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a052_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a053_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a054_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a055_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a056_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a057_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a058_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a059_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a060_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a061_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a062_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a063_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a064_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
flush tables;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) DEFAULT NULL,
  `c2` int(11) DEFAULT NULL,
  `c3` int(11) DEFAULT NULL,
  `c4` int(11) DEFAULT NULL,
  `c5` int(11) DEFAULT NULL,
  `c6` int(11) DEFAULT NULL,
  `c7` int(11) DEFAULT NULL,
  `c8` int(11) DEFAULT NULL,
  `c9` int(11) DEFAULT NULL,
  `c10` int(11) DEFAULT NULL,
  `c11` int(11) DEFAULT NULL,
  `c12` int(11) DEFAULT NULL,
  `c13` int(11) DEFAULT NULL,
  `c14` int(11) DEFAULT NULL,
  `c15` int(11) DEFAULT NULL,
  `c16` int(11) DEFAULT NULL,
  KEY `a001_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a002_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a003_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a004_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a005_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a006_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a007_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a008_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a009_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a010_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a011_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a012_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a013_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a014_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a015_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a016_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a017_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a018_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a019_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a020_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a021_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a022_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a023_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a024_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a025_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a026_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a027_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a028_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a029_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a030_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a031_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a032_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a033_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a034_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a035_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a036_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a037_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a038_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a039_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a040_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a041_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a042_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a043_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a044_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a045_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a046_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a047_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a048_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a049_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a050_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a051_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a052_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a053_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a054_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a055_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a056_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a057_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a058_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a059_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a060_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a061_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a062_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a063_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a064_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 (c1 int, c2 int, c3 int, c4 int, c5 int, c6 int, c7 int, 
c8 int, c9 int, c10 int, c11 int, c12 int, c13 int, c14 int, c15 int, c16 int);
alter table t1
add key a001_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a002_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a003_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a004_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a005_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a006_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a007_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a008_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a009_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a010_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a011_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a012_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a013_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a014_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a015_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a016_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a017_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a018_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a019_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a020_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a021_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a022_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a023_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a024_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a025_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a026_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a027_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a028_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a029_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a030_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a031_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a032_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a033_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a034_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a035_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a036_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a037_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a038_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a039_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a040_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a041_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a042_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a043_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a044_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a045_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a046_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a047_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a048_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a049_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a050_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a051_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a052_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a053_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a054_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a055_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a056_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a057_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a058_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a059_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a060_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a061_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a062_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a063_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a064_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16);
Warnings:
Warning	1831	Duplicate index 'a002_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a003_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a004_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a005_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a006_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a007_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a008_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a009_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a010_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a011_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a012_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a013_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a014_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a015_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a016_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a017_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a018_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a019_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a020_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a021_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a022_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a023_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a024_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a025_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a026_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a027_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a028_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a029_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a030_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a031_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a032_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a033_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a034_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a035_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a036_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a037_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a038_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a039_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a040_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a041_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a042_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a043_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a044_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a045_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a046_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a047_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a048_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a049_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a050_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a051_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a052_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a053_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a054_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a055_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a056_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a057_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a058_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a059_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a060_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a061_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a062_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a063_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
Warning	1831	Duplicate index 'a064_long_123456789_123456789_123456789_123456789_123456789_1234' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) DEFAULT NULL,
  `c2` int(11) DEFAULT NULL,
  `c3` int(11) DEFAULT NULL,
  `c4` int(11) DEFAULT NULL,
  `c5` int(11) DEFAULT NULL,
  `c6` int(11) DEFAULT NULL,
  `c7` int(11) DEFAULT NULL,
  `c8` int(11) DEFAULT NULL,
  `c9` int(11) DEFAULT NULL,
  `c10` int(11) DEFAULT NULL,
  `c11` int(11) DEFAULT NULL,
  `c12` int(11) DEFAULT NULL,
  `c13` int(11) DEFAULT NULL,
  `c14` int(11) DEFAULT NULL,
  `c15` int(11) DEFAULT NULL,
  `c16` int(11) DEFAULT NULL,
  KEY `a001_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a002_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a003_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a004_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a005_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a006_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a007_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a008_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a009_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a010_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a011_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a012_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a013_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a014_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a015_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a016_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a017_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a018_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a019_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a020_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a021_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a022_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a023_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a024_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a025_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a026_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a027_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a028_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a029_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a030_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a031_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a032_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a033_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a034_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a035_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a036_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a037_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a038_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a039_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a040_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a041_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a042_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a043_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a044_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a045_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a046_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a047_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a048_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a049_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a050_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a051_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a052_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a053_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a054_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a055_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a056_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a057_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a058_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a059_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a060_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a061_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a062_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a063_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a064_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
flush tables;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) DEFAULT NULL,
  `c2` int(11) DEFAULT NULL,
  `c3` int(11) DEFAULT NULL,
  `c4` int(11) DEFAULT NULL,
  `c5` int(11) DEFAULT NULL,
  `c6` int(11) DEFAULT NULL,
  `c7` int(11) DEFAULT NULL,
  `c8` int(11) DEFAULT NULL,
  `c9` int(11) DEFAULT NULL,
  `c10` int(11) DEFAULT NULL,
  `c11` int(11) DEFAULT NULL,
  `c12` int(11) DEFAULT NULL,
  `c13` int(11) DEFAULT NULL,
  `c14` int(11) DEFAULT NULL,
  `c15` int(11) DEFAULT NULL,
  `c16` int(11) DEFAULT NULL,
  KEY `a001_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a002_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a003_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a004_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a005_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a006_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a007_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a008_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a009_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a010_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a011_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a012_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a013_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a014_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a015_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a016_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a017_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a018_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a019_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a020_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a021_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a022_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a023_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a024_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a025_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a026_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a027_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a028_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a029_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a030_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a031_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a032_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a033_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a034_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a035_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a036_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a037_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a038_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a039_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a040_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a041_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a042_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a043_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a044_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a045_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a046_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a047_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a048_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a049_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a050_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a051_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a052_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a053_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a054_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a055_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a056_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a057_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a058_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a059_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a060_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a061_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a062_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a063_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
  KEY `a064_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
alter table t1 add key 
a065_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16);
ERROR 42000: Too many keys specified; max 64 keys allowed
drop table t1;
create table t1 (c1 int, c2 int, c3 int, c4 int, c5 int, c6 int, c7 int, 
c8 int, c9 int, c10 int, c11 int, c12 int, c13 int, c14 int, c15 int, 
c16 int, c17 int);
alter table t1 add key i1 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16, c17);
ERROR 42000: Too many key parts specified; max 16 parts allowed
alter table t1 add key 
a001_long_123456789_123456789_123456789_123456789_123456789_12345 (c1);
ERROR 42000: Identifier name 'a001_long_123456789_123456789_123456789_123456789_123456789_12345' is too long
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) DEFAULT NULL,
  `c2` int(11) DEFAULT NULL,
  `c3` int(11) DEFAULT NULL,
  `c4` int(11) DEFAULT NULL,
  `c5` int(11) DEFAULT NULL,
  `c6` int(11) DEFAULT NULL,
  `c7` int(11) DEFAULT NULL,
  `c8` int(11) DEFAULT NULL,
  `c9` int(11) DEFAULT NULL,
  `c10` int(11) DEFAULT NULL,
  `c11` int(11) DEFAULT NULL,
  `c12` int(11) DEFAULT NULL,
  `c13` int(11) DEFAULT NULL,
  `c14` int(11) DEFAULT NULL,
  `c15` int(11) DEFAULT NULL,
  `c16` int(11) DEFAULT NULL,
  `c17` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
"End of tests"

Man Man