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# =========== Purpose ===========
#
# To test that if different primary key is used on master and slave
# and if there is an  Unique key present on slave then that should be
# used for lookup replicated rows.
# Earlier in above cases a TABLE_SCAN was being performed which can be
# slower than INDEX_SCAN that will be performed after the bug fix.
#
# ========= Reference ==========
# Bug#26450129:DEAD BRANCH IN SEARCH_KEY_IN_TABLE()

# The status variable Slave_rows_last_search_algorithm_used is defined
# only in Debug mode, running this test in non-debug mode will cause
# assert failure.
--source include/have_debug.inc
--source include/have_binlog_format_row.inc
--let $rpl_skip_start_slave = 1
--source include/master-slave.inc

--echo ==== Initialize ====

--source include/rpl_connection_slave.inc
SET @old_slave_rows_search_algorithms = @@global.slave_rows_search_algorithms;
SET @@global.slave_rows_search_algorithms = 'INDEX_SCAN,TABLE_SCAN';
--source include/start_slave.inc

--source include/rpl_connection_master.inc
SET @@session.binlog_row_image = 'MINIMAL';

SET @@session.sql_log_bin = 0;
CREATE TABLE t1 (a INT, b INT, PRIMARY KEY(b));
SET @@session.sql_log_bin = 1;
--source include/rpl_connection_slave.inc
CREATE TABLE t1 (a INT, b INT NOT NULL, UNIQUE KEY(b), PRIMARY KEY(a));
--source include/rpl_connection_master.inc

--let $row_count = 100
--let $rows = (0, 0)
--let $i = 1
while ($i < $row_count) {
  --let $rows = $rows, ($i, $i)
  --inc $i
}
--disable_query_log
--echo INSERT INTO t1 VALUES [$row_count rows];
eval INSERT INTO t1 VALUES $rows;
--enable_query_log
--source include/sync_slave_sql_with_master.inc

--echo ==== Test ====

--source include/rpl_connection_master.inc

DELETE FROM t1 WHERE b != 0 ORDER BY b DESC;
--source include/sync_slave_sql_with_master.inc


--let $assert_cond = "[SHOW STATUS LIKE \"Slave_rows_last_search_algorithm_used\", Value, 1]" = "INDEX_SCAN"
--let $assert_text= The search algorithm used while deleting rows is INDEX_SCAN, in the code before this bug it was TABLE_SCAN
--source include/assert.inc

# Cleanup
--source include/rpl_connection_master.inc
DROP TABLE t1;
--source include/sync_slave_sql_with_master.inc
--source include/stop_slave.inc
SET @@global.slave_rows_search_algorithms = @old_slave_rows_search_algorithms;

--let $rpl_only_running_threads=1
--source include/rpl_end.inc