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# ==== Purpose ====
#
# Background: For 5.7 binary logs (after WL#7592), the slave applier
# thread sets GTID_NEXT according to the Gtid_log_event or
# Anonymous_log_event preceding every transaction.  For 5.6 binary
# logs using GTID_MODE=ON, it does the same.  But for 5.6 binary log
# using GTID_MODE=OFF, or for 5.5 or earlier binary logs, there are no
# Gtid_log_events or Anonymous_gtid_log_event.  In order to set
# gtid_next correctly also for this case, we use a special mechanism:
# when any Format_description_log_event is applied, it sets
# thd->variables.gtid_next.type=NOT_YET_DETERMINED_GROUP.  The next
# statement to execute then sets the real value for gtid_next: if the
# next statement is SET GTID_NEXT, then gtid_next is set
# accordingly. If the next statement is anything else, it assumes that
# this is an old binary log and changes NOT_YET_DETERMINED_GROUP to
# ANONYMOUS_GROUP (which causes an error to be generated if
# GTID_MODE=ON).
#
# The code that changes NOT_YET_DETERMINED_GROUP to ANONYMOUS_GROUP
# invoked for SQL statements (from mysql_parse). This normally covers
# also the RBR case, because RBR transactions begin with a
# query_log_event(BEGIN), so it will set gtid_next=ANONYMOUS for the
# BEGIN statement.
#
# However, if the applier thread begins execution in the middle of a
# transaction, it is possible that a row event is processed when
# gtid_next.type is NOT_YET_DETERMINED_GROUP.  This can happen if
# an explicit CHANGE MASTER TO RELAY_LOG_POS statement positions the
# applier thread after the BEGIN statement, or if an explicit CHANGE
# MASTER TO MASTER_LOG_POS statement positions the receiver thread in
# the middle of a transaction.
#
# Therefore, even Rows_log_events need to upgrade
# NOT_YET_DETERMINED_GROUP to ANONYMOUS.  This test verifies that this
# logic works correctly.
#
# ==== Implementation ====
#
# 1. Verify basic properties of GTID_NEXT = NOT_YET_DETERMINED:
#    1.1. Format_description_event sets GTID_NEXT = NOT_YET_DETERMINED.
#    1.2. DO, SELECT, SHOW, and SET don't change NOT_YET_DETERMINED
#         to ANONYMOUS.
#    1.3. Other SQL statements change NOT_YET_DETERMINED to ANONYMOUS
#         when GTID_MODE = OFF.
#    1.4. Row injection using BINLOG statement changes
#         NOT_YET_DETERMINED to ANONYMOUS when GTID_MODE = OFF.
#    1.5. Other SQL statements generate an error if GTID_NEXT =
#         NOT_YET_DETERMINED and GTID_MODE = ON.
#    1.6. Row injection using BINLOG statement generates an error if
#         GTID_NEXT = NOT_YET_DETERMINED and GTID_MODE = ON.
#    1.7. It is allowed to set any other value for GTID_NEXT after
#         it has been set to NOT_YET_DETERMINED.
# 2. Position the slave receiver thread after a BEGIN event in the
#    master's binary log and verify that replication works (no crash).
# 3. Position the slave applier thread after a BEGIN event in the
#    slave's relay log and verify that replication works (no crash).
#
# ==== Related bugs and worklogs ====
#
# WL#3584: Global Transaction Identifiers (GTIDs)
# - The logic of NOT_YET_DETERMINED_GROUP was introduced in this worklog.
# WL#7592: GTIDs: generate Gtid_log_event and Previous_gtids_log_event always
# - The code was refactored in this worklog (and the bug introduced).
# BUG#20883676: ASSERT `THD->OWNED_GTID.SIDNO == THD::OWNED_SIDNO_ANONYMOUS'
#               AT BINLOG.CC:1144
# - The logic was corrected again in this bug.

# Not meaningful to test with GTID_MODE=ON.
--source include/not_gtid_enabled.inc

# Test mixed mode to verify that SQL statements convert NOT_YET_DETERMINED
# to ANONYMOUS. Test row mode to verify that row events convert
# NOT_YET_DETERMINED to ANONYMOUS. No need to test other formats.
--source include/have_binlog_format_mixed_or_row.inc

# MTS does not allow row events outside transactions.
--source include/not_mts_slave_parallel_workers.inc

--source include/master-slave.inc

--echo #### Initialize ####

CREATE TABLE t1 (a INT);
--source include/sync_slave_sql_with_master.inc
CALL mtr.add_suppression('QUERY.*COMMIT or ROLLBACK.* or XID_LOG_EVENT is not expected in an event stream outside a transaction');
CALL mtr.add_suppression('An unexpected event sequence was detected by the IO thread while queuing the event received from master');

--echo #### 1. Check basic properties of GTID_NEXT = NOT_YET_DETERMINED ####

# This is a 5.7 Format_description_log_event.
let $fd_event=
'C9BAVQ8BAAAAdwAAAHsAAAABAAQANS43LjgtcmMtZGVidWctbG9nAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAL0EBVEzgNAAgAEgAEBAQEEgAAXwAEGggAAAAICAgCAAAACgoKKioAEjUA
AdVXOVA=';

--echo ---- 1.1. Format_description_log_event sets NOT_YET_DETERMINED ----
eval BINLOG $fd_event;
SELECT @@SESSION.GTID_NEXT;

--echo ---- 1.2. DO, SELECT, SHOW, and SET don't change GTID_NEXT ----
DO 1;
SELECT 1;
SHOW VARIABLES LIKE 'whatever';
SET @foo = 1;
SELECT @@SESSION.GTID_NEXT;

--echo ---- 1.3. Other stm changes NOT_YET_DETERMINED to ANONYMOUS if GTID_MODE=OFF ----
BEGIN;
SELECT @@SESSION.GTID_NEXT;
ROLLBACK;
SET @@SESSION.GTID_NEXT = 'AUTOMATIC';

--echo ---- 1.4. Row injection changes NOT_YET_DETERMINED to ANONYMOUS if GTID_MODE=OFF ----
eval BINLOG $fd_event;
SELECT @@SESSION.GTID_NEXT;
BINLOG '
qyhTVRMBAAAALQAAAPIBAAAAAGwAAAAAAAEABHRlc3QAAnQxAAEDAAGFeQAI
qyhTVR4BAAAAKAAAABoCAAAAAGwAAAAAAAEAAgAB//4BAAAAcd2jbw==
'/*!*/;
SELECT @@SESSION.GTID_NEXT;
ROLLBACK;
SET @@SESSION.GTID_NEXT = 'AUTOMATIC';

--echo ---- 1.5. Other stm generates error for NOT_YET_DETERMINED if GTID_MODE=ON ----
--let $rpl_set_enforce_gtid_consistency= 1
--let $rpl_gtid_mode= ON
--source include/rpl_set_gtid_mode.inc

eval BINLOG $fd_event;
SELECT @@SESSION.GTID_NEXT;
--error ER_CANT_SET_GTID_NEXT_TO_ANONYMOUS_WHEN_GTID_MODE_IS_ON
BEGIN;
SET @@SESSION.GTID_NEXT = 'AUTOMATIC';

--echo ---- 1.6. Row injection generates error for NOT_YET_DETERMINED if GTID_MODE=ON ----
eval BINLOG $fd_event;
SELECT @@SESSION.GTID_NEXT;
--error ER_CANT_SET_GTID_NEXT_TO_ANONYMOUS_WHEN_GTID_MODE_IS_ON
BINLOG '
qyhTVRMBAAAALQAAAPIBAAAAAGwAAAAAAAEABHRlc3QAAnQxAAEDAAGFeQAI
qyhTVR4BAAAAKAAAABoCAAAAAGwAAAAAAAEAAgAB//4BAAAAcd2jbw==
'/*!*/;
SET @@SESSION.GTID_NEXT = 'AUTOMATIC';

--let $rpl_set_enforce_gtid_consistency= 0
--let $rpl_gtid_mode= OFF
--source include/rpl_set_gtid_mode.inc

--echo ---- 1.7.1 Can set AUTOMATIC after NOT_YET_DETERMINED ----
eval BINLOG $fd_event;
SELECT @@SESSION.GTID_NEXT;
SET @@SESSION.GTID_NEXT = 'AUTOMATIC';
SELECT @@SESSION.GTID_NEXT;

--echo ---- 1.7.2 Can set DEFAULT after NOT_YET_DETERMINED ----
eval BINLOG $fd_event;
SELECT @@SESSION.GTID_NEXT;
SET @@SESSION.GTID_NEXT = DEFAULT;
SELECT @@SESSION.GTID_NEXT;

--echo ---- 1.7.3 Can set ANONYMOUS after NOT_YET_DETERMINED ----
eval BINLOG $fd_event;
SELECT @@SESSION.GTID_NEXT;
SET @@SESSION.GTID_NEXT = 'ANONYMOUS';
SELECT @@SESSION.GTID_NEXT;
ROLLBACK;
SET @@SESSION.GTID_NEXT = 'AUTOMATIC';

--echo ---- 1.7.4 Can set GTID after NOT_YET_DETERMINED ----
SET GLOBAL GTID_MODE = OFF_PERMISSIVE;
eval BINLOG $fd_event;
SELECT @@SESSION.GTID_NEXT;
SET GTID_NEXT = 'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa:1';
SELECT @@SESSION.GTID_NEXT;
ROLLBACK;
SET @@SESSION.GTID_NEXT = 'AUTOMATIC';
SET GLOBAL GTID_MODE = OFF;

--echo #### 2. CHANGE MASTER TO MASTER_LOG_POS ####

--connection slave
--source include/stop_slave_io.inc
--connection master
--let $file= query_get_value(SHOW MASTER STATUS, File, 1)
--let $position= query_get_value(SHOW MASTER STATUS, Position, 1)
INSERT INTO t1 VALUES (1);

# Force slave to skip the Anonymous_gtid_log_event and
# Query_log_event(BEGIN) so that the first event it sees is a
# Table_map_log_event.
--let $position= query_get_value(SHOW BINLOG EVENTS IN '$file' FROM $position, End_log_pos, 2)

--connection slave
--replace_result $file FILE $position POSITION
eval CHANGE MASTER TO MASTER_LOG_FILE = '$file', MASTER_LOG_POS = $position;
--source include/start_slave_io.inc

--connection master
--source include/sync_slave_sql_with_master.inc

--echo #### 3. CHANGE MASTER TO RELAY_LOG_POS ####

--let $file= query_get_value(SHOW SLAVE STATUS, Relay_Log_File, 1)
--let $position= query_get_value(SHOW SLAVE STATUS, Relay_Log_Pos, 1)
--source include/stop_slave_sql.inc

--connection master
INSERT INTO t1 VALUES (2);
--source include/sync_slave_io_with_master.inc
--let $position = query_get_value(SHOW RELAYLOG EVENTS IN '$file' FROM $position, Pos, 3)

--replace_result $file FILE $position POSITION
eval CHANGE MASTER TO RELAY_LOG_FILE = '$file', RELAY_LOG_POS = $position;
--source include/start_slave.inc

--connection master
--source include/sync_slave_sql_with_master.inc

--echo #### Clean up ####

--connection master
DROP TABLE t1;

--source include/rpl_end.inc