MINI MINI MANI MO

# === Purpose ===
#
# When binlog_order_commits is off then binlog rotate will wait for 'm_prep_xids' decrease to zero.
# However 'm_prep_xids' is decreased before update thd's GTID to 'executed_gtids' so GTID may be missed
# in the next binlog file's Previous_gtids event (see function MYSQL_BIN_LOG::finish_commit)
#
# ==== Requirements ====
#
# R1. Client transactions are guaranteed to have monotonically increasing GTIDs
# without gaps between the generated numbers.
#
# === Implementation ====
#
# Ensure GTID XID is decreased after commit
# 1. Create table t1. GTID 1
# 2. Insert into t1. GTID 2 in a new connection. Stop after commit and decrease XID.
# 3. Insert into t1. GTID 3. Rotate log file. XID 1-3 should be used in 'master-bin.000002'.
# 4. Check GTID are used out by looking at log file 'master-bin.000002'.
#
# === References ===
#
# BUG #34930969	Contribution by Tencent: Previous_gtids miss gtid when binlog_order_commits off
#
--source include/have_debug.inc
--source include/have_innodb.inc
--source include/have_debug.inc
--source include/have_gtid.inc
--source include/have_log_bin.inc

--echo #
--echo # Use default connection to master.
--echo #

--connection default

RESET MASTER;

SET @old_binlog_order_commits = @@global.binlog_order_commits;
SET GLOBAL binlog_order_commits = 0;

--echo #
--echo # Create table. Use GTID 1
--echo #

CREATE TABLE t1 (id INT PRIMARY KEY);

--echo #
--echo # Make another connection. Set to stop at after dec_prep_xids.
--echo #

--connect(con1,localhost,root,,)
SET DEBUG_SYNC = "after_dec_prep_xids SIGNAL signal.after_dec_prep_xids_reached WAIT_FOR signal.after_dec_prep_xids_unblock";

--echo #
--echo # Use GTID 2. Stop after dec_prep_xids. If commit is executed before
--echo # dec_prep_xids then GTID 2 will be used out.
--echo #

--send
INSERT INTO t1 VALUES(1);

--echo #
--echo # Use default connection to master.
--echo #

--connection default

--echo #
--echo # Wait until after_dec_prep_xids is reached
--echo #

SET DEBUG_SYNC = "now WAIT_FOR signal.after_dec_prep_xids_reached";

--echo #
--echo # Use GTID 3. Force to rotate to log 'master-bin.000002'
--echo # All GTID 1-3 should be used in 'master-bin.000001'
--echo #

SET SESSION debug = "+d,force_rotate";
INSERT INTO t1 VALUES(2);
SET SESSION debug = "-d,force_rotate";

--echo #
--echo # Add transaction in new binary log 'master-bin.000002'
--echo # GTID 4 should be used.
--echo #

SET DEBUG_SYNC = 'now SIGNAL signal.after_dec_prep_xids_unblock';
INSERT INTO t1 VALUES(3);

--echo #
--echo # Check all GTID 1-3 are used by looking at 'master-bin.000002'
--echo #

--let $assert_cond = \'[\'SHOW BINLOG EVENTS IN "master-bin.000002" LIMIT 1, 1\', Info, 1]\' LIKE \'%1-3\'
--let $assert_text = Previous_gtids should use UUID:1-3 GTID
--source include/assert.inc

--echo #
--echo # Cleanup
--echo #

DROP TABLE t1;
SET GLOBAL binlog_order_commits = @old_binlog_order_commits;