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c86accc7ac
Problem: ======== During point in time recovery of binary log syntax error is reported for BEGIN statement and recovery fails. Analysis: ========= In MariaDB 10.3 and later, setting the sql_mode system variable to Oracle allows the server to understand a subset of Oracle's PL/SQL language. When sql_mode=ORACLE is set, it switches the parser from the MariaDB parser to Oracle compatible parser. With this change 'BEGIN' is not considered as 'START TRANSACTION'. Hence the syntax error is reported. Fix: === At preset 'BEGIN' query is generated from 'Gtid_log_event::print'. The current session specific 'sql_mode' information is not present as part of 'Gtid_log_event'. If it was available then, mysqlbinlog tool can make use of 'sql_mode == ORACLE' and can output "START TRANSACTION" in this particular mode and for other sql_modes it will write "BEGIN" as part of output. Since it is not available 'mysqlbinlog' tool will output all 'BEGIN' statements as 'START TRANSACTION' irrespective of 'sql_mode'.
207 lines
6.9 KiB
Text
207 lines
6.9 KiB
Text
SET GLOBAL log_bin_compress=on;
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SET GLOBAL log_bin_compress_min_len=10;
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CREATE TABLE t1 (pk INT PRIMARY KEY, f1 INT, f2 INT, f3 TINYINT, f4 MEDIUMINT, f5 BIGINT, f6 INT, f7 INT, f8 char(1));
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CREATE TABLE t2 (pk INT PRIMARY KEY, f1 INT, f2 INT, f3 INT, f4 INT, f5 MEDIUMINT, f6 INT, f7 INT, f8 char(1));
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INSERT INTO t1 VALUES (10, 1, 2, 3, 4, 5, 6, 7, "");
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INSERT INTO t1 VALUES (11, 1, 2, 3, 4, 5, 6, 7, NULL);
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INSERT INTO t1 VALUES (12, 1, 2, 3, NULL, 5, 6, 7, "A");
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INSERT INTO t1 VALUES (13, 1, 2, 3, 0, 5, 6, 7, "A");
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INSERT INTO t2 SELECT * FROM t1;
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UPDATE t2 SET f4=5 WHERE f4>0 or f4 is NULL;
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DELETE FROM t1;
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DELETE FROM t2;
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FLUSH BINARY LOGS;
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/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
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/*!40019 SET @@session.max_insert_delayed_threads=0*/;
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/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
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DELIMITER /*!*/;
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# at 4
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#<date> server id 1 end_log_pos 256 CRC32 XXX Start: xxx
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ROLLBACK/*!*/;
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# at 256
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#<date> server id 1 end_log_pos 285 CRC32 XXX Gtid list []
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# at 285
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#<date> server id 1 end_log_pos 329 CRC32 XXX Binlog checkpoint master-bin.000001
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# at 329
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#<date> server id 1 end_log_pos 371 CRC32 XXX GTID 0-1-1 ddl
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/*!100101 SET @@session.skip_parallel_replication=0*//*!*/;
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/*!100001 SET @@session.gtid_domain_id=0*//*!*/;
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/*!100001 SET @@session.server_id=1*//*!*/;
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/*!100001 SET @@session.gtid_seq_no=1*//*!*/;
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# at 371
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#<date> server id 1 end_log_pos 533 CRC32 XXX Query_compressed thread_id=5 exec_time=x error_code=0
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use `test`/*!*/;
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SET TIMESTAMP=X/*!*/;
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SET @@session.pseudo_thread_id=5/*!*/;
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SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1, @@session.check_constraint_checks=1/*!*/;
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SET @@session.sql_mode=#/*!*/;
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SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
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/*!\C latin1 *//*!*/;
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SET @@session.character_set_client=8,@@session.collation_connection=8,@@session.collation_server=#/*!*/;
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SET @@session.lc_time_names=0/*!*/;
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SET @@session.collation_database=DEFAULT/*!*/;
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CREATE TABLE t1 (pk INT PRIMARY KEY, f1 INT, f2 INT, f3 TINYINT, f4 MEDIUMINT, f5 BIGINT, f6 INT, f7 INT, f8 char(1))
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/*!*/;
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# at 533
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#<date> server id 1 end_log_pos 575 CRC32 XXX GTID 0-1-2 ddl
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/*!100001 SET @@session.gtid_seq_no=2*//*!*/;
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# at 575
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#<date> server id 1 end_log_pos 727 CRC32 XXX Query_compressed thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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CREATE TABLE t2 (pk INT PRIMARY KEY, f1 INT, f2 INT, f3 INT, f4 INT, f5 MEDIUMINT, f6 INT, f7 INT, f8 char(1))
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/*!*/;
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# at 727
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#<date> server id 1 end_log_pos 769 CRC32 XXX GTID 0-1-3
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/*!100001 SET @@session.gtid_seq_no=3*//*!*/;
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START TRANSACTION
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/*!*/;
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# at 769
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#<date> server id 1 end_log_pos 897 CRC32 XXX Query_compressed thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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INSERT INTO t1 VALUES (10, 1, 2, 3, 4, 5, 6, 7, "")
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/*!*/;
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# at 897
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#<date> server id 1 end_log_pos 970 CRC32 XXX Query thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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COMMIT
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/*!*/;
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# at 970
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#<date> server id 1 end_log_pos 1012 CRC32 XXX GTID 0-1-4
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/*!100001 SET @@session.gtid_seq_no=4*//*!*/;
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START TRANSACTION
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/*!*/;
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# at 1012
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#<date> server id 1 end_log_pos 1140 CRC32 XXX Query_compressed thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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INSERT INTO t1 VALUES (11, 1, 2, 3, 4, 5, 6, 7, NULL)
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/*!*/;
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# at 1140
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#<date> server id 1 end_log_pos 1213 CRC32 XXX Query thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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COMMIT
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/*!*/;
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# at 1213
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#<date> server id 1 end_log_pos 1255 CRC32 XXX GTID 0-1-5
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/*!100001 SET @@session.gtid_seq_no=5*//*!*/;
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START TRANSACTION
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/*!*/;
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# at 1255
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#<date> server id 1 end_log_pos 1385 CRC32 XXX Query_compressed thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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INSERT INTO t1 VALUES (12, 1, 2, 3, NULL, 5, 6, 7, "A")
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/*!*/;
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# at 1385
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#<date> server id 1 end_log_pos 1458 CRC32 XXX Query thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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COMMIT
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/*!*/;
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# at 1458
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#<date> server id 1 end_log_pos 1500 CRC32 XXX GTID 0-1-6
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/*!100001 SET @@session.gtid_seq_no=6*//*!*/;
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START TRANSACTION
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/*!*/;
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# at 1500
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#<date> server id 1 end_log_pos 1627 CRC32 XXX Query_compressed thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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INSERT INTO t1 VALUES (13, 1, 2, 3, 0, 5, 6, 7, "A")
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/*!*/;
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# at 1627
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#<date> server id 1 end_log_pos 1700 CRC32 XXX Query thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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COMMIT
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/*!*/;
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# at 1700
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#<date> server id 1 end_log_pos 1742 CRC32 XXX GTID 0-1-7
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/*!100001 SET @@session.gtid_seq_no=7*//*!*/;
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START TRANSACTION
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/*!*/;
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# at 1742
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#<date> server id 1 end_log_pos 1850 CRC32 XXX Query_compressed thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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INSERT INTO t2 SELECT * FROM t1
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/*!*/;
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# at 1850
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#<date> server id 1 end_log_pos 1923 CRC32 XXX Query thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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COMMIT
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/*!*/;
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# at 1923
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#<date> server id 1 end_log_pos 1965 CRC32 XXX GTID 0-1-8
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/*!100001 SET @@session.gtid_seq_no=8*//*!*/;
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START TRANSACTION
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/*!*/;
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# at 1965
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#<date> server id 1 end_log_pos 2082 CRC32 XXX Query_compressed thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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UPDATE t2 SET f4=5 WHERE f4>0 or f4 is NULL
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/*!*/;
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# at 2082
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#<date> server id 1 end_log_pos 2155 CRC32 XXX Query thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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COMMIT
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/*!*/;
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# at 2155
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#<date> server id 1 end_log_pos 2197 CRC32 XXX GTID 0-1-9
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/*!100001 SET @@session.gtid_seq_no=9*//*!*/;
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START TRANSACTION
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/*!*/;
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# at 2197
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#<date> server id 1 end_log_pos 2288 CRC32 XXX Query_compressed thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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DELETE FROM t1
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/*!*/;
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# at 2288
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#<date> server id 1 end_log_pos 2361 CRC32 XXX Query thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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COMMIT
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/*!*/;
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# at 2361
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#<date> server id 1 end_log_pos 2403 CRC32 XXX GTID 0-1-10
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/*!100001 SET @@session.gtid_seq_no=10*//*!*/;
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START TRANSACTION
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/*!*/;
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# at 2403
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#<date> server id 1 end_log_pos 2494 CRC32 XXX Query_compressed thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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DELETE FROM t2
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/*!*/;
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# at 2494
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#<date> server id 1 end_log_pos 2567 CRC32 XXX Query thread_id=5 exec_time=x error_code=0
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SET TIMESTAMP=X/*!*/;
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COMMIT
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/*!*/;
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# at 2567
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#<date> server id 1 end_log_pos 2615 CRC32 XXX Rotate to master-bin.000002 pos: 4
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DELIMITER ;
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# End of log file
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ROLLBACK /* added by mysqlbinlog */;
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/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
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/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
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Test mysqlbinlog | mysql type point-in-time recovery with compressed events.
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FLUSH BINARY LOGS;
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CREATE TABLE t3 (a INT PRIMARY KEY, b INT, c VARCHAR(100));
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INSERT INTO t3 VALUES (0, 10, "hello");
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BEGIN;
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INSERT INTO t3 VALUES (1, 10, "cat"), (2, 10, "mouse"), (3, 10, "dog");
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INSERT INTO t3 VALUES (4, 10, "goodbye");
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COMMIT;
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DELETE FROM t3 WHERE a=2;
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SELECT * FROM t3 ORDER BY a;
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a b c
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0 10 hello
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1 10 cat
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3 10 dog
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4 10 goodbye
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FLUSH LOGS;
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DROP TABLE t3;
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SELECT * FROM t3 ORDER BY a;
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a b c
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0 10 hello
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1 10 cat
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3 10 dog
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4 10 goodbye
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DROP TABLE t1,t2,t3;
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SET GLOBAL log_bin_compress=off;
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SET GLOBAL log_bin_compress_min_len=256;
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