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BUG#11758262 - 50439: MARK INSERT...SEL...ON DUP KEY UPD,REPLACE...SEL,CREATE...[IGN|REPL] SEL

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Problem: The following statements can cause the slave to go out of sync 
if logged in statement format: 
INSERT IGNORE...SELECT 
INSERT ... SELECT ... ON DUPLICATE KEY UPDATE 
REPLACE ... SELECT 
UPDATE IGNORE :
CREATE ... IGNORE SELECT 
CREATE ... REPLACE SELECT  
           
Background: Since the order of the rows returned by the SELECT 
statement or otherwise may differ on master and slave, therefore
the above statements may cuase the salve to go out of sync with
the master. 
      
Fix:
Issue a warning when statements like the above are exectued and 
the bin-logging format is statement. If the logging format is mixed,
use row based logging. Marking a statement as unsafe has been 
done in the sql/sql_parse.cc instead of sql/sql_yacc.cc, because while
parsing for a token has been done we cannot be sure if the parsing
of the other tokens has been done as well.
      
Six new warning  messages has been added for each unsafe statement. 
      
binlog.binlog_unsafe.test has been updated to incoporate these additional unsafe statments.


******
BUG#11758262 - 50439: MARK INSERT...SEL...ON DUP KEY UPD,REPLACE...SEL,CREATE...[IGN|REPL] SEL 
Problem: The following statements can cause the slave to go out of sync 
if logged in statement format: 
INSERT IGNORE...SELECT 
INSERT ... SELECT ... ON DUPLICATE KEY UPDATE 
REPLACE ... SELECT 
UPDATE IGNORE :
CREATE ... IGNORE SELECT 
CREATE ... REPLACE SELECT  
           
Background: Since the order of the rows returned by the SELECT 
statement or otherwise may differ on master and slave, therefore
the above statements may cuase the salve to go out of sync with
the master. 
      
Fix:
Issue a warning when statements like the above are exectued and 
the bin-logging format is statement. If the logging format is mixed,
use row based logging. Marking a statement as unsafe has been 
done in the sql/sql_parse.cc instead of sql/sql_yacc.cc, because while
parsing for a token has been done we cannot be sure if the parsing
of the other tokens has been done as well.
      
Six new warning  messages has been added for each unsafe statement. 
      
binlog.binlog_unsafe.test has been updated to incoporate these additional unsafe statments.
This commit is contained in:
Rohit Kalhans
2011-09-29 14:47:27 +05:30
parent 3cf0b4cc17
commit b140784fbc
18 changed files with 294 additions and 152 deletions
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4
mysql-test/r/commit_1innodb.result
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@ -549,6 +549,8 @@ SUCCESS
# 15. Read-write statement: UPDATE IGNORE, change 0 rows.
#
update ignore t1 set a=2 where a=1;
Warnings:
Note 1592 Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT. UPDATE IGNORE is unsafe because the order in which rows are updated determines which (if any) rows are ignored. This order cannot be predicted and may differ on master and the slave.
call p_verify_status_increment(2, 2, 1, 0);
SUCCESS
@ -814,6 +816,8 @@ SUCCESS
insert into t2 select a from t1;
commit;
replace into t2 select a from t1;
Warnings:
Note 1592 Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT. REPLACE... SELECT is unsafe because the order in which rows are retrieved by the SELECT determines which (if any) rows are replaced. This order cannot be predicted and may differ on master and the slave.
commit;
call p_verify_status_increment(8, 8, 8, 8);
SUCCESS