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authorRohit Kalhans <rohit.kalhans@oracle.com>2011-09-29 14:47:27 +0530
committerRohit Kalhans <rohit.kalhans@oracle.com>2011-09-29 14:47:27 +0530
commit586c0c0ef6e23c4ce3c63f796187178f15e7010a (patch)
tree8e4e3ce5c98f1dc025cbdf4b892d3103536f40d0 /sql/share
parentaf400ee256fe94f6a4294041105ea83059c9c1bc (diff)
downloadmariadb-git-586c0c0ef6e23c4ce3c63f796187178f15e7010a.tar.gz
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. ****** 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. mysql-test/extra/rpl_tests/rpl_insert_duplicate.test: Test removed: Added the test to rpl.rpl_insert_ignore.test ****** Test removed: the test is redundant as the same is being tested in rpl.rpl_insert_ignore. mysql-test/extra/rpl_tests/rpl_insert_id.test: Warnings disabled for the unsafe statements. mysql-test/extra/rpl_tests/rpl_insert_ignore.test: 1. Disabled warnings while for unsafe statements 2. As INSERT...IGNORE is an unsafe statement, an insert ignore not changing any rows, will not be logged in the binary log, in the ROW and MIXED modes. It will however be logged in STATEMENT mode. mysql-test/r/commit_1innodb.result: updated result file ****** updated result file mysql-test/suite/binlog/r/binlog_stm_blackhole.result: Updated result file. mysql-test/suite/binlog/r/binlog_unsafe.result: updated result file mysql-test/suite/binlog/t/binlog_unsafe.test: added tests for the statements marked as unsafe. mysql-test/suite/rpl/r/rpl_insert_duplicate.result: File Removed :Result file of rpl_insert_duplicate, which has been removed. mysql-test/suite/rpl/r/rpl_insert_ignore.result: Added the content of rpl.rpl_insert_duplicate here. mysql-test/suite/rpl/r/rpl_insert_select.result: Result file removed as the corresponding test has beenn removed. mysql-test/suite/rpl/r/rpl_known_bugs_detection.result: Updated result file. mysql-test/suite/rpl/t/rpl_insert_duplicate.test: File Removed: this was a wrapper for rpl.rpl_insert_duplicate.test, which has been removed. mysql-test/suite/rpl/t/rpl_insert_select.test: File Removed: This test became redundant after this fix, This test showed how INSERT IGNORE...SELECT break replication, which has been handled in this fix. mysql-test/suite/rpl/t/rpl_known_bugs_detection.test: Since all the tests are statement based bugs are being tested, having mixed format forces the event to be written in row format. When the statement and causes the test to fail as certain known bugs do not occur when the even is logged in row format. sql/share/errmsg-utf8.txt: added 6 new Warning messages. ****** added 6 new Warning messages. sql/sql_lex.cc: Added 6 new error Identifier [ER_BINLOG_STMT_UNSAFEE_*] sql/sql_lex.h: Added 6 new BINLOG_STMT_UNSAFE_* enums to identify the type of unsafe statement dealt with in this bug. ****** Added 6 new BINLOG_STMT_UNSAFE_* enums to identify the type of unsafe statement dealt with in this bug. sql/sql_parse.cc: added check for specific queries and marked them as unsafe. ****** added check for specific queries and marked them as unsafe.
Diffstat (limited to 'sql/share')
-rw-r--r--sql/share/errmsg-utf8.txt18
1 files changed, 18 insertions, 0 deletions
diff --git a/sql/share/errmsg-utf8.txt b/sql/share/errmsg-utf8.txt
index c82215f41fb..da176bd5233 100644
--- a/sql/share/errmsg-utf8.txt
+++ b/sql/share/errmsg-utf8.txt
@@ -6421,6 +6421,24 @@ ER_INDEX_CORRUPT
ER_UNDO_RECORD_TOO_BIG
eng "Undo log record is too big."
+ER_BINLOG_UNSAFE_INSERT_IGNORE_SELECT
+ eng "INSERT IGNORE... SELECT is unsafe because the order in which rows are retrieved by the SELECT determines which (if any) rows are ignored. This order cannot be predicted and may differ on master and the slave."
+
+ER_BINLOG_UNSAFE_INSERT_SELECT_UPDATE
+ eng "INSERT... SELECT... ON DUPLICATE KEY UPDATE is unsafe because the order in which rows are retrieved by the SELECT determines which (if any) rows are updated. This order cannot be predicted and may differ on master and the slave."
+
+ER_BINLOG_UNSAFE_REPLACE_SELECT
+ eng "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."
+
+ER_BINLOG_UNSAFE_CREATE_IGNORE_SELECT
+ eng "CREATE... IGNORE SELECT is unsafe because the order in which rows are retrieved by the SELECT determines which (if any) rows are ignored. This order cannot be predicted and may differ on master and the slave."
+
+ER_BINLOG_UNSAFE_CREATE_REPLACE_SELECT
+ eng "CREATE... 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."
+
+ER_BINLOG_UNSAFE_UPDATE_IGNORE
+ eng "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."
+
ER_PLUGIN_NO_UNINSTALL
eng "Plugin '%s' is marked as not dynamically uninstallable. You have to stop the server to uninstall it."