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authorRohit Kalhans <rohit.kalhans@oracle.com>2012-02-09 23:28:33 +0530
committerRohit Kalhans <rohit.kalhans@oracle.com>2012-02-09 23:28:33 +0530
commit4f7e4c9d1b7ae3973e6e8224fe6591e077fc4c83 (patch)
tree2cf3659b31101ab6683a87f673fed5c805c998d4 /BUILD/compile-pentium64-gcov
parent9153fddf5880a2a2fcc1542c27ddbbc6f8c0fb9e (diff)
downloadmariadb-git-4f7e4c9d1b7ae3973e6e8224fe6591e077fc4c83.tar.gz
BUG#11758263 50440: MARK UNORDERED UPDATE WITH AUTOINC UNSAFE
Problem: Statements that write to tables with auto_increment columns based on the selection from another table, may lead to master and slave going out of sync, as the order in which the rows are retrieved from the table may differ on master and slave. Solution: We mark writing to a table with auto_increment table based on the rows selected from another table as unsafe. This will cause the execution of such statements to throw a warning and forces the statement to be logged in ROW if the logging format is mixed. Changes: 1. All the statements that writes to a table with auto_increment column(s) based on the rows fetched from another table, will now be unsafe. 2. CREATE TABLE with SELECT will now be unsafe.
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