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Automerge.

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This commit is contained in:
Alexey Kopytov
2009-07-12 20:56:43 +06:00
parent 8b2788478b 2b26729ece
commit 5398b3ef2b
5 changed files with 52 additions and 8 deletions
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14
mysql-test/r/merge.result
View File

@ -2127,4 +2127,18 @@ SELECT * FROM m1;
ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
DROP VIEW v1;
DROP TABLE m1, t1;
#
# Bug #45796: invalid memory reads and writes when altering merge and
# base tables
#
CREATE TABLE t1(c1 INT) ENGINE=MyISAM;
CREATE TABLE m1(c1 INT) ENGINE=MERGE UNION=(t1);
ALTER TABLE m1 ADD INDEX idx_c1(c1);
SELECT * FROM m1;
ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
ALTER TABLE t1 ADD INDEX idx_c1(c1);
SELECT * FROM m1;
c1
DROP TABLE m1;
DROP TABLE t1;
End of 5.1 tests

20
mysql-test/t/merge.test
View File

@ -1535,4 +1535,24 @@ SELECT * FROM m1;
DROP VIEW v1;
DROP TABLE m1, t1;
--echo #
--echo # Bug #45796: invalid memory reads and writes when altering merge and
--echo # base tables
--echo #
CREATE TABLE t1(c1 INT) ENGINE=MyISAM;
CREATE TABLE m1(c1 INT) ENGINE=MERGE UNION=(t1);
ALTER TABLE m1 ADD INDEX idx_c1(c1);
# Open the MERGE table and allocate buffers based on children's definition.
--error ER_WRONG_MRG_TABLE
SELECT * FROM m1;
# Change the child table definition.
ALTER TABLE t1 ADD INDEX idx_c1(c1);
# Check that old buffers are not reused
SELECT * FROM m1;
DROP TABLE m1;
DROP TABLE t1;
--echo End of 5.1 tests