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MDEV-29108 RANDOM_BYTES - assertion in Create_tmp_table::finalize

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Setting max_length to a negative value in Item_func_random_bytes::fix_length_and_dec
underflowed resulting in debug optimizer assertion.

Also set the maximium to 1024 rather than MAX_BLOB_WIDTH because
we aren't going to return more than that.
This commit is contained in:
Daniel Black
2022-07-19 14:01:17 +10:00
committed by Sergei Golubchik
parent a95268c5b3
commit 7f06f68108
3 changed files with 26 additions and 4 deletions
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12
mysql-test/main/func_str.test
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@@ -2247,6 +2247,18 @@ SELECT random_bytes('res');
--error 1690
SELECT random_bytes('test');
--echo #
--echo # MDEV-29108: RANDOM_BYTES - assertion in Create_tmp_table::finalize
--echo #
CREATE TABLE t (a INT);
INSERT INTO t VALUES (1),(2);
--error 1690
SELECT RANDOM_BYTES(-10) f1, IFNULL(a,1) f2 FROM t GROUP BY f1, f2;
# Cleanup
DROP TABLE t;
--echo #
--echo # End of 10.10 tests
--echo #