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MDEV-23445: LIMIT ROWS EXAMINED throws error in Debug build only

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Analysis: When we reach the maximum limit to examine rows killed_state is set
as ABORT. But this isn't an actual error and we still return TRUE. This
eventually sets error as UNKNOWN ERROR.
Fix: Check if need to stop execution by checking the killed state. If we have
to abort it, return false because this isn't an actual error.
This commit is contained in:
Rucha Deodhar
2020-10-08 23:05:35 +05:30
parent 311b7f94e6
commit 00bf48827f
2 changed files with 5 additions and 7 deletions
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7
mysql-test/main/information_schema.test
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@ -1932,14 +1932,7 @@ SELECT SCHEMA_NAME from information_schema.schemata where schema_name=REPEAT('a'
--echo # Diagnostics_area::sql_errno upon query from I_S with LIMIT ROWS EXAMINED
--echo #
if ($have_debug) {
--error ER_UNKNOWN_ERROR
SELECT * FROM INFORMATION_SCHEMA.`COLUMNS` LIMIT ROWS EXAMINED 10;
SHOW WARNINGS;
}
if (!$have_debug) {
SELECT * FROM INFORMATION_SCHEMA.`COLUMNS` LIMIT ROWS EXAMINED 10;
}
--echo #
--echo # End of 10.2 Test