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MDEV-15703: Crash in EXECUTE IMMEDIATE 'CREATE OR REPLACE TABLE t1 (a INT DEFAULT ?)' USING DEFAULT

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This patch fixes the issue with passing the DEFAULT or IGNORE values to
positional parameters for some kind of SQL statements to be executed
as prepared statements.

The main idea of the patch is to associate an actual value being passed
by the USING clause with the positional parameter represented by
the Item_param class. Such association must be performed on execution of
UPDATE statement in PS/SP mode. Other corner cases that results in
server crash is on handling CREATE TABLE when positional parameter
placed after the DEFAULT clause or CALL statement and passing either
the value DEFAULT or IGNORE as an actual value for the positional parameter.
This case is fixed by checking whether an error is set in diagnostics
area at the function pack_vcols() on return from the function pack_expression()
This commit is contained in:
Dmitry Shulga
2024-02-08 12:17:02 +07:00
committed by Oleksandr Byelkin
parent 6b2cd78695
commit e48bd474a2
16 changed files with 418 additions and 17 deletions
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4
mysql-test/main/table_value_constr.result
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@ -2594,9 +2594,9 @@ ERROR HY000: 'ignore' is not allowed in this context
VALUES (DEFAULT);
ERROR HY000: 'default' is not allowed in this context
EXECUTE IMMEDIATE 'VALUES (?)' USING IGNORE;
ERROR HY000: 'ignore' is not allowed in this context
ERROR HY000: Default/ignore value is not supported for such parameter usage
EXECUTE IMMEDIATE 'VALUES (?)' USING DEFAULT;
ERROR HY000: 'default' is not allowed in this context
ERROR HY000: Default/ignore value is not supported for such parameter usage
#
# MDEV-24675: TVC using subqueries
#