Spracherkennung für: .test vermutete Sprache: SQL {SQL[152] VDM[76] Python[64]} [Methode: maximale Elemente, drei Dimensionen]
--source include/have_innodb.inc
--echo #
--echo # MDEV-33010: Crash when pushing condition with CHARSET()/COERCIBILITY()
--echo # into derived table
--echo #
CREATE TABLE t1 (c1 BIGINT, KEY (c1)) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1);
CREATE TABLE t2 (c2 DOUBLE UNSIGNED);
INSERT INTO t2 VALUES (1);
SET optimizer_switch='derived_merge=off';
EXPLAIN EXTENDED
SELECT dt1_c1 FROM
(SELECT c1 AS dt1_c1 FROM t1) AS dt1
JOIN
(SELECT 1 AS dt2_c2 FROM t2) AS dt2
ON CHARSET(dt2_c2) BETWEEN dt1_c1 AND dt1_c1;
EXPLAIN EXTENDED
SELECT dt1_c1 FROM
(SELECT c1 AS dt1_c1 FROM t1) AS dt1
JOIN
(SELECT 1 AS dt2_c2 FROM t2) AS dt2
ON COERCIBILITY(dt2_c2) BETWEEN dt1_c1 AND dt1_c1;
SET optimizer_switch=DEFAULT;
DROP TABLE t1, t2;
--echo # End of 10.4 tests
[Dauer der Verarbeitung: 0.15 Sekunden, vorverarbeitet 2026-10-08]