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Diffstat (limited to 'mysql-test/r/subselect4.result')
| -rw-r--r-- | mysql-test/r/subselect4.result | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/mysql-test/r/subselect4.result b/mysql-test/r/subselect4.result new file mode 100644 index 00000000000..68577cb2a4c --- /dev/null +++ b/mysql-test/r/subselect4.result @@ -0,0 +1,30 @@ +# +# Bug #46791: Assertion failed:(table->key_read==0),function unknown +# function,file sql_base.cc +# +CREATE TABLE t1 (a INT, b INT, KEY(a)); +INSERT INTO t1 VALUES (1,1),(2,2); +CREATE TABLE t2 LIKE t1; +INSERT INTO t2 VALUES (1,1),(2,2); +CREATE TABLE t3 LIKE t1; +# should have 1 impossible where and 2 dependent subqueries +EXPLAIN +SELECT 1 FROM t1 +WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3)) +ORDER BY count(*); +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 index NULL a 5 NULL 2 Using index; Using temporary +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where +3 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table +# should not crash the next statement +SELECT 1 FROM t1 +WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3)) +ORDER BY count(*); +1 +1 +# should not crash: the crash is caused by the previous statement +SELECT 1; +1 +1 +DROP TABLE t1,t2,t3; +End of 5.0 tests. |