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build/lib/mysql/mysql-test/r/subselect4.result
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179
build/lib/mysql/mysql-test/r/subselect4.result
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#
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# Bug #46791: Assertion failed:(table->key_read==0),function unknown
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# function,file sql_base.cc
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#
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CREATE TABLE t1 (a INT, b INT, KEY(a));
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INSERT INTO t1 VALUES (1,1),(2,2);
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CREATE TABLE t2 LIKE t1;
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INSERT INTO t2 VALUES (1,1),(2,2);
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CREATE TABLE t3 LIKE t1;
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# should have 1 impossible where and 2 dependent subqueries
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EXPLAIN
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SELECT 1 FROM t1
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WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3))
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ORDER BY count(*);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t1 index NULL a 5 NULL 2 Using index; Using temporary
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2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
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3 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
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# should not crash the next statement
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SELECT 1 FROM t1
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WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3))
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ORDER BY count(*);
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1
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1
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# should not crash: the crash is caused by the previous statement
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SELECT 1;
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1
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1
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DROP TABLE t1,t2,t3;
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#
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# Bug #47106: Crash / segfault on adding EXPLAIN to a non-crashing
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# query
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#
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CREATE TABLE t1 (
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a INT,
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b INT,
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PRIMARY KEY (a),
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KEY b (b)
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);
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INSERT INTO t1 VALUES (1, 1), (2, 1);
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CREATE TABLE t2 LIKE t1;
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INSERT INTO t2 SELECT * FROM t1;
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CREATE TABLE t3 LIKE t1;
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INSERT INTO t3 SELECT * FROM t1;
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# Should not crash.
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# Should have 1 impossible where and 2 dependent subqs.
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EXPLAIN
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SELECT
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(SELECT 1 FROM t1,t2 WHERE t2.b > t3.b)
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FROM t3 WHERE 1 = 0 GROUP BY 1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
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2 DEPENDENT SUBQUERY t1 index NULL PRIMARY 4 NULL 2 Using index
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2 DEPENDENT SUBQUERY t2 index b b 5 NULL 2 Using where; Using index; Using join buffer
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# should return 0 rows
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SELECT
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(SELECT 1 FROM t1,t2 WHERE t2.b > t3.b)
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FROM t3 WHERE 1 = 0 GROUP BY 1;
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(SELECT 1 FROM t1,t2 WHERE t2.b > t3.b)
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DROP TABLE t1,t2,t3;
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End of 5.0 tests.
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#
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# Bug#54568: create view cause Assertion failed: 0,
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# file .\item_subselect.cc, line 836
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#
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EXPLAIN SELECT 1 LIKE ( 1 IN ( SELECT 1 ) );
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1249 Select 2 was reduced during optimization
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DESCRIBE SELECT 1 LIKE ( 1 IN ( SELECT 1 ) );
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1249 Select 2 was reduced during optimization
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# None of the below should crash
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CREATE VIEW v1 AS SELECT 1 LIKE ( 1 IN ( SELECT 1 ) );
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CREATE VIEW v2 AS SELECT 1 LIKE '%' ESCAPE ( 1 IN ( SELECT 1 ) );
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DROP VIEW v1, v2;
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#
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# Bug#51070: Query with a NOT IN subquery predicate returns a wrong
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# result set
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#
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CREATE TABLE t1 ( a INT, b INT );
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INSERT INTO t1 VALUES ( 1, NULL ), ( 2, NULL );
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CREATE TABLE t2 ( c INT, d INT );
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INSERT INTO t2 VALUES ( NULL, 3 ), ( NULL, 4 );
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CREATE TABLE t3 ( e INT, f INT );
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INSERT INTO t3 VALUES ( NULL, NULL ), ( NULL, NULL );
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CREATE TABLE t4 ( a INT );
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INSERT INTO t4 VALUES (1), (2), (3);
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CREATE TABLE t5 ( a INT );
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INSERT INTO t5 VALUES (NULL), (2);
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EXPLAIN
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT c, d FROM t2 );
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id select_type table type possible_keys key key_len ref rows Extra
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x PRIMARY x x x x x x x x
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x DEPENDENT SUBQUERY x x x x x x x x
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT c, d FROM t2 );
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a b
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EXPLAIN
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT c, d FROM t2 ) IS NULL;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
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2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT c, d FROM t2 ) IS NULL;
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a b
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1 NULL
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2 NULL
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SELECT * FROM t1 WHERE ( a, b ) IN ( SELECT c, d FROM t2 ) IS NULL;
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a b
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1 NULL
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2 NULL
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT c, d FROM t2 ) IS UNKNOWN;
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a b
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1 NULL
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2 NULL
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SELECT * FROM t1 WHERE (( a, b ) NOT IN ( SELECT c, d FROM t2 )) IS UNKNOWN;
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a b
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1 NULL
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2 NULL
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SELECT * FROM t1 WHERE 1 = 1 AND ( a, b ) NOT IN ( SELECT c, d FROM t2 );
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a b
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EXPLAIN
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT e, f FROM t3 );
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id select_type table type possible_keys key key_len ref rows Extra
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x PRIMARY x x x x x x x x
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x DEPENDENT SUBQUERY x x x x x x x x
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SELECT * FROM t1 WHERE ( a, b ) NOT IN ( SELECT e, f FROM t3 );
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a b
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EXPLAIN
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SELECT * FROM t2 WHERE ( c, d ) NOT IN ( SELECT a, b FROM t1 );
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id select_type table type possible_keys key key_len ref rows Extra
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x PRIMARY x x x x x x x x
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x DEPENDENT SUBQUERY x x x x x x x x
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SELECT * FROM t2 WHERE ( c, d ) NOT IN ( SELECT a, b FROM t1 );
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c d
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EXPLAIN
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SELECT * FROM t3 WHERE ( e, f ) NOT IN ( SELECT c, d FROM t2 );
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id select_type table type possible_keys key key_len ref rows Extra
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x PRIMARY x x x x x x x x
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x DEPENDENT SUBQUERY x x x x x x x x
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SELECT * FROM t3 WHERE ( e, f ) NOT IN ( SELECT c, d FROM t2 );
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e f
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EXPLAIN
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SELECT * FROM t2 WHERE ( c, d ) NOT IN ( SELECT e, f FROM t3 );
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id select_type table type possible_keys key key_len ref rows Extra
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x PRIMARY x x x x x x x x
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x DEPENDENT SUBQUERY x x x x x x x x
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SELECT * FROM t2 WHERE ( c, d ) NOT IN ( SELECT e, f FROM t3 );
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c d
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SELECT * FROM t1 WHERE ( a, b ) NOT IN
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( SELECT c, d FROM t2 WHERE c = 1 AND c <> 1 );
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a b
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1 NULL
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2 NULL
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SELECT * FROM t1 WHERE b NOT IN ( SELECT c FROM t2 WHERE c = 1 );
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a b
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1 NULL
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2 NULL
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SELECT * FROM t1 WHERE NULL NOT IN ( SELECT c FROM t2 WHERE c = 1 AND c <> 1 );
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a b
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1 NULL
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2 NULL
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DROP TABLE t1, t2, t3, t4, t5;
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#
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# Bug#58207: invalid memory reads when using default column value and
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# tmptable needed
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#
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CREATE TABLE t(a VARCHAR(245) DEFAULT
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'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa');
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INSERT INTO t VALUES (''),(''),(''),(''),(''),(''),(''),(''),(''),(''),('');
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SELECT * FROM (SELECT default(a) FROM t GROUP BY a) d;
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default(a)
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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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DROP TABLE t;
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#
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# End of 5.1 tests.
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#
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