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MDEV-17894 Assertion `(thd->lex)->current_select' failed in MYSQLparse(),
query with VALUES() A table value constructor can be used in all contexts where a select can be used. In particular an ORDER BY clause or a LIMIT clause or both of them can be attached to a table value constructor to produce a new query. Unfortunately execution of such queries was not supported. This patch fixes the problem.
This commit is contained in:
Igor Babaev
@ -2183,3 +2183,324 @@ VALUES(1 + 1,2,'abc');
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SELECT * FROM (VALUES(1 + 1,2,'abc')) t;
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1 + 1 2 abc
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2 2 abc
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#
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# MDEV-17894: tvc with ORDER BY ... LIMIT
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#
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values (5), (7), (1), (3), (4) limit 2;
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5
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5
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7
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explain extended values (5), (7), (1), (3), (4) limit 2;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 values (5),(7),(1),(3),(4) limit 2
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values (5), (7), (1), (3), (4) limit 2 offset 1;
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5
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7
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1
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explain extended values (5), (7), (1), (3), (4) limit 2 offset 1;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 values (5),(7),(1),(3),(4) limit 1,2
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values (5), (7), (1), (3), (4) order by 1 limit 2;
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5
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1
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3
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explain extended values (5), (7), (1), (3), (4) order by 1 limit 2;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNIT RESULT <unit1> ALL NULL NULL NULL NULL NULL NULL Using filesort
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Warnings:
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Note 1003 values (5),(7),(1),(3),(4) order by 1 limit 2
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values (5), (7), (1), (3), (4) order by 1 limit 2 offset 1;
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5
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3
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4
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explain extended values (5), (7), (1), (3), (4) order by 1 limit 2 offset 1;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNIT RESULT <unit1> ALL NULL NULL NULL NULL NULL NULL Using filesort
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Warnings:
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Note 1003 values (5),(7),(1),(3),(4) order by 1 limit 1,2
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values (5), (7), (1), (3), (4) order by 1;
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5
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1
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3
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4
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5
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7
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explain extended values (5), (7), (1), (3), (4) order by 1;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNIT RESULT <unit1> ALL NULL NULL NULL NULL NULL NULL Using filesort
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Warnings:
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Note 1003 values (5),(7),(1),(3),(4) order by 1
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values (5,90), (7,20), (1,70), (3,50), (4,10) order by 2;
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5 90
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4 10
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7 20
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3 50
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1 70
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5 90
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explain extended values (5,90), (7,20), (1,70), (3,50), (4,10) order by 2;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNIT RESULT <unit1> ALL NULL NULL NULL NULL NULL NULL Using filesort
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Warnings:
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Note 1003 values (5,90),(7,20),(1,70),(3,50),(4,10) order by 2
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select 2 union (values (5), (7), (1), (3), (4) limit 2);
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2
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2
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5
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7
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explain extended select 2 union (values (5), (7), (1), (3), (4) limit 2);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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2 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 /* select#1 */ select 2 AS "2" union (values (5),(7),(1),(3),(4) limit 2)
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select 2 union (values (5), (7), (1), (3), (4) limit 2 offset 1);
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2
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2
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7
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1
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explain extended select 2 union (values (5), (7), (1), (3), (4) limit 2 offset 1);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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2 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 /* select#1 */ select 2 AS "2" union (values (5),(7),(1),(3),(4) limit 1,2)
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select 2 union (values (5), (7), (1), (3), (4) order by 1 limit 2);
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2
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2
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1
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3
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explain extended select 2 union (values (5), (7), (1), (3), (4) order by 1 limit 2);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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3 UNION <derived2> ALL NULL NULL NULL NULL 5 100.00 Using filesort
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2 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,3> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 /* select#1 */ select 2 AS "2" union (/* select#3 */ select "tvc_0"."5" AS "5" from (values (5),(7),(1),(3),(4)) "tvc_0" order by 1 limit 2)
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select 2 union (values (5), (7), (1), (3), (4) order by 1 limit 2 offset 1);
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2
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2
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3
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4
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explain extended select 2 union (values (5), (7), (1), (3), (4) order by 1 limit 2 offset 1);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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3 UNION <derived2> ALL NULL NULL NULL NULL 5 100.00 Using filesort
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2 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,3> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 /* select#1 */ select 2 AS "2" union (/* select#3 */ select "tvc_0"."5" AS "5" from (values (5),(7),(1),(3),(4)) "tvc_0" order by 1 limit 1,2)
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(values (5), (7), (1), (3), (4) limit 2) union select 2;
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5
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5
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7
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2
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explain extended (values (5), (7), (1), (3), (4) limit 2) union select 2;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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2 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 (values (5),(7),(1),(3),(4) limit 2) union /* select#2 */ select 2 AS "2"
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(values (5), (7), (1), (3), (4) limit 2 offset 1) union select 2;
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5
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7
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1
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2
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explain extended (values (5), (7), (1), (3), (4) limit 2 offset 1) union select 2;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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2 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 (values (5),(7),(1),(3),(4) limit 1,2) union /* select#2 */ select 2 AS "2"
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(values (5), (7), (1), (3), (4) order by 1 limit 2) union select 2;
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5
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1
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3
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2
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explain extended (values (5), (7), (1), (3), (4) order by 1 limit 2) union select 2;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SUBQUERY <derived3> ALL NULL NULL NULL NULL 5 100.00 Using filesort
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3 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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2 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 (/* select#1 */ select "tvc_0"."5" AS "5" from (values (5),(7),(1),(3),(4)) "tvc_0" order by 1 limit 2) union /* select#2 */ select 2 AS "2"
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(values (5), (7), (1), (3), (4) order by 1 limit 2 offset 1) union select 2;
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5
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3
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4
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2
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explain extended (values (5), (7), (1), (3), (4) order by 1 limit 2 offset 1) union select 2;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SUBQUERY <derived3> ALL NULL NULL NULL NULL 5 100.00 Using filesort
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3 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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2 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 (/* select#1 */ select "tvc_0"."5" AS "5" from (values (5),(7),(1),(3),(4)) "tvc_0" order by 1 limit 1,2) union /* select#2 */ select 2 AS "2"
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select 3 union all (values (5), (7), (1), (3), (4) limit 2 offset 3);
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3
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3
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3
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4
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explain extended select 3 union all (values (5), (7), (1), (3), (4) limit 2 offset 3);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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2 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 /* select#1 */ select 3 AS "3" union all (values (5),(7),(1),(3),(4) limit 3,2)
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(values (5), (7), (1), (3), (4) limit 2 offset 3) union all select 3;
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5
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3
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4
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3
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explain extended (values (5), (7), (1), (3), (4) limit 2 offset 3) union all select 3;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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2 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 (values (5),(7),(1),(3),(4) limit 3,2) union all /* select#2 */ select 3 AS "3"
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select 3 union all (values (5), (7), (1), (3), (4) order by 1 limit 2);
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3
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3
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1
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3
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explain extended select 3 union all (values (5), (7), (1), (3), (4) order by 1 limit 2);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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3 UNION <derived2> ALL NULL NULL NULL NULL 5 100.00 Using filesort
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2 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,3> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 /* select#1 */ select 3 AS "3" union all (/* select#3 */ select "tvc_0"."5" AS "5" from (values (5),(7),(1),(3),(4)) "tvc_0" order by 1 limit 2)
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(values (5), (7), (1), (3), (4) order by 1 limit 2) union all select 3;
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5
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1
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3
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3
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explain extended (values (5), (7), (1), (3), (4) order by 1 limit 2) union all select 3;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SUBQUERY <derived3> ALL NULL NULL NULL NULL 5 100.00 Using filesort
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3 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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2 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 (/* select#1 */ select "tvc_0"."5" AS "5" from (values (5),(7),(1),(3),(4)) "tvc_0" order by 1 limit 2) union all /* select#2 */ select 3 AS "3"
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( values (5), (7), (1), (3), (4) limit 2 offset 1 )
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union
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( values (5), (7), (1), (3), (4) order by 1 limit 2 );
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5
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7
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1
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3
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explain extended ( values (5), (7), (1), (3), (4) limit 2 offset 1 )
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union
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( values (5), (7), (1), (3), (4) order by 1 limit 2 );
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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3 UNION <derived2> ALL NULL NULL NULL NULL 5 100.00 Using filesort
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2 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,3> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 (values (5),(7),(1),(3),(4) limit 1,2) union (/* select#3 */ select "tvc_0"."5" AS "5" from (values (5),(7),(1),(3),(4)) "tvc_0" order by 1 limit 2)
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( values (5), (7), (1), (3), (4) limit 2 offset 1 )
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union all
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( values (5), (7), (1), (3), (4) order by 1 limit 2 );
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5
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7
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1
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1
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3
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explain extended ( values (5), (7), (1), (3), (4) limit 2 offset 1 )
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union all
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( values (5), (7), (1), (3), (4) order by 1 limit 2 );
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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3 UNION <derived2> ALL NULL NULL NULL NULL 5 100.00 Using filesort
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2 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,3> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 (values (5),(7),(1),(3),(4) limit 1,2) union all (/* select#3 */ select "tvc_0"."5" AS "5" from (values (5),(7),(1),(3),(4)) "tvc_0" order by 1 limit 2)
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(values (5), (7), (1), (3), (4) limit 2 offset 3) union all select 3 order by 1;
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5
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3
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3
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4
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explain extended (values (5), (7), (1), (3), (4) limit 2 offset 3) union all select 3 order by 1;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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2 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL Using filesort
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Warnings:
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Note 1003 (values (5),(7),(1),(3),(4) limit 3,2) union all /* select#2 */ select 3 AS "3" order by 1
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(values (5), (7), (1), (3), (4) order by 1 limit 3 offset 1) union all select 3 order by 1;
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5
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3
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3
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4
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5
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explain extended (values (5), (7), (1), (3), (4) order by 1 limit 3 offset 1) union all select 3 order by 1;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SUBQUERY <derived3> ALL NULL NULL NULL NULL 5 100.00 Using filesort
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3 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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2 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL Using filesort
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Warnings:
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Note 1003 (/* select#1 */ select "tvc_0"."5" AS "5" from (values (5),(7),(1),(3),(4)) "tvc_0" order by 1 limit 1,3) union all /* select#2 */ select 3 AS "3" order by 1
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(values (5), (7), (1), (3), (4) order by 1 limit 3 offset 1) union all select 3
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order by 1 limit 2 offset 1;
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5
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3
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4
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explain extended (values (5), (7), (1), (3), (4) order by 1 limit 3 offset 1) union all select 3
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order by 1 limit 2 offset 1;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SUBQUERY <derived3> ALL NULL NULL NULL NULL 5 100.00 Using filesort
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3 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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2 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL Using filesort
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Warnings:
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Note 1003 (/* select#1 */ select "tvc_0"."5" AS "5" from (values (5),(7),(1),(3),(4)) "tvc_0" order by 1 limit 1,3) union all /* select#2 */ select 3 AS "3" order by 1 limit 1,2
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values (5,90), (7,20), (1,70), (3,50), (4,10) order by 3;
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ERROR 42S22: Unknown column '3' in 'order clause'
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create view v1 as values (5), (7), (1), (3), (4) order by 1 limit 2;
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show create view v1;
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View Create View character_set_client collation_connection
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v1 CREATE VIEW "v1" AS values (5),(7),(1),(3),(4) order by 1 limit 2 latin1 latin1_swedish_ci
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select * from v1;
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5
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1
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3
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drop view v1;
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create view v1 as
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( values (5), (7), (1), (3), (4) limit 2 offset 1 )
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union
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( values (5), (7), (1), (3), (4) order by 1 limit 2 );
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show create view v1;
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View Create View character_set_client collation_connection
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v1 CREATE VIEW "v1" AS (values (5),(7),(1),(3),(4) limit 1,2) union (values (5),(7),(1),(3),(4) order by 1 limit 2) latin1 latin1_swedish_ci
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select * from v1;
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5
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7
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1
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3
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drop view v1;
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create view v1 as values (5,90), (7,20), (1,70), (3,50), (4,10) order by 3;
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ERROR 42S22: Unknown column '3' in 'order clause'
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create view v1 as
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( values (5), (7), (1), (3), (4) limit 2 offset 1 )
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union
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( values (5), (7), (1), (3), (4) order by 2 limit 2 );
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ERROR 42S22: Unknown column '2' in 'order clause'
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