659 lines
10 KiB
Plaintext
659 lines
10 KiB
Plaintext
CREATE TABLE t1(a INTEGER);
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INSERT INTO t1 VALUES(11),(12),(13),(14),(15),(16),(17),(18),(19);
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ANALYZE TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status OK
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CREATE TABLE t2(a INTEGER);
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INSERT INTO t2 VALUES(21),(22),(23),(24),(25),(26),(27);
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SELECT * FROM t1 LIMIT 6;
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a
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11
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12
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13
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14
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15
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SELECT * FROM t1 LIMIT 5 OFFSET 1;
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a
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12
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14
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15
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EXPLAIN FORMAT=TREE SELECT * FROM t1 LIMIT 5 OFFSET 1;
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EXPLAIN
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-> Limit/Offset: 5/1 row(s)
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-> Table scan on t1 (cost=1.15 rows=9)
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(SELECT * FROM t1 LIMIT 7) ORDER BY a DESC LIMIT 4;
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a
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17
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16
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15
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14
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(SELECT * FROM t1 LIMIT 7 OFFSET 1) ORDER BY a DESC LIMIT 4 OFFSET 2;
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a
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16
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15
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14
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13
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 7) ORDER BY a LIMIT 4;
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a
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13
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14
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15
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 7 OFFSET 1) ORDER BY a LIMIT 4 OFFSET 2;
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a
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14
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15
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16
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SELECT * FROM t1 UNION SELECT * FROM t2 LIMIT 5;
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a
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11
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12
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13
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14
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SELECT * FROM t1 UNION SELECT * FROM t2 LIMIT 5 OFFSET 6;
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a
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18
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21
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SELECT * FROM t1 UNION SELECT * FROM t2 ORDER BY a LIMIT 5;
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a
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11
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12
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13
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14
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SELECT * FROM t1 UNION SELECT * FROM t2 ORDER BY a LIMIT 5 OFFSET 6;
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a
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17
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18
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19
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21
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SELECT * FROM t1 UNION ALL SELECT * FROM t2 LIMIT 5;
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a
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11
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12
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13
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14
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SELECT * FROM t1 UNION ALL SELECT * FROM t2 LIMIT 5 OFFSET 6;
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a
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17
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18
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19
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21
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SELECT * FROM t1 UNION ALL SELECT * FROM t2 ORDER BY a LIMIT 5;
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a
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11
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12
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13
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14
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SELECT * FROM t1 UNION ALL SELECT * FROM t2 ORDER BY a LIMIT 5 OFFSET 6;
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a
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17
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18
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19
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21
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(SELECT * FROM t1 LIMIT 5) UNION
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SELECT * FROM t2
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LIMIT 8;
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a
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11
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12
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13
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14
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15
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21
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22
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(SELECT * FROM t1 LIMIT 5 OFFSET 4) UNION
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SELECT * FROM t2
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LIMIT 8 OFFSET 1;
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a
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16
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17
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18
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19
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21
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23
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5) UNION
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SELECT * FROM t2
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LIMIT 8;
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a
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19
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18
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17
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21
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5 OFFSET 4) UNION
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SELECT * FROM t2
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LIMIT 8 OFFSET 1;
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a
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14
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13
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12
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11
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21
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22
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23
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24
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(SELECT * FROM t1 LIMIT 5) UNION
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SELECT * FROM t2
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ORDER BY a LIMIT 8;
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a
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11
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12
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13
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14
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15
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21
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22
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(SELECT * FROM t1 LIMIT 5 OFFSET 4) UNION
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SELECT * FROM t2
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ORDER BY a LIMIT 8 OFFSET 1;
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a
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16
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17
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18
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19
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21
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23
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5) UNION
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SELECT * FROM t2
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ORDER BY a LIMIT 8;
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a
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15
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16
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17
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18
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19
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21
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5 OFFSET 4) UNION
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SELECT * FROM t2
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ORDER BY a LIMIT 8 OFFSET 1;
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a
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12
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13
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14
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15
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21
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22
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23
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(SELECT * FROM t1 LIMIT 5) UNION ALL
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SELECT * FROM t2
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LIMIT 8;
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a
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11
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12
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13
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14
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15
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21
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22
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23
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(SELECT * FROM t1 LIMIT 5 OFFSET 4) UNION ALL
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SELECT * FROM t2
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LIMIT 8 OFFSET 1;
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a
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16
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17
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18
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19
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21
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22
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23
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24
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5) UNION ALL
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SELECT * FROM t2
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LIMIT 8;
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a
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19
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18
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17
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16
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15
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21
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22
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23
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5 OFFSET 4) UNION ALL
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SELECT * FROM t2
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LIMIT 8 OFFSET 1;
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a
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14
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13
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12
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11
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21
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22
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23
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24
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(SELECT * FROM t1 LIMIT 5) UNION ALL
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SELECT * FROM t2
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ORDER BY a LIMIT 8;
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a
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11
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12
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13
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14
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15
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21
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22
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23
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(SELECT * FROM t1 LIMIT 5 OFFSET 4) UNION ALL
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SELECT * FROM t2
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ORDER BY a LIMIT 8 OFFSET 1;
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a
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16
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17
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18
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19
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21
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22
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23
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24
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5) UNION ALL
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SELECT * FROM t2
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ORDER BY a LIMIT 8;
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a
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15
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16
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17
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18
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19
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21
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22
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23
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5 OFFSET 4) UNION ALL
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SELECT * FROM t2
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ORDER BY a LIMIT 8 OFFSET 1;
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a
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12
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13
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14
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15
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21
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22
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23
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24
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(SELECT * FROM t1 LIMIT 5) UNION
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(SELECT * FROM t2 LIMIT 4)
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LIMIT 7;
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a
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11
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12
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13
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14
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15
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21
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22
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(SELECT * FROM t1 LIMIT 5 OFFSET 4) UNION
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(SELECT * FROM t2 LIMIT 4 OFFSET 2)
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LIMIT 7 OFFSET 1;
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a
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16
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17
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18
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19
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23
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24
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25
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5) UNION
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(SELECT * FROM t2 ORDER BY a DESC LIMIT 4)
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LIMIT 7;
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a
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19
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18
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17
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16
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15
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27
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26
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5 OFFSET 4) UNION
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(SELECT * FROM t2 ORDER BY a DESC LIMIT 4 OFFSET 2)
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LIMIT 7 OFFSET 1;
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a
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14
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13
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12
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11
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25
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24
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(SELECT * FROM t1 LIMIT 5) UNION
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(SELECT * FROM t2 LIMIT 4)
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ORDER BY a LIMIT 7;
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a
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11
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12
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13
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14
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15
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21
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(SELECT * FROM t1 LIMIT 5 OFFSET 4) UNION
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(SELECT * FROM t2 LIMIT 4 OFFSET 2)
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ORDER BY a LIMIT 7 OFFSET 1;
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a
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16
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17
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18
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19
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23
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24
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25
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5) UNION
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(SELECT * FROM t2 ORDER BY a DESC LIMIT 4)
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ORDER BY a LIMIT 7;
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a
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15
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16
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17
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18
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19
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24
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5 OFFSET 4) UNION
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(SELECT * FROM t2 ORDER BY a DESC LIMIT 4 OFFSET 2)
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ORDER BY a LIMIT 7 OFFSET 1;
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a
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12
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13
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14
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15
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22
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23
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(SELECT * FROM t1 LIMIT 5) UNION ALL
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(SELECT * FROM t2 LIMIT 4)
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LIMIT 7;
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a
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11
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12
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13
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14
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15
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21
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(SELECT * FROM t1 LIMIT 5 OFFSET 4) UNION ALL
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(SELECT * FROM t2 LIMIT 4 OFFSET 2)
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LIMIT 7 OFFSET 1;
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a
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16
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17
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18
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23
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24
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5) UNION ALL
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(SELECT * FROM t2 ORDER BY a DESC LIMIT 4)
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LIMIT 7;
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a
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19
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18
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17
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15
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27
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5 OFFSET 4) UNION ALL
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(SELECT * FROM t2 ORDER BY a DESC LIMIT 4 OFFSET 2)
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LIMIT 7 OFFSET 1;
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a
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14
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13
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11
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25
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24
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(SELECT * FROM t1 LIMIT 5) UNION ALL
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(SELECT * FROM t2 LIMIT 4)
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ORDER BY a LIMIT 7;
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a
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11
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12
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13
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14
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15
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21
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(SELECT * FROM t1 LIMIT 5 OFFSET 4) UNION ALL
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(SELECT * FROM t2 LIMIT 4 OFFSET 2)
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ORDER BY a LIMIT 7 OFFSET 1;
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a
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16
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17
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18
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19
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23
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24
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25
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5) UNION ALL
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(SELECT * FROM t2 ORDER BY a DESC LIMIT 4)
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ORDER BY a LIMIT 7;
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a
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15
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16
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17
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18
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19
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24
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25
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(SELECT * FROM t1 ORDER BY a DESC LIMIT 5 OFFSET 4) UNION ALL
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(SELECT * FROM t2 ORDER BY a DESC LIMIT 4 OFFSET 2)
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ORDER BY a LIMIT 7 OFFSET 1;
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a
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12
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13
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14
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15
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23
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DROP TABLE t1, t2;
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create table t1 (a int not null default 0 primary key, b int not null default 0);
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insert into t1 () values ();
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insert into t1 values (1,1),(2,1),(3,1);
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update t1 set a=4 where b=1 limit 1;
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select * from t1;
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a b
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0 0
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2 1
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3 1
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4 1
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update t1 set b=2 where b=1 limit 2;
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select * from t1;
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a b
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0 0
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2 2
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3 2
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4 1
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update t1 set b=4 where b=1;
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select * from t1;
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a b
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0 0
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2 2
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3 2
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4 4
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delete from t1 where b=2 limit 1;
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select * from t1;
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a b
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0 0
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3 2
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4 4
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delete from t1 limit 1;
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select * from t1;
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a b
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3 2
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4 4
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drop table t1;
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create table t1 (i int);
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insert into t1 (i) values(1),(1),(1);
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delete from t1 limit 1;
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update t1 set i=2 limit 1;
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delete from t1 limit 0;
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update t1 set i=3 limit 0;
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select * from t1;
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i
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2
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1
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drop table t1;
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select 0 limit 0;
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0
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CREATE TABLE t1(id int auto_increment primary key, id2 int, index(id2));
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INSERT INTO t1 (id2) values (0),(0),(0);
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DELETE FROM t1 WHERE id=1;
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INSERT INTO t1 SET id2=0;
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SELECT * FROM t1;
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id id2
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2 0
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3 0
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4 0
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DELETE FROM t1 WHERE id2 = 0 ORDER BY id LIMIT 1;
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SELECT * FROM t1;
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id id2
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3 0
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4 0
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DELETE FROM t1 WHERE id2 = 0 ORDER BY id desc LIMIT 1;
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SELECT * FROM t1;
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id id2
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3 0
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DROP TABLE t1;
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create table t1 (a integer);
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insert into t1 values (1);
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select 1 as a from t1 union all select 1 from dual limit 1;
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a
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1
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(select 1 as a from t1) union all (select 1 from dual) limit 1;
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a
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1
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drop table t1;
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create table t1 (a int);
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insert into t1 values (1),(2),(3),(4),(5),(6),(7);
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analyze table t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status OK
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explain select count(*) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 7 33.33 Using where
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Warnings:
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Note 1003 /* select#1 */ select count(0) AS `c` from `test`.`t1` where (`test`.`t1`.`a` > 0) limit 3
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select count(*) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
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c
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7
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explain select sum(a) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 7 33.33 Using where
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Warnings:
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Note 1003 /* select#1 */ select sum(`test`.`t1`.`a`) AS `c` from `test`.`t1` where (`test`.`t1`.`a` > 0) limit 3
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select sum(a) c FROM t1 WHERE a > 0 ORDER BY c LIMIT 3;
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c
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28
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drop table t1;
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prepare s from "select 1 limit ?";
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set @a='qwe';
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execute s using @a;
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1
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set @a=-1;
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execute s using @a;
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ERROR HY000: Incorrect arguments to EXECUTE
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prepare s from "select 1 limit 1, ?";
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execute s using @a;
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ERROR HY000: Incorrect arguments to EXECUTE
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prepare s from "select 1 limit ?, ?";
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execute s using @a, @a;
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ERROR HY000: Incorrect arguments to EXECUTE
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set @a=14632475938453979136;
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execute s using @a, @a;
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1
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set @a=-14632475938453979136;
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execute s using @a, @a;
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ERROR HY000: Incorrect arguments to EXECUTE
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End of 5.0 tests
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select 1 as a limit 4294967296,10;
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a
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End of 5.1 tests
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# Bug #28961843: COUNT() WITH LIMIT AND OFFSET RETURNS WRONG RESULT
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CREATE TABLE t1 (i INT);
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INSERT INTO t1 VALUES (1);
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SELECT COUNT(*) FROM t1 LIMIT 1 OFFSET 3;
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COUNT(*)
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DROP TABLE t1;
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#
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# Bug #29148115: SIG 6 IN TEMPTABLE::RESULT TEMPTABLE::HANDLER::INDEX_NEXT_CONDITIONAL
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#
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CREATE TABLE t1 (pk INTEGER PRIMARY KEY);
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INSERT INTO t1 VALUES (1);
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SELECT t1.pk FROM (SELECT DISTINCT * FROM t1) AS t1 WHERE t1.pk=1 LIMIT 1 OFFSET 2;
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pk
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DROP TABLE t1;
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#
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# Bug #29373972: SIG 6 AT HANDLER::START_PSI_BATCH_MODE()
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#
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set @old_opt_switch=@@optimizer_switch;
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set optimizer_switch='block_nested_loop=off';
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CREATE TABLE t1 ( pk INTEGER );
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INSERT INTO t1 VALUES (1), (2);
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EXPLAIN FORMAT=tree SELECT JSON_OBJECTAGG(NULL, '') FROM t1, t1 AS t2 GROUP BY t1.pk LIMIT 2 OFFSET 5;
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EXPLAIN
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-> Limit/Offset: 2/5 row(s)
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-> Group aggregate: json_objectagg(NULL,'')
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-> Nested loop inner join (cost=1.35 rows=4)
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-> Sort: t1.pk (cost=0.45 rows=2)
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-> Table scan on t1
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-> Table scan on t2 (cost=0.35 rows=2)
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SELECT JSON_OBJECTAGG(NULL, '') FROM t1, t1 AS t2 GROUP BY t1.pk LIMIT 2 OFFSET 5;
|
|
ERROR 22032: JSON documents may not contain NULL member names.
|
|
FLUSH TABLES;
|
|
DROP TABLE t1;
|
|
set optimizer_switch=@old_opt_switch;
|
|
#
|
|
# Bug#29531472: SIG 6 AT JOIN::TEST_SKIP_SORT | SQL_OPTIMIZER.CC
|
|
#
|
|
CREATE TABLE t1 (
|
|
col_int_key INT DEFAULT NULL,
|
|
col_varchar_key VARCHAR(1) DEFAULT NULL,
|
|
KEY idx_CC_col_int_key (col_int_key),
|
|
KEY idx_CC_col_varchar_key (col_varchar_key)
|
|
);
|
|
INSERT INTO t1 VALUES(1,'A');
|
|
SELECT col_varchar_key AS f1
|
|
FROM t1
|
|
WHERE (col_int_key NOT BETWEEN 10 AND 15 OR col_varchar_key < '2') AND col_int_key IS NULL
|
|
GROUP BY f1 LIMIT 100;
|
|
f1
|
|
EXPLAIN
|
|
SELECT col_varchar_key AS f1
|
|
FROM t1
|
|
WHERE (col_int_key NOT BETWEEN 10 AND 15 OR col_varchar_key < '2') AND col_int_key IS NULL
|
|
GROUP BY f1 LIMIT 100;
|
|
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
|
|
1 SIMPLE t1 NULL index idx_CC_col_int_key,idx_CC_col_varchar_key idx_CC_col_varchar_key 7 NULL 1 100.00 Using where
|
|
Warnings:
|
|
Note 1003 /* select#1 */ select `test`.`t1`.`col_varchar_key` AS `f1` from `test`.`t1` where (((`test`.`t1`.`col_int_key` not between 10 and 15) or (`test`.`t1`.`col_varchar_key` < '2')) and (`test`.`t1`.`col_int_key` is null)) group by `f1` limit 100
|
|
DROP TABLE t1;
|