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b11767846f
Due to complications while parsing of INSERT..SELECT statements, optimizer hints placed at the INSERT part are ignored. At the same time, hints placed at the SELECT part of INSERT..SELECT statements are fully supported.
769 lines
26 KiB
Text
769 lines
26 KiB
Text
--enable_prepare_warnings
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--disable_view_protocol # Since optimizer hints are not supported inside views
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SET NAMES utf8mb4;
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--echo # Testing that index names in hints are accent sensitive case insensitive
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CREATE TABLE t1 (a INT, ä INT, INDEX idx_a(a), INDEX idx_ä(ä));
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INSERT INTO t1 VALUES (1,1),(2,2);
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SELECT /*+ NO_MRR(t1 idx_a) */ a FROM t1;
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SELECT /*+ NO_MRR(t1 idx_A) */ a FROM t1;
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# Warnings "Unresolved table/index name..." are generated during both prepare
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# and execution stages. So disable PS protocol to avoid duplication
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--disable_ps_protocol
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SELECT /*+ NO_MRR(t1 idx_å) */ a FROM t1;
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SELECT /*+ NO_MRR(t1 idx_a, idx_å, idx_A) */ a FROM t1;
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--enable_ps_protocol
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DROP TABLE t1;
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--echo # Testing that query block names are accent sensitive case insensitive
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CREATE TABLE t1 (a INT);
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SELECT /*+ QB_NAME(a) BKA(t1@a) BKA(t1@A) */ * FROM t1;
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SELECT /*+ QB_NAME(a) BKA(t1@a) BKA(t1@å) */ * FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT, f2 INT);
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INSERT INTO t1 VALUES
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(1,1),(2,2),(3,3);
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CREATE TABLE t2(f1 INT NOT NULL, f2 INT NOT NULL, f3 CHAR(200), KEY(f1, f2));
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INSERT INTO t2 VALUES
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(1,1, 'qwerty'),(1,2, 'qwerty'),(1,3, 'qwerty'),
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(2,1, 'qwerty'),(2,2, 'qwerty'),(2,3, 'qwerty'), (2,4, 'qwerty'),(2,5, 'qwerty'),
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(3,1, 'qwerty'),(3,4, 'qwerty'),
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(4,1, 'qwerty'),(4,2, 'qwerty'),(4,3, 'qwerty'), (4,4, 'qwerty'),
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(1,1, 'qwerty'),(1,2, 'qwerty'),(1,3, 'qwerty'),
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(2,1, 'qwerty'),(2,2, 'qwerty'),(2,3, 'qwerty'), (2,4, 'qwerty'),(2,5, 'qwerty'),
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(3,1, 'qwerty'),(3,4, 'qwerty'),
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(4,1, 'qwerty'),(4,2, 'qwerty'),(4,3, 'qwerty'), (4,4, 'qwerty');
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CREATE TABLE t3 (f1 INT NOT NULL, f2 INT, f3 VARCHAR(32),
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PRIMARY KEY(f1), KEY f2_idx(f1), KEY f3_idx(f3));
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INSERT INTO t3 VALUES
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(1, 1, 'qwerty'), (2, 1, 'ytrewq'),
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(3, 2, 'uiop'), (4, 2, 'poiu'), (5, 2, 'lkjh'),
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(6, 2, 'uiop'), (7, 2, 'poiu'), (8, 2, 'lkjh'),
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(9, 2, 'uiop'), (10, 2, 'poiu'), (11, 2, 'lkjh'),
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(12, 2, 'uiop'), (13, 2, 'poiu'), (14, 2, 'lkjh');
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INSERT INTO t3 SELECT f1 + 20, f2, f3 FROM t3;
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INSERT INTO t3 SELECT f1 + 40, f2, f3 FROM t3;
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ANALYZE TABLE t1;
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ANALYZE TABLE t2;
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ANALYZE TABLE t3;
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--echo # NO_RANGE_OPTIMIZATION hint testing
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set optimizer_switch=default;
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--disable_ps2_protocol
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--disable_cursor_protocol
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--echo # Check statistics with no hint
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FLUSH STATUS;
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SELECT f1 FROM t3 WHERE f1 > 30 AND f1 < 33;
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SHOW STATUS LIKE 'handler_read%';
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--echo # Check statistics with hint
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FLUSH STATUS;
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SELECT /*+ NO_RANGE_OPTIMIZATION(t3 PRIMARY, f2_idx) */ f1 FROM t3 WHERE f1 > 30 AND f1 < 33;
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SHOW STATUS LIKE 'handler_read%';
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--enable_ps2_protocol
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--enable_cursor_protocol
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EXPLAIN EXTENDED SELECT f1 FROM t3 WHERE f1 > 30 AND f1 < 33;
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--echo # Turn off range access for PRIMARY key
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--echo # Should use range access by f2_idx key
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EXPLAIN EXTENDED SELECT /*+ NO_RANGE_OPTIMIZATION(t3 PRIMARY) */ f1
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FROM t3 WHERE f1 > 30 AND f1 < 33;
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--echo # Turn off range access for PRIMARY & f2_idx keys
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--echo # Should use index access
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EXPLAIN EXTENDED SELECT /*+ NO_RANGE_OPTIMIZATION(t3 PRIMARY, f2_idx) */ f1
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FROM t3 WHERE f1 > 30 AND f1 < 33;
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--echo # Turn off range access for all keys
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--echo # Should use index access
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EXPLAIN EXTENDED SELECT /*+ NO_RANGE_OPTIMIZATION(t3) */ f1
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FROM t3 WHERE f1 > 30 AND f1 < 33;
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--echo # Turn off range access for PRIMARY & f2_idx keys
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--echo # Should use index access
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EXPLAIN EXTENDED SELECT /*+ NO_RANGE_OPTIMIZATION(t3 PRIMARY) NO_RANGE_OPTIMIZATION(t3 f2_idx) */ f1
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FROM t3 WHERE f1 > 30 AND f1 < 33;
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--echo # Create a clone of t3 with cyrillic names
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CREATE TABLE таблица (f1 INT NOT NULL, поле2 INT, поле3 VARCHAR(32),
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PRIMARY KEY(f1), KEY f2_индекс(f1), KEY f3_индекс(поле3))
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AS SELECT * FROM t3;
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ANALYZE TABLE таблица;
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--echo # Turn off range access for PRIMARY key
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--echo # Should use range access by f2_индекс key
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EXPLAIN EXTENDED SELECT /*+ NO_RANGE_OPTIMIZATION(таблица PRIMARY) */ f1
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FROM таблица WHERE f1 > 30 AND f1 < 33;
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--echo # Turn off range access for PRIMARY & f2_индекс keys
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--echo # Should use index access
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EXPLAIN EXTENDED SELECT /*+ NO_RANGE_OPTIMIZATION(таблица PRIMARY, f2_индекс) */ f1
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FROM таблица WHERE f1 > 30 AND f1 < 33;
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--echo # Turn off range access for all keys
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--echo # Should use index access
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EXPLAIN EXTENDED SELECT /*+ NO_RANGE_OPTIMIZATION(таблица) */ f1
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FROM таблица WHERE f1 > 30 AND f1 < 33;
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--echo # Turn off range access for PRIMARY & f2_индекс keys
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--echo # Should use index access
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EXPLAIN EXTENDED
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SELECT /*+ NO_RANGE_OPTIMIZATION(таблица PRIMARY) NO_RANGE_OPTIMIZATION(таблица f2_индекс) */ f1
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FROM таблица WHERE f1 > 30 AND f1 < 33;
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DROP TABLE таблица;
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--echo # NO_ICP hint testing
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set optimizer_switch='index_condition_pushdown=on';
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CREATE TABLE t4 (x INT, y INT, KEY x_idx(x), KEY y_idx(y));
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INSERT INTO t4 (x) VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11),(12),(13);
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UPDATE t4 SET y=x;
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EXPLAIN EXTENDED SELECT * FROM
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(SELECT t4.x, t5.y FROM t4, t4 t5 WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0) AS TD;
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EXPLAIN EXTENDED SELECT * FROM
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(SELECT /*+ NO_ICP(t5 x_idx, y_idx) */ t4.x, t5.y FROM t4, t4 t5
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WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0) AS TD;
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EXPLAIN EXTENDED SELECT /*+ NO_ICP(t5@qb1 x_idx) */ * FROM
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(SELECT /*+ QB_NAME(QB1) */ t4.x, t5.y FROM t4, t4 t5
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WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0) AS TD;
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--echo # Cyrillic query block name
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EXPLAIN EXTENDED SELECT /*+ NO_ICP(t5@блок1 x_idx) */ * FROM
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(SELECT /*+ QB_NAME(блок1) */ t4.x, t5.y FROM t4, t4 t5
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WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0) AS TD;
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--echo # Expected warning for z_idx key, unresolved name.
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# Warnings "Unresolved table/index name..." are generated during both prepare
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# and execution stages. So disable PS protocol to avoid duplication
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--disable_ps_protocol
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EXPLAIN EXTENDED SELECT * FROM
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(SELECT /*+ NO_ICP(t5 y_idx, x_idx, z_idx) */ t4.x, t5.y FROM t4, t4 t5
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WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0) AS TD;
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--enable_ps_protocol
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--echo # ICP should still be used
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EXPLAIN EXTENDED SELECT * FROM
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(SELECT /*+ NO_ICP(t5 y_idx) */ t4.x, t5.y FROM t4, t4 t5
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WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0) AS TD;
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--echo # BKA & NO_BKA hint testing
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set optimizer_switch = DEFAULT;
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set optimizer_switch = 'mrr=on,mrr_cost_based=off';
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set join_cache_level = 8;
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CREATE TABLE t10(a INT);
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INSERT INTO t10 VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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CREATE TABLE t11(a INT);
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INSERT INTO t11 SELECT A.a + B.a* 10 + C.a * 100 from t10 A, t10 B, t10 C;
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CREATE TABLE t12(a INT, b INT);
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INSERT INTO t12 SELECT a,a from t10;
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CREATE TABLE t13(a INT, b INT, c INT, filler CHAR(100), key (a,b));
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INSERT INTO t13 select a,a,a, 'filler-data' FROM t11;
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--echo # Make sure BKA is expected to be used when there are no hints
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EXPLAIN
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SELECT * FROM t12, t13 WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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--echo # Disable BKA
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set optimizer_switch='join_cache_bka=off';
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EXPLAIN EXTENDED
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SELECT * FROM t12, t13 WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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--disable_ps2_protocol
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--disable_cursor_protocol
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--echo # Check statistics without hint
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FLUSH STATUS;
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SELECT * FROM t12, t13 WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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SHOW STATUS LIKE 'handler_read%';
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--echo # Check statistics with hint
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FLUSH STATUS;
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SELECT /*+ BKA() */ * FROM t12, t13 WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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SHOW STATUS LIKE 'handler_read%';
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--enable_ps2_protocol
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--enable_cursor_protocol
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EXPLAIN EXTENDED SELECT /*+ BKA(t13) */ * FROM t12, t13
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WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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EXPLAIN EXTENDED SELECT /*+ BKA() */ * FROM t12, t13
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WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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EXPLAIN EXTENDED SELECT /*+ BKA(t12, t13) */ * FROM t12, t13
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WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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EXPLAIN EXTENDED SELECT /*+ BKA(t12) */ * FROM t12, t13
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WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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EXPLAIN EXTENDED SELECT /*+ QB_NAME(QB1) BKA(t13@QB1) */ * FROM t12, t13
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WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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--echo # Hint overrides both join_cache_level and optimizer switch
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set join_cache_level = 0;
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EXPLAIN EXTENDED SELECT /*+ BKA(t12, t13) */ * FROM t12, t13
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WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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set join_cache_level = 2;
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EXPLAIN EXTENDED SELECT /*+ BKA(t12, t13) */ * FROM t12, t13
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WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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set join_cache_level = 4;
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EXPLAIN EXTENDED SELECT /*+ BKA(t12, t13) */ * FROM t12, t13
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WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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set join_cache_level = 8;
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--echo # Enable BKA
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set optimizer_switch='join_cache_bka=on';
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EXPLAIN EXTENDED SELECT /*+ NO_BKA(t13) */ * FROM t12, t13
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WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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EXPLAIN EXTENDED SELECT /*+ NO_BKA() */ * FROM t12, t13
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WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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EXPLAIN EXTENDED SELECT /*+ NO_BKA(t12, t13) */ * FROM t12, t13
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WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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EXPLAIN EXTENDED SELECT /*+ NO_BKA(t12) */ * FROM t12, t13
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WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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EXPLAIN EXTENDED SELECT /*+ QB_NAME(QB1) NO_BKA(t13@QB1) */ * FROM t12, t13
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WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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--echo # UPDATE|DELETE|INSERT|REPLACE hint testing
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EXPLAIN EXTENDED UPDATE t3
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SET f3 = 'mnbv' WHERE f1 > 30 AND f1 < 33 AND (t3.f1, t3.f2, t3.f3) IN
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(SELECT t2.f1, t2.f2, t2.f3 FROM t1,t2 WHERE t1.f1=t2.f1 AND
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t2.f2 BETWEEN t1.f1 AND t1.f2 AND t2.f2 + 1 >= t1.f1 + 1);
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--echo # Turn off range access for PRIMARY key.
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--echo # Range access should be used for f2_idx key.
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EXPLAIN EXTENDED UPDATE /*+ NO_RANGE_OPTIMIZATION(t3 PRIMARY) */ t3
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SET f3 = 'mnbv' WHERE f1 > 30 AND f1 < 33 AND (t3.f1, t3.f2, t3.f3) IN
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(SELECT /*+ BKA(t2) NO_BNL(t1) */ t2.f1, t2.f2, t2.f3 FROM t1,t2 WHERE t1.f1=t2.f1 AND
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t2.f2 BETWEEN t1.f1 AND t1.f2 AND t2.f2 + 1 >= t1.f1 + 1);
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--echo # Turn off range access for all keys.
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EXPLAIN EXTENDED UPDATE /*+ NO_RANGE_OPTIMIZATION(t3) */ t3
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SET f3 = 'mnbv' WHERE f1 > 30 AND f1 < 33 AND (t3.f1, t3.f2, t3.f3) IN
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(SELECT t2.f1, t2.f2, t2.f3 FROM t1,t2 WHERE t1.f1=t2.f1 AND
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t2.f2 BETWEEN t1.f1 AND t1.f2 AND t2.f2 + 1 >= t1.f1 + 1);
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EXPLAIN EXTENDED DELETE FROM t3
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WHERE f1 > 30 AND f1 < 33 AND (t3.f1, t3.f2, t3.f3) IN
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(SELECT /*+ QB_NAME(qb1) */ t2.f1, t2.f2, t2.f3 FROM t1,t2 WHERE t1.f1=t2.f1 AND
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t2.f2 BETWEEN t1.f1 AND t1.f2 AND t2.f2 + 1 >= t1.f1 + 1);
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--echo # Turn off range access. Range access should not be used.
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EXPLAIN EXTENDED
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DELETE /*+ NO_RANGE_OPTIMIZATION(t3 PRIMARY, f2_idx) NO_BNL(t1@QB1) */ FROM t3
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WHERE f1 > 30 AND f1 < 33 AND (t3.f1, t3.f2, t3.f3) IN
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(SELECT /*+ QB_NAME(qb1) */ t2.f1, t2.f2, t2.f3 FROM t1,t2 WHERE t1.f1=t2.f1 AND
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t2.f2 BETWEEN t1.f1 AND t1.f2 AND t2.f2 + 1 >= t1.f1 + 1);
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--echo # Make sure ICP is expected to be used when there are no hints
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EXPLAIN EXTENDED INSERT INTO t3(f1, f2, f3)
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(SELECT t4.x, t5.y, 'filler' FROM t4, t4 t5 WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0);
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--echo # Turn off ICP. ICP should not be used.
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EXPLAIN EXTENDED INSERT INTO t3(f1, f2, f3)
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(SELECT /*+ NO_ICP(t5) */t4.x, t5.y, 'filler' FROM t4, t4 t5
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WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0);
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--echo # Turn off ICP for a particular table
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EXPLAIN EXTENDED INSERT INTO t3(f1, f2, f3)
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(SELECT /*+ NO_ICP(t5) */ t4.x, t5.y, 'filler' FROM t4, t4 t5
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WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0);
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--echo # Turn off ICP for a particular table and a key
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EXPLAIN EXTENDED INSERT INTO t3(f1, f2, f3)
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(SELECT /*+ QB_NAME(qb1) NO_ICP(t5@QB1 x_idx)*/ t4.x, t5.y, 'filler' FROM t4, t4 t5
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WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0);
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--echo # Make sure ICP is expected to be used when there are no hints
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EXPLAIN EXTENDED REPLACE INTO t3(f1, f2, f3)
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(SELECT t4.x, t5.y, 'filler' FROM t4, t4 t5 WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0);
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--echo # Turn off ICP. ICP should not be used.
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EXPLAIN EXTENDED REPLACE INTO t3(f1, f2, f3)
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(SELECT /*+ NO_ICP(t5) */t4.x, t5.y, 'filler' FROM t4, t4 t5
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WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0);
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--echo # Turn off ICP for a particular table
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EXPLAIN EXTENDED REPLACE INTO t3(f1, f2, f3)
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(SELECT /*+ QB_NAME(qb1) NO_ICP(t5@QB1)*/ t4.x, t5.y, 'filler' FROM t4, t4 t5
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WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0);
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--echo # Turn off ICP for a particular table and a key
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EXPLAIN EXTENDED REPLACE INTO t3(f1, f2, f3)
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(SELECT /*+ NO_ICP(t5 x_idx) */ t4.x, t5.y, 'filler' FROM t4, t4 t5
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WHERE t4.y = 8 AND t5.x BETWEEN 7 AND t4.y+0);
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--echo # Misc tests
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--echo # Should issue warning
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EXPLAIN EXTENDED SELECT /*+ QB_NAME(qb1) QB_NAME(qb1 ) */ * FROM t2;
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--echo # Should issue warning
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EXPLAIN EXTENDED SELECT /*+ BKA(@qb1) QB_NAME(qb1) */ t2.f1, t2.f2, t2.f3 FROM t1,t2
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WHERE t1.f1=t2.f1 AND t2.f2 BETWEEN t1.f1 and t1.f2 and t2.f2 + 1 >= t1.f1 + 1;
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--echo # Should not crash
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PREPARE stmt1 FROM "SELECT /*+ BKA(t2) */ t2.f1, t2.f2, t2.f3 FROM t1,t2
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WHERE t1.f1=t2.f1 AND t2.f2 BETWEEN t1.f1 and t1.f2 and t2.f2 + 1 >= t1.f1 + 1";
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EXECUTE stmt1;
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EXECUTE stmt1;
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DEALLOCATE PREPARE stmt1;
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--echo # Check use of alias
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set optimizer_switch='join_cache_bka=off';
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EXPLAIN EXTENDED
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SELECT * FROM t12, t13 WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
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--echo # Turn on BKA for multiple tables. BKA should be used for tbl13.
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EXPLAIN EXTENDED SELECT /*+ BKA(tbl12, tbl13) */ * FROM t12 tbl12, t13 tbl13
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WHERE tbl12.a=tbl13.a AND (tbl13.b+1 <= tbl13.b+1);
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|
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--echo # Print warnings for nonexistent names
|
||
# Warnings "Unresolved table/index name..." are generated during both prepare
|
||
# and execution stages. So disable PS protocol to avoid duplication
|
||
--disable_ps_protocol
|
||
EXPLAIN EXTENDED
|
||
SELECT /*+ BKA(t2) NO_BNL(t1) BKA(t3) NO_RANGE_OPTIMIZATION(t3 idx1) NO_RANGE_OPTIMIZATION(t3) */
|
||
t2.f1, t2.f2, t2.f3 FROM t1,t2 WHERE t1.f1=t2.f1 AND
|
||
t2.f2 BETWEEN t1.f1 AND t1.f2 AND t2.f2 + 1 >= t1.f1 + 1;
|
||
--enable_ps_protocol
|
||
|
||
--echo # Check illegal syntax
|
||
EXPLAIN EXTENDED SELECT /*+ BKA(qb1 t3@qb1) */ f2 FROM
|
||
(SELECT /*+ QB_NAME(qb1) */ f2, f3, f1 FROM t3 WHERE f1 > 2 AND f3 = 'poiu') AS TD
|
||
WHERE TD.f1 > 2 AND TD.f3 = 'poiu';
|
||
|
||
--echo # Check illegal syntax
|
||
EXPLAIN EXTENDED SELECT * FROM
|
||
(SELECT /*+ QB_NAME(qb1) BKA(@qb1 t1@qb1, t2@qb1, t3) */ t2.f1, t2.f2, t2.f3 FROM t1,t2,t3) tt;
|
||
|
||
--echo # Check '@qb_name table_name' syntax
|
||
EXPLAIN EXTENDED SELECT /*+ BKA(@qb1 t13) */ * FROM (SELECT /*+ QB_NAME(QB1) */ t12.a, t13.b FROM t12, t13
|
||
WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1)) AS s1;
|
||
|
||
--echo # Check that original table name is not recognized if alias is used.
|
||
# Warnings "Unresolved table/index name..." are generated during both prepare
|
||
# and execution stages. So disable PS protocol to avoid duplication
|
||
--disable_ps_protocol
|
||
EXPLAIN EXTENDED SELECT /*+ BKA(tbl2) */ * FROM t12 tbl12, t13 tbl13
|
||
WHERE tbl12.a=tbl13.a AND (tbl13.b+1 <= tbl13.b+1);
|
||
--enable_ps_protocol
|
||
|
||
--disable_ps2_protocol
|
||
--disable_cursor_protocol
|
||
--echo # Check that PS and conventional statements give the same result.
|
||
FLUSH STATUS;
|
||
SELECT /*+ BKA(t13) */ * FROM t12, t13 WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1);
|
||
SHOW STATUS LIKE 'handler_read%';
|
||
--enable_ps2_protocol
|
||
--enable_cursor_protocol
|
||
|
||
PREPARE stmt1 FROM "SELECT /*+ BKA(t13) */ * FROM t12, t13 WHERE t12.a=t13.a AND (t13.b+1 <= t13.b+1)";
|
||
FLUSH STATUS;
|
||
EXECUTE stmt1;
|
||
SHOW STATUS LIKE 'handler_read%';
|
||
|
||
FLUSH STATUS;
|
||
EXECUTE stmt1;
|
||
SHOW STATUS LIKE 'handler_read%';
|
||
|
||
DEALLOCATE PREPARE stmt1;
|
||
|
||
DROP TABLE t1, t2, t3, t4, t10, t11, t12, t13;
|
||
|
||
--echo # MRR & NO_MRR hint testing
|
||
set optimizer_switch=default;
|
||
set join_cache_level = 8;
|
||
|
||
CREATE TABLE t1
|
||
(
|
||
f1 int NOT NULL DEFAULT '0',
|
||
f2 int NOT NULL DEFAULT '0',
|
||
f3 int NOT NULL DEFAULT '0',
|
||
INDEX idx1(f2, f3), INDEX idx2(f3)
|
||
);
|
||
|
||
INSERT INTO t1(f1) VALUES (1), (2), (3), (4), (5), (6), (7), (8);
|
||
INSERT INTO t1(f2, f3) VALUES (3,4), (3,4);
|
||
ANALYZE TABLE t1;
|
||
|
||
set optimizer_switch='mrr=on,mrr_cost_based=off';
|
||
|
||
--disable_ps2_protocol
|
||
--disable_cursor_protocol
|
||
--echo # Check statistics without hint
|
||
FLUSH STATUS;
|
||
SELECT * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
SHOW STATUS LIKE 'handler_read%';
|
||
|
||
--echo # Check statistics with hint
|
||
FLUSH STATUS;
|
||
SELECT /*+ NO_MRR(t1) */ * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
SHOW STATUS LIKE 'handler_read%';
|
||
|
||
--echo # Make sure hints are preserved in a stored procedure body
|
||
CREATE PROCEDURE p() SELECT /*+ NO_MRR(t1) */ * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
SHOW CREATE PROCEDURE p;
|
||
FLUSH STATUS;
|
||
CALL p();
|
||
SHOW STATUS LIKE 'handler_read%';
|
||
|
||
DROP PROCEDURE p;
|
||
--enable_ps2_protocol
|
||
--enable_cursor_protocol
|
||
|
||
EXPLAIN EXTENDED SELECT * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
--echo # Turn off MRR. MRR should not be used.
|
||
EXPLAIN EXTENDED SELECT /*+ NO_MRR(t1) */ * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
--echo # Turn off MRR. MRR should not be used.
|
||
EXPLAIN EXTENDED SELECT /*+ NO_MRR(t1 idx2) */ * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
--echo # Turn off MRR for unused key. MRR should be used.
|
||
EXPLAIN EXTENDED SELECT /*+ NO_MRR(t1 idx1) */ * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
|
||
set optimizer_switch='mrr=off,mrr_cost_based=off';
|
||
|
||
EXPLAIN EXTENDED SELECT * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
--echo # Turn on MRR. MRR should be used.
|
||
EXPLAIN EXTENDED SELECT /*+ MRR(t1) */ * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
--echo # Turn on MRR. MRR should be used.
|
||
EXPLAIN EXTENDED SELECT /*+ MRR(t1 IDX2) */ * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
--echo # Turn on MRR for unused key. MRR should not be used.
|
||
EXPLAIN EXTENDED SELECT /*+ MRR(t1 idx1) */ * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
|
||
set optimizer_switch='mrr=off,mrr_cost_based=on';
|
||
|
||
EXPLAIN EXTENDED SELECT * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
--echo # Turn on MRR. MRR should be used.
|
||
EXPLAIN EXTENDED SELECT /*+ MRR(t1) */ * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
--echo # Turn on MRR. MRR should be used.
|
||
EXPLAIN EXTENDED SELECT /*+ MRR(t1 idx2) */ * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
--echo # Turn on MRR for unused key. MRR should not be used.
|
||
EXPLAIN EXTENDED SELECT /*+ MRR(t1 IDX1) */ * FROM t1 WHERE f2 <= 3 AND 3 <= f3;
|
||
|
||
DROP TABLE t1;
|
||
|
||
set optimizer_switch=default;
|
||
|
||
--echo #
|
||
--echo # Duplicate hints
|
||
--echo #
|
||
|
||
CREATE TABLE t1 (i INT PRIMARY KEY);
|
||
|
||
SELECT /*+ BKA() BKA() */ 1;
|
||
SELECT /*+ BKA(t1) BKA(t1) */ * FROM t1;
|
||
SELECT /*+ QB_NAME(q1) BKA(t1@q1) BKA(t1@q1) */ * FROM t1;
|
||
SELECT /*+ QB_NAME(q1) NO_ICP(@q1 t1 PRIMARY) NO_ICP(@q1 t1 PRIMARY) */ * FROM t1;
|
||
|
||
DROP TABLE t1;
|
||
|
||
--echo #
|
||
--echo # Hints inside views are not supported
|
||
--echo #
|
||
CREATE TABLE t1 (a INT, INDEX idx_a(a));
|
||
INSERT INTO t1 VALUES (1),(2);
|
||
|
||
CREATE VIEW v1 AS SELECT /*+ NO_MRR(t1 idx_a) */ a FROM t1;
|
||
SELECT * FROM v1;
|
||
--echo # Make sure hints are not present inside the view definition:
|
||
SHOW CREATE VIEW v1;
|
||
EXPLAIN EXTENDED SELECT * FROM v1;
|
||
|
||
CREATE OR REPLACE VIEW v1 AS SELECT /*+ NO_MRR(t1 idx_a) BKA(t1)*/ a FROM t1;
|
||
SHOW CREATE VIEW v1;
|
||
|
||
ALTER VIEW v1 AS SELECT /*+ QB_NAME(q1)*/ a FROM t1;
|
||
SHOW CREATE VIEW v1;
|
||
SELECT * FROM v1;
|
||
|
||
--echo # Wrong place for the hint, must be simply ignored:
|
||
CREATE OR REPLACE VIEW v1 AS SELECT a /*+ NO_ICP(t1 idx_a)*/ FROM t1;
|
||
SHOW CREATE VIEW v1;
|
||
|
||
--echo # Incorrect hint does not prevent view creation, only a warning generated:
|
||
CREATE VIEW v2 AS SELECT /*+ BAD HINT*/ a+10 FROM t1;
|
||
SELECT * FROM v2;
|
||
EXPLAIN EXTENDED SELECT * FROM v2;
|
||
SHOW CREATE VIEW v2;
|
||
|
||
DROP VIEW v1, v2;
|
||
DROP TABLE t1;
|
||
|
||
--echo #
|
||
--echo # Tests of parser for optimizer hints
|
||
--echo #
|
||
|
||
CREATE TABLE t1 (i INT, j INT);
|
||
CREATE INDEX i1 ON t1(i);
|
||
CREATE INDEX i2 ON t1(j);
|
||
|
||
--echo
|
||
--echo # invalid hint sequences, must issue warnings:
|
||
--echo
|
||
SELECT /*+*/ 1;
|
||
SELECT /*+ */ 1;
|
||
SELECT /*+ * ** / // /* */ 1;
|
||
SELECT /*+ @ */ 1;
|
||
SELECT /*+ @foo */ 1;
|
||
SELECT /*+ foo@bar */ 1;
|
||
SELECT /*+ foo @bar */ 1;
|
||
SELECT /*+ `@` */ 1;
|
||
SELECT /*+ `@foo` */ 1;
|
||
SELECT /*+ `foo@bar` */ 1;
|
||
SELECT /*+ `foo @bar` */ 1;
|
||
SELECT /*+ BKA( @) */ 1;
|
||
SELECT /*+ BKA( @) */ 1;
|
||
SELECT /*+ BKA(t1 @) */ 1;
|
||
|
||
--echo
|
||
--echo # We don't support "*/" inside quoted identifiers (syntax error):
|
||
--echo
|
||
|
||
--error ER_PARSE_ERROR
|
||
SELECT /*+ BKA(`test*/`) */ 1;
|
||
|
||
--echo
|
||
--echo # invalid hint sequences, must issue warnings:
|
||
--echo
|
||
SELECT /*+ NO_ICP() */ 1;
|
||
SELECT /*+NO_ICP()*/ 1;
|
||
SELECT /*+ NO_ICP () */ 1;
|
||
SELECT /*+ NO_ICP ( ) */ 1;
|
||
|
||
SELECT /*+ NO_ICP() */ 1 UNION SELECT 1;
|
||
(SELECT /*+ NO_ICP() */ 1) UNION (SELECT 1);
|
||
|
||
((SELECT /* + NO_ICP() */ 1));
|
||
|
||
UPDATE /*+ NO_ICP() */ t1 SET i = 10;
|
||
INSERT /*+ NO_ICP() */ INTO t1 VALUES ();
|
||
DELETE /*+ NO_ICP() */ FROM t1 WHERE 1;
|
||
|
||
|
||
SELECT /*+ BKA(a b) */ 1 FROM t1 a, t1 b;
|
||
|
||
# Warnings "Unresolved table/index name..." are generated during both prepare
|
||
# and execution stages. So disable PS protocol to avoid duplication
|
||
--disable_ps_protocol
|
||
SELECT /*+ NO_ICP(i1) */ 1 FROM t1;
|
||
SELECT /*+ NO_ICP(i1 i2) */ 1 FROM t1;
|
||
--enable_ps_protocol
|
||
SELECT /*+ NO_ICP(@qb ident) */ 1 FROM t1;
|
||
|
||
--echo
|
||
--echo # valid hint sequences, no warnings expected:
|
||
--echo
|
||
SELECT /*+ BKA(t1) */ 1 FROM t1;
|
||
EXPLAIN EXTENDED SELECT /*+ QB_NAME(qb1) */ 1 UNION SELECT /*+ QB_NAME(qb2) */ 1;
|
||
EXPLAIN EXTENDED (SELECT /*+ QB_NAME(qb1) */ 1) UNION (SELECT /*+ QB_NAME(qb2) */ 1);
|
||
|
||
--echo #
|
||
--echo # test explainable statements for hint support:
|
||
--echo # they should warn with a hint syntax error near "test */"
|
||
--echo #
|
||
|
||
EXPLAIN EXTENDED SELECT /*+ test */ 1;
|
||
EXPLAIN EXTENDED INSERT /*+ test */ INTO t1 VALUES (10, 10);
|
||
EXPLAIN EXTENDED UPDATE /*+ test */ t1 SET i = 10 WHERE j = 10;
|
||
EXPLAIN EXTENDED DELETE /*+ test */ FROM t1 WHERE i = 10;
|
||
|
||
--echo
|
||
--echo # non-alphabetic and non-ASCII identifiers, should warn:
|
||
--echo
|
||
|
||
CREATE INDEX 3rd_index ON t1(i, j);
|
||
|
||
# Warnings "Unresolved table/index name..." are generated during both prepare
|
||
# and execution stages. So disable PS protocol to avoid duplication
|
||
--disable_ps_protocol
|
||
SELECT /*+ NO_ICP(3rd_index) */ 1 FROM t1;
|
||
|
||
CREATE INDEX $index ON t1(j, i);
|
||
SELECT /*+ NO_ICP($index) */ 1 FROM t1;
|
||
|
||
CREATE TABLE ` quoted name test` (i INT);
|
||
SELECT /*+ BKA(` quoted name test`) */ 1 FROM t1;
|
||
SELECT /*+ BKA(` quoted name test`@`select#1`) */ 1 FROM t1;
|
||
DROP TABLE ` quoted name test`;
|
||
|
||
SET SQL_MODE = 'ANSI_QUOTES';
|
||
|
||
CREATE TABLE " quoted name test" (i INT);
|
||
SELECT /*+ BKA(" quoted name test") */ 1 FROM t1;
|
||
SELECT /*+ BKA(" quoted name test"@"select#1") */ 1 FROM t1;
|
||
|
||
CREATE TABLE `test1``test2``` (i INT);
|
||
|
||
SELECT /*+ BKA(`test1``test2```) */ 1;
|
||
SELECT /*+ BKA("test1""test2""") */ 1;
|
||
|
||
SET SQL_MODE = '';
|
||
--echo # should warn:
|
||
SELECT /*+ BKA(" quoted name test") */ 1 FROM t1;
|
||
|
||
DROP TABLE ` quoted name test`;
|
||
DROP TABLE `test1``test2```;
|
||
--enable_ps_protocol
|
||
|
||
--echo # Valid hints, no warning:
|
||
EXPLAIN EXTENDED SELECT /*+ QB_NAME(`*`) */ 1;
|
||
EXPLAIN EXTENDED SELECT /*+ QB_NAME(`a*`) */ 1;
|
||
EXPLAIN EXTENDED SELECT /*+ QB_NAME(`*b`) */ 1;
|
||
EXPLAIN EXTENDED SELECT /*+ QB_NAME(`a
|
||
b`) */ 1;
|
||
|
||
--echo # Identifiers starting with digits must be supported:
|
||
CREATE OR REPLACE TABLE 0a (8a INT, KEY 6a(8a));
|
||
EXPLAIN EXTENDED SELECT /*+ NO_MRR(0a 6a) BKA(0a)*/ 8a FROM 0a;
|
||
DROP TABLE 0a;
|
||
|
||
--echo # hint syntax error: empty quoted identifier
|
||
EXPLAIN EXTENDED SELECT /*+ QB_NAME(``) */ 1;
|
||
|
||
SET NAMES utf8;
|
||
EXPLAIN EXTENDED SELECT /*+ QB_NAME(`\BF``\BF`) */ 1;
|
||
|
||
CREATE TABLE tableТ (i INT);
|
||
|
||
--echo # invalid hints, should warn:
|
||
|
||
# Warnings "Unresolved table/index name..." are generated during both prepare
|
||
# and execution stages. So disable PS protocol to avoid duplication
|
||
--disable_ps_protocol
|
||
SELECT /*+ BKA(tableТ) */ 1 FROM t1;
|
||
SELECT /*+ BKA(test@tableТ) */ 1 FROM t1;
|
||
DROP TABLE tableТ;
|
||
|
||
CREATE TABLE таблица (i INT);
|
||
|
||
SELECT /*+ BKA(`таблица`) */ 1 FROM t1;
|
||
SELECT /*+ BKA(таблица) */ 1 FROM t1;
|
||
SELECT /*+ BKA(test@таблица) */ 1 FROM t1;
|
||
|
||
SELECT /*+ NO_ICP(`\D1`) */ 1 FROM t1;
|
||
|
||
DROP TABLE таблица;
|
||
--enable_ps_protocol
|
||
|
||
--echo
|
||
--echo # derived tables and other subqueries:
|
||
--echo
|
||
|
||
SELECT * FROM (SELECT /*+ DEBUG_HINT3 */ 1) a;
|
||
SELECT (SELECT /*+ DEBUG_HINT3 */ 1);
|
||
SELECT 1 FROM DUAL WHERE 1 IN (SELECT /*+ DEBUG_HINT3 */ 1);
|
||
|
||
--echo
|
||
--echo # invalid hint sequences (should warn):
|
||
--echo
|
||
SELECT /*+ 10 */ 1;
|
||
SELECT /*+ NO_ICP() */ 1;
|
||
--disable_ps_protocol # to avoid warnings duplication, see details above
|
||
SELECT /*+ NO_ICP(10) */ 1;
|
||
--enable_ps_protocol
|
||
SELECT /*+ NO_ICP( */ 1;
|
||
SELECT /*+ NO_ICP) */ 1;
|
||
SELECT /*+ NO_ICP(t1 */ 1;
|
||
SELECT /*+ NO_ICP(t1 ( */ 1;
|
||
(SELECT 1) UNION (SELECT /*+ NO_ICP() */ 1);
|
||
|
||
INSERT INTO t1 VALUES (1, 1), (2, 2);
|
||
|
||
--echo
|
||
--echo # wrong place for hint, so recognize that stuff as a regular commentary:
|
||
--echo
|
||
|
||
SELECT 1 FROM /*+ regular commentary, not a hint! */ t1;
|
||
SELECT 1 FROM /*+ #1 */ t1 WHERE /*+ #2 */ 1 /*+ #3 */;
|
||
SELECT 1 FROM /*+ QB_NAME(q1) */ t1 /*+ NO_ICP() */WHERE /*+ NO_MRR(t1) */ 1 /*+ #3 */;
|
||
|
||
--echo # Warnings expected:
|
||
SELECT /*+ NO_ICP() */ 1
|
||
FROM /*+ regular commentary, not a hint! */ t1;
|
||
|
||
SELECT /*+ NO_ICP(t1) bad_hint */ 1 FROM t1;
|
||
|
||
SELECT /*+
|
||
NO_ICP(@qb ident)
|
||
*/ 1 FROM t1;
|
||
|
||
SELECT /*+
|
||
? bad syntax
|
||
*/ 1;
|
||
|
||
SELECT
|
||
/*+ ? bad syntax */ 1;
|
||
|
||
DROP TABLE t1;
|
||
|
||
--echo
|
||
--echo # MDEV-36486 Optimizer hints are resolved against the INSERT part of INSERT..SELECT
|
||
--echo
|
||
|
||
CREATE TABLE t1 (a INT, KEY(a));
|
||
INSERT INTO t1 VALUES (1),(2),(3);
|
||
|
||
CREATE TABLE t2 (a INT, KEY(a));
|
||
INSERT INTO t2 VALUES (1),(2),(3);
|
||
|
||
--echo # See that the range optimization is employed when there are no hints:
|
||
EXPLAIN EXTENDED
|
||
INSERT INTO t1 (a) SELECT a FROM t1 WHERE a>1 AND a<=3;
|
||
|
||
--echo # No range optimization any more:
|
||
EXPLAIN EXTENDED
|
||
INSERT INTO t1 (a) SELECT /*+ no_range_optimization (t1 a)*/ a FROM t1 WHERE a>1 AND a<=3;
|
||
|
||
--echo # Hints at the INSERT part of a INSERT..SELECT are not supported:
|
||
EXPLAIN EXTENDED
|
||
INSERT /*+ no_range_optimization (t1)*/ INTO t1 (a) SELECT a FROM t1 WHERE a>1 AND a<=3;
|
||
|
||
--echo # If hints are present at both INSERT and SELECT parts,
|
||
--echo # those at the INSERT part are ignored
|
||
EXPLAIN EXTENDED
|
||
INSERT /*+ no_range_optimization (t1)*/ INTO t1 (a) SELECT /*+ mrr(t1)*/ a
|
||
FROM t1 WHERE a>1 AND a<=3;
|
||
|
||
--echo # Table `t2` cannot be resolved since it is not present in the SELECT part
|
||
--echo # (a warning expected):
|
||
# Warnings "Unresolved table/index name..." are generated during both prepare
|
||
# and execution stages. So disable PS protocol to avoid duplication
|
||
--disable_ps_protocol
|
||
EXPLAIN EXTENDED
|
||
INSERT INTO t2 (a) SELECT /*+ no_range_optimization (t2)*/ a FROM t1 WHERE a>1 AND a<=3;
|
||
--enable_ps_protocol
|
||
|
||
DROP TABLE t1, t2;
|
||
|
||
set optimizer_switch = DEFAULT;
|
||
set join_cache_level = DEFAULT;
|
||
|
||
--echo #
|
||
--echo # MDEV-36675 Optimizer hints parser catches irrelevant `thd->is_error()`
|
||
--echo # set by multi-RENAME TABLE
|
||
--echo #
|
||
CREATE TABLE t1 (a INT);
|
||
CREATE TRIGGER t1 AFTER INSERT ON t1 FOR EACH ROW INSERT INTO t1 VALUES (0);
|
||
--error ER_NO_SUCH_TABLE
|
||
RENAME TABLE t1 TO t2, t3 TO t4;
|
||
|
||
--replace_column 7 #
|
||
SHOW CREATE TRIGGER t1;
|
||
RENAME TABLE t1 TO t2;
|
||
|
||
--replace_column 7 #
|
||
SHOW CREATE TRIGGER t1;
|
||
DROP TABLE t2;
|
||
|
||
--echo #
|
||
--echo # End of 12.0 tests
|
||
--echo #
|