From 28e64daf2ddccbeb754d4204219463eddd44012f Mon Sep 17 00:00:00 2001 From: Mattias Jonsson Date: Tue, 22 Dec 2009 18:59:37 +0100 Subject: Bug#49742: Partition Pruning not working correctly for RANGE Problem was when calculating the range of partitions for pruning. Solution was to get the calculation correct. I also simplified it a bit for easier understanding. mysql-test/r/partition_pruning.result: Bug#49742: Partition Pruning not working correctly for RANGE Added results. mysql-test/t/partition_pruning.test: Bug#49742: Partition Pruning not working correctly for RANGE Added tests to prevent regressions. sql/sql_partition.cc: Bug#49742: Partition Pruning not working correctly for RANGE Simplified calculation for partition id for ranges. Easier to get right and understand. Added comments. --- mysql-test/t/partition_pruning.test | 160 ++++++++++++++++++++++++++++++++++++ 1 file changed, 160 insertions(+) (limited to 'mysql-test/t/partition_pruning.test') diff --git a/mysql-test/t/partition_pruning.test b/mysql-test/t/partition_pruning.test index 11e65be45fc..315b8393d93 100644 --- a/mysql-test/t/partition_pruning.test +++ b/mysql-test/t/partition_pruning.test @@ -8,6 +8,166 @@ drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9; --enable_warnings +--echo # +--echo # Bug#49742: Partition Pruning not working correctly for RANGE +--echo # +CREATE TABLE t1 (a INT PRIMARY KEY) +PARTITION BY RANGE (a) ( +PARTITION p0 VALUES LESS THAN (1), +PARTITION p1 VALUES LESS THAN (2), +PARTITION p2 VALUES LESS THAN (3), +PARTITION p3 VALUES LESS THAN (4), +PARTITION p4 VALUES LESS THAN (5), +PARTITION p5 VALUES LESS THAN (6), +PARTITION max VALUES LESS THAN MAXVALUE); + +INSERT INTO t1 VALUES (-1),(0),(1),(2),(3),(4),(5),(6),(7),(8); + +SELECT * FROM t1 WHERE a < 1; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 1; +SELECT * FROM t1 WHERE a < 2; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 2; +SELECT * FROM t1 WHERE a < 3; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 3; +SELECT * FROM t1 WHERE a < 4; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 4; +SELECT * FROM t1 WHERE a < 5; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 5; +SELECT * FROM t1 WHERE a < 6; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 6; +SELECT * FROM t1 WHERE a < 7; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 7; +SELECT * FROM t1 WHERE a <= 1; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 1; +SELECT * FROM t1 WHERE a <= 2; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 2; +SELECT * FROM t1 WHERE a <= 3; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 3; +SELECT * FROM t1 WHERE a <= 4; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 4; +SELECT * FROM t1 WHERE a <= 5; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 5; +SELECT * FROM t1 WHERE a <= 6; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 6; +SELECT * FROM t1 WHERE a <= 7; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 7; +SELECT * FROM t1 WHERE a = 1; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 1; +SELECT * FROM t1 WHERE a = 2; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 2; +SELECT * FROM t1 WHERE a = 3; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 3; +SELECT * FROM t1 WHERE a = 4; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 4; +SELECT * FROM t1 WHERE a = 5; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 5; +SELECT * FROM t1 WHERE a = 6; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 6; +SELECT * FROM t1 WHERE a = 7; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 7; +SELECT * FROM t1 WHERE a >= 1; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 1; +SELECT * FROM t1 WHERE a >= 2; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 2; +SELECT * FROM t1 WHERE a >= 3; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 3; +SELECT * FROM t1 WHERE a >= 4; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 4; +SELECT * FROM t1 WHERE a >= 5; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 5; +SELECT * FROM t1 WHERE a >= 6; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 6; +SELECT * FROM t1 WHERE a >= 7; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 7; +SELECT * FROM t1 WHERE a > 1; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 1; +SELECT * FROM t1 WHERE a > 2; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 2; +SELECT * FROM t1 WHERE a > 3; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 3; +SELECT * FROM t1 WHERE a > 4; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 4; +SELECT * FROM t1 WHERE a > 5; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 5; +SELECT * FROM t1 WHERE a > 6; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 6; +SELECT * FROM t1 WHERE a > 7; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 7; +DROP TABLE t1; + +CREATE TABLE t1 (a INT PRIMARY KEY) +PARTITION BY RANGE (a) ( +PARTITION p0 VALUES LESS THAN (1), +PARTITION p1 VALUES LESS THAN (2), +PARTITION p2 VALUES LESS THAN (3), +PARTITION p3 VALUES LESS THAN (4), +PARTITION p4 VALUES LESS THAN (5), +PARTITION max VALUES LESS THAN MAXVALUE); + +INSERT INTO t1 VALUES (-1),(0),(1),(2),(3),(4),(5),(6),(7); + +SELECT * FROM t1 WHERE a < 1; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 1; +SELECT * FROM t1 WHERE a < 2; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 2; +SELECT * FROM t1 WHERE a < 3; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 3; +SELECT * FROM t1 WHERE a < 4; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 4; +SELECT * FROM t1 WHERE a < 5; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 5; +SELECT * FROM t1 WHERE a < 6; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 6; +SELECT * FROM t1 WHERE a <= 1; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 1; +SELECT * FROM t1 WHERE a <= 2; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 2; +SELECT * FROM t1 WHERE a <= 3; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 3; +SELECT * FROM t1 WHERE a <= 4; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 4; +SELECT * FROM t1 WHERE a <= 5; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 5; +SELECT * FROM t1 WHERE a <= 6; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 6; +SELECT * FROM t1 WHERE a = 1; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 1; +SELECT * FROM t1 WHERE a = 2; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 2; +SELECT * FROM t1 WHERE a = 3; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 3; +SELECT * FROM t1 WHERE a = 4; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 4; +SELECT * FROM t1 WHERE a = 5; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 5; +SELECT * FROM t1 WHERE a = 6; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a = 6; +SELECT * FROM t1 WHERE a >= 1; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 1; +SELECT * FROM t1 WHERE a >= 2; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 2; +SELECT * FROM t1 WHERE a >= 3; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 3; +SELECT * FROM t1 WHERE a >= 4; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 4; +SELECT * FROM t1 WHERE a >= 5; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 5; +SELECT * FROM t1 WHERE a >= 6; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a >= 6; +SELECT * FROM t1 WHERE a > 1; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 1; +SELECT * FROM t1 WHERE a > 2; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 2; +SELECT * FROM t1 WHERE a > 3; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 3; +SELECT * FROM t1 WHERE a > 4; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 4; +SELECT * FROM t1 WHERE a > 5; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 5; +SELECT * FROM t1 WHERE a > 6; +EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a > 6; +DROP TABLE t1; + # # Bug#20577: Partitions: use of to_days() function leads to selection failures # -- cgit v1.2.1