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This allows one to run the test suite even if any of the following options are changed: - character-set-server - collation-server - join-cache-level - log-basename - max-allowed-packet - optimizer-switch - query-cache-size and query-cache-type - skip-name-resolve - table-definition-cache - table-open-cache - Some innodb options etc Changes: - Don't print out the value of system variables as one can't depend on them to being constants. - Don't set global variables to 'default' as the default may not be the same as the test was started with if there was an additional option file. Instead save original value and reset it at end of test. - Test that depends on the latin1 character set should include default_charset.inc or set the character set to latin1 - Test that depends on the original optimizer switch, should include default_optimizer_switch.inc - Test that depends on the value of a specific system variable should set it in the test (like optimizer_use_condition_selectivity) - Split subselect3.test into subselect3.test and subselect3.inc to make it easier to set and reset system variables. - Added .opt files for test that required specfic options that could be changed by external configuration files. - Fixed result files in rockdsb & tokudb that had not been updated for a while.
386 lines
21 KiB
Text
386 lines
21 KiB
Text
#
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# A simple test of the greedy query optimization algorithm and the switches that
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# control the optimizationprocess.
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#
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#
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# Schema
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#
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--disable_warnings
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drop table if exists t1,t2,t3,t4,t5,t6,t7;
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--enable_warnings
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set @save_join_cache_level=@@join_cache_level;
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set join_cache_level=1;
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create table t1 (
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c11 integer,c12 integer,c13 integer,c14 integer,c15 integer,c16 integer,
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primary key (c11)
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);
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create table t2 (
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c21 integer,c22 integer,c23 integer,c24 integer,c25 integer,c26 integer
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);
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create table t3 (
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c31 integer,c32 integer,c33 integer,c34 integer,c35 integer,c36 integer,
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primary key (c31)
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);
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create table t4 (
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c41 integer,c42 integer,c43 integer,c44 integer,c45 integer,c46 integer
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);
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create table t5 (
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c51 integer,c52 integer,c53 integer,c54 integer,c55 integer,c56 integer,
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primary key (c51)
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);
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create table t6 (
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c61 integer,c62 integer,c63 integer,c64 integer,c65 integer,c66 integer
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);
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create table t7 (
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c71 integer,c72 integer,c73 integer,c74 integer,c75 integer,c76 integer,
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primary key (c71)
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);
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#
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# Data
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# cardinality(Ti) = cardinality(T(i-1)) + 3
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#
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insert into t1 values (1,2,3,4,5,6);
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insert into t1 values (2,2,3,4,5,6);
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insert into t1 values (3,2,3,4,5,6);
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insert into t2 values (1,2,3,4,5,6);
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insert into t2 values (2,2,3,4,5,6);
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insert into t2 values (3,2,3,4,5,6);
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insert into t2 values (4,2,3,4,5,6);
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insert into t2 values (5,2,3,4,5,6);
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insert into t2 values (6,2,3,4,5,6);
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insert into t3 values (1,2,3,4,5,6);
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insert into t3 values (2,2,3,4,5,6);
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insert into t3 values (3,2,3,4,5,6);
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insert into t3 values (4,2,3,4,5,6);
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insert into t3 values (5,2,3,4,5,6);
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insert into t3 values (6,2,3,4,5,6);
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insert into t3 values (7,2,3,4,5,6);
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insert into t3 values (8,2,3,4,5,6);
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insert into t3 values (9,2,3,4,5,6);
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insert into t4 values (1,2,3,4,5,6);
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insert into t4 values (2,2,3,4,5,6);
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insert into t4 values (3,2,3,4,5,6);
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insert into t4 values (4,2,3,4,5,6);
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insert into t4 values (5,2,3,4,5,6);
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insert into t4 values (6,2,3,4,5,6);
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insert into t4 values (7,2,3,4,5,6);
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insert into t4 values (8,2,3,4,5,6);
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insert into t4 values (9,2,3,4,5,6);
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insert into t4 values (10,2,3,4,5,6);
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insert into t4 values (11,2,3,4,5,6);
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insert into t4 values (12,2,3,4,5,6);
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insert into t5 values (1,2,3,4,5,6);
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insert into t5 values (2,2,3,4,5,6);
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insert into t5 values (3,2,3,4,5,6);
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insert into t5 values (4,2,3,4,5,6);
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insert into t5 values (5,2,3,4,5,6);
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insert into t5 values (6,2,3,4,5,6);
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insert into t5 values (7,2,3,4,5,6);
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insert into t5 values (8,2,3,4,5,6);
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insert into t5 values (9,2,3,4,5,6);
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insert into t5 values (10,2,3,4,5,6);
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insert into t5 values (11,2,3,4,5,6);
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insert into t5 values (12,2,3,4,5,6);
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insert into t5 values (13,2,3,4,5,6);
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insert into t5 values (14,2,3,4,5,6);
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insert into t5 values (15,2,3,4,5,6);
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insert into t6 values (1,2,3,4,5,6);
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insert into t6 values (2,2,3,4,5,6);
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insert into t6 values (3,2,3,4,5,6);
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insert into t6 values (4,2,3,4,5,6);
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insert into t6 values (5,2,3,4,5,6);
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insert into t6 values (6,2,3,4,5,6);
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insert into t6 values (7,2,3,4,5,6);
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insert into t6 values (8,2,3,4,5,6);
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insert into t6 values (9,2,3,4,5,6);
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insert into t6 values (10,2,3,4,5,6);
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insert into t6 values (11,2,3,4,5,6);
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insert into t6 values (12,2,3,4,5,6);
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insert into t6 values (13,2,3,4,5,6);
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insert into t6 values (14,2,3,4,5,6);
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insert into t6 values (15,2,3,4,5,6);
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insert into t6 values (16,2,3,4,5,6);
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insert into t6 values (17,2,3,4,5,6);
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insert into t6 values (18,2,3,4,5,6);
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insert into t7 values (1,2,3,4,5,6);
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insert into t7 values (2,2,3,4,5,6);
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insert into t7 values (3,2,3,4,5,6);
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insert into t7 values (4,2,3,4,5,6);
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insert into t7 values (5,2,3,4,5,6);
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insert into t7 values (6,2,3,4,5,6);
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insert into t7 values (7,2,3,4,5,6);
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insert into t7 values (8,2,3,4,5,6);
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insert into t7 values (9,2,3,4,5,6);
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insert into t7 values (10,2,3,4,5,6);
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insert into t7 values (11,2,3,4,5,6);
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insert into t7 values (12,2,3,4,5,6);
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insert into t7 values (13,2,3,4,5,6);
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insert into t7 values (14,2,3,4,5,6);
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insert into t7 values (15,2,3,4,5,6);
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insert into t7 values (16,2,3,4,5,6);
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insert into t7 values (17,2,3,4,5,6);
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insert into t7 values (18,2,3,4,5,6);
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insert into t7 values (19,2,3,4,5,6);
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insert into t7 values (20,2,3,4,5,6);
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insert into t7 values (21,2,3,4,5,6);
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#
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# The actual test begins here
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#
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# This value swithes back to the old implementation of 'find_best()'
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# set optimizer_search_depth=63; - old (independent of the optimizer_prune_level)
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#
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# These are the values for the parameters that control the greedy optimizer
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# (total 6 combinations - 3 for optimizer_search_depth, 2 for optimizer_prune_level):
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# 3:
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# set optimizer_search_depth=0; - automatic
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# set optimizer_search_depth=1; - min
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# set optimizer_search_depth=62; - max (default)
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# 2:
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# set optimizer_prune_level=0 - exhaustive;
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# set optimizer_prune_level=1 - heuristic; # default
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#
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# Compile several queries with all combinations of the query
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# optimizer parameters. Each test query has two variants, where
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# in the second variant the tables in the FROM clause are in
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# inverse order to the tables in the first variant.
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# Due to pre-sorting of tables before compilation, there should
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# be no difference in the plans for each two such query variants.
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#
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# First, for reference compile the test queries with the 'old' optimization
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# procedure 'find_best'. Notice that 'find_best' does not depend on the
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# choice of heuristic.
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set optimizer_search_depth=63, optimizer_prune_level=1;
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select @@optimizer_search_depth;
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# 6-table join, chain
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explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
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show status like 'Last_query_cost';
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explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
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show status like 'Last_query_cost';
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# 6-table join, star
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explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
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show status like 'Last_query_cost';
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explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
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show status like 'Last_query_cost';
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# 6-table join, clique
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explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
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show status like 'Last_query_cost';
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explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
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show status like 'Last_query_cost';
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# Test the new optimization procedures
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set optimizer_prune_level=0;
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select @@optimizer_prune_level;
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set optimizer_search_depth=0;
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select @@optimizer_search_depth;
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# 6-table join, chain
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explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
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show status like 'Last_query_cost';
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explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
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show status like 'Last_query_cost';
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# 6-table join, star
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explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
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show status like 'Last_query_cost';
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explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
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show status like 'Last_query_cost';
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# 6-table join, clique
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explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
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show status like 'Last_query_cost';
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explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
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show status like 'Last_query_cost';
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set optimizer_search_depth=1;
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select @@optimizer_search_depth;
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# 6-table join, chain
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explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
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show status like 'Last_query_cost';
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explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
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show status like 'Last_query_cost';
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# 6-table join, star
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explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
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show status like 'Last_query_cost';
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explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
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show status like 'Last_query_cost';
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# 6-table join, clique
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explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
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show status like 'Last_query_cost';
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explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
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show status like 'Last_query_cost';
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set optimizer_search_depth=62;
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select @@optimizer_search_depth;
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# 6-table join, chain
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explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
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show status like 'Last_query_cost';
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explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
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show status like 'Last_query_cost';
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# 6-table join, star
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explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
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show status like 'Last_query_cost';
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explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
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show status like 'Last_query_cost';
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# 6-table join, clique
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explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
|
|
show status like 'Last_query_cost';
|
|
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
|
|
show status like 'Last_query_cost';
|
|
|
|
|
|
set optimizer_prune_level=1;
|
|
select @@optimizer_prune_level;
|
|
|
|
set optimizer_search_depth=0;
|
|
select @@optimizer_search_depth;
|
|
|
|
# 6-table join, chain
|
|
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
|
|
show status like 'Last_query_cost';
|
|
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
|
|
show status like 'Last_query_cost';
|
|
# 6-table join, star
|
|
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
|
|
show status like 'Last_query_cost';
|
|
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
|
|
show status like 'Last_query_cost';
|
|
# 6-table join, clique
|
|
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
|
|
show status like 'Last_query_cost';
|
|
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
|
|
show status like 'Last_query_cost';
|
|
|
|
set optimizer_search_depth=1;
|
|
select @@optimizer_search_depth;
|
|
|
|
# 6-table join, chain
|
|
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
|
|
show status like 'Last_query_cost';
|
|
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
|
|
show status like 'Last_query_cost';
|
|
# 6-table join, star
|
|
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
|
|
show status like 'Last_query_cost';
|
|
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
|
|
show status like 'Last_query_cost';
|
|
# 6-table join, clique
|
|
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
|
|
show status like 'Last_query_cost';
|
|
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
|
|
show status like 'Last_query_cost';
|
|
|
|
set optimizer_search_depth=62;
|
|
select @@optimizer_search_depth;
|
|
|
|
# 6-table join, chain
|
|
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
|
|
show status like 'Last_query_cost';
|
|
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
|
|
show status like 'Last_query_cost';
|
|
# 6-table join, star
|
|
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
|
|
show status like 'Last_query_cost';
|
|
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
|
|
show status like 'Last_query_cost';
|
|
# 6-table join, clique
|
|
explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
|
|
show status like 'Last_query_cost';
|
|
explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
|
|
show status like 'Last_query_cost';
|
|
|
|
drop table t1,t2,t3,t4,t5,t6,t7;
|
|
|
|
|
|
#
|
|
# Bug # 38795: Automatic search depth and nested join's results in server
|
|
# crash
|
|
#
|
|
|
|
CREATE TABLE t1 (a int, b int, d int, i int); INSERT INTO t1 VALUES (1,1,1,1);
|
|
CREATE TABLE t2 (b int, c int, j int); INSERT INTO t2 VALUES (1,1,1);
|
|
CREATE TABLE t2_1 (j int); INSERT INTO t2_1 VALUES (1);
|
|
CREATE TABLE t3 (c int, f int); INSERT INTO t3 VALUES (1,1);
|
|
CREATE TABLE t3_1 (f int); INSERT INTO t3_1 VALUES (1);
|
|
CREATE TABLE t4 (d int, e int, k int); INSERT INTO t4 VALUES (1,1,1);
|
|
CREATE TABLE t4_1 (k int); INSERT INTO t4_1 VALUES (1);
|
|
CREATE TABLE t5 (g int, d int, h int, l int); INSERT INTO t5 VALUES (1,1,1,1);
|
|
CREATE TABLE t5_1 (l int); INSERT INTO t5_1 VALUES (1);
|
|
|
|
SET optimizer_search_depth = 3;
|
|
|
|
SELECT 1
|
|
FROM t1
|
|
LEFT JOIN (
|
|
t2 JOIN t3 ON t3.c = t2.c
|
|
) ON t2.b = t1.b
|
|
LEFT JOIN (
|
|
t4 JOIN t5 ON t5.d = t4.d
|
|
) ON t4.d = t1.d
|
|
;
|
|
|
|
SELECT 1
|
|
FROM t1
|
|
LEFT JOIN (
|
|
t2 LEFT JOIN (t3 JOIN t3_1 ON t3.f = t3_1.f) ON t3.c = t2.c
|
|
) ON t2.b = t1.b
|
|
LEFT JOIN (
|
|
t4 JOIN t5 ON t5.d = t4.d
|
|
) ON t4.d = t1.d
|
|
;
|
|
|
|
SELECT 1
|
|
FROM t1
|
|
LEFT JOIN (
|
|
(t2 JOIN t2_1 ON t2.j = t2_1.j) JOIN t3 ON t3.c = t2.c
|
|
) ON t2.b = t1.b
|
|
LEFT JOIN (
|
|
t4 JOIN t5 ON t5.d = t4.d
|
|
) ON t4.d = t1.d
|
|
;
|
|
|
|
SELECT 1
|
|
FROM t1
|
|
LEFT JOIN (
|
|
t2 JOIN t3 ON t3.c = t2.c
|
|
) ON t2.b = t1.b
|
|
LEFT JOIN (
|
|
(t4 JOIN t4_1 ON t4.k = t4_1.k) LEFT JOIN t5 ON t5.d = t4.d
|
|
) ON t4.d = t1.d
|
|
;
|
|
|
|
SELECT 1
|
|
FROM t1
|
|
LEFT JOIN (
|
|
t2 JOIN t3 ON t3.c = t2.c
|
|
) ON t2.b = t1.b
|
|
LEFT JOIN (
|
|
t4 LEFT JOIN (t5 JOIN t5_1 ON t5.l = t5_1.l) ON t5.d = t4.d
|
|
) ON t4.d = t1.d
|
|
;
|
|
|
|
SET optimizer_search_depth = DEFAULT;
|
|
DROP TABLE t1,t2,t2_1,t3,t3_1,t4,t4_1,t5,t5_1;
|
|
|
|
--echo End of 5.0 tests
|
|
|
|
set join_cache_level=@save_join_cache_level;
|