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139 lines
3.4 KiB
Plaintext
139 lines
3.4 KiB
Plaintext
# ticket 895 is a query optimization problem with the primary key
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--source include/have_tokudb.inc
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SET DEFAULT_STORAGE_ENGINE = 'tokudb';
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--disable_warnings
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DROP TABLE IF EXISTS foo;
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--enable_warnings
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create table foo (a int, b int, c int, primary key (a,b));
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insert into foo values (1,10,100),(2,20,200),(3,30,300),(4,40,400),(5,50,500),(6,60,600);
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insert into foo values (1,100,100),(2,200,200),(3,300,300),(4,400,400),(5,500,500),(6,600,600);
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select * from foo;
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#HA_READ_KEY_EXACT
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a=4;
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select * from foo where a=4;
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#HA_READ_AFTER_KEY
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a>4;
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select * from foo where a>4;
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#HA_READ_BEFORE_KEY
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a<3 order by a desc;
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select * from foo where a<3 order by a desc;
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#HA_READ_KEY_OR_NEXT
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a>=4;
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select * from foo where a>=4;
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#HA_READ_KEY_OR_PREV not used anymore
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#HA_READ_PREFIX_LAST_OR_PREV
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a<=2 order by a desc;
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select * from foo where a<=2 order by a desc;
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#HA_READ_PREFIX_LAST
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a=4 order by b desc;
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select * from foo where a=4 order by b desc;
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alter table foo drop primary key;
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alter table foo add index clst_a(a,b) clustering=yes;
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#HA_READ_KEY_EXACT
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a=4;
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select * from foo where a=4;
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#HA_READ_AFTER_KEY
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a>4;
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select * from foo where a>4;
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#HA_READ_BEFORE_KEY
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a<3 order by a desc;
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select * from foo where a<3 order by a desc;
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#HA_READ_KEY_OR_NEXT
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a>=4;
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select * from foo where a>=4;
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#HA_READ_KEY_OR_PREV not used anymore
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#HA_READ_PREFIX_LAST_OR_PREV
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a<=2 order by a desc;
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select * from foo where a<=2 order by a desc;
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#HA_READ_PREFIX_LAST
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a=4 order by b desc;
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select * from foo where a=4 order by b desc;
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alter table foo drop index clst_a;
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alter table foo add index (a,b);
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#HA_READ_KEY_EXACT
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a=4;
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select * from foo where a=4;
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#HA_READ_AFTER_KEY
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a>4;
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select * from foo where a>4;
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#HA_READ_BEFORE_KEY
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a<3 order by a desc;
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select * from foo where a<3 order by a desc;
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#HA_READ_KEY_OR_NEXT
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a>=4;
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select * from foo where a>=4;
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#HA_READ_KEY_OR_PREV not used anymore
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#HA_READ_PREFIX_LAST_OR_PREV
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a<=2 order by a desc;
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select * from foo where a<=2 order by a desc;
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#HA_READ_PREFIX_LAST
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# ignore rows column
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--replace_column 9 NULL;
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explain select * from foo where a=4 order by b desc;
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select * from foo where a=4 order by b desc;
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# Final cleanup.
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DROP TABLE foo;
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