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24881437b7
This should not have caused any notable errors in most cases. After fix, we are not using keys to solve MIN/MAX if the string used for comparision is longer thant the column-
1613 lines
69 KiB
Text
1613 lines
69 KiB
Text
#
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# Test file for WL#1724 (Min/Max Optimization for Queries with Group By Clause).
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# The queries in this file test query execution via QUICK_GROUP_MIN_MAX_SELECT.
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#
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#
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# TODO:
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# Add queries with:
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# - C != const
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# - C IS NOT NULL
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# - HAVING clause
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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create table t1 (
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a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(248) default ' '
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);
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insert into t1 (a1, a2, b, c, d) values
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('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
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('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
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('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
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('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
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('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
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('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
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('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
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('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
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('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
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('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
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('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
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('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'),
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('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'),
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('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'),
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('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'),
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('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'),
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('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
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('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
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('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
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('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
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('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
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('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
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('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
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('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
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('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
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('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
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('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
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('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'),
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('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'),
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('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'),
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('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'),
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('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4');
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create index idx_t1_0 on t1 (a1);
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create index idx_t1_1 on t1 (a1,a2,b,c);
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create index idx_t1_2 on t1 (a1,a2,b);
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analyze table t1;
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# t2 is the same as t1, but with some NULLs in the MIN/MAX column, and
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# one more nullable attribute
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--disable_warnings
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drop table if exists t2;
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--enable_warnings
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create table t2 (
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a1 char(64), a2 char(64) not null, b char(16), c char(16), d char(16), dummy char(248) default ' '
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);
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insert into t2 select * from t1;
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# add few rows with NULL's in the MIN/MAX column
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insert into t2 (a1, a2, b, c, d) values
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('a','a',NULL,'a777','xyz'),('a','a',NULL,'a888','xyz'),('a','a',NULL,'a999','xyz'),
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('a','a','a',NULL,'xyz'),
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('a','a','b',NULL,'xyz'),
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('a','b','a',NULL,'xyz'),
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('c','a',NULL,'c777','xyz'),('c','a',NULL,'c888','xyz'),('c','a',NULL,'c999','xyz'),
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('d','b','b',NULL,'xyz'),
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('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),
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('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),
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('a','a',NULL,'a777','xyz'),('a','a',NULL,'a888','xyz'),('a','a',NULL,'a999','xyz'),
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('a','a','a',NULL,'xyz'),
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('a','a','b',NULL,'xyz'),
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('a','b','a',NULL,'xyz'),
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('c','a',NULL,'c777','xyz'),('c','a',NULL,'c888','xyz'),('c','a',NULL,'c999','xyz'),
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('d','b','b',NULL,'xyz'),
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('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),('e','a','a',NULL,'xyz'),
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('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz'),('e','a','b',NULL,'xyz');
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create index idx_t2_0 on t2 (a1);
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create index idx_t2_1 on t2 (a1,a2,b,c);
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create index idx_t2_2 on t2 (a1,a2,b);
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analyze table t2;
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# Table t3 is the same as t1, but with smaller column lenghts.
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# This allows to test different branches of the cost computation procedure
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# when the number of keys per block are less than the number of keys in the
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# sub-groups formed by predicates over non-group attributes.
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--disable_warnings
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drop table if exists t3;
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--enable_warnings
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create table t3 (
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a1 char(1), a2 char(1), b char(1), c char(4) not null, d char(3), dummy char(1) default ' '
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);
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insert into t3 (a1, a2, b, c, d) values
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('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
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('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
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('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
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('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
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('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
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('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
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('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
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('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
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('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
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('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
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('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
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('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4');
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insert into t3 (a1, a2, b, c, d) values
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('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
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('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
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('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
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('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
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('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
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('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
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('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
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('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
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('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
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('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
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('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
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('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4');
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insert into t3 (a1, a2, b, c, d) values
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('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
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('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
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('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
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('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
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('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
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('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
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('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
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('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
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('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
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('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
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('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
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('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4');
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insert into t3 (a1, a2, b, c, d) values
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('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
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('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'),
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('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'),
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('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'),
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('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'),
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('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'),
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('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'),
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('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'),
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('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'),
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('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'),
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('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'),
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('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4');
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create index idx_t3_0 on t3 (a1);
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create index idx_t3_1 on t3 (a1,a2,b,c);
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create index idx_t3_2 on t3 (a1,a2,b);
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analyze table t3;
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#
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# Queries without a WHERE clause. These queries do not use ranges.
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#
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# plans
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explain select a1, min(a2) from t1 group by a1;
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explain select a1, max(a2) from t1 group by a1;
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explain select a1, min(a2), max(a2) from t1 group by a1;
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explain select a1, a2, b, min(c), max(c) from t1 group by a1,a2,b;
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explain select a1,a2,b,max(c),min(c) from t1 group by a1,a2,b;
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--replace_column 7 # 9 #
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explain select a1,a2,b,max(c),min(c) from t2 group by a1,a2,b;
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# Select fields in different order
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explain select min(a2), a1, max(a2), min(a2), a1 from t1 group by a1;
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explain select a1, b, min(c), a1, max(c), b, a2, max(c), max(c) from t1 group by a1, a2, b;
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explain select min(a2) from t1 group by a1;
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explain select a2, min(c), max(c) from t1 group by a1,a2,b;
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# queries
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select a1, min(a2) from t1 group by a1;
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select a1, max(a2) from t1 group by a1;
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select a1, min(a2), max(a2) from t1 group by a1;
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select a1, a2, b, min(c), max(c) from t1 group by a1,a2,b;
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select a1,a2,b,max(c),min(c) from t1 group by a1,a2,b;
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select a1,a2,b,max(c),min(c) from t2 group by a1,a2,b;
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# Select fields in different order
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select min(a2), a1, max(a2), min(a2), a1 from t1 group by a1;
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select a1, b, min(c), a1, max(c), b, a2, max(c), max(c) from t1 group by a1, a2, b;
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select min(a2) from t1 group by a1;
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select a2, min(c), max(c) from t1 group by a1,a2,b;
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#
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# Queries with a where clause
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#
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# A) Preds only over the group 'A' attributes
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# plans
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explain select a1,a2,b,min(c),max(c) from t1 where a1 < 'd' group by a1,a2,b;
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explain select a1,a2,b,min(c),max(c) from t1 where a1 >= 'b' group by a1,a2,b;
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explain select a1,a2,b, max(c) from t1 where a1 >= 'c' or a1 < 'b' group by a1,a2,b;
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explain select a1, max(c) from t1 where a1 >= 'c' or a1 < 'b' group by a1,a2,b;
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explain select a1,a2,b,min(c),max(c) from t1 where a1 >= 'c' or a2 < 'b' group by a1,a2,b;
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explain select a1,a2,b, max(c) from t1 where a1 = 'z' or a1 = 'b' or a1 = 'd' group by a1,a2,b;
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explain select a1,a2,b,min(c),max(c) from t1 where a1 = 'z' or a1 = 'b' or a1 = 'd' group by a1,a2,b;
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explain select a1,a2,b, max(c) from t1 where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') group by a1,a2,b;
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explain select a1,a2,b,min(c),max(c) from t1 where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') group by a1,a2,b;
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explain select a1,min(c),max(c) from t1 where a1 >= 'b' group by a1,a2,b;
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explain select a1, max(c) from t1 where a1 in ('a','b','d') group by a1,a2,b;
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--replace_column 9 #
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explain select a1,a2,b, max(c) from t2 where a1 < 'd' group by a1,a2,b;
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--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where a1 < 'd' group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where a1 >= 'b' group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b, max(c) from t2 where a1 >= 'c' or a1 < 'b' group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1, max(c) from t2 where a1 >= 'c' or a1 < 'b' group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where a1 >= 'c' or a2 < 'b' group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b, max(c) from t2 where a1 = 'z' or a1 = 'b' or a1 = 'd' group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where a1 = 'z' or a1 = 'b' or a1 = 'd' group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b, max(c) from t2 where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,min(c),max(c) from t2 where a1 >= 'b' group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1, max(c) from t2 where a1 in ('a','b','d') group by a1,a2,b;
|
|
|
|
# queries
|
|
select a1,a2,b,min(c),max(c) from t1 where a1 < 'd' group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where a1 >= 'b' group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t1 where a1 >= 'c' or a1 < 'b' group by a1,a2,b;
|
|
select a1, max(c) from t1 where a1 >= 'c' or a1 < 'b' group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where a1 >= 'c' or a2 < 'b' group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t1 where a1 = 'z' or a1 = 'b' or a1 = 'd' group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where a1 = 'z' or a1 = 'b' or a1 = 'd' group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t1 where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') group by a1,a2,b;
|
|
select a1,min(c),max(c) from t1 where a1 >= 'b' group by a1,a2,b;
|
|
select a1, max(c) from t1 where a1 in ('a','b','d') group by a1,a2,b;
|
|
|
|
select a1,a2,b, max(c) from t2 where a1 < 'd' group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where a1 < 'd' group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where a1 >= 'b' group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t2 where a1 >= 'c' or a1 < 'b' group by a1,a2,b;
|
|
select a1, max(c) from t2 where a1 >= 'c' or a1 < 'b' group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where a1 >= 'c' or a2 < 'b' group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t2 where a1 = 'z' or a1 = 'b' or a1 = 'd' group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where a1 = 'z' or a1 = 'b' or a1 = 'd' group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t2 where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') group by a1,a2,b;
|
|
select a1,min(c),max(c) from t2 where a1 >= 'b' group by a1,a2,b;
|
|
select a1, max(c) from t2 where a1 in ('a','b','d') group by a1,a2,b;
|
|
|
|
# B) Equalities only over the non-group 'B' attributes
|
|
# plans
|
|
explain select a1,a2,b,max(c),min(c) from t1 where (a2 = 'a') and (b = 'b') group by a1;
|
|
explain select a1,max(c),min(c) from t1 where (a2 = 'a') and (b = 'b') group by a1;
|
|
explain select a1,a2,b, max(c) from t1 where (b = 'b') group by a1,a2;
|
|
explain select a1,a2,b,min(c),max(c) from t1 where (b = 'b') group by a1,a2;
|
|
explain select a1,a2, max(c) from t1 where (b = 'b') group by a1,a2;
|
|
|
|
explain select a1,a2,b,max(c),min(c) from t2 where (a2 = 'a') and (b = 'b') group by a1;
|
|
explain select a1,max(c),min(c) from t2 where (a2 = 'a') and (b = 'b') group by a1;
|
|
explain select a1,a2,b, max(c) from t2 where (b = 'b') group by a1,a2;
|
|
explain select a1,a2,b,min(c),max(c) from t2 where (b = 'b') group by a1,a2;
|
|
explain select a1,a2, max(c) from t2 where (b = 'b') group by a1,a2;
|
|
|
|
# these queries test case 2) in TRP_GROUP_MIN_MAX::update_cost()
|
|
explain select a1,a2,b,max(c),min(c) from t3 where (a2 = 'a') and (b = 'b') group by a1;
|
|
explain select a1,max(c),min(c) from t3 where (a2 = 'a') and (b = 'b') group by a1;
|
|
|
|
# queries
|
|
select a1,a2,b,max(c),min(c) from t1 where (a2 = 'a') and (b = 'b') group by a1;
|
|
select a1,max(c),min(c) from t1 where (a2 = 'a') and (b = 'b') group by a1;
|
|
select a1,a2,b, max(c) from t1 where (b = 'b') group by a1,a2;
|
|
select a1,a2,b,min(c),max(c) from t1 where (b = 'b') group by a1,a2;
|
|
select a1,a2, max(c) from t1 where (b = 'b') group by a1,a2;
|
|
|
|
select a1,a2,b,max(c),min(c) from t2 where (a2 = 'a') and (b = 'b') group by a1;
|
|
select a1,max(c),min(c) from t2 where (a2 = 'a') and (b = 'b') group by a1;
|
|
select a1,a2,b, max(c) from t2 where (b = 'b') group by a1,a2;
|
|
select a1,a2,b,min(c),max(c) from t2 where (b = 'b') group by a1,a2;
|
|
select a1,a2, max(c) from t2 where (b = 'b') group by a1,a2;
|
|
|
|
# these queries test case 2) in TRP_GROUP_MIN_MAX::update_cost()
|
|
select a1,a2,b,max(c),min(c) from t3 where (a2 = 'a') and (b = 'b') group by a1;
|
|
select a1,max(c),min(c) from t3 where (a2 = 'a') and (b = 'b') group by a1;
|
|
|
|
|
|
# IS NULL (makes sense for t2 only)
|
|
# plans
|
|
explain select a1,a2,b,min(c) from t2 where (a2 = 'a') and b is NULL group by a1;
|
|
explain select a1,a2,b,max(c) from t2 where (a2 = 'a') and b is NULL group by a1;
|
|
explain select a1,a2,b,min(c) from t2 where b is NULL group by a1,a2;
|
|
explain select a1,a2,b,max(c) from t2 where b is NULL group by a1,a2;
|
|
explain select a1,a2,b,min(c),max(c) from t2 where b is NULL group by a1,a2;
|
|
explain select a1,a2,b,min(c),max(c) from t2 where b is NULL group by a1,a2;
|
|
# queries
|
|
select a1,a2,b,min(c) from t2 where (a2 = 'a') and b is NULL group by a1;
|
|
select a1,a2,b,max(c) from t2 where (a2 = 'a') and b is NULL group by a1;
|
|
select a1,a2,b,min(c) from t2 where b is NULL group by a1,a2;
|
|
select a1,a2,b,max(c) from t2 where b is NULL group by a1,a2;
|
|
select a1,a2,b,min(c),max(c) from t2 where b is NULL group by a1,a2;
|
|
select a1,a2,b,min(c),max(c) from t2 where b is NULL group by a1,a2;
|
|
|
|
# C) Range predicates for the MIN/MAX attribute
|
|
# plans
|
|
--replace_column 9 #
|
|
explain select a1,a2,b, max(c) from t1 where (c > 'b1') group by a1,a2,b;
|
|
explain select a1,a2,b,min(c),max(c) from t1 where (c > 'b1') group by a1,a2,b;
|
|
explain select a1,a2,b, max(c) from t1 where (c > 'f123') group by a1,a2,b;
|
|
explain select a1,a2,b,min(c),max(c) from t1 where (c > 'f123') group by a1,a2,b;
|
|
explain select a1,a2,b, max(c) from t1 where (c < 'a0') group by a1,a2,b;
|
|
explain select a1,a2,b,min(c),max(c) from t1 where (c < 'a0') group by a1,a2,b;
|
|
explain select a1,a2,b, max(c) from t1 where (c < 'k321') group by a1,a2,b;
|
|
explain select a1,a2,b,min(c),max(c) from t1 where (c < 'k321') group by a1,a2,b;
|
|
explain select a1,a2,b, max(c) from t1 where (c < 'a0') or (c > 'b1') group by a1,a2,b;
|
|
explain select a1,a2,b,min(c),max(c) from t1 where (c < 'a0') or (c > 'b1') group by a1,a2,b;
|
|
explain select a1,a2,b, max(c) from t1 where (c > 'b1') or (c <= 'g1') group by a1,a2,b;
|
|
explain select a1,a2,b,min(c),max(c) from t1 where (c > 'b1') or (c <= 'g1') group by a1,a2,b;
|
|
explain select a1,a2,b,min(c),max(c) from t1 where (c > 'b111') and (c <= 'g112') group by a1,a2,b;
|
|
explain select a1,a2,b,min(c),max(c) from t1 where (c < 'c5') or (c = 'g412') or (c = 'k421') group by a1,a2,b;
|
|
explain select a1,a2,b,min(c),max(c) from t1 where ((c > 'b111') and (c <= 'g112')) or ((c > 'd000') and (c <= 'i110')) group by a1,a2,b;
|
|
explain select a1,a2,b,min(c),max(c) from t1 where (c between 'b111' and 'g112') or (c between 'd000' and 'i110') group by a1,a2,b;
|
|
|
|
--replace_column 9 #
|
|
explain select a1,a2,b, max(c) from t2 where (c > 'b1') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where (c > 'b1') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b, max(c) from t2 where (c > 'f123') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where (c > 'f123') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b, max(c) from t2 where (c < 'a0') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where (c < 'a0') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b, max(c) from t2 where (c < 'k321') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where (c < 'k321') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b, max(c) from t2 where (c < 'a0') or (c > 'b1') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where (c < 'a0') or (c > 'b1') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b, max(c) from t2 where (c > 'b1') or (c <= 'g1') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where (c > 'b1') or (c <= 'g1') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where (c > 'b111') and (c <= 'g112') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where (c < 'c5') or (c = 'g412') or (c = 'k421') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where ((c > 'b111') and (c <= 'g112')) or ((c > 'd000') and (c <= 'i110')) group by a1,a2,b;
|
|
|
|
# queries
|
|
select a1,a2,b, max(c) from t1 where (c > 'b1') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where (c > 'b1') group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t1 where (c > 'f123') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where (c > 'f123') group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t1 where (c < 'a0') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where (c < 'a0') group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t1 where (c < 'k321') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where (c < 'k321') group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t1 where (c < 'a0') or (c > 'b1') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where (c < 'a0') or (c > 'b1') group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t1 where (c > 'b1') or (c <= 'g1') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where (c > 'b1') or (c <= 'g1') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where (c > 'b111') and (c <= 'g112') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where (c < 'c5') or (c = 'g412') or (c = 'k421') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where ((c > 'b111') and (c <= 'g112')) or ((c > 'd000') and (c <= 'i110')) group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where (c between 'b111' and 'g112') or (c between 'd000' and 'i110') group by a1,a2,b;
|
|
|
|
select a1,a2,b, max(c) from t2 where (c > 'b1') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where (c > 'b1') group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t2 where (c > 'f123') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where (c > 'f123') group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t2 where (c < 'a0') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where (c < 'a0') group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t2 where (c < 'k321') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where (c < 'k321') group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t2 where (c < 'a0') or (c > 'b1') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where (c < 'a0') or (c > 'b1') group by a1,a2,b;
|
|
select a1,a2,b, max(c) from t2 where (c > 'b1') or (c <= 'g1') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where (c > 'b1') or (c <= 'g1') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where (c > 'b111') and (c <= 'g112') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where (c < 'c5') or (c = 'g412') or (c = 'k421') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where ((c > 'b111') and (c <= 'g112')) or ((c > 'd000') and (c <= 'i110')) group by a1,a2,b;
|
|
|
|
# analyze the sub-select
|
|
explain select a1,a2,b,min(c),max(c) from t1
|
|
where exists ( select * from t2 where t2.c = t1.c )
|
|
group by a1,a2,b;
|
|
|
|
select a1,a2,b,min(c),max(c) from t1
|
|
where exists ( select * from t2 where t2.c = t1.c )
|
|
group by a1,a2,b;
|
|
|
|
# the sub-select is unrelated to MIN/MAX
|
|
explain select a1,a2,b,min(c),max(c) from t1
|
|
where exists ( select * from t2 where t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
|
|
select a1,a2,b,min(c),max(c) from t1
|
|
where exists ( select * from t2 where t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
|
|
# correlated subselect that doesn't reference the min/max argument
|
|
explain select a1,a2,b,c,min(c), max(c) from t1
|
|
where exists ( select * from t2 where t1.b > 'a' and t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
|
|
select a1,a2,b,c,min(c), max(c) from t1
|
|
where exists ( select * from t2 where t1.b > 'a' and t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
|
|
SET @save_optimizer_switch=@@optimizer_switch;
|
|
SET optimizer_switch='semijoin_with_cache=off';
|
|
explain select a1,a2,b,c,min(c), max(c) from t1
|
|
where exists ( select * from t2
|
|
where t2.c in (select c from t3 where t3.c > t1.b) and
|
|
t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
|
|
select a1,a2,b,c,min(c), max(c) from t1
|
|
where exists ( select * from t2
|
|
where t2.c in (select c from t3 where t3.c > t1.b) and
|
|
t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
SET optimizer_switch=@save_optimizer_switch;
|
|
|
|
# correlated subselect that references the min/max argument
|
|
explain select a1,a2,b,c,min(c), max(c) from t1
|
|
where exists ( select * from t2 where t1.c > 'a' and t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
|
|
select a1,a2,b,c,min(c), max(c) from t1
|
|
where exists ( select * from t2 where t1.c > 'a' and t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
|
|
SET @save_optimizer_switch=@@optimizer_switch;
|
|
SET optimizer_switch='semijoin_with_cache=off';
|
|
explain select a1,a2,b,c,min(c), max(c) from t1
|
|
where exists ( select * from t2
|
|
where t2.c in (select c from t3 where t3.c > t1.c) and
|
|
t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
|
|
select a1,a2,b,c,min(c), max(c) from t1
|
|
where exists ( select * from t2
|
|
where t2.c in (select c from t3 where t3.c > t1.c) and
|
|
t2.c > 'b1' )
|
|
group by a1,a2,b;
|
|
SET optimizer_switch=@save_optimizer_switch;
|
|
|
|
|
|
# A,B,C) Predicates referencing mixed classes of attributes
|
|
# plans
|
|
explain select a1,a2,b,min(c),max(c) from t1 where (a1 >= 'c' or a2 < 'b') and (b > 'a') group by a1,a2,b;
|
|
explain select a1,a2,b,min(c),max(c) from t1 where (a1 >= 'c' or a2 < 'b') and (c > 'b111') group by a1,a2,b;
|
|
explain select a1,a2,b,min(c),max(c) from t1 where (a2 >= 'b') and (b = 'a') and (c > 'b111') group by a1,a2,b;
|
|
explain select a1,a2,b,min(c) from t1 where ((a1 > 'a') or (a1 < '9')) and ((a2 >= 'b') and (a2 < 'z')) and (b = 'a') and ((c < 'h112') or (c = 'j121') or (c > 'k121' and c < 'm122') or (c > 'o122')) group by a1,a2,b;
|
|
explain select a1,a2,b,min(c) from t1 where ((a1 > 'a') or (a1 < '9')) and ((a2 >= 'b') and (a2 < 'z')) and (b = 'a') and ((c = 'j121') or (c > 'k121' and c < 'm122') or (c > 'o122') or (c < 'h112') or (c = 'c111')) group by a1,a2,b;
|
|
explain select a1,a2,b,min(c) from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
|
explain select a1,a2,b,min(c) from t1 where (ord(a1) > 97) and (ord(a2) + ord(a1) > 194) and (b = 'c') group by a1,a2,b;
|
|
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where (a1 >= 'c' or a2 < 'b') and (b > 'a') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where (a1 >= 'c' or a2 < 'b') and (c > 'b111') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c),max(c) from t2 where (a2 >= 'b') and (b = 'a') and (c > 'b111') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c) from t2 where ((a1 > 'a') or (a1 < '9')) and ((a2 >= 'b') and (a2 < 'z')) and (b = 'a') and ((c < 'h112') or (c = 'j121') or (c > 'k121' and c < 'm122') or (c > 'o122')) group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c) from t2 where ((a1 > 'a') or (a1 < '9')) and ((a2 >= 'b') and (a2 < 'z')) and (b = 'a') and ((c = 'j121') or (c > 'k121' and c < 'm122') or (c > 'o122') or (c < 'h112') or (c = 'c111')) group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,min(c) from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
|
|
|
# queries
|
|
select a1,a2,b,min(c),max(c) from t1 where (a1 >= 'c' or a2 < 'b') and (b > 'a') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where (a1 >= 'c' or a2 < 'b') and (c > 'b111') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t1 where (a2 >= 'b') and (b = 'a') and (c > 'b111') group by a1,a2,b;
|
|
select a1,a2,b,min(c) from t1 where ((a1 > 'a') or (a1 < '9')) and ((a2 >= 'b') and (a2 < 'z')) and (b = 'a') and ((c < 'h112') or (c = 'j121') or (c > 'k121' and c < 'm122') or (c > 'o122')) group by a1,a2,b;
|
|
select a1,a2,b,min(c) from t1 where ((a1 > 'a') or (a1 < '9')) and ((a2 >= 'b') and (a2 < 'z')) and (b = 'a') and ((c = 'j121') or (c > 'k121' and c < 'm122') or (c > 'o122') or (c < 'h112') or (c = 'c111')) group by a1,a2,b;
|
|
select a1,a2,b,min(c) from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
|
select a1,a2,b,min(c) from t1 where (ord(a1) > 97) and (ord(a2) + ord(a1) > 194) and (b = 'c') group by a1,a2,b;
|
|
|
|
select a1,a2,b,min(c),max(c) from t2 where (a1 >= 'c' or a2 < 'b') and (b > 'a') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where (a1 >= 'c' or a2 < 'b') and (c > 'b111') group by a1,a2,b;
|
|
select a1,a2,b,min(c),max(c) from t2 where (a2 >= 'b') and (b = 'a') and (c > 'b111') group by a1,a2,b;
|
|
select a1,a2,b,min(c) from t2 where ((a1 > 'a') or (a1 < '9')) and ((a2 >= 'b') and (a2 < 'z')) and (b = 'a') and ((c < 'h112') or (c = 'j121') or (c > 'k121' and c < 'm122') or (c > 'o122')) group by a1,a2,b;
|
|
select a1,a2,b,min(c) from t2 where ((a1 > 'a') or (a1 < '9')) and ((a2 >= 'b') and (a2 < 'z')) and (b = 'a') and ((c = 'j121') or (c > 'k121' and c < 'm122') or (c > 'o122') or (c < 'h112') or (c = 'c111')) group by a1,a2,b;
|
|
select a1,a2,b,min(c) from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
|
|
|
|
|
#
|
|
# GROUP BY queries without MIN/MAX
|
|
#
|
|
|
|
# plans
|
|
explain select a1,a2,b from t1 where (a1 >= 'c' or a2 < 'b') and (b > 'a') group by a1,a2,b;
|
|
explain select a1,a2,b from t1 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
|
explain select a1,a2,b,c from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121') group by a1,a2,b;
|
|
explain select a1,a2,b from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
|
|
|
--replace_column 9 #
|
|
explain select a1,a2,b from t2 where (a1 >= 'c' or a2 < 'b') and (b > 'a') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b from t2 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b,c from t2 where (a2 >= 'b') and (b = 'a') and (c = 'i121') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select a1,a2,b from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
|
|
|
# queries
|
|
select a1,a2,b from t1 where (a1 >= 'c' or a2 < 'b') and (b > 'a') group by a1,a2,b;
|
|
select a1,a2,b from t1 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
|
select a1,a2,b,c from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121') group by a1,a2,b;
|
|
select a1,a2,b from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
|
|
|
select a1,a2,b from t2 where (a1 >= 'c' or a2 < 'b') and (b > 'a') group by a1,a2,b;
|
|
select a1,a2,b from t2 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
|
select a1,a2,b,c from t2 where (a2 >= 'b') and (b = 'a') and (c = 'i121') group by a1,a2,b;
|
|
select a1,a2,b from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
|
|
|
#
|
|
# DISTINCT queries
|
|
#
|
|
|
|
# plans
|
|
explain select distinct a1,a2,b from t1;
|
|
explain select distinct a1,a2,b from t1 where (a2 >= 'b') and (b = 'a');
|
|
explain extended select distinct a1,a2,b,c from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
|
|
explain select distinct a1,a2,b from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
|
|
explain select distinct b from t1 where (a2 >= 'b') and (b = 'a');
|
|
|
|
--replace_column 9 #
|
|
explain select distinct a1,a2,b from t2;
|
|
--replace_column 9 #
|
|
explain select distinct a1,a2,b from t2 where (a2 >= 'b') and (b = 'a');
|
|
explain extended select distinct a1,a2,b,c from t2 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
|
|
--replace_column 9 #
|
|
explain select distinct a1,a2,b from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
|
|
explain select distinct b from t2 where (a2 >= 'b') and (b = 'a');
|
|
|
|
# queries
|
|
select distinct a1,a2,b from t1;
|
|
select distinct a1,a2,b from t1 where (a2 >= 'b') and (b = 'a');
|
|
select distinct a1,a2,b,c from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
|
|
select distinct a1,a2,b from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
|
|
select distinct b from t1 where (a2 >= 'b') and (b = 'a');
|
|
|
|
select distinct a1,a2,b from t2;
|
|
select distinct a1,a2,b from t2 where (a2 >= 'b') and (b = 'a');
|
|
select distinct a1,a2,b,c from t2 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
|
|
select distinct a1,a2,b from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
|
|
select distinct b from t2 where (a2 >= 'b') and (b = 'a');
|
|
|
|
# BUG #6303
|
|
select distinct t_00.a1
|
|
from t1 t_00
|
|
where exists ( select * from t2 where a1 = t_00.a1 );
|
|
|
|
# BUG #8532 - SELECT DISTINCT a, a causes server to crash
|
|
select distinct a1,a1 from t1;
|
|
select distinct a2,a1,a2,a1 from t1;
|
|
select distinct t1.a1,t2.a1 from t1,t2;
|
|
|
|
|
|
#
|
|
# DISTINCT queries with GROUP-BY
|
|
#
|
|
|
|
# plans
|
|
explain select distinct a1,a2,b from t1;
|
|
explain select distinct a1,a2,b from t1 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
|
explain select distinct a1,a2,b,c from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121') group by a1,a2,b;
|
|
explain select distinct a1,a2,b from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
|
explain select distinct b from t1 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
|
|
|
--replace_column 9 #
|
|
explain select distinct a1,a2,b from t2;
|
|
--replace_column 9 #
|
|
explain select distinct a1,a2,b from t2 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select distinct a1,a2,b,c from t2 where (a2 >= 'b') and (b = 'a') and (c = 'i121') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select distinct a1,a2,b from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
|
--replace_column 9 #
|
|
explain select distinct b from t2 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
|
|
|
# queries
|
|
select distinct a1,a2,b from t1;
|
|
select distinct a1,a2,b from t1 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
|
select distinct a1,a2,b,c from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121') group by a1,a2,b;
|
|
select distinct a1,a2,b from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
|
select distinct b from t1 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
|
|
|
select distinct a1,a2,b from t2;
|
|
select distinct a1,a2,b from t2 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
|
select distinct a1,a2,b,c from t2 where (a2 >= 'b') and (b = 'a') and (c = 'i121') group by a1,a2,b;
|
|
select distinct a1,a2,b from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c') group by a1,a2,b;
|
|
select distinct b from t2 where (a2 >= 'b') and (b = 'a') group by a1,a2,b;
|
|
|
|
|
|
#
|
|
# COUNT (DISTINCT cols) queries
|
|
#
|
|
|
|
explain select count(distinct a1,a2,b) from t1 where (a2 >= 'b') and (b = 'a');
|
|
explain select count(distinct a1,a2,b,c) from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
|
|
explain extended select count(distinct a1,a2,b) from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
|
|
explain select count(distinct b) from t1 where (a2 >= 'b') and (b = 'a');
|
|
explain extended select 98 + count(distinct a1,a2,b) from t1 where (a1 > 'a') and (a2 > 'a');
|
|
|
|
select count(distinct a1,a2,b) from t1 where (a2 >= 'b') and (b = 'a');
|
|
select count(distinct a1,a2,b,c) from t1 where (a2 >= 'b') and (b = 'a') and (c = 'i121');
|
|
select count(distinct a1,a2,b) from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c');
|
|
select count(distinct b) from t1 where (a2 >= 'b') and (b = 'a');
|
|
select 98 + count(distinct a1,a2,b) from t1 where (a1 > 'a') and (a2 > 'a');
|
|
|
|
#
|
|
# Queries with expressions in the select clause
|
|
#
|
|
|
|
explain select a1,a2,b, concat(min(c), max(c)) from t1 where a1 < 'd' group by a1,a2,b;
|
|
explain select concat(a1,min(c)),b from t1 where a1 < 'd' group by a1,a2,b;
|
|
explain select concat(a1,min(c)),b,max(c) from t1 where a1 < 'd' group by a1,a2,b;
|
|
explain select concat(a1,a2),b,min(c),max(c) from t1 where a1 < 'd' group by a1,a2,b;
|
|
explain select concat(ord(min(b)),ord(max(b))),min(b),max(b) from t1 group by a1,a2;
|
|
|
|
select a1,a2,b, concat(min(c), max(c)) from t1 where a1 < 'd' group by a1,a2,b;
|
|
select concat(a1,min(c)),b from t1 where a1 < 'd' group by a1,a2,b;
|
|
select concat(a1,min(c)),b,max(c) from t1 where a1 < 'd' group by a1,a2,b;
|
|
select concat(a1,a2),b,min(c),max(c) from t1 where a1 < 'd' group by a1,a2,b;
|
|
select concat(ord(min(b)),ord(max(b))),min(b),max(b) from t1 group by a1,a2;
|
|
|
|
|
|
#
|
|
# Negative examples: queries that should NOT be treated as optimizable by
|
|
# QUICK_GROUP_MIN_MAX_SELECT
|
|
#
|
|
|
|
# select a non-indexed attribute
|
|
explain select a1,a2,b,d,min(c),max(c) from t1 group by a1,a2,b;
|
|
|
|
explain select a1,a2,b,d from t1 group by a1,a2,b;
|
|
|
|
# predicate that references an attribute that is after the MIN/MAX argument
|
|
# in the index
|
|
explain extended select a1,a2,min(b),max(b) from t1
|
|
where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') and (c > 'a111') group by a1,a2;
|
|
|
|
# predicate that references a non-indexed attribute
|
|
explain extended select a1,a2,b,min(c),max(c) from t1
|
|
where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') and (d > 'xy2') group by a1,a2,b;
|
|
|
|
explain extended select a1,a2,b,c from t1
|
|
where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') and (d > 'xy2') group by a1,a2,b,c;
|
|
|
|
# non-equality predicate for a non-group select attribute
|
|
explain select a1,a2,b,max(c),min(c) from t2 where (a2 = 'a') and (b = 'b') or (b < 'b') group by a1;
|
|
explain extended select a1,a2,b from t1 where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') and (c > 'a111') group by a1,a2,b;
|
|
|
|
# non-group field with an equality predicate that references a keypart after the
|
|
# MIN/MAX argument
|
|
explain select a1,a2,min(b),c from t2 where (a2 = 'a') and (c = 'a111') group by a1;
|
|
select a1,a2,min(b),c from t2 where (a2 = 'a') and (c = 'a111') group by a1;
|
|
|
|
# disjunction for a non-group select attribute
|
|
explain select a1,a2,b,max(c),min(c) from t2 where (a2 = 'a') and (b = 'b') or (b = 'a') group by a1;
|
|
|
|
# non-range predicate for the MIN/MAX attribute
|
|
explain select a1,a2,b,min(c),max(c) from t2
|
|
where (c > 'a000') and (c <= 'd999') and (c like '_8__') group by a1,a2,b;
|
|
|
|
# not all attributes are indexed by one index
|
|
explain select a1, a2, b, c, min(d), max(d) from t1 group by a1,a2,b,c;
|
|
|
|
# other aggregate functions than MIN/MAX
|
|
explain select a1,a2,count(a2) from t1 group by a1,a2,b;
|
|
explain extended select a1,a2,count(a2) from t1 where (a1 > 'a') group by a1,a2,b;
|
|
explain extended select sum(ord(a1)) from t1 where (a1 > 'a') group by a1,a2,b;
|
|
|
|
#
|
|
# MDEV-4120 UNIQUE indexes should not be considered for loose index scan
|
|
#
|
|
|
|
create table t4 as select distinct a1, a2, b, c from t1;
|
|
alter table t4 add unique index idxt4 (a1, a2, b, c);
|
|
|
|
--echo # This is "superceded" by MDEV-7118, and Loose Index Scan is again an option:
|
|
explain
|
|
select a1, a2, b, min(c) from t4 group by a1, a2, b;
|
|
select a1, a2, b, min(c) from t4 group by a1, a2, b;
|
|
|
|
drop table t4;
|
|
|
|
#
|
|
# Bug #16710: select distinct doesn't return all it should
|
|
#
|
|
|
|
explain select distinct(a1) from t1 where ord(a2) = 98;
|
|
select distinct(a1) from t1 where ord(a2) = 98;
|
|
|
|
#
|
|
# BUG#11044: DISTINCT or GROUP BY queries with equality predicates instead of MIN/MAX.
|
|
#
|
|
|
|
explain select a1 from t1 where a2 = 'b' group by a1;
|
|
select a1 from t1 where a2 = 'b' group by a1;
|
|
|
|
explain select distinct a1 from t1 where a2 = 'b';
|
|
select distinct a1 from t1 where a2 = 'b';
|
|
|
|
#
|
|
# Bug #12672: primary key implcitly included in every innodb index
|
|
#
|
|
# Test case moved to group_min_max_innodb
|
|
|
|
|
|
#
|
|
# Bug #6142: a problem with the empty innodb table
|
|
#
|
|
# Test case moved to group_min_max_innodb
|
|
|
|
|
|
#
|
|
# Bug #9798: group by with rollup
|
|
#
|
|
# Test case moved to group_min_max_innodb
|
|
|
|
|
|
#
|
|
# Bug #13293 Wrongly used index results in endless loop.
|
|
#
|
|
# Test case moved to group_min_max_innodb
|
|
|
|
|
|
drop table t1,t2,t3;
|
|
|
|
#
|
|
# Bug #14920 Ordering aggregated result sets with composite primary keys
|
|
# corrupts resultset
|
|
#
|
|
create table t1 (c1 int not null,c2 int not null, primary key(c1,c2));
|
|
insert into t1 (c1,c2) values
|
|
(10,1),(10,2),(10,3),(20,4),(20,5),(20,6),(30,7),(30,8),(30,9);
|
|
select distinct c1, c2 from t1 order by c2;
|
|
select c1,min(c2) as c2 from t1 group by c1 order by c2;
|
|
select c1,c2 from t1 group by c1,c2 order by c2;
|
|
drop table t1;
|
|
|
|
#
|
|
# Bug #16203: Analysis for possible min/max optimization erroneously
|
|
# returns impossible range
|
|
#
|
|
|
|
CREATE TABLE t1 (a varchar(5), b int(11), PRIMARY KEY (a,b));
|
|
INSERT INTO t1 VALUES ('AA',1), ('AA',2), ('AA',3), ('BB',1), ('AA',4);
|
|
OPTIMIZE TABLE t1;
|
|
|
|
SELECT a FROM t1 WHERE a='AA' GROUP BY a;
|
|
SELECT a FROM t1 WHERE a='BB' GROUP BY a;
|
|
|
|
EXPLAIN SELECT a FROM t1 WHERE a='AA' GROUP BY a;
|
|
EXPLAIN SELECT a FROM t1 WHERE a='BB' GROUP BY a;
|
|
|
|
SELECT DISTINCT a FROM t1 WHERE a='BB';
|
|
SELECT DISTINCT a FROM t1 WHERE a LIKE 'B%';
|
|
SELECT a FROM t1 WHERE a LIKE 'B%' GROUP BY a;
|
|
|
|
DROP TABLE t1;
|
|
|
|
|
|
#
|
|
# Bug #15102: select distinct returns empty result, select count
|
|
# distinct > 0 (correct)
|
|
#
|
|
|
|
CREATE TABLE t1 (
|
|
a int(11) NOT NULL DEFAULT '0',
|
|
b varchar(16) COLLATE latin1_general_ci NOT NULL DEFAULT '',
|
|
PRIMARY KEY (a,b)
|
|
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci;
|
|
|
|
delimiter |;
|
|
|
|
CREATE PROCEDURE a(x INT)
|
|
BEGIN
|
|
DECLARE rnd INT;
|
|
DECLARE cnt INT;
|
|
|
|
WHILE x > 0 DO
|
|
SET rnd= x % 100;
|
|
SET cnt = (SELECT COUNT(*) FROM t1 WHERE a = rnd);
|
|
INSERT INTO t1(a,b) VALUES (rnd, CAST(cnt AS CHAR));
|
|
SET x= x - 1;
|
|
END WHILE;
|
|
END|
|
|
|
|
DELIMITER ;|
|
|
|
|
CALL a(1000);
|
|
|
|
SELECT a FROM t1 WHERE a=0;
|
|
SELECT DISTINCT a FROM t1 WHERE a=0;
|
|
SELECT COUNT(DISTINCT a) FROM t1 WHERE a=0;
|
|
|
|
DROP TABLE t1;
|
|
DROP PROCEDURE a;
|
|
|
|
#
|
|
# Bug #18068: SELECT DISTINCT
|
|
#
|
|
|
|
CREATE TABLE t1 (a varchar(64) NOT NULL default '', KEY(a));
|
|
|
|
INSERT INTO t1 (a) VALUES
|
|
(''), ('CENTRAL'), ('EASTERN'), ('GREATER LONDON'),
|
|
('NORTH CENTRAL'), ('NORTH EAST'), ('NORTH WEST'), ('SCOTLAND'),
|
|
('SOUTH EAST'), ('SOUTH WEST'), ('WESTERN');
|
|
|
|
EXPLAIN SELECT DISTINCT a,a FROM t1 ORDER BY a;
|
|
SELECT DISTINCT a,a FROM t1 ORDER BY a;
|
|
|
|
DROP TABLE t1;
|
|
|
|
#
|
|
# Bug #21007: NATURAL JOIN (any JOIN (2 x NATURAL JOIN)) crashes the server
|
|
#
|
|
|
|
CREATE TABLE t1 (id1 INT, id2 INT);
|
|
CREATE TABLE t2 (id2 INT, id3 INT, id5 INT);
|
|
CREATE TABLE t3 (id3 INT, id4 INT);
|
|
CREATE TABLE t4 (id4 INT);
|
|
CREATE TABLE t5 (id5 INT, id6 INT);
|
|
CREATE TABLE t6 (id6 INT);
|
|
|
|
INSERT INTO t1 VALUES(1,1);
|
|
INSERT INTO t2 VALUES(1,1,1);
|
|
INSERT INTO t3 VALUES(1,1);
|
|
INSERT INTO t4 VALUES(1);
|
|
INSERT INTO t5 VALUES(1,1);
|
|
INSERT INTO t6 VALUES(1);
|
|
|
|
# original bug query
|
|
SELECT * FROM
|
|
t1
|
|
NATURAL JOIN
|
|
(t2 JOIN (t3 NATURAL JOIN t4, t5 NATURAL JOIN t6)
|
|
ON (t3.id3 = t2.id3 AND t5.id5 = t2.id5));
|
|
|
|
# inner join swapped
|
|
SELECT * FROM
|
|
t1
|
|
NATURAL JOIN
|
|
(((t3 NATURAL JOIN t4) join (t5 NATURAL JOIN t6) on t3.id4 = t5.id5) JOIN t2
|
|
ON (t3.id3 = t2.id3 AND t5.id5 = t2.id5));
|
|
|
|
# one join less, no ON cond
|
|
SELECT * FROM t1 NATURAL JOIN ((t3 join (t5 NATURAL JOIN t6)) JOIN t2);
|
|
|
|
# wrong error message: 'id2' - ambiguous column
|
|
SELECT * FROM
|
|
(t2 JOIN (t3 NATURAL JOIN t4, t5 NATURAL JOIN t6)
|
|
ON (t3.id3 = t2.id3 AND t5.id5 = t2.id5))
|
|
NATURAL JOIN
|
|
t1;
|
|
SELECT * FROM
|
|
(t2 JOIN ((t3 NATURAL JOIN t4) join (t5 NATURAL JOIN t6)))
|
|
NATURAL JOIN
|
|
t1;
|
|
|
|
DROP TABLE t1,t2,t3,t4,t5,t6;
|
|
|
|
#
|
|
# Bug#22342: No results returned for query using max and group by
|
|
#
|
|
CREATE TABLE t1 (a int, b int, KEY (a,b), KEY b (b));
|
|
INSERT INTO t1 VALUES (1,1),(1,2),(1,0),(1,3);
|
|
|
|
explain SELECT MAX(b), a FROM t1 WHERE b < 2 AND a = 1 GROUP BY a;
|
|
SELECT MAX(b), a FROM t1 WHERE b < 2 AND a = 1 GROUP BY a;
|
|
SELECT MIN(b), a FROM t1 WHERE b > 1 AND a = 1 GROUP BY a;
|
|
CREATE TABLE t2 (a int, b int, c int, PRIMARY KEY (a,b,c));
|
|
INSERT INTO t2 SELECT a,b,b FROM t1;
|
|
explain SELECT MIN(c) FROM t2 WHERE b = 2 and a = 1 and c > 1 GROUP BY a;
|
|
SELECT MIN(c) FROM t2 WHERE b = 2 and a = 1 and c > 1 GROUP BY a;
|
|
|
|
DROP TABLE t1,t2;
|
|
|
|
#
|
|
# Bug#24156: Loose index scan not used with CREATE TABLE ...SELECT and similar statements
|
|
#
|
|
|
|
CREATE TABLE t1 (a INT, b INT, INDEX (a,b));
|
|
INSERT INTO t1 (a, b) VALUES (1,1), (1,2), (1,3), (1,4), (1,5),
|
|
(2,2), (2,3), (2,1), (3,1), (4,1), (4,2), (4,3), (4,4), (4,5), (4,6);
|
|
EXPLAIN SELECT max(b), a FROM t1 GROUP BY a;
|
|
FLUSH STATUS;
|
|
SELECT max(b), a FROM t1 GROUP BY a;
|
|
SHOW STATUS LIKE 'handler_read__e%';
|
|
EXPLAIN SELECT max(b), a FROM t1 GROUP BY a;
|
|
FLUSH STATUS;
|
|
CREATE TABLE t2 SELECT max(b), a FROM t1 GROUP BY a;
|
|
SHOW STATUS LIKE 'handler_read__e%';
|
|
FLUSH STATUS;
|
|
SELECT * FROM (SELECT max(b), a FROM t1 GROUP BY a) b;
|
|
SHOW STATUS LIKE 'handler_read__e%';
|
|
FLUSH STATUS;
|
|
(SELECT max(b), a FROM t1 GROUP BY a) UNION
|
|
(SELECT max(b), a FROM t1 GROUP BY a);
|
|
SHOW STATUS LIKE 'handler_read__e%';
|
|
EXPLAIN (SELECT max(b), a FROM t1 GROUP BY a) UNION
|
|
(SELECT max(b), a FROM t1 GROUP BY a);
|
|
|
|
EXPLAIN SELECT (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) x
|
|
FROM t1 AS t1_outer;
|
|
EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE EXISTS
|
|
(SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
|
|
EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE
|
|
(SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) > 12;
|
|
EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE
|
|
a IN (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
|
|
EXPLAIN SELECT 1 FROM t1 AS t1_outer GROUP BY a HAVING
|
|
a > (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
|
|
EXPLAIN SELECT 1 FROM t1 AS t1_outer1 JOIN t1 AS t1_outer2
|
|
ON t1_outer1.a = (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2)
|
|
AND t1_outer1.b = t1_outer2.b;
|
|
EXPLAIN SELECT (SELECT (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) x
|
|
FROM t1 AS t1_outer) x2 FROM t1 AS t1_outer2;
|
|
|
|
CREATE TABLE t3 LIKE t1;
|
|
FLUSH STATUS;
|
|
INSERT INTO t3 SELECT a,MAX(b) FROM t1 GROUP BY a;
|
|
SHOW STATUS LIKE 'handler_read__e%';
|
|
DELETE FROM t3;
|
|
FLUSH STATUS;
|
|
INSERT INTO t3 SELECT 1, (SELECT MAX(b) FROM t1 GROUP BY a HAVING a < 2)
|
|
FROM t1 LIMIT 1;
|
|
SHOW STATUS LIKE 'handler_read__e%';
|
|
FLUSH STATUS;
|
|
DELETE FROM t3 WHERE (SELECT MAX(b) FROM t1 GROUP BY a HAVING a < 2) > 10000;
|
|
SHOW STATUS LIKE 'handler_read__e%';
|
|
FLUSH STATUS;
|
|
--error ER_SUBQUERY_NO_1_ROW
|
|
DELETE FROM t3 WHERE (SELECT (SELECT MAX(b) FROM t1 GROUP BY a HAVING a < 2) x
|
|
FROM t1) > 10000;
|
|
SHOW STATUS LIKE 'handler_read__e%';
|
|
|
|
DROP TABLE t1,t2,t3;
|
|
|
|
#
|
|
# Bug#25602: queries with DISTINCT and SQL_BIG_RESULT hint
|
|
# for which loose scan optimization is applied
|
|
#
|
|
|
|
CREATE TABLE t1 (a int, INDEX idx(a));
|
|
INSERT INTO t1 VALUES
|
|
(4), (2), (1), (2), (4), (2), (1), (4),
|
|
(4), (2), (1), (2), (2), (4), (1), (4);
|
|
|
|
EXPLAIN SELECT DISTINCT(a) FROM t1;
|
|
SELECT DISTINCT(a) FROM t1;
|
|
EXPLAIN SELECT SQL_BIG_RESULT DISTINCT(a) FROM t1;
|
|
SELECT SQL_BIG_RESULT DISTINCT(a) FROM t1;
|
|
|
|
DROP TABLE t1;
|
|
|
|
#
|
|
# Bug #32268: Indexed queries give bogus MIN and MAX results
|
|
#
|
|
|
|
CREATE TABLE t1 (a INT, b INT);
|
|
INSERT INTO t1 (a, b) VALUES (1,1), (1,2), (1,3);
|
|
INSERT INTO t1 SELECT a + 1, b FROM t1;
|
|
INSERT INTO t1 SELECT a + 2, b FROM t1;
|
|
|
|
EXPLAIN
|
|
SELECT a, MIN(b), MAX(b) FROM t1 GROUP BY a ORDER BY a DESC;
|
|
SELECT a, MIN(b), MAX(b) FROM t1 GROUP BY a ORDER BY a DESC;
|
|
|
|
CREATE INDEX break_it ON t1 (a, b);
|
|
|
|
EXPLAIN
|
|
SELECT a, MIN(b), MAX(b) FROM t1 GROUP BY a ORDER BY a;
|
|
SELECT a, MIN(b), MAX(b) FROM t1 GROUP BY a ORDER BY a;
|
|
|
|
EXPLAIN
|
|
SELECT a, MIN(b), MAX(b) FROM t1 GROUP BY a ORDER BY a DESC;
|
|
SELECT a, MIN(b), MAX(b) FROM t1 GROUP BY a ORDER BY a DESC;
|
|
|
|
EXPLAIN
|
|
SELECT a, MIN(b), MAX(b), AVG(b) FROM t1 GROUP BY a ORDER BY a DESC;
|
|
SELECT a, MIN(b), MAX(b), AVG(b) FROM t1 GROUP BY a ORDER BY a DESC;
|
|
|
|
DROP TABLE t1;
|
|
|
|
#
|
|
# Bug#38195: Incorrect handling of aggregate functions when loose index scan is
|
|
# used causes server crash.
|
|
#
|
|
create table t1 (a int, b int, key (a,b), key `index` (a,b)) engine=MyISAM;
|
|
insert into t1 (a,b) values
|
|
(0,0),(0,1),(0,2),(0,3),(0,4),(0,5),(0,6),
|
|
(0,7),(0,8),(0,9),(0,10),(0,11),(0,12),(0,13),
|
|
(1,0),(1,1),(1,2),(1,3),(1,4),(1,5),(1,6),
|
|
(1,7),(1,8),(1,9),(1,10),(1,11),(1,12),(1,13),
|
|
(2,0),(2,1),(2,2),(2,3),(2,4),(2,5),(2,6),
|
|
(2,7),(2,8),(2,9),(2,10),(2,11),(2,12),(2,13),
|
|
(3,0),(3,1),(3,2),(3,3),(3,4),(3,5),(3,6),
|
|
(3,7),(3,8),(3,9),(3,10),(3,11),(3,12),(3,13);
|
|
insert into t1 (a,b) select a, max(b)+1 from t1 where a = 0 group by a;
|
|
select * from t1;
|
|
explain extended select sql_buffer_result a, max(b)+1 from t1 where a = 0 group by a;
|
|
drop table t1;
|
|
|
|
|
|
#
|
|
# Bug #41610: key_infix_len can be overwritten causing some group by queries
|
|
# to return no rows
|
|
#
|
|
|
|
CREATE TABLE t1 (a int, b int, c int, d int,
|
|
KEY foo (c,d,a,b), KEY bar (c,a,b,d));
|
|
|
|
INSERT INTO t1 VALUES (1, 1, 1, 1), (1, 1, 1, 2), (1, 1, 1, 3), (1, 1, 1, 4);
|
|
INSERT INTO t1 SELECT * FROM t1;
|
|
INSERT INTO t1 SELECT * FROM t1;
|
|
INSERT INTO t1 SELECT a,b,c+1,d FROM t1;
|
|
|
|
#Should be non-empty
|
|
EXPLAIN SELECT DISTINCT c FROM t1 WHERE d=4;
|
|
SELECT DISTINCT c FROM t1 WHERE d=4;
|
|
|
|
DROP TABLE t1;
|
|
|
|
--echo #
|
|
--echo # Bug #45386: Wrong query result with MIN function in field list,
|
|
--echo # WHERE and GROUP BY clause
|
|
--echo #
|
|
|
|
CREATE TABLE t (a INT, b INT, INDEX (a,b));
|
|
INSERT INTO t VALUES (2,0), (2,0), (2,1), (2,1);
|
|
INSERT INTO t SELECT * FROM t;
|
|
INSERT INTO t SELECT * FROM t;
|
|
|
|
--echo # test MIN
|
|
--echo #should use range with index for group by
|
|
EXPLAIN
|
|
SELECT a, MIN(b) FROM t WHERE b <> 0 GROUP BY a;
|
|
--echo #should return 1 row
|
|
SELECT a, MIN(b) FROM t WHERE b <> 0 GROUP BY a;
|
|
|
|
--echo # test MAX
|
|
--echo #should use range with index for group by
|
|
EXPLAIN
|
|
SELECT a, MAX(b) FROM t WHERE b <> 1 GROUP BY a;
|
|
--echo #should return 1 row
|
|
SELECT a, MAX(b) FROM t WHERE b <> 1 GROUP BY a;
|
|
|
|
--echo # test 3 ranges and use the middle one
|
|
INSERT INTO t SELECT a, 2 FROM t;
|
|
|
|
--echo #should use range with index for group by
|
|
EXPLAIN
|
|
SELECT a, MAX(b) FROM t WHERE b > 0 AND b < 2 GROUP BY a;
|
|
--echo #should return 1 row
|
|
SELECT a, MAX(b) FROM t WHERE b > 0 AND b < 2 GROUP BY a;
|
|
|
|
DROP TABLE t;
|
|
|
|
--echo #
|
|
--echo # Bug #48472: Loose index scan inappropriately chosen for some WHERE
|
|
--echo # conditions
|
|
--echo #
|
|
|
|
CREATE TABLE t (a INT, b INT, INDEX (a,b));
|
|
INSERT INTO t VALUES (2,0), (2,0), (2,1), (2,1);
|
|
INSERT INTO t SELECT * FROM t;
|
|
|
|
SELECT a, MAX(b) FROM t WHERE 0=b+0 GROUP BY a;
|
|
|
|
DROP TABLE t;
|
|
|
|
--echo End of 5.0 tests
|
|
|
|
--echo #
|
|
--echo # Bug #46607: Assertion failed: (cond_type == Item::FUNC_ITEM) results in
|
|
--echo # server crash
|
|
--echo #
|
|
|
|
CREATE TABLE t (a INT, b INT, INDEX (a,b));
|
|
INSERT INTO t VALUES (2,0), (2,0), (2,1), (2,1);
|
|
INSERT INTO t SELECT * FROM t;
|
|
|
|
SELECT a, MAX(b) FROM t WHERE b GROUP BY a;
|
|
|
|
DROP TABLE t;
|
|
|
|
#
|
|
# BUG#49902 - SELECT returns incorrect results
|
|
#
|
|
CREATE TABLE t1(a INT NOT NULL, b INT NOT NULL, KEY (b));
|
|
INSERT INTO t1 VALUES(1,1),(2,1);
|
|
ANALYZE TABLE t1;
|
|
SELECT 1 AS c, b FROM t1 WHERE b IN (1,2) GROUP BY c, b;
|
|
SELECT a FROM t1 WHERE b=1;
|
|
DROP TABLE t1;
|
|
|
|
--echo #
|
|
--echo # Bug#47762: Incorrect result from MIN() when WHERE tests NOT NULL column
|
|
--echo # for NULL
|
|
--echo #
|
|
|
|
--echo ## Test for NULLs allowed
|
|
CREATE TABLE t1 ( a INT, KEY (a) );
|
|
INSERT INTO t1 VALUES (1), (2), (3);
|
|
--source include/min_null_cond.inc
|
|
INSERT INTO t1 VALUES (NULL), (NULL);
|
|
--source include/min_null_cond.inc
|
|
DROP TABLE t1;
|
|
|
|
--echo ## Test for NOT NULLs
|
|
CREATE TABLE t1 ( a INT NOT NULL PRIMARY KEY);
|
|
INSERT INTO t1 VALUES (1), (2), (3);
|
|
--echo #
|
|
--echo # NULL-safe operator test disabled for non-NULL indexed columns.
|
|
--echo #
|
|
--echo # See bugs
|
|
--echo #
|
|
--echo # - Bug#52173: Reading NULL value from non-NULL index gives
|
|
--echo # wrong result in embedded server
|
|
--echo #
|
|
--echo # - Bug#52174: Sometimes wrong plan when reading a MAX value from
|
|
--echo # non-NULL index
|
|
--echo #
|
|
--let $skip_null_safe_test= 1
|
|
--source include/min_null_cond.inc
|
|
DROP TABLE t1;
|
|
|
|
--echo #
|
|
--echo # Bug#53859: Valgrind: opt_sum_query(TABLE_LIST*, List<Item>&, Item*) at
|
|
--echo # opt_sum.cc:305
|
|
--echo #
|
|
CREATE TABLE t1 ( a INT, KEY (a) );
|
|
INSERT INTO t1 VALUES (1), (2), (3);
|
|
|
|
SELECT MIN( a ) AS min_a
|
|
FROM t1
|
|
WHERE a > 1 AND a IS NULL
|
|
ORDER BY min_a;
|
|
|
|
DROP TABLE t1;
|
|
|
|
#
|
|
# MDEV-729 lp:998028 - Server crashes on normal shutdown in closefrm after executing a query from MyISAM table
|
|
#
|
|
create table t1 (a int, b varchar(1), key(b,a)) engine=myisam;
|
|
insert t1 values (1,'a'),(2,'b'),(3,'c'),(4,'d'),(5,'e'),(6,'f'),(7,'g'),(8,'h'),(null,'i');
|
|
select min(a), b from t1 where a=7 or b='z' group by b;
|
|
flush tables;
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # LP BUG#888456 Wrong result with DISTINCT , ANY , subquery_cache=off , NOT NULL
|
|
--echo #
|
|
|
|
CREATE TABLE t1 ( a int NOT NULL) ;
|
|
INSERT INTO t1 VALUES (28),(29),(9);
|
|
|
|
CREATE TABLE t2 ( a int, KEY (a)) ;
|
|
INSERT INTO t2 VALUES (1),(1),(1),(4),(4),(5),(5),(8),(8),(9);
|
|
|
|
explain select (select t2.a from t2 where t2.a >= t1.a group by t2.a) from t1;
|
|
select (select t2.a from t2 where t2.a >= t1.a group by t2.a) from t1;
|
|
|
|
drop table t1, t2;
|
|
|
|
--echo #
|
|
--echo # LP BUG#900375 Wrong result with derived_merge=ON, DISTINCT or GROUP BY, EXISTS
|
|
--echo #
|
|
|
|
CREATE TABLE t1 ( a INT, b INT, KEY (b) );
|
|
INSERT INTO t1 VALUES
|
|
(100,10),(101,11),(102,12),(103,13),(104,14),
|
|
(105,15),(106,16),(107,17),(108,18),(109,19);
|
|
|
|
EXPLAIN
|
|
SELECT alias1.* FROM t1, (SELECT * FROM t1) AS alias1
|
|
WHERE EXISTS ( SELECT DISTINCT b FROM t1 WHERE b <= alias1.a ) ;
|
|
SELECT alias1.* FROM t1, (SELECT * FROM t1) AS alias1
|
|
WHERE EXISTS ( SELECT DISTINCT b FROM t1 WHERE b <= alias1.a ) ;
|
|
|
|
EXPLAIN
|
|
SELECT alias1.* FROM t1, t1 AS alias1
|
|
WHERE EXISTS ( SELECT DISTINCT b FROM t1 WHERE b <= alias1.a ) ;
|
|
SELECT alias1.* FROM t1, t1 AS alias1
|
|
WHERE EXISTS ( SELECT DISTINCT b FROM t1 WHERE b <= alias1.a ) ;
|
|
|
|
drop table t1;
|
|
|
|
--echo End of 5.1 tests
|
|
|
|
--echo #
|
|
--echo # MDEV-765 lp:825075 - Wrong result with GROUP BY + multipart key + MIN/MAX loose scan
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (a varchar(1), b varchar(1), KEY (b,a));
|
|
INSERT INTO t1 VALUES
|
|
('0',NULL),('9',NULL),('8','c'),('4','d'),('7','d'),(NULL,'f'),
|
|
('7','f'),('8','g'),(NULL,'j');
|
|
|
|
explain
|
|
SELECT max(a) , b FROM t1 WHERE a IS NULL OR b = 'z' GROUP BY b;
|
|
SELECT max(a) , b FROM t1 WHERE a IS NULL OR b = 'z' GROUP BY b;
|
|
|
|
explain
|
|
SELECT b, min(a) FROM t1 WHERE a = '7' OR b = 'z' GROUP BY b;
|
|
SELECT b, min(a) FROM t1 WHERE a = '7' OR b = 'z' GROUP BY b;
|
|
|
|
explain
|
|
SELECT b, min(a) FROM t1 WHERE (a = b OR b = 'd' OR b is NULL) GROUP BY b;
|
|
SELECT b, min(a) FROM t1 WHERE (a = b OR b = 'd' OR b is NULL) GROUP BY b;
|
|
|
|
explain
|
|
SELECT b, min(a) FROM t1 WHERE a > ('0' = b) AND b = 'z' GROUP BY b;
|
|
SELECT b, min(a) FROM t1 WHERE a > ('0' = b) AND b = 'z' GROUP BY b;
|
|
|
|
explain
|
|
SELECT b, min(a) FROM t1 WHERE a > '0' AND (b < (a = '7')) GROUP BY b;
|
|
SELECT b, min(a) FROM t1 WHERE a > '0' AND (b < (a = '7')) GROUP BY b;
|
|
|
|
explain
|
|
SELECT b, min(a) FROM t1 WHERE (a > '0' AND (a > '1' OR b = 'd')) GROUP BY b;
|
|
SELECT b, min(a) FROM t1 WHERE (a > '0' AND (a > '1' OR b = 'd')) GROUP BY b;
|
|
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # MDEV-4140 Wrong result with GROUP BY + multipart key + MIN/MAX loose scan and a subquery
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (a int, b int, KEY (b, a)) ;
|
|
INSERT INTO t1 VALUES (0,99),(9,99),(4,0),(7,0),(99,0),(7,0),(8,0),(99,0),(1,0);
|
|
INSERT INTO t1 VALUES (0,99),(9,99),(4,0),(7,0),(99,0),(7,0),(8,0),(99,0),(1,0);
|
|
CREATE TABLE t2 (c int) ;
|
|
INSERT INTO t2 VALUES (0),(1);
|
|
|
|
EXPLAIN
|
|
SELECT MIN(a), b FROM t1 WHERE a > 0 GROUP BY b;
|
|
SELECT MIN(a), b FROM t1 WHERE a > 0 GROUP BY b;
|
|
EXPLAIN
|
|
SELECT MIN(a), b FROM t1 WHERE a > ( SELECT c FROM t2 WHERE c = 0 ) GROUP BY b;
|
|
SELECT MIN(a), b FROM t1 WHERE a > ( SELECT c FROM t2 WHERE c = 0 ) GROUP BY b;
|
|
# this test is for 5.5 to ensure that the subquery is expensive
|
|
EXPLAIN
|
|
SELECT MIN(a), b FROM t1 WHERE a > ( SELECT min(c) FROM t2, t1 t1a, t1 t1b WHERE c = 0 ) GROUP BY b;
|
|
SELECT MIN(a), b FROM t1 WHERE a > ( SELECT min(c) FROM t2, t1 t1a, t1 t1b WHERE c = 0 ) GROUP BY b;
|
|
|
|
drop table t1, t2;
|
|
|
|
--echo End of 5.3 tests
|
|
|
|
--echo #
|
|
--echo # WL#3220 (Loose index scan for COUNT DISTINCT)
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (a INT, b INT, c INT, KEY (a,b));
|
|
INSERT INTO t1 VALUES (1,1,1), (1,2,1), (1,3,1), (1,4,1);
|
|
INSERT INTO t1 SELECT a, b + 4, 1 FROM t1;
|
|
INSERT INTO t1 SELECT a + 1, b, 1 FROM t1;
|
|
CREATE TABLE t2 (a INT, b INT, c INT, d INT, e INT, f INT, KEY (a,b,c));
|
|
INSERT INTO t2 VALUES (1,1,1,1,1,1), (1,2,1,1,1,1), (1,3,1,1,1,1),
|
|
(1,4,1,1,1,1);
|
|
INSERT INTO t2 SELECT a, b + 4, c,d,e,f FROM t2;
|
|
INSERT INTO t2 SELECT a + 1, b, c,d,e,f FROM t2;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a) FROM t1;
|
|
SELECT COUNT(DISTINCT a) FROM t1;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a,b) FROM t1;
|
|
SELECT COUNT(DISTINCT a,b) FROM t1;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT b,a) FROM t1;
|
|
SELECT COUNT(DISTINCT b,a) FROM t1;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT b) FROM t1;
|
|
SELECT COUNT(DISTINCT b) FROM t1;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a) FROM t1 GROUP BY a;
|
|
SELECT COUNT(DISTINCT a) FROM t1 GROUP BY a;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT b) FROM t1 GROUP BY a;
|
|
SELECT COUNT(DISTINCT b) FROM t1 GROUP BY a;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a) FROM t1 GROUP BY b;
|
|
SELECT COUNT(DISTINCT a) FROM t1 GROUP BY b;
|
|
|
|
EXPLAIN SELECT DISTINCT COUNT(DISTINCT a) FROM t1;
|
|
SELECT DISTINCT COUNT(DISTINCT a) FROM t1;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a, b + 0) FROM t1;
|
|
SELECT COUNT(DISTINCT a, b + 0) FROM t1;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a) FROM t1 HAVING COUNT(DISTINCT b) < 10;
|
|
SELECT COUNT(DISTINCT a) FROM t1 HAVING COUNT(DISTINCT b) < 10;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a) FROM t1 HAVING COUNT(DISTINCT c) < 10;
|
|
SELECT COUNT(DISTINCT a) FROM t1 HAVING COUNT(DISTINCT c) < 10;
|
|
|
|
EXPLAIN SELECT 1 FROM t1 HAVING COUNT(DISTINCT a) < 10;
|
|
SELECT 1 FROM t1 HAVING COUNT(DISTINCT a) < 10;
|
|
|
|
EXPLAIN SELECT 1 FROM t1 GROUP BY a HAVING COUNT(DISTINCT b) > 1;
|
|
SELECT 1 FROM t1 GROUP BY a HAVING COUNT(DISTINCT b) > 1;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT t1_1.a) FROM t1 t1_1, t1 t1_2 GROUP BY t1_1.a;
|
|
SELECT COUNT(DISTINCT t1_1.a) FROM t1 t1_1, t1 t1_2 GROUP BY t1_1.a;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a), 12 FROM t1;
|
|
SELECT COUNT(DISTINCT a), 12 FROM t1;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a, b, c) FROM t2;
|
|
SELECT COUNT(DISTINCT a, b, c) FROM t2;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a), SUM(DISTINCT a), AVG(DISTINCT a) FROM t2;
|
|
SELECT COUNT(DISTINCT a), SUM(DISTINCT a), AVG(DISTINCT a) FROM t2;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a), SUM(DISTINCT a), AVG(DISTINCT f) FROM t2;
|
|
SELECT COUNT(DISTINCT a), SUM(DISTINCT a), AVG(DISTINCT f) FROM t2;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a, b), COUNT(DISTINCT b, a) FROM t2;
|
|
SELECT COUNT(DISTINCT a, b), COUNT(DISTINCT b, a) FROM t2;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a, b), COUNT(DISTINCT b, f) FROM t2;
|
|
SELECT COUNT(DISTINCT a, b), COUNT(DISTINCT b, f) FROM t2;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a, b), COUNT(DISTINCT b, d) FROM t2;
|
|
SELECT COUNT(DISTINCT a, b), COUNT(DISTINCT b, d) FROM t2;
|
|
|
|
EXPLAIN SELECT a, c, COUNT(DISTINCT c, a, b) FROM t2 GROUP BY a, b, c;
|
|
SELECT a, c, COUNT(DISTINCT c, a, b) FROM t2 GROUP BY a, b, c;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT c, a, b) FROM t2
|
|
WHERE a > 5 AND b BETWEEN 10 AND 20 GROUP BY a, b, c;
|
|
SELECT COUNT(DISTINCT c, a, b) FROM t2
|
|
WHERE a > 5 AND b BETWEEN 10 AND 20 GROUP BY a, b, c;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT b), SUM(DISTINCT b) FROM t2 WHERE a = 5
|
|
GROUP BY b;
|
|
SELECT COUNT(DISTINCT b), SUM(DISTINCT b) FROM t2 WHERE a = 5
|
|
GROUP BY b;
|
|
|
|
EXPLAIN SELECT a, COUNT(DISTINCT b), SUM(DISTINCT b) FROM t2 GROUP BY a;
|
|
SELECT a, COUNT(DISTINCT b), SUM(DISTINCT b) FROM t2 GROUP BY a;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT b), SUM(DISTINCT b) FROM t2 GROUP BY a;
|
|
SELECT COUNT(DISTINCT b), SUM(DISTINCT b) FROM t2 GROUP BY a;
|
|
|
|
EXPLAIN SELECT COUNT(DISTINCT a, b) FROM t2 WHERE c = 13 AND d = 42;
|
|
SELECT COUNT(DISTINCT a, b) FROM t2 WHERE c = 13 AND d = 42;
|
|
|
|
EXPLAIN SELECT a, COUNT(DISTINCT a), SUM(DISTINCT a) FROM t2
|
|
WHERE b = 13 AND c = 42 GROUP BY a;
|
|
SELECT a, COUNT(DISTINCT a), SUM(DISTINCT a) FROM t2
|
|
WHERE b = 13 AND c = 42 GROUP BY a;
|
|
|
|
# This query could have been resolved using loose index scan since the second
|
|
# part of count(..) is defined by a constant predicate
|
|
EXPLAIN SELECT COUNT(DISTINCT a, b), SUM(DISTINCT a) FROM t2 WHERE b = 42;
|
|
SELECT COUNT(DISTINCT a, b), SUM(DISTINCT a) FROM t2 WHERE b = 42;
|
|
|
|
EXPLAIN SELECT SUM(DISTINCT a), MAX(b) FROM t2 GROUP BY a;
|
|
SELECT SUM(DISTINCT a), MAX(b) FROM t2 GROUP BY a;
|
|
|
|
EXPLAIN SELECT 42 * (a + c + COUNT(DISTINCT c, a, b)) FROM t2 GROUP BY a, b, c;
|
|
SELECT 42 * (a + c + COUNT(DISTINCT c, a, b)) FROM t2 GROUP BY a, b, c;
|
|
|
|
EXPLAIN SELECT (SUM(DISTINCT a) + MAX(b)) FROM t2 GROUP BY a;
|
|
SELECT (SUM(DISTINCT a) + MAX(b)) FROM t2 GROUP BY a;
|
|
|
|
DROP TABLE t1,t2;
|
|
|
|
--echo # end of WL#3220 tests
|
|
|
|
--echo #
|
|
--echo # Bug#50539: Wrong result when loose index scan is used for an aggregate
|
|
--echo # function with distinct
|
|
--echo #
|
|
CREATE TABLE t1 (
|
|
f1 int(11) NOT NULL DEFAULT '0',
|
|
f2 char(1) NOT NULL DEFAULT '',
|
|
KEY (f1,f2)
|
|
) ;
|
|
insert into t1 values(1,'A'),(1 , 'B'), (1, 'C'), (2, 'A'),
|
|
(3, 'A'), (3, 'B'), (3, 'C'), (3, 'D');
|
|
|
|
SELECT f1, COUNT(DISTINCT f2) FROM t1 GROUP BY f1;
|
|
explain SELECT f1, COUNT(DISTINCT f2) FROM t1 GROUP BY f1;
|
|
|
|
drop table t1;
|
|
--echo # End of test#50539.
|
|
|
|
--echo #
|
|
--echo # Bug#17217128 - BAD INTERACTION BETWEEN MIN/MAX AND
|
|
--echo # "HAVING SUM(DISTINCT)": WRONG RESULTS.
|
|
--echo #
|
|
|
|
CREATE TABLE t (a INT, b INT, KEY(a,b));
|
|
INSERT INTO t VALUES (1,1), (2,2), (3,3), (4,4), (1,0), (3,2), (4,5);
|
|
ANALYZE TABLE t;
|
|
|
|
SELECT a, SUM(DISTINCT a), MIN(b) FROM t GROUP BY a;
|
|
EXPLAIN SELECT a, SUM(DISTINCT a), MIN(b) FROM t GROUP BY a;
|
|
|
|
SELECT a, SUM(DISTINCT a), MAX(b) FROM t GROUP BY a;
|
|
EXPLAIN SELECT a, SUM(DISTINCT a), MAX(b) FROM t GROUP BY a;
|
|
|
|
SELECT a, MAX(b) FROM t GROUP BY a HAVING SUM(DISTINCT a);
|
|
EXPLAIN SELECT a, MAX(b) FROM t GROUP BY a HAVING SUM(DISTINCT a);
|
|
|
|
SELECT SUM(DISTINCT a), MIN(b), MAX(b) FROM t;
|
|
EXPLAIN SELECT SUM(DISTINCT a), MIN(b), MAX(b) FROM t;
|
|
|
|
SELECT a, SUM(DISTINCT a), MIN(b), MAX(b) FROM t GROUP BY a;
|
|
EXPLAIN SELECT a, SUM(DISTINCT a), MIN(b), MAX(b) FROM t GROUP BY a;
|
|
DROP TABLE t;
|
|
|
|
--echo #
|
|
--echo # MDEV-4219 A simple select query returns random data (upstream bug#68473)
|
|
--echo #
|
|
|
|
--disable_warnings
|
|
drop table if exists faulty;
|
|
--enable_warnings
|
|
|
|
# MySQL's test case
|
|
|
|
CREATE TABLE faulty (
|
|
a int(11) unsigned NOT NULL AUTO_INCREMENT,
|
|
b int(11) unsigned NOT NULL,
|
|
c datetime NOT NULL,
|
|
PRIMARY KEY (a),
|
|
UNIQUE KEY b_and_c (b,c)
|
|
);
|
|
|
|
INSERT INTO faulty (b, c) VALUES
|
|
(1801, '2013-02-15 09:00:00'),
|
|
(1802, '2013-02-28 09:00:00'),
|
|
(1802, '2013-03-01 09:00:00'),
|
|
(5, '1990-02-15 09:00:00'),
|
|
(5, '2013-02-15 09:00:00'),
|
|
(5, '2009-02-15 17:00:00');
|
|
|
|
EXPLAIN
|
|
SELECT DISTINCT b, c FROM faulty WHERE b='1802' ORDER BY c;
|
|
SELECT DISTINCT b, c FROM faulty WHERE b='1802' ORDER BY c;
|
|
|
|
drop table faulty;
|
|
|
|
# MariaDB test case
|
|
|
|
CREATE TABLE t1 (a INT, b INT);
|
|
INSERT INTO t1 (a, b) VALUES (1,1), (1,2), (1,3);
|
|
INSERT INTO t1 SELECT a + 1, b FROM t1;
|
|
INSERT INTO t1 SELECT a + 2, b FROM t1;
|
|
|
|
CREATE INDEX break_it ON t1 (a, b);
|
|
|
|
EXPLAIN
|
|
SELECT distinct a, b FROM t1 where a = '3' ORDER BY b;
|
|
SELECT distinct a, b FROM t1 where a = '3' ORDER BY b;
|
|
|
|
drop table t1;
|
|
|
|
--echo #
|
|
--echo # Start of 10.0 tests
|
|
--echo #
|
|
|
|
--echo #
|
|
--echo # MDEV-6991 GROUP_MIN_MAX optimization is erroneously applied in some cases
|
|
--echo #
|
|
CREATE TABLE t1 (id INT NOT NULL, a VARCHAR(20)) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1,'2001-01-01');
|
|
INSERT INTO t1 VALUES (1,'2001-01-02');
|
|
INSERT INTO t1 VALUES (1,'2001-01-03');
|
|
INSERT INTO t1 VALUES (1,' 2001-01-04');
|
|
INSERT INTO t1 VALUES (2,'2001-01-01');
|
|
INSERT INTO t1 VALUES (2,'2001-01-02');
|
|
INSERT INTO t1 VALUES (2,'2001-01-03');
|
|
INSERT INTO t1 VALUES (2,' 2001-01-04');
|
|
INSERT INTO t1 VALUES (3,'2001-01-01');
|
|
INSERT INTO t1 VALUES (3,'2001-01-02');
|
|
INSERT INTO t1 VALUES (3,'2001-01-03');
|
|
INSERT INTO t1 VALUES (3,' 2001-01-04');
|
|
INSERT INTO t1 VALUES (4,'2001-01-01');
|
|
INSERT INTO t1 VALUES (4,'2001-01-02');
|
|
INSERT INTO t1 VALUES (4,'2001-01-03');
|
|
INSERT INTO t1 VALUES (4,' 2001-01-04');
|
|
SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>=DATE'2001-01-04' GROUP BY id;
|
|
ALTER TABLE t1 ADD KEY(id,a);
|
|
SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>=DATE'2001-01-04' GROUP BY id;
|
|
DROP TABLE t1;
|
|
|
|
|
|
--echo #
|
|
--echo # End of 10.0 tests
|
|
--echo #
|
|
|
|
|
|
--echo #
|
|
--echo # Start of 10.1 tests
|
|
--echo #
|
|
|
|
--echo #
|
|
--echo # MDEV-6990 GROUP_MIN_MAX optimization is not applied in some cases when it could
|
|
--echo #
|
|
CREATE TABLE t1 (id INT NOT NULL, a DATE, KEY(id,a)) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1,'2001-01-01');
|
|
INSERT INTO t1 VALUES (1,'2001-01-02');
|
|
INSERT INTO t1 VALUES (1,'2001-01-03');
|
|
INSERT INTO t1 VALUES (1,'2001-01-04');
|
|
INSERT INTO t1 VALUES (2,'2001-01-01');
|
|
INSERT INTO t1 VALUES (2,'2001-01-02');
|
|
INSERT INTO t1 VALUES (2,'2001-01-03');
|
|
INSERT INTO t1 VALUES (2,'2001-01-04');
|
|
INSERT INTO t1 VALUES (3,'2001-01-01');
|
|
INSERT INTO t1 VALUES (3,'2001-01-02');
|
|
INSERT INTO t1 VALUES (3,'2001-01-03');
|
|
INSERT INTO t1 VALUES (3,'2001-01-04');
|
|
INSERT INTO t1 VALUES (4,'2001-01-01');
|
|
INSERT INTO t1 VALUES (4,'2001-01-02');
|
|
INSERT INTO t1 VALUES (4,'2001-01-03');
|
|
INSERT INTO t1 VALUES (4,'2001-01-04');
|
|
EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>='2001-01-04' GROUP BY id;
|
|
EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>=20010104.0 GROUP BY id;
|
|
EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>=20010104e0 GROUP BY id;
|
|
SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>='2001-01-04' GROUP BY id;
|
|
SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>=20010104.0 GROUP BY id;
|
|
SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>=20010104e0 GROUP BY id;
|
|
DROP TABLE t1;
|
|
|
|
--echo #
|
|
--echo # MDEV-8229 GROUP_MIN_MAX is erroneously applied for BETWEEN in some cases
|
|
--echo #
|
|
SET NAMES latin1;
|
|
CREATE TABLE t1 (id INT NOT NULL, a VARCHAR(20)) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (1,'2001-01-01');
|
|
INSERT INTO t1 VALUES (1,'2001-01-02');
|
|
INSERT INTO t1 VALUES (1,'2001-01-03');
|
|
INSERT INTO t1 VALUES (1,' 2001-01-04');
|
|
INSERT INTO t1 VALUES (2,'2001-01-01');
|
|
INSERT INTO t1 VALUES (2,'2001-01-02');
|
|
INSERT INTO t1 VALUES (2,'2001-01-03');
|
|
INSERT INTO t1 VALUES (2,' 2001-01-04');
|
|
INSERT INTO t1 VALUES (3,'2001-01-01');
|
|
INSERT INTO t1 VALUES (3,'2001-01-02');
|
|
INSERT INTO t1 VALUES (3,'2001-01-03');
|
|
INSERT INTO t1 VALUES (3,' 2001-01-04');
|
|
INSERT INTO t1 VALUES (4,'2001-01-01');
|
|
INSERT INTO t1 VALUES (4,'2001-01-02');
|
|
INSERT INTO t1 VALUES (4,'2001-01-03');
|
|
INSERT INTO t1 VALUES (4,' 2001-01-04');
|
|
SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN ' 2001-01-04' AND '2001-01-05' GROUP BY id;
|
|
SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN '2001-01-04' AND '2001-01-05' GROUP BY id;
|
|
SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN DATE'2001-01-04' AND DATE'2001-01-05' GROUP BY id;
|
|
SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN DATE'2001-01-04' AND '2001-01-05' GROUP BY id;
|
|
SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN '2001-01-04' AND DATE'2001-01-05' GROUP BY id;
|
|
ALTER TABLE t1 ADD KEY(id,a);
|
|
SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN ' 2001-01-04' AND '2001-01-05' GROUP BY id;
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SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN '2001-01-04' AND '2001-01-05' GROUP BY id;
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SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN DATE'2001-01-04' AND DATE'2001-01-05' GROUP BY id;
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SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN DATE'2001-01-04' AND '2001-01-05' GROUP BY id;
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SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN '2001-01-04' AND DATE'2001-01-05' GROUP BY id;
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EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN ' 2001-01-04' AND '2001-01-05' GROUP BY id;
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EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN '2001-01-04' AND '2001-01-05' GROUP BY id;
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EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN DATE'2001-01-04' AND DATE'2001-01-05' GROUP BY id;
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EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN DATE'2001-01-04' AND '2001-01-05' GROUP BY id;
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EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a BETWEEN '2001-01-04' AND DATE'2001-01-05' GROUP BY id;
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DROP TABLE t1;
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--echo #
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--echo # MIN() optimization didn't work correctly with BETWEEN when using too
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--echo # long strings.
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--echo #
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create table t1 (a varchar(10), key (a)) engine=myisam;
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insert into t1 values("bar"),("Cafe");
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explain select min(a) from t1 where a between "a" and "Cafe2";
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explain select min(a) from t1 where a between "a" and "Cafeeeeeeeeeeeeeeeeeeeeeeeeee";
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explain select min(a) from t1 where a between "abbbbbbbbbbbbbbbbbbbb" and "Cafe2";
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drop table t1;
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--echo #
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--echo # End of 10.1 tests
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--echo #
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