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When using index for group by and range access the server isolates a set of ranges based on the conditions over the key parts of the index used. Then it uses only the ranges over the GROUP BY fields to jump from one group to another. Since the GROUP BY fields may form a prefix over the index, we may use only a prefix of the ranges produced by the range optimizer. Each range contains a notion on whether it includes its border values. The problem is that when using a range prefix, the last range is open because it assumes that there is a range on the next keypart. Thus when we use a prefix range as it is, it excludes all border values. The solution is when ignoring the suffix of the range conditions (to jump over the GROUP BY prefix only) the server must change the remaining intervals so they always contain their borders, e.g. if the whole range was : (1,-inf) <= (<group_by_col>,<min_max_arg_col>) < (1, 3) we must make (1) <= (<group_by_col>) <= (1) because (a,b) < (c1,c2) means : a < c1 OR (a = c1 AND b < c2).
812 lines
43 KiB
Text
812 lines
43 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(64) 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 one more
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-- 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(64) 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;
|
|
explain select a1,min(c),max(c) from t1 where a1 >= 'b' group by a1,a2,b;
|
|
explain select a1, max(c) from t1 where a1 in ('a','b','d') group by a1,a2,b;
|
|
|
|
--replace_column 9 #
|
|
explain select a1,a2,b, 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 < '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;
|
|
|
|
-- 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;
|
|
|
|
|
|
-- 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 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 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 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 select ord(a1) + 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 ord(a1) + 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 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 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 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 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 select a1,a2,count(a2) from t1 where (a1 > 'a') group by a1,a2,b;
|
|
explain select sum(ord(a1)) from t1 where (a1 > 'a') group by a1,a2,b;
|
|
|
|
|
|
#
|
|
# 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';
|
|
|
|
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 '', PRIMARY 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, PRIMARY KEY (a,b), KEY b (b));
|
|
INSERT INTO t1 VALUES (1,1),(1,2);
|
|
|
|
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;
|