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mysql-test/t/count_distinct2.test: make default NULL in tree->MyISAM test to make sure restore_record() does not give a bad surprise sql/item_sum.cc: cleanup according to Monty's suggestions sql/item_sum.h: cleanup according to Monty's suggestions
74 lines
1.7 KiB
Text
74 lines
1.7 KiB
Text
create table t1(n1 int, n2 int, s char(20), vs varchar(20), t text);
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insert into t1 values (1,11, 'one','eleven', 'eleven'),
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(1,11, 'one','eleven', 'eleven'),
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(2,11, 'two','eleven', 'eleven'),
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(2,12, 'two','twevle', 'twelve'),
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(2,13, 'two','thirteen', 'foo'),
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(2,13, 'two','thirteen', 'foo'),
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(2,13, 'two','thirteen', 'bar'),
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(NULL,13, 'two','thirteen', 'bar'),
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(2,NULL, 'two','thirteen', 'bar'),
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(2,13, NULL,'thirteen', 'bar'),
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(2,13, 'two',NULL, 'bar'),
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(2,13, 'two','thirteen', NULL);
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select distinct n1 from t1;
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select count(distinct n1) from t1;
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select distinct n2 from t1;
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select count(distinct n2) from t1;
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select distinct s from t1;
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select count(distinct s) from t1;
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select distinct vs from t1;
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select count(distinct vs) from t1;
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select distinct t from t1;
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select count(distinct t) from t1;
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select distinct n1,n2 from t1;
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select count(distinct n1,n2) from t1;
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select distinct n1,s from t1;
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select count(distinct n1,s) from t1;
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select distinct s,n1,vs from t1;
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select count(distinct s,n1,vs) from t1;
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select distinct s,t from t1;
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select count(distinct s,t) from t1;
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select count(distinct n1), count(distinct n2) from t1;
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select count(distinct n2), n1 from t1 group by n1;
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drop table t1;
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# test the converstion from tree to MyISAM
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create table t1 (n int default NULL);
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let $1=5000;
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while ($1)
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{
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eval insert into t1 values($1);
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dec $1;
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}
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flush status;
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select count(distinct n) from t1;
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show status like 'Created_tmp_disk_tables';
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drop table t1;
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#test conversion from heap to MyISAM
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create table t1 (s text);
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let $1=5000;
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while ($1)
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{
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eval insert into t1 values('$1');
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dec $1;
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}
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flush status;
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select count(distinct s) from t1;
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show status like 'Created_tmp_disk_tables';
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drop table t1;
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