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59e7c97dab
New global read lock code Fixed bug in DATETIME with WHERE optimization Made UNION code more general.
43 lines
1.4 KiB
Text
43 lines
1.4 KiB
Text
#
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# Test of unions
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#
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drop table if exists t1,t2,t3;
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CREATE TABLE t1 (a int not null, b char (10) not null);
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insert into t1 values(1,'a'),(2,'b'),(3,'c'),(3,'c');
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CREATE TABLE t2 (a int not null, b char (10) not null);
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insert into t2 values (3,'c'),(4,'d'),(5,'f'),(6,'e');
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select a,b from t1 union select a,b from t2;
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select a,b from t1 union all select a,b from t2;
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select a,b from t1 union all select a,b from t2 order by b;
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select a,b from t1 union all select a,b from t2 union select 7,'g';
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select 0,'#' union select a,b from t1 union all select a,b from t2 union select 7,'gg';
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select a,b from t1 union select a,b from t1;
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select 't1',b,count(*) from t1 group by b UNION select 't2',b,count(*) from t2 group by b;
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# Test some error conditions with UNION
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--error 1215
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explain select a,b from t1 union all select a,b from t2;
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--error 1215
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select a,b from t1 into outfile 'skr' union select a,b from t2;
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--error 1215
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select a,b from t1 order by a union select a,b from t2;
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--error 1216
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create table t3 select a,b from t1 union select a from t2;
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--error 1215
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insert into t3 select a from t1 order by a union select a from t2;
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--error 1216
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select a,b from t1 union select a from t2;
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# Test CREATE, INSERT and REPLACE
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create table t3 select a,b from t1 union all select a,b from t2;
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insert into t3 select a,b from t1 union all select a,b from t2;
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replace into t3 select a,b as c from t1 union all select a,b from t2;
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drop table t1,t2,t3;
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