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mysql-test/r/row.result: Correct NULL handling in row comporison mysql-test/t/row.test: Correct NULL handling in row comporison (BUG#12509) sql/item_cmpfunc.cc: stop on NULL comparison only if it is allowed sql/item_cmpfunc.h: support optimisation in case of processing WHERE/HAVING, where NULL and FALSE are equal
94 lines
3.3 KiB
Text
94 lines
3.3 KiB
Text
# Initialise
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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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select (1,2,3) IN ((3,2,3), (1,2,3), (1,3,3));
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select row(10,2,3) IN (row(3,2,3), row(1,2,3), row(1,3,3));
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select row(1,2,3) IN (row(3,NULL,3), row(1,2,3), row(1,3,3));
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select row(10,2,3) IN (row(3,NULL,3), row(1,2,3), row(1,3,3));
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--disable_ps_warnings
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select row('a',1.5,3) IN (row(1,2,3), row('a',1.5,3), row('a','a','a'));
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select row('a',0,3) IN (row(3,2,3), row('a','a','3'), row(1,3,3));
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--enable_ps_warnings
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select row('a',0,3) IN (row(3,2,3), row('a','0','3'), row(1,3,3));
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select row('a',1.5,3) IN (row(3,NULL,3), row('a',1.5,3), row(1,3,3));
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select row('b',1.5,3) IN (row(3,NULL,3), row('a',1.5,3), row(1,3,3));
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select row('b',1.5,3) IN (row('b',NULL,3), row('a',1.5,3), row(1,3,3));
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select row('b',1.5,3) IN (row('b',NULL,4), row('a',1.5,3), row(1,3,3));
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select (1,2,(3,4)) IN ((3,2,(3,4)), (1,2,(3,4)));
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-- error 1241
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select row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,4));
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select row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,row(3,NULL)));
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explain extended select row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,row(3,NULL)));
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SELECT (1,2,3)=(0,NULL,3);
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SELECT (1,2,3)=(1,NULL,3);
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# here's something for Sanja to fix :)
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SELECT (1,2,3)=(1,NULL,0);
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SELECT ROW(1,2,3)=ROW(1,2,3);
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SELECT ROW(2,2,3)=ROW(1+1,2,3);
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SELECT ROW(1,2,3)=ROW(1+1,2,3);
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SELECT ROW(1,2,3)<ROW(1+1,2,3);
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SELECT ROW(1,2,3)>ROW(1+1,2,3);
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SELECT ROW(1,2,3)<=ROW(1+1,2,3);
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SELECT ROW(1,2,3)>=ROW(1+1,2,3);
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SELECT ROW(1,2,3)<>ROW(1+1,2,3);
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SELECT ROW(NULL,2,3)=ROW(NULL,2,3);
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SELECT ROW(NULL,2,3)<=>ROW(NULL,2,3);
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SELECT ROW(1,2,ROW(3,4,5))=ROW(1,2,ROW(3,4,5));
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SELECT ROW('test',2,3.33)=ROW('test',2,3.33);
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-- error 1241
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SELECT ROW('test',2,3.33)=ROW('test',2,3.33,4);
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SELECT ROW('test',2,ROW(3,33))=ROW('test',2,ROW(3,33));
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SELECT ROW('test',2,ROW(3,33))=ROW('test',2,ROW(3,3));
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SELECT ROW('test',2,ROW(3,33))=ROW('test',2,ROW(3,NULL));
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-- error 1241
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SELECT ROW('test',2,ROW(3,33))=ROW('test',2,4);
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create table t1 ( a int, b int, c int);
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insert into t1 values (1,2,3), (2,3,1), (3,2,1), (1,2,NULL);
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select * from t1 where ROW(1,2,3)=ROW(a,b,c);
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select * from t1 where ROW(0,2,3)=ROW(a,b,c);
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select * from t1 where ROW(1,2,3)<ROW(a,b,c);
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select ROW(a,2,3) IN(row(1,b,c), row(2,3,1)) from t1;
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select ROW(c,2,3) IN(row(1,b,a), row(2,3,1)) from t1;
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select ROW(a,b,c) IN(row(1,2,3), row(3,2,1)) from t1;
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select ROW(1,2,3) IN(row(a,b,c), row(1,2,3)) from t1;
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drop table t1;
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-- error 1241
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select ROW(1,1);
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create table t1 (i int);
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-- error 1241
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select 1 from t1 where ROW(1,1);
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-- error 1241
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select count(*) from t1 order by ROW(1,1);
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-- error 1241
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select count(*) from t1 having (1,1) order by i;
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drop table t1;
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create table t1 (a int, b int);
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insert into t1 values (1, 4);
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insert into t1 values (10, 40);
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insert into t1 values (1, 4);
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insert into t1 values (10, 43);
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insert into t1 values (1, 4);
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insert into t1 values (10, 41);
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insert into t1 values (1, 4);
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insert into t1 values (10, 43);
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insert into t1 values (1, 4);
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select a, MAX(b), (1, MAX(b)) = (1, 4) from t1 group by a;
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drop table t1;
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SELECT ROW(2,10) <=> ROW(3,4);
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SELECT ROW(NULL,10) <=> ROW(3,NULL);
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# End of 4.1 tests
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#
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# Correct NULL handling in row comporison (BUG#12509)
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#
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SELECT ROW(1,1,1) = ROW(1,1,1) as `1`, ROW(1,1,1) = ROW(1,2,1) as `0`, ROW(1,NULL,1) = ROW(2,2,1) as `0`, ROW(1,NULL,1) = ROW(1,2,2) as `0`, ROW(1,NULL,1) = ROW(1,2,1) as `null` ;
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select row(NULL,1)=(2,0);
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