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9ca50fe144
Fixed compiler warnings String results in CREATE ... SELECT are now created as CHAR(0), VARCHAR(X) or TEXT() depending on item->max_length myisam/myisampack.c: Indentation cleanup mysql-test/r/analyse.result: Update results for new varchar handling mysql-test/r/case.result: Update results for new varchar handling mysql-test/r/cast.result: Update results for new varchar handling mysql-test/r/create.result: Update results for new varchar handling mysql-test/r/ctype_mb.result: Update results for new varchar handling mysql-test/r/ctype_ucs.result: Update results for new varchar handling mysql-test/r/ctype_utf8.result: Update results for new varchar handling mysql-test/r/func_group.result: Update results for new varchar handling mysql-test/r/func_str.result: Update results for new varchar handling mysql-test/r/func_system.result: Update results for new varchar handling mysql-test/r/heap.result: Update results for new varchar handling mysql-test/r/heap_hash.result: Update results for new varchar handling mysql-test/r/information_schema.result: Update results for new varchar handling mysql-test/r/metadata.result: Update results for new varchar handling mysql-test/r/null.result: Update results for new varchar handling mysql-test/r/ps_2myisam.result: Update results for new varchar handling mysql-test/r/ps_3innodb.result: Update results for new varchar handling mysql-test/r/ps_4heap.result: Update results for new varchar handling mysql-test/r/ps_5merge.result: Update results for new varchar handling mysql-test/r/ps_6bdb.result: Update results for new varchar handling mysql-test/r/subselect.result: Update results for new varchar handling mysql-test/r/type_ranges.result: Update results for new varchar handling mysql-test/r/union.result: Update results for new varchar handling mysql-test/t/heap.test: Update results for new varchar handling mysql-test/t/type_ranges.test: Added extra test to test generated type for string functions sql/field.cc: Update results for new varchar handling sql/field.h: Update results for new varchar handling We have to use orig_table instead of table as 'table' may point to a new field in the created table sql/field_conv.cc: Update results for new varchar handling sql/ha_heap.cc: Indentation fixes sql/ha_innodb.cc: Update results for new varchar handling sql/item.cc: Update results for new varchar handling Remove compiler warnings String results in CREATE ... SELECT are now created as CHAR(0), VARCHAR(X) or TEXT() depending on item->max_length sql/item.h: Update results for new varchar handling sql/item_func.cc: Update results for new varchar handling String results in CREATE ... SELECT are now created as CHAR(0), VARCHAR(X) or TEXT() depending on item->max_length sql/item_func.h: ANALYZE now return VARCHAR columns sql/procedure.h: Update results for new varchar handling sql/sql_acl.cc: After merge fixes sql/sql_select.cc: Update results for new varchar handling String results in temporary tables are now created as CHAR(0), VARCHAR(X) or TEXT() depending on item->max_length sql/sql_show.cc: After merge fixes sql/sql_table.cc: After merge fixes strings/ctype-tis620.c: After merge fixes tests/client_test.c: Fixed results, as in MySQL 5.0 strings in CREATE ... SELECT are creates VARCHAR columns
156 lines
7.3 KiB
Text
156 lines
7.3 KiB
Text
drop table if exists t1;
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select CASE "b" when "a" then 1 when "b" then 2 END;
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CASE "b" when "a" then 1 when "b" then 2 END
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2
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select CASE "c" when "a" then 1 when "b" then 2 END;
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CASE "c" when "a" then 1 when "b" then 2 END
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NULL
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select CASE "c" when "a" then 1 when "b" then 2 ELSE 3 END;
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CASE "c" when "a" then 1 when "b" then 2 ELSE 3 END
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3
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select CASE BINARY "b" when "a" then 1 when "B" then 2 WHEN "b" then "ok" END;
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CASE BINARY "b" when "a" then 1 when "B" then 2 WHEN "b" then "ok" END
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ok
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select CASE "b" when "a" then 1 when binary "B" then 2 WHEN "b" then "ok" END;
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CASE "b" when "a" then 1 when binary "B" then 2 WHEN "b" then "ok" END
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ok
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select CASE concat("a","b") when concat("ab","") then "a" when "b" then "b" end;
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CASE concat("a","b") when concat("ab","") then "a" when "b" then "b" end
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a
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select CASE when 1=0 then "true" else "false" END;
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CASE when 1=0 then "true" else "false" END
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false
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select CASE 1 when 1 then "one" WHEN 2 then "two" ELSE "more" END;
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CASE 1 when 1 then "one" WHEN 2 then "two" ELSE "more" END
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one
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explain extended select CASE 1 when 1 then "one" WHEN 2 then "two" ELSE "more" END;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select (case 1 when 1 then _latin1'one' when 2 then _latin1'two' else _latin1'more' end) AS `CASE 1 when 1 then "one" WHEN 2 then "two" ELSE "more" END`
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select CASE 2.0 when 1 then "one" WHEN 2.0 then "two" ELSE "more" END;
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CASE 2.0 when 1 then "one" WHEN 2.0 then "two" ELSE "more" END
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two
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select (CASE "two" when "one" then "1" WHEN "two" then "2" END) | 0;
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(CASE "two" when "one" then "1" WHEN "two" then "2" END) | 0
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2
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select (CASE "two" when "one" then 1.00 WHEN "two" then 2.00 END) +0.0;
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(CASE "two" when "one" then 1.00 WHEN "two" then 2.00 END) +0.0
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2.00
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select case 1/0 when "a" then "true" else "false" END;
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case 1/0 when "a" then "true" else "false" END
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false
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select case 1/0 when "a" then "true" END;
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case 1/0 when "a" then "true" END
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NULL
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select (case 1/0 when "a" then "true" END) | 0;
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(case 1/0 when "a" then "true" END) | 0
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NULL
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select (case 1/0 when "a" then "true" END) + 0.0;
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(case 1/0 when "a" then "true" END) + 0.0
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NULL
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select case when 1>0 then "TRUE" else "FALSE" END;
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case when 1>0 then "TRUE" else "FALSE" END
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TRUE
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select case when 1<0 then "TRUE" else "FALSE" END;
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case when 1<0 then "TRUE" else "FALSE" END
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FALSE
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create table t1 (a int);
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insert into t1 values(1),(2),(3),(4);
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select case a when 1 then 2 when 2 then 3 else 0 end as fcase, count(*) from t1 group by fcase;
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fcase count(*)
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0 2
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2 1
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3 1
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explain extended select case a when 1 then 2 when 2 then 3 else 0 end as fcase, count(*) from t1 group by fcase;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using temporary; Using filesort
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Warnings:
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Note 1003 select (case `test`.`t1`.`a` when 1 then 2 when 2 then 3 else 0 end) AS `fcase`,count(0) AS `count(*)` from `test`.`t1` group by (case `test`.`t1`.`a` when 1 then 2 when 2 then 3 else 0 end)
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select case a when 1 then "one" when 2 then "two" else "nothing" end as fcase, count(*) from t1 group by fcase;
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fcase count(*)
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nothing 2
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one 1
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two 1
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drop table t1;
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create table t1 (row int not null, col int not null, val varchar(255) not null);
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insert into t1 values (1,1,'orange'),(1,2,'large'),(2,1,'yellow'),(2,2,'medium'),(3,1,'green'),(3,2,'small');
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select max(case col when 1 then val else null end) as color from t1 group by row;
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color
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orange
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yellow
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green
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drop table t1;
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SET NAMES latin1;
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CREATE TABLE t1 SELECT
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CASE WHEN 1 THEN _latin1'a' COLLATE latin1_danish_ci ELSE _latin1'a' END AS c1,
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CASE WHEN 1 THEN _latin1'a' ELSE _latin1'a' COLLATE latin1_danish_ci END AS c2,
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CASE WHEN 1 THEN 'a' ELSE 1 END AS c3,
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CASE WHEN 1 THEN 1 ELSE 'a' END AS c4,
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CASE WHEN 1 THEN 'a' ELSE 1.0 END AS c5,
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CASE WHEN 1 THEN 1.0 ELSE 'a' END AS c6,
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CASE WHEN 1 THEN 1 ELSE 1.0 END AS c7,
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CASE WHEN 1 THEN 1.0 ELSE 1 END AS c8,
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CASE WHEN 1 THEN 1.0 END AS c9
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;
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` varchar(1) character set latin1 collate latin1_danish_ci NOT NULL default '',
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`c2` varchar(1) character set latin1 collate latin1_danish_ci NOT NULL default '',
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`c3` varchar(1) NOT NULL default '',
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`c4` varchar(1) NOT NULL default '',
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`c5` varchar(3) NOT NULL default '',
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`c6` varchar(3) NOT NULL default '',
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`c7` double(3,1) NOT NULL default '0.0',
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`c8` double(3,1) NOT NULL default '0.0',
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`c9` double(3,1) default NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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DROP TABLE t1;
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SELECT CASE
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WHEN 1
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THEN _latin1'a' COLLATE latin1_danish_ci
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ELSE _latin1'a' COLLATE latin1_swedish_ci
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END;
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ERROR HY000: Illegal mix of collations (latin1_danish_ci,EXPLICIT) and (latin1_swedish_ci,EXPLICIT) for operation 'case'
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SELECT CASE _latin1'a' COLLATE latin1_general_ci
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WHEN _latin1'a' COLLATE latin1_danish_ci THEN 1
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WHEN _latin1'a' COLLATE latin1_swedish_ci THEN 2
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END;
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ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT), (latin1_danish_ci,EXPLICIT), (latin1_swedish_ci,EXPLICIT) for operation 'case'
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SELECT
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CASE _latin1'a' COLLATE latin1_general_ci WHEN _latin1'A' THEN '1' ELSE 2 END,
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CASE _latin1'a' COLLATE latin1_bin WHEN _latin1'A' THEN '1' ELSE 2 END,
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CASE _latin1'a' WHEN _latin1'A' COLLATE latin1_swedish_ci THEN '1' ELSE 2 END,
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CASE _latin1'a' WHEN _latin1'A' COLLATE latin1_bin THEN '1' ELSE 2 END
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;
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CASE _latin1'a' COLLATE latin1_general_ci WHEN _latin1'A' THEN '1' ELSE 2 END CASE _latin1'a' COLLATE latin1_bin WHEN _latin1'A' THEN '1' ELSE 2 END CASE _latin1'a' WHEN _latin1'A' COLLATE latin1_swedish_ci THEN '1' ELSE 2 END CASE _latin1'a' WHEN _latin1'A' COLLATE latin1_bin THEN '1' ELSE 2 END
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1 2 1 2
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CREATE TABLE t1 SELECT COALESCE(_latin1'a',_latin2'a');
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ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2_general_ci,COERCIBLE) for operation 'coalesce'
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CREATE TABLE t1 SELECT COALESCE('a' COLLATE latin1_swedish_ci,'b' COLLATE latin1_bin);
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ERROR HY000: Illegal mix of collations (latin1_swedish_ci,EXPLICIT) and (latin1_bin,EXPLICIT) for operation 'coalesce'
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CREATE TABLE t1 SELECT
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COALESCE(1), COALESCE(1.0),COALESCE('a'),
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COALESCE(1,1.0), COALESCE(1,'1'),COALESCE(1.1,'1'),
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COALESCE('a' COLLATE latin1_bin,'b');
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explain extended SELECT
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COALESCE(1), COALESCE(1.0),COALESCE('a'),
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COALESCE(1,1.0), COALESCE(1,'1'),COALESCE(1.1,'1'),
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COALESCE('a' COLLATE latin1_bin,'b');
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select coalesce(1) AS `COALESCE(1)`,coalesce(1.0) AS `COALESCE(1.0)`,coalesce(_latin1'a') AS `COALESCE('a')`,coalesce(1,1.0) AS `COALESCE(1,1.0)`,coalesce(1,_latin1'1') AS `COALESCE(1,'1')`,coalesce(1.1,_latin1'1') AS `COALESCE(1.1,'1')`,coalesce((_latin1'a' collate latin1_bin),_latin1'b') AS `COALESCE('a' COLLATE latin1_bin,'b')`
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`COALESCE(1)` int(1) NOT NULL default '0',
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`COALESCE(1.0)` double(3,1) NOT NULL default '0.0',
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`COALESCE('a')` varchar(1) NOT NULL default '',
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`COALESCE(1,1.0)` double(3,1) NOT NULL default '0.0',
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`COALESCE(1,'1')` varchar(1) NOT NULL default '',
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`COALESCE(1.1,'1')` varchar(3) NOT NULL default '',
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`COALESCE('a' COLLATE latin1_bin,'b')` varchar(1) character set latin1 collate latin1_bin NOT NULL default ''
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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DROP TABLE t1;
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