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Fix for Bug#32538: View definition picks up character set,

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but not collation.

The problem here was that text literals in a view were always
dumped with character set introducer. That lead to loosing
collation information.

The fix is to dump character set introducer only if it was
in the original query. That is now possible because there 
is no problem any more of loss of character set of string
literals in views -- after WL#4052 the view is dumped 
in the original character set.
This commit is contained in:
anozdrin/alik@quad.
2008-02-12 22:09:16 +03:00
parent 931f793c5c
commit d36d243d3d
37 changed files with 337 additions and 160 deletions
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4
mysql-test/r/null.result
View File

@ -6,7 +6,7 @@ explain extended select null,\N,isnull(null),isnull(1/0),isnull(1/0 = null),ifnu
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select NULL AS `NULL`,NULL AS `NULL`,isnull(NULL) AS `isnull(null)`,isnull((1 / 0)) AS `isnull(1/0)`,isnull(((1 / 0) = NULL)) AS `isnull(1/0 = null)`,ifnull(NULL,1) AS `ifnull(null,1)`,ifnull(NULL,_latin1'TRUE') AS `ifnull(null,"TRUE")`,ifnull(_latin1'TRUE',_latin1'ERROR') AS `ifnull("TRUE","ERROR")`,isnull((1 / 0)) AS `1/0 is null`,(1 is not null) AS `1 is not null`
Note 1003 select NULL AS `NULL`,NULL AS `NULL`,isnull(NULL) AS `isnull(null)`,isnull((1 / 0)) AS `isnull(1/0)`,isnull(((1 / 0) = NULL)) AS `isnull(1/0 = null)`,ifnull(NULL,1) AS `ifnull(null,1)`,ifnull(NULL,'TRUE') AS `ifnull(null,"TRUE")`,ifnull('TRUE','ERROR') AS `ifnull("TRUE","ERROR")`,isnull((1 / 0)) AS `1/0 is null`,(1 is not null) AS `1 is not null`
select 1 | NULL,1 & NULL,1+NULL,1-NULL;
1 | NULL 1 & NULL 1+NULL 1-NULL
NULL NULL NULL NULL
@ -49,7 +49,7 @@ explain extended select inet_ntoa(null),inet_aton(null),inet_aton("122.256"),ine
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select inet_ntoa(NULL) AS `inet_ntoa(null)`,inet_aton(NULL) AS `inet_aton(null)`,inet_aton(_latin1'122.256') AS `inet_aton("122.256")`,inet_aton(_latin1'122.226.') AS `inet_aton("122.226.")`,inet_aton(_latin1'') AS `inet_aton("")`
Note 1003 select inet_ntoa(NULL) AS `inet_ntoa(null)`,inet_aton(NULL) AS `inet_aton(null)`,inet_aton('122.256') AS `inet_aton("122.256")`,inet_aton('122.226.') AS `inet_aton("122.226.")`,inet_aton('') AS `inet_aton("")`
create table t1 (x int);
insert into t1 values (null);
select * from t1 where x != 0;