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Bug #31562: HAVING and lower case

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The columns in HAVING can reference the GROUP BY and 
SELECT columns. There can be "table" prefixes when
referencing these columns. And these "table" prefixes
in HAVING use the table alias if available.
This means that table aliases are subject to the same
storage rules as table names and are dependent on 
lower_case_table_names in the same way as the table 
names are.
Fixed by :
1. Treating table aliases as table names
and make them lowercase when printing out the SQL
statement for view persistence.
2. Using case insensitive comparison for table 
aliases when requested by lower_case_table_names


mysql-test/r/lowercase_view.result:
  Bug #31562: test case
mysql-test/t/lowercase_view.test:
  Bug #31562: test case
sql/item.cc:
  Bug #31562: lower_case_table_name contious comparison
  when searching in GROUP BY
sql/sql_base.cc:
  Bug #31562: lower_case_table_name contious comparison
  when searching in SELECT
sql/sql_select.cc:
  Bug #31562: treat table aliases as table names
  and make them lowercase when printing
This commit is contained in:
unknown
2007-11-13 11:39:52 +02:00
parent a5d7fa746f
commit 170ae2d252
5 changed files with 59 additions and 5 deletions
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21
mysql-test/r/lowercase_view.result
View File

@ -119,7 +119,7 @@ create table t1Aa (col1 int);
create view v1Aa as select col1 from t1Aa as AaA;
show create view v1AA;
View Create View
v1aa CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1aa` AS select `aaa`.`col1` AS `col1` from `t1aa` `AaA`
v1aa CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1aa` AS select `aaa`.`col1` AS `col1` from `t1aa` `aaa`
drop view v1AA;
select Aaa.col1 from t1Aa as AaA;
col1
@ -128,6 +128,23 @@ drop view v1AA;
create view v1Aa as select AaA.col1 from t1Aa as AaA;
show create view v1AA;
View Create View
v1aa CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1aa` AS select `aaa`.`col1` AS `col1` from `t1aa` `AaA`
v1aa CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1aa` AS select `aaa`.`col1` AS `col1` from `t1aa` `aaa`
drop view v1AA;
drop table t1Aa;
CREATE TABLE t1 (a int, b int);
select X.a from t1 AS X group by X.b having (X.a = 1);
a
select X.a from t1 AS X group by X.b having (x.a = 1);
a
select X.a from t1 AS X group by X.b having (x.b = 1);
a
CREATE OR REPLACE VIEW v1 AS
select X.a from t1 AS X group by X.b having (X.a = 1);
SHOW CREATE VIEW v1;
View Create View
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `x`.`a` AS `a` from `t1` `x` group by `x`.`b` having (`x`.`a` = 1)
SELECT * FROM v1;
a
DROP VIEW v1;
DROP TABLE t1;
End of 5.0 tests.

23
mysql-test/t/lowercase_view.test
View File

@ -138,3 +138,26 @@ create view v1Aa as select AaA.col1 from t1Aa as AaA;
show create view v1AA;
drop view v1AA;
drop table t1Aa;
#
# Bug #31562: HAVING and lower case
#
CREATE TABLE t1 (a int, b int);
select X.a from t1 AS X group by X.b having (X.a = 1);
select X.a from t1 AS X group by X.b having (x.a = 1);
select X.a from t1 AS X group by X.b having (x.b = 1);
CREATE OR REPLACE VIEW v1 AS
select X.a from t1 AS X group by X.b having (X.a = 1);
SHOW CREATE VIEW v1;
SELECT * FROM v1;
DROP VIEW v1;
DROP TABLE t1;
--echo End of 5.0 tests.