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Bug #27921 View ignores precision for CAST()

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Item_decimal_typecast::print properly implemented


mysql-test/r/view.result:
  Bug #27921 View ignores precision for CAST()
  test result
mysql-test/t/view.test:
  Bug #27921 View ignores precision for CAST()
  test case
sql/field.cc:
  zero decimals handling unified
sql/item_create.cc:
  Bug #27921 View ignores precision for CAST()
  create_func_cast parameters changed, zero precision handling unified
sql/item_create.h:
  Bug #27921 View ignores precision for CAST()
  create_func_cast parameters changed
sql/item_func.cc:
  Bug #27921 View ignores precision for CAST() 
  Item_decimal_typecast::print properly implemented
sql/item_func.h:
  Bug #27921 View ignores precision for CAST()
  max_length counting fixed
sql/my_decimal.h:
  Bug #27921 View ignores precision for CAST()
  my_decimal_trim() implemented to unify zero precision handling
sql/sql_yacc.yy:
  Bug #27921 View ignores precision for CAST()
  create_func_cast calls simplified
This commit is contained in:
unknown
2007-05-10 00:17:21 +05:00
parent 187ccf4bca
commit f2a52dd0f0
9 changed files with 75 additions and 20 deletions
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15
mysql-test/r/view.result
View File

@ -1789,7 +1789,7 @@ drop table t1;
create view v1 as select cast(1 as decimal);
select * from v1;
cast(1 as decimal)
1.00
1
drop view v1;
create table t1(f1 int);
create table t2(f2 int);
@ -3354,4 +3354,17 @@ id select_type table type possible_keys key key_len ref rows Extra
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL Using filesort
DROP VIEW v1;
DROP TABLE t1;
CREATE VIEW v1 AS SELECT CAST( 1.23456789 AS DECIMAL( 7,5 ) ) AS col;
SELECT * FROM v1;
col
1.23457
DESCRIBE v1;
Field Type Null Key Default Extra
col decimal(7,5) NO 0.00000
DROP VIEW v1;
CREATE VIEW v1 AS SELECT CAST(1.23456789 AS DECIMAL(8,0)) AS col;
SHOW CREATE VIEW v1;
View Create View
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select cast(1.23456789 as decimal(8,0)) AS `col`
DROP VIEW v1;
End of 5.0 tests.

12
mysql-test/t/view.test
View File

@ -3221,4 +3221,16 @@ EXPLAIN SELECT * FROM t1 UNION SELECT * FROM v1 ORDER BY a;
DROP VIEW v1;
DROP TABLE t1;
#
# Bug #27921 View ignores precision for CAST()
#
CREATE VIEW v1 AS SELECT CAST( 1.23456789 AS DECIMAL( 7,5 ) ) AS col;
SELECT * FROM v1;
DESCRIBE v1;
DROP VIEW v1;
CREATE VIEW v1 AS SELECT CAST(1.23456789 AS DECIMAL(8,0)) AS col;
SHOW CREATE VIEW v1;
DROP VIEW v1;
--echo End of 5.0 tests.