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Bug #55779: select does not work properly in mysql server

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Version "5.1.42 SUSE MySQL RPM"

When a query was using a DATE or DATETIME value formatted
using different formatting than "yyyy-mm-dd HH:MM:SS", a
query with a greater-or-equal '>=' condition matched only
greater values in an indexed TIMESTAMP column.

The problem was introduced by the fix for the bug 46362
and partially solved (for DATE and DATETIME columns only)
by the fix for the bug 47925.

The stored_field_cmp_to_item function has been modified
to take into account TIMESTAMP columns like we do for
DATE and DATETIME columns.


mysql-test/r/type_timestamp.result:
  Test case for bug #55779.
mysql-test/t/type_timestamp.test:
  Test case for bug #55779.
sql/item.cc:
  Bug #55779: select does not work properly in mysql server
              Version "5.1.42 SUSE MySQL RPM"
  
  The stored_field_cmp_to_item function has been modified
  to take into account TIMESTAMP columns like we do for
  DATE and DATETIME.
This commit is contained in:
Gleb Shchepa 2010-09-13 11:18:35 +04:00
commit daa6d1f4f3
3 changed files with 42 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

6
sql/item.cc
View file

@ -6970,14 +6970,16 @@ int stored_field_cmp_to_item(THD *thd, Field *field, Item *item)
enum_field_types field_type= field->type();
if (field_type == MYSQL_TYPE_DATE || field_type == MYSQL_TYPE_DATETIME)
if (field_type == MYSQL_TYPE_DATE || field_type == MYSQL_TYPE_DATETIME ||
field_type == MYSQL_TYPE_TIMESTAMP)
{
enum_mysql_timestamp_type type= MYSQL_TIMESTAMP_ERROR;
if (field_type == MYSQL_TYPE_DATE)
type= MYSQL_TIMESTAMP_DATE;
if (field_type == MYSQL_TYPE_DATETIME)
if (field_type == MYSQL_TYPE_DATETIME ||
field_type == MYSQL_TYPE_TIMESTAMP)
type= MYSQL_TIMESTAMP_DATETIME;
const char *field_name= field->field_name;