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Bug#27127, Incorrect behaviour of timestamp column with DEFAULT CURRENT_TIMESTAMP

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correct the bitmap_set_bit when a field is timestamp and described 
with default CURRENT_TIMESTAMP or on update CURRENT_TIMESTAMP,
then it will reduce a little time cost when the field doesnot need 
to write.
This commit is contained in:
Justin.He/justin.he@dev3-240.dev.cn.tlan 2007-03-22 12:16:52 +08:00
parent 1bcac85f04
commit 0bbae24750
1 changed files with 4 additions and 2 deletions
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2
sql/sql_update.cc
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@ -201,6 +201,8 @@ int mysql_update(THD *thd,
table->timestamp_field_type= TIMESTAMP_NO_AUTO_SET; table->timestamp_field_type= TIMESTAMP_NO_AUTO_SET;
else else
{ {
if (table->timestamp_field_type == TIMESTAMP_AUTO_SET_ON_UPDATE ||
table->timestamp_field_type == TIMESTAMP_AUTO_SET_ON_BOTH)
bitmap_set_bit(table->write_set, bitmap_set_bit(table->write_set,
table->timestamp_field->field_index); table->timestamp_field->field_index);
} }