diff options
Diffstat (limited to 'sql/key.cc')
| -rw-r--r-- | sql/key.cc | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sql/key.cc b/sql/key.cc index df3f0fe25d5..8678202922e 100644 --- a/sql/key.cc +++ b/sql/key.cc @@ -243,7 +243,10 @@ void key_unpack(String *to,TABLE *table,uint idx) } -/* Return 1 if any field in a list is part of key */ +/* + Return 1 if any field in a list is part of key or the key uses a field + that is automaticly updated (like a timestamp) +*/ bool check_if_key_used(TABLE *table, uint idx, List<Item> &fields) { @@ -255,6 +258,10 @@ bool check_if_key_used(TABLE *table, uint idx, List<Item> &fields) key_part++) { Item_field *field; + + if (key_part->field == table->timestamp_field) + return 1; // Can't be used for update + f.rewind(); while ((field=(Item_field*) f++)) { |