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Code Activity

Merged some functions and removed some unused client functions.

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Remember UNION for ALTER TABLE
Added test for if we are supporting transactions.
Don't allow REPLACE to replace a row when we have generated an auto_increment key
Fixed bug when using BLOB keys
Fixed bug in SET @variable=user.
This commit is contained in:
monty@donna.mysql.fi
2001-03-06 15:24:08 +02:00
parent 7b275cf2ec
commit bda3e09935
33 changed files with 561 additions and 351 deletions
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8
sql/sql_select.cc
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@@ -2037,8 +2037,7 @@ get_best_combination(JOIN *join)
if (keyparts == keyuse->keypart)
{
keyparts++;
length+=keyinfo->key_part[keyuse->keypart].length +
test(keyinfo->key_part[keyuse->keypart].null_bit);
length+=keyinfo->key_part[keyuse->keypart].store_length;
}
}
keyuse++;
@@ -2238,7 +2237,10 @@ make_join_select(JOIN *join,SQL_SELECT *select,COND *cond)
make_cond_for_table(cond,join->const_table_map,(table_map) 0);
DBUG_EXECUTE("where",print_where(const_cond,"constants"););
if (const_cond && !const_cond->val_int())
{
DBUG_PRINT("info",("Found impossible WHERE condition"));
DBUG_RETURN(1); // Impossible const condition
}
}
used_tables=(select->const_tables=join->const_table_map) | RAND_TABLE_BIT;
for (uint i=join->const_tables ; i < join->tables ; i++)
@@ -5131,7 +5133,7 @@ test_if_skip_sort_order(JOIN_TAB *tab,ORDER *order,ha_rows select_limit)
usable_keys=0;
break;
}
usable_keys&=((Item_field*) (*tmp_order->item))->field->part_of_key;
usable_keys&=((Item_field*) (*tmp_order->item))->field->part_of_sortkey;
}
ref_key= -1;