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Merge work:/my/mysql into donna.mysql.fi:/home/my/bk/mysql
Docs/manual.texi: Auto merged sql/ha_innobase.cc: Auto merged sql/sql_select.cc: Auto merged
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@ -2040,8 +2040,7 @@ get_best_combination(JOIN *join)
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if (keyparts == keyuse->keypart)
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{
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keyparts++;
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length+=keyinfo->key_part[keyuse->keypart].length +
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test(keyinfo->key_part[keyuse->keypart].null_bit);
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length+=keyinfo->key_part[keyuse->keypart].store_length;
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}
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}
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keyuse++;
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@ -2241,7 +2240,10 @@ make_join_select(JOIN *join,SQL_SELECT *select,COND *cond)
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make_cond_for_table(cond,join->const_table_map,(table_map) 0);
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DBUG_EXECUTE("where",print_where(const_cond,"constants"););
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if (const_cond && !const_cond->val_int())
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{
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DBUG_PRINT("info",("Found impossible WHERE condition"));
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DBUG_RETURN(1); // Impossible const condition
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}
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}
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used_tables=(select->const_tables=join->const_table_map) | RAND_TABLE_BIT;
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for (uint i=join->const_tables ; i < join->tables ; i++)
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@ -5134,7 +5136,7 @@ test_if_skip_sort_order(JOIN_TAB *tab,ORDER *order,ha_rows select_limit)
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usable_keys=0;
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break;
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}
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usable_keys&=((Item_field*) (*tmp_order->item))->field->part_of_key;
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usable_keys&=((Item_field*) (*tmp_order->item))->field->part_of_sortkey;
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}
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ref_key= -1;
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