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between range optimization bug (between with const on one end only)

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unknown
2003-08-08 19:13:27 +02:00
parent 2e6d30072c
commit a71ef9e643
2 changed files with 9 additions and 6 deletions
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13
sql/opt_range.cc
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@ -794,18 +794,15 @@ static SEL_TREE *get_mm_tree(PARAM *param,COND *cond)
DBUG_RETURN(new SEL_TREE(SEL_TREE::ALWAYS));
DBUG_RETURN(new SEL_TREE(SEL_TREE::IMPOSSIBLE));
}
table_map ref_tables=cond->used_tables();
if (ref_tables & ~(param->prev_tables | param->read_tables |
param->current_table))
DBUG_RETURN(0); // Can't be calculated yet
if (cond->type() != Item::FUNC_ITEM)
{ // Should be a field
if (ref_tables & param->current_table)
DBUG_RETURN(0);
DBUG_RETURN(new SEL_TREE(SEL_TREE::MAYBE));
}
if (!(ref_tables & param->current_table))
DBUG_RETURN(new SEL_TREE(SEL_TREE::MAYBE)); // This may be false or true
Item_func *cond_func= (Item_func*) cond;
if (cond_func->select_optimize() == Item_func::OPTIMIZE_NONE)
DBUG_RETURN(0); // Can't be calculated
@ -847,6 +844,12 @@ static SEL_TREE *get_mm_tree(PARAM *param,COND *cond)
DBUG_RETURN(0); // Can't optimize this IN
}
if (ref_tables & ~(param->prev_tables | param->read_tables |
param->current_table))
DBUG_RETURN(0); // Can't be calculated yet
if (!(ref_tables & param->current_table))
DBUG_RETURN(new SEL_TREE(SEL_TREE::MAYBE)); // This may be false or true
/* check field op const */
/* btw, ft_func's arguments()[0] isn't FIELD_ITEM. SerG*/
if (cond_func->arguments()[0]->type() == Item::FIELD_ITEM)