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Fixed handling of NOT LIKE after Item_func::NOTLIKE_FUNC has been removed

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This commit is contained in:
mskold@mysql.com
2005-08-01 11:50:43 +02:00
parent ceb75aed65
commit 0f0fb8a05a
2 changed files with 99 additions and 35 deletions
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47
sql/ha_ndbcluster.cc
View File

@@ -7010,7 +7010,7 @@ ha_ndbcluster::build_scan_filter_predicate(Ndb_cond * &cond,
switch ((negated) ?
Ndb_item::negate(cond->ndb_item->qualification.function_type)
: cond->ndb_item->qualification.function_type) {
case Item_func::EQ_FUNC:
case NDB_EQ_FUNC:
{
if (!value || !field) break;
// Save value in right format for the field type
@@ -7024,7 +7024,7 @@ ha_ndbcluster::build_scan_filter_predicate(Ndb_cond * &cond,
cond= cond->next->next->next;
DBUG_RETURN(0);
}
case Item_func::NE_FUNC:
case NDB_NE_FUNC:
{
if (!value || !field) break;
// Save value in right format for the field type
@@ -7038,7 +7038,7 @@ ha_ndbcluster::build_scan_filter_predicate(Ndb_cond * &cond,
cond= cond->next->next->next;
DBUG_RETURN(0);
}
case Item_func::LT_FUNC:
case NDB_LT_FUNC:
{
if (!value || !field) break;
// Save value in right format for the field type
@@ -7064,7 +7064,7 @@ ha_ndbcluster::build_scan_filter_predicate(Ndb_cond * &cond,
cond= cond->next->next->next;
DBUG_RETURN(0);
}
case Item_func::LE_FUNC:
case NDB_LE_FUNC:
{
if (!value || !field) break;
// Save value in right format for the field type
@@ -7090,7 +7090,7 @@ ha_ndbcluster::build_scan_filter_predicate(Ndb_cond * &cond,
cond= cond->next->next->next;
DBUG_RETURN(0);
}
case Item_func::GE_FUNC:
case NDB_GE_FUNC:
{
if (!value || !field) break;
// Save value in right format for the field type
@@ -7116,7 +7116,7 @@ ha_ndbcluster::build_scan_filter_predicate(Ndb_cond * &cond,
cond= cond->next->next->next;
DBUG_RETURN(0);
}
case Item_func::GT_FUNC:
case NDB_GT_FUNC:
{
if (!value || !field) break;
// Save value in right format for the field type
@@ -7142,7 +7142,7 @@ ha_ndbcluster::build_scan_filter_predicate(Ndb_cond * &cond,
cond= cond->next->next->next;
DBUG_RETURN(0);
}
case Item_func::LIKE_FUNC:
case NDB_LIKE_FUNC:
{
if (!value || !field) break;
if ((value->qualification.value_type != Item::STRING_ITEM) &&
@@ -7161,7 +7161,26 @@ ha_ndbcluster::build_scan_filter_predicate(Ndb_cond * &cond,
cond= cond->next->next->next;
DBUG_RETURN(0);
}
case Item_func::ISNULL_FUNC:
case NDB_NOTLIKE_FUNC:
{
if (!value || !field) break;
if ((value->qualification.value_type != Item::STRING_ITEM) &&
(value->qualification.value_type != Item::VARBIN_ITEM))
break;
// Save value in right format for the field type
value->save_in_field(field);
DBUG_PRINT("info", ("Generating NOTLIKE filter: notlike(%d,%s,%d)",
field->get_field_no(), value->get_val(),
value->pack_length()));
if (filter->cmp(NdbScanFilter::COND_NOT_LIKE,
field->get_field_no(),
value->get_val(),
value->pack_length()) == -1)
DBUG_RETURN(1);
cond= cond->next->next->next;
DBUG_RETURN(0);
}
case NDB_ISNULL_FUNC:
if (!field)
break;
DBUG_PRINT("info", ("Generating ISNULL filter"));
@@ -7169,7 +7188,7 @@ ha_ndbcluster::build_scan_filter_predicate(Ndb_cond * &cond,
DBUG_RETURN(1);
cond= cond->next->next;
DBUG_RETURN(0);
case Item_func::ISNOTNULL_FUNC:
case NDB_ISNOTNULL_FUNC:
{
if (!field)
break;
@@ -7206,7 +7225,7 @@ ha_ndbcluster::build_scan_filter_group(Ndb_cond* &cond, NdbScanFilter *filter)
case NDB_FUNCTION:
{
switch (cond->ndb_item->qualification.function_type) {
case Item_func::COND_AND_FUNC:
case NDB_COND_AND_FUNC:
{
level++;
DBUG_PRINT("info", ("Generating %s group %u", (negated)?"NAND":"AND",
@@ -7218,7 +7237,7 @@ ha_ndbcluster::build_scan_filter_group(Ndb_cond* &cond, NdbScanFilter *filter)
cond= cond->next;
break;
}
case Item_func::COND_OR_FUNC:
case NDB_COND_OR_FUNC:
{
level++;
DBUG_PRINT("info", ("Generating %s group %u", (negated)?"NOR":"OR",
@@ -7230,7 +7249,7 @@ ha_ndbcluster::build_scan_filter_group(Ndb_cond* &cond, NdbScanFilter *filter)
cond= cond->next;
break;
}
case Item_func::NOT_FUNC:
case NDB_NOT_FUNC:
{
DBUG_PRINT("info", ("Generating negated query"));
cond= cond->next;
@@ -7273,8 +7292,8 @@ ha_ndbcluster::build_scan_filter(Ndb_cond * &cond, NdbScanFilter *filter)
switch (cond->ndb_item->type) {
case NDB_FUNCTION:
switch (cond->ndb_item->qualification.function_type) {
case Item_func::COND_AND_FUNC:
case Item_func::COND_OR_FUNC:
case NDB_COND_AND_FUNC:
case NDB_COND_OR_FUNC:
simple_cond= FALSE;
break;
default:

85
sql/ha_ndbcluster.h
View File

@@ -72,10 +72,28 @@ typedef enum ndb_item_type {
NDB_END_COND = 3 // End marker for condition group
} NDB_ITEM_TYPE;
typedef enum ndb_func_type {
NDB_EQ_FUNC = 0,
NDB_NE_FUNC = 1,
NDB_LT_FUNC = 2,
NDB_LE_FUNC = 3,
NDB_GT_FUNC = 4,
NDB_GE_FUNC = 5,
NDB_ISNULL_FUNC = 6,
NDB_ISNOTNULL_FUNC = 7,
NDB_LIKE_FUNC = 8,
NDB_NOTLIKE_FUNC = 9,
NDB_NOT_FUNC = 10,
NDB_UNKNOWN_FUNC = 11,
NDB_COND_AND_FUNC = 12,
NDB_COND_OR_FUNC = 13,
NDB_UNSUPPORTED_FUNC = 14
} NDB_FUNC_TYPE;
typedef union ndb_item_qualification {
Item::Type value_type;
enum_field_types field_type; // Instead of Item::FIELD_ITEM
Item_func::Functype function_type; // Instead of Item::FUNC_ITEM
NDB_FUNC_TYPE function_type; // Instead of Item::FUNC_ITEM
} NDB_ITEM_QUALIFICATION;
typedef struct ndb_item_field_value {
@@ -91,21 +109,31 @@ typedef union ndb_item_value {
struct negated_function_mapping
{
Item_func::Functype pos_fun;
Item_func::Functype neg_fun;
NDB_FUNC_TYPE pos_fun;
NDB_FUNC_TYPE neg_fun;
};
/*
Define what functions can be negated in condition pushdown.
Note, these HAVE to be in the same order as in definition enum
*/
static const negated_function_mapping neg_map[]=
{
{Item_func::EQ_FUNC, Item_func::NE_FUNC},
{Item_func::NE_FUNC, Item_func::EQ_FUNC},
{Item_func::LT_FUNC, Item_func::GE_FUNC},
{Item_func::LE_FUNC, Item_func::GT_FUNC},
{Item_func::GT_FUNC, Item_func::LE_FUNC},
{Item_func::GE_FUNC, Item_func::LT_FUNC},
{Item_func::ISNULL_FUNC, Item_func::ISNOTNULL_FUNC},
{Item_func::ISNOTNULL_FUNC, Item_func::ISNULL_FUNC},
{Item_func::UNKNOWN_FUNC, Item_func::NOT_FUNC}
{NDB_EQ_FUNC, NDB_NE_FUNC},
{NDB_NE_FUNC, NDB_EQ_FUNC},
{NDB_LT_FUNC, NDB_GE_FUNC},
{NDB_LE_FUNC, NDB_GT_FUNC},
{NDB_GT_FUNC, NDB_LE_FUNC},
{NDB_GE_FUNC, NDB_LT_FUNC},
{NDB_ISNULL_FUNC, NDB_ISNOTNULL_FUNC},
{NDB_ISNOTNULL_FUNC, NDB_ISNULL_FUNC},
{NDB_LIKE_FUNC, NDB_NOTLIKE_FUNC},
{NDB_NOTLIKE_FUNC, NDB_LIKE_FUNC},
{NDB_NOT_FUNC, NDB_UNSUPPORTED_FUNC},
{NDB_UNKNOWN_FUNC, NDB_UNSUPPORTED_FUNC},
{NDB_COND_AND_FUNC, NDB_UNSUPPORTED_FUNC},
{NDB_COND_OR_FUNC, NDB_UNSUPPORTED_FUNC},
{NDB_UNSUPPORTED_FUNC, NDB_UNSUPPORTED_FUNC}
};
/*
@@ -160,14 +188,14 @@ class Ndb_item {
Ndb_item(Item_func::Functype func_type, const Item *item_value)
: type(NDB_FUNCTION)
{
qualification.function_type= func_type;
qualification.function_type= item_func_to_ndb_func(func_type);
value.item= item_value;
value.arg_count= ((Item_func *) item_value)->argument_count();
};
Ndb_item(Item_func::Functype func_type, uint no_args)
: type(NDB_FUNCTION)
{
qualification.function_type= func_type;
qualification.function_type= item_func_to_ndb_func(func_type);
value.arg_count= no_args;
};
~Ndb_item()
@@ -229,13 +257,30 @@ class Ndb_item {
((Item *)item)->save_in_field(field, false);
};
static Item_func::Functype negate(Item_func::Functype fun)
static NDB_FUNC_TYPE item_func_to_ndb_func(Item_func::Functype fun)
{
uint i;
for (i=0;
fun != neg_map[i].pos_fun &&
neg_map[i].pos_fun != Item_func::UNKNOWN_FUNC;
i++);
switch (fun) {
case (Item_func::EQ_FUNC): { return NDB_EQ_FUNC; }
case (Item_func::NE_FUNC): { return NDB_NE_FUNC; }
case (Item_func::LT_FUNC): { return NDB_LT_FUNC; }
case (Item_func::LE_FUNC): { return NDB_LE_FUNC; }
case (Item_func::GT_FUNC): { return NDB_GT_FUNC; }
case (Item_func::GE_FUNC): { return NDB_GE_FUNC; }
case (Item_func::ISNULL_FUNC): { return NDB_ISNULL_FUNC; }
case (Item_func::ISNOTNULL_FUNC): { return NDB_ISNOTNULL_FUNC; }
case (Item_func::LIKE_FUNC): { return NDB_LIKE_FUNC; }
case (Item_func::NOT_FUNC): { return NDB_NOT_FUNC; }
case (Item_func::UNKNOWN_FUNC): { return NDB_UNKNOWN_FUNC; }
case (Item_func::COND_AND_FUNC): { return NDB_COND_AND_FUNC; }
case (Item_func::COND_OR_FUNC): { return NDB_COND_OR_FUNC; }
default: { return NDB_UNSUPPORTED_FUNC; }
}
};
static NDB_FUNC_TYPE negate(NDB_FUNC_TYPE fun)
{
uint i= (uint) fun;
DBUG_ASSERT(fun == neg_map[i].pos_fun);
return neg_map[i].neg_fun;
};