index f8c9a1149373e5bbf527d462a72e6402522e73db..fcf76555531af28af6a0720718e33e4a379e3c85 100644 (file)
/*
* get_qual_for_hash
*
- * Given a list of partition columns, modulus and remainder corresponding to a
- * partition, this function returns CHECK constraint expression Node for that
- * partition.
+ * Returns a CHECK constraint expression to use as a hash partition's
+ * constraint, given the parent relation and partition bound structure.
*
* The partition constraint for a hash partition is always a call to the
- * built-in function satisfies_hash_partition(). The first two arguments are
- * the modulus and remainder for the partition; the remaining arguments are the
- * values to be hashed.
+ * built-in function satisfies_hash_partition().
*/
static List *
get_qual_for_hash(Relation parent, PartitionBoundSpec *spec)
@@ -1812,7 +1809,7 @@ get_qual_for_hash(Relation parent, PartitionBoundSpec *spec)
* get_qual_for_list
*
* Returns an implicit-AND list of expressions to use as a list partition's
- * constraint, given the partition key and bound structures.
+ * constraint, given the parent relation and partition bound structure.
*
* The function returns NIL for a default partition when it's the only
* partition since in that case there is no constraint.
* get_qual_for_range
*
* Returns an implicit-AND list of expressions to use as a range partition's
- * constraint, given the partition key and bound structures.
+ * constraint, given the parent relation and partition bound structure.
*
* For a multi-column range partition key, say (a, b, c), with (al, bl, cl)
* as the lower bound tuple and (au, bu, cu) as the upper bound tuple, we