partition-comments.patch

*** a/src/backend/catalog/partition.c
--- b/src/backend/catalog/partition.c
***************
*** 1660,1673 **** make_partition_op_expr(PartitionKey key, int keynum,
  /*
   * 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.
   *
   * 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.
   */
  static List *
  get_qual_for_hash(Relation parent, PartitionBoundSpec *spec)
--- 1660,1670 ----
  /*
   * get_qual_for_hash
   *
!  * 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().
   */
  static List *
  get_qual_for_hash(Relation parent, PartitionBoundSpec *spec)
***************
*** 1747,1753 **** 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.
   *
   * The function returns NIL for a default partition when it's the only
   * partition since in that case there is no constraint.
--- 1744,1750 ----
   * get_qual_for_list
   *
   * Returns an implicit-AND list of expressions to use as a list partition's
!  * 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.
***************
*** 2027,2033 **** get_range_nulltest(PartitionKey key)
   * 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.
   *
   * 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
--- 2024,2030 ----
   * get_qual_for_range
   *
   * Returns an implicit-AND list of expressions to use as a range partition's
!  * 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