* of datum-tuples with 2 datums, modulus and remainder, corresponding to a
* given partition.
*
+ * The datums in datums array are arranged in increasing order as defined by
+ * functions qsort_partition_rbound_cmp(), qsort_partition_list_value_cmp() and
+ * qsort_partition_hbound_cmp() for range, list and hash partitioned tables
+ * respectively. For range and list partitions this simply means that the
+ * datums in the datums array are arranged in increasing order as defined by
+ * the partition key's operator classes and collations.
+ *
* In the case of list partitioning, the indexes array stores one entry for
* every datum, which is the index of the partition that accepts a given datum.
* In case of range partitioning, it stores one entry per distinct range