diff options
| -rw-r--r-- | src/backend/partitioning/partprune.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/src/backend/partitioning/partprune.c b/src/backend/partitioning/partprune.c index ccb9a579b30..a19f596d4de 100644 --- a/src/backend/partitioning/partprune.c +++ b/src/backend/partitioning/partprune.c @@ -1936,9 +1936,11 @@ match_clause_to_partition_key(GeneratePruningStepsContext *context, * whatsoever, but their negators (equality) are. We can use one of * those if we find it, but only for list partitioning. * - * Note: we report NOMATCH on failure, in case a later partkey has the - * same expression but different opfamily. That's unlikely, but not - * much more so than duplicate expressions with different collations. + * Note: we report NOMATCH on failure if the negator isn't the + * equality operator for the partkey's opfamily as other partkeys may + * have the same expression but different opfamily. That's unlikely, + * but not much more so than duplicate expressions with different + * collations. */ if (op_in_opfamily(opno, partopfamily)) { @@ -1948,8 +1950,9 @@ match_clause_to_partition_key(GeneratePruningStepsContext *context, } else { + /* not supported for anything apart from LIST partitioned tables */ if (part_scheme->strategy != PARTITION_STRATEGY_LIST) - return PARTCLAUSE_NOMATCH; + return PARTCLAUSE_UNSUPPORTED; /* See if the negator is equality */ negator = get_negator(opno); @@ -2924,7 +2927,7 @@ get_matching_list_bounds(PartitionPruneContext *context, * multiple pruning steps might exclude it, so we infer its inclusion * elsewhere. * - * 'opstrategy' if non-zero must be a btree strategy number. + * 'opstrategy' must be a btree strategy number. * * 'values' contains Datums indexed by the partition key to use for pruning. * |