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| author | Peter Eisentraut <peter@eisentraut.org> | 2019-03-30 08:13:09 +0100 |
|---|---|---|
| committer | Peter Eisentraut <peter@eisentraut.org> | 2019-03-30 08:15:57 +0100 |
| commit | fc22b6623b6b3bab3cb057ccd282c2bfad1a0b30 (patch) | |
| tree | cda5092955ece5d547d5517ed56a3d480f199d25 /src/backend/optimizer/util/inherit.c | |
| parent | 6b8b5364ddd0e4d882562615c6b6c28638ade9f2 (diff) | |
Generated columns
This is an SQL-standard feature that allows creating columns that are
computed from expressions rather than assigned, similar to a view or
materialized view but on a column basis.
This implements one kind of generated column: stored (computed on
write). Another kind, virtual (computed on read), is planned for the
future, and some room is left for it.
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/b151f851-4019-bdb1-699e-ebab07d2f40a@2ndquadrant.com
Diffstat (limited to 'src/backend/optimizer/util/inherit.c')
| -rw-r--r-- | src/backend/optimizer/util/inherit.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/backend/optimizer/util/inherit.c b/src/backend/optimizer/util/inherit.c index 1d1e5060e26..d467a4826b0 100644 --- a/src/backend/optimizer/util/inherit.c +++ b/src/backend/optimizer/util/inherit.c @@ -280,6 +280,10 @@ expand_partitioned_rtentry(PlannerInfo *root, RangeTblEntry *parentrte, if (!root->partColsUpdated) root->partColsUpdated = has_partition_attrs(parentrel, parentrte->updatedCols, NULL); + /* + * There shouldn't be any generated columns in the partition key. + */ + Assert(!has_partition_attrs(parentrel, parentrte->extraUpdatedCols, NULL)); /* * If the partitioned table has no partitions, treat this as the @@ -415,6 +419,8 @@ expand_single_inheritance_child(PlannerInfo *root, RangeTblEntry *parentrte, appinfo->translated_vars); childrte->updatedCols = translate_col_privs(parentrte->updatedCols, appinfo->translated_vars); + childrte->extraUpdatedCols = translate_col_privs(parentrte->extraUpdatedCols, + appinfo->translated_vars); } /* |