diff options
| author | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2022-10-24 12:52:43 +0200 |
|---|---|---|
| committer | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2022-10-24 12:52:43 +0200 |
| commit | fb2a83b2b750a32ddfd107a75a3bc173f4f0a81f (patch) | |
| tree | c509bb1109ab06e6d50812b0c8771e22657e9eea /src/include/nodes/pathnodes.h | |
| parent | 4a6de748d3429cfa081942c46411d62341867bfd (diff) | |
Update some comments that should've covered MERGE
Oversight in 7103ebb7aae8. Backpatch to 15.
Author: Richard Guo <guofenglinux@gmail.com>
Discussion: https://postgr.es/m/CAMbWs48gnDjZXq3-b56dVpQCNUJ5hD9kdtWN4QFwKCEapspNsA@mail.gmail.com
Diffstat (limited to 'src/include/nodes/pathnodes.h')
| -rw-r--r-- | src/include/nodes/pathnodes.h | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h index 8556b2ffe72..540de8a4a7a 100644 --- a/src/include/nodes/pathnodes.h +++ b/src/include/nodes/pathnodes.h @@ -268,11 +268,11 @@ struct PlannerInfo /* * all_result_relids is empty for SELECT, otherwise it contains at least - * parse->resultRelation. For UPDATE/DELETE across an inheritance or - * partitioning tree, the result rel's child relids are added. When using - * multi-level partitioning, intermediate partitioned rels are included. - * leaf_result_relids is similar except that only actual result tables, - * not partitioned tables, are included in it. + * parse->resultRelation. For UPDATE/DELETE/MERGE across an inheritance + * or partitioning tree, the result rel's child relids are added. When + * using multi-level partitioning, intermediate partitioned rels are + * included. leaf_result_relids is similar except that only actual result + * tables, not partitioned tables, are included in it. */ Relids all_result_relids; /* set of all result relids */ Relids leaf_result_relids; /* set of all leaf relids */ @@ -2361,10 +2361,10 @@ typedef struct AppendRelInfo } AppendRelInfo; /* - * Information about a row-identity "resjunk" column in UPDATE/DELETE. + * Information about a row-identity "resjunk" column in UPDATE/DELETE/MERGE. * - * In partitioned UPDATE/DELETE it's important for child partitions to share - * row-identity columns whenever possible, so as not to chew up too many + * In partitioned UPDATE/DELETE/MERGE it's important for child partitions to + * share row-identity columns whenever possible, so as not to chew up too many * targetlist columns. We use these structs to track which identity columns * have been requested. In the finished plan, each of these will give rise * to one resjunk entry in the targetlist of the ModifyTable's subplan node. |