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| author | Andres Freund <andres@anarazel.de> | 2015-07-24 11:48:53 +0200 |
|---|---|---|
| committer | Andres Freund <andres@anarazel.de> | 2015-07-24 11:52:22 +0200 |
| commit | bb0203f26fa5f09fe2689a9db4bc632c1435edec (patch) | |
| tree | c1dbfcf28c36c17b93d282058f6383a168a93429 /src/include/parser/parse_node.h | |
| parent | fbf8dc21738749470f73f91a95ac01912c9deb10 (diff) | |
| download | postgresql-bb0203f26fa5f09fe2689a9db4bc632c1435edec.tar.gz postgresql-bb0203f26fa5f09fe2689a9db4bc632c1435edec.zip | |
Fix bug around assignment expressions containing indirections.
Handling of assigned-to expressions with indirection (e.g. set f1[1] =
3) was broken for ON CONFLICT DO UPDATE. The problem was that
ParseState was consulted to determine if an INSERT-appropriate or
UPDATE-appropriate behavior should be used when transforming expressions
with indirections. When the wrong path was taken the old row was
substituted with NULL, leading to wrong results..
To fix remove p_is_update and only use p_is_insert to decide how to
transform the assignment expression, and uset p_is_insert while parsing
the on conflict statement. This isn't particularly pretty, but it's not
any worse than before.
Author: Peter Geoghegan, slightly edited by me
Discussion: CAM3SWZS8RPvA=KFxADZWw3wAHnnbxMxDzkEC6fNaFc7zSm411w@mail.gmail.com
Backpatch: 9.5, where the feature was introduced
Diffstat (limited to 'src/include/parser/parse_node.h')
| -rw-r--r-- | src/include/parser/parse_node.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/src/include/parser/parse_node.h b/src/include/parser/parse_node.h index 3103b715944..7ecaffc0dc3 100644 --- a/src/include/parser/parse_node.h +++ b/src/include/parser/parse_node.h @@ -152,7 +152,6 @@ struct ParseState bool p_hasSubLinks; bool p_hasModifyingCTE; bool p_is_insert; - bool p_is_update; bool p_locked_from_parent; Relation p_target_relation; RangeTblEntry *p_target_rangetblentry; |