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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2014-01-07 15:25:19 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2014-01-07 15:25:19 -0500 |
| commit | 0a43e5466ca03fce433309c6de2a4272b79c1abb (patch) | |
| tree | 1825171721464cb544277cf827fa02b6b273afb0 /src/backend/parser/parse_relation.c | |
| parent | 91c2755fcbd701067702cc889deeddddc6ff7a92 (diff) | |
| download | postgresql-0a43e5466ca03fce433309c6de2a4272b79c1abb.tar.gz postgresql-0a43e5466ca03fce433309c6de2a4272b79c1abb.zip | |
Fix LATERAL references to target table of UPDATE/DELETE.
I failed to think much about UPDATE/DELETE when implementing LATERAL :-(.
The implemented behavior ended up being that subqueries in the FROM or
USING clause (respectively) could access the update/delete target table as
though it were a lateral reference; which seems fine if they said LATERAL,
but certainly ought to draw an error if they didn't. Fix it so you get a
suitable error when you omit LATERAL. Per report from Emre Hasegeli.
Diffstat (limited to 'src/backend/parser/parse_relation.c')
| -rw-r--r-- | src/backend/parser/parse_relation.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/backend/parser/parse_relation.c b/src/backend/parser/parse_relation.c index d473749e303..8bd3a90feaf 100644 --- a/src/backend/parser/parse_relation.c +++ b/src/backend/parser/parse_relation.c @@ -1611,6 +1611,10 @@ isLockedRefname(ParseState *pstate, const char *refname) * and/or namespace list. (We assume caller has checked for any * namespace conflicts.) The RTE is always marked as unconditionally * visible, that is, not LATERAL-only. + * + * Note: some callers know that they can find the new ParseNamespaceItem + * at the end of the pstate->p_namespace list. This is a bit ugly but not + * worth complicating this function's signature for. */ void addRTEtoQuery(ParseState *pstate, RangeTblEntry *rte, |