diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2021-07-09 11:02:26 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2021-07-09 11:02:26 -0400 |
| commit | a9da1934e971b38ab360ce80a352fbfc4d2d986b (patch) | |
| tree | 6a6be8cd6055ad2bfd84c36ee3e7280bda132440 /src/backend/access/gist/gistbuild.c | |
| parent | ca2e4472ba7b6e5e8cd8955eacffb90e4d88d085 (diff) | |
| download | postgresql-a9da1934e971b38ab360ce80a352fbfc4d2d986b.tar.gz | |
Reject cases where a query in WITH rewrites to just NOTIFY.
Since the executor can't cope with a utility statement appearing
as a node of a plan tree, we can't support cases where a rewrite
rule inserts a NOTIFY into an INSERT/UPDATE/DELETE command appearing
in a WITH clause of a larger query. (One can imagine ways around
that, but it'd be a new feature not a bug fix, and so far there's
been no demand for it.) RewriteQuery checked for this, but it
missed the case where the DML command rewrites to *only* a NOTIFY.
That'd lead to crashes later on in planning. Add the missed check,
and improve the level of testing of this area.
Per bug #17094 from Yaoguang Chen. It's been busted since WITH
was introduced, so back-patch to all supported branches.
Discussion: https://postgr.es/m/17094-bf15dff55eaf2e28@postgresql.org
Diffstat (limited to 'src/backend/access/gist/gistbuild.c')
0 files changed, 0 insertions, 0 deletions