dfd7ede529
Commit 282b1cde9 changed pg_listening_channels() to keep a hash table
scan open between calls of this set-returning function. If the
executor stops fetching rows early, as with a target-list call under
LIMIT, the scan remains registered until transaction end, resulting in
leak complaints and eventually a PANIC.
Instead materialize the result in a tuplestore, so that we can
complete the hash scan within a single call.
Author: Joel Jacobson <joel@compiler.org>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/069fc976-bee1-4f0f-b22b-86ef7ed4f9ff@app.fastmail.com
Backpatch-through: 19
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.