Álvaro Herrera 0c8e082fba Assign "backend" type earlier during process start-up
Instead of assigning the backend type in the Main function of each
postmaster child, do it right after fork(), by which time it is already
known by postmaster_child_launch().  This reduces the time frame during
which MyBackendType is incorrect.

Before this commit, ProcessStartupPacket would overwrite MyBackendType
to B_BACKEND for dead-end backends, which is quite dubious.  Stop that.

We may now see MyBackendType == B_BG_WORKER before setting up
MyBgworkerEntry.  As far as I can see this is only a problem if we try
to log a message and %b is in log_line_prefix, so we now have a constant
string to cover that case.  Previously, it would print "unrecognized",
which seems strictly worse.

Author: Euler Taveira <euler@eulerto.com>
Discussion: https://postgr.es/m/e85c6671-1600-4112-8887-f97a8a5d07b2@app.fastmail.com
2026-02-04 16:56:57 +01:00
2025-08-14 12:09:34 -04:00
2022-12-04 15:23:00 -05:00
2024-11-05 13:56:02 +01:00
2026-01-01 13:24:10 -05:00
2020-02-10 20:47:50 +01:00
2024-02-28 15:17:23 +04:00
2026-01-01 13:24:10 -05:00

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/.

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