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Modularize log_connections output

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Convert the boolean log_connections GUC into a list GUC comprised of the
connection aspects to log.

This gives users more control over the volume and kind of connection
logging.

The current log_connections options are 'receipt', 'authentication', and
'authorization'. The empty string disables all connection logging. 'all'
enables all available connection logging.

For backwards compatibility, the most common values for the
log_connections boolean are still supported (on, off, 1, 0, true, false,
yes, no). Note that previously supported substrings of on, off, true,
false, yes, and no are no longer supported.

Author: Melanie Plageman <melanieplageman@gmail.com>
Reviewed-by: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Reviewed-by: Fujii Masao <masao.fujii@oss.nttdata.com>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/flat/CAAKRu_b_smAHK0ZjrnL5GRxnAVWujEXQWpLXYzGbmpcZd3nLYw%40mail.gmail.com
This commit is contained in:
Melanie Plageman
2025-03-12 11:33:01 -04:00
parent f554a95379
commit 9219093cab
12 changed files with 331 additions and 25 deletions
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21
src/backend/utils/misc/guc_tables.c
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@ -1219,15 +1219,6 @@ struct config_bool ConfigureNamesBool[] =
true,
NULL, NULL, NULL
},
{
{"log_connections", PGC_SU_BACKEND, LOGGING_WHAT,
gettext_noop("Logs each successful connection."),
NULL
},
&Log_connections,
false,
NULL, NULL, NULL
},
{
{"trace_connection_negotiation", PGC_POSTMASTER, DEVELOPER_OPTIONS,
gettext_noop("Logs details of pre-authentication connection handshake."),
@ -4886,6 +4877,18 @@ struct config_string ConfigureNamesString[] =
NULL, NULL, NULL
},
{
{"log_connections", PGC_SU_BACKEND, LOGGING_WHAT,
gettext_noop("Logs specified aspects of connection establishment and setup."),
NULL,
GUC_LIST_INPUT
},
&log_connections_string,
"",
check_log_connections, assign_log_connections, NULL
},
/* End-of-list marker */
{
{NULL, 0, 0, NULL, NULL}, NULL, NULL, NULL, NULL, NULL