PostgreSQL creates and starts using a new log file when the conditions specified by parameters log_rotation_age or log_rotation_size are met. Alternatively log file in CSV format can be used by file_fdw The default value of log_min_duration_statement is “-1”, which means disabled: PostgreSQL database supports several replication solutions to build high-availability, scalable, fault-tolerant applications, one of which is Write-Ahead Log (WAL) Shipping.This solution allows for a standby server to be implemented using file-based log shipping or streaming replication, or where possible, a combination of both approaches. You don't have to restart the whole computer, just the PostgreSQL server. Before PostgreSQL 12 the presence of the recovery.conf file told the instance to go into recovery. In your data/postgresql.conf file, change the log_statement setting to 'all'. I was editing the configuration file for 12.1, but my application was connecting to 10.11. Here we’re telling postgres to generate logs in the CSV format and to output them to the pg_log directory (within the data directory). Stack Overflow. Then restart PostgreSQL. but data will be available in log files. You left log_statement commented out, so it's still at its default.. A 2000 word worth complete description with demonstration guide The issue with this however is, that this can cause a lot of activity in the server log file which of course is not good for performance as well. 6. In postgresql.conf, set:. 20.6k 8 8 gold badges 63 63 silver badges 86 86 bronze badges. External tooling can parse the log files and store if required. PostgreSQL 12 will probably come with a solution to that. Another production-grade approach to managing log output is to send it to syslog and let syslog deal with file rotation. PostgreSQL won’t store such information inside database. Restart the PostgreSQL Service log_statement = 'all' (note the lack of the leading '#'). When there is no need to record all statements – perhaps after a troubleshooting exercise – the previous config file could be reinstated. For example, the name of a new log file that starts at 12:30pm will be postgresql.log.2019-04-01-1230. add a comment | 6. To do this, set the configuration parameter log_destination to syslog (to log to syslog only) in postgresql.conf.Then you can send a SIGHUP signal to the syslog daemon whenever you want to force it to start writing a new log file. We’ve also uncommented the log_filename setting to produce some proper name including timestamps for the log files.. You can find detailed information on all these settings within the official documentation.. About; Products ... answered Apr 2 '12 at 6:37. lambshaanxy lambshaanxy. Any ideas? Edit. As noted in the comments to the answer, this particular box had both PostgreSQL 12.1 server and PostgreSQL 10.11 server installed on it. 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