PostgreSQL version:

log_temp_files

Controls logging of temporary file names and sizes. Temporary files can be created for sorts, hashes, and temporary query results. A log entry is made for each temporary file when it is deleted. A value of zero logs all temporary file information, while positive values log only files whose size is greater than or equal to the specified number of kilobytes. The default setting is -1, which disables such logging. Only superusers can change this setting.

Recommendations

This logger is used for troubleshooting sorts and other activities which are spilling to disk. If you use it at all, it's probably good to set it a something low like 1kB so that you know each query that spilled to disk, since any disk spill at all causes a dramatic slowdown in the query. Can be used to see if you need more work_mem, temp_mem or maintenance_work_mem.

At postgresqlCO.NF (OnGres) we value your privacy and treat all data very seriously. We're fully GDPR compliant, and we continuously monitor and improve our data storage, retention and compliance mechanisms.

This web page does not, however, store any PII (Personally Identifiable Information). The only service that stores any data is Google Analytics, and we use it to gather analytics of the web page.

This website contains some data from the official documentation of the PostgreSQL.org project, and from Annotated.Conf, used with permission.

If you have any question or concern about our terms of service or privacy policy, please contact us at dataprotection _at_ ongres _dot_ com.

OK