0.11.0 / 2022-07-28

NOTE: pg_stat_bgwriter counter metrics had the _total suffix added #556

• [CHANGE] refactor pg_stat_bgwriter metrics into standalone collector #556
• [FEATURE] Add pg_database collector #613
• [ENHANCEMENT] Add pg_database_size_bytes metric #613
• [BUGFIX] Avoid parsing error from bogus Azure Flexible Server custom GUC #587
• [BUGFIX] Fix pg_stat_archiver error in 9.4 and earlier. #599
• [BUGFIX] Sanitize setting values because of Aurora irregularity #620

0.10.1 / 2022-01-14

• [BUGFIX] Fix broken log-level for values other than debug. #560

0.10.0 / 2021-07-08

• [ENHANCEMENT] Add ability to set included databases when autoDiscoverDatabases is enabled #499
• [BUGFIX] fix pg_replication_slots on postgresql versions 9.4 <> 10.0 #537

0.9.0 / 2021-03-01

First release under the Prometheus Community organisation.

• [CHANGE] Update build to use standard Prometheus promu/Dockerfile
• [ENHANCEMENT] Remove duplicate column in queries.yml #433
• [ENHANCEMENT] Add query for 'pg_replication_slots' #465
• [ENHANCEMENT] Allow a custom prefix for metric namespace #387
• [ENHANCEMENT] Improve PostgreSQL replication lag detection #395
• [ENHANCEMENT] Support connstring syntax when discovering databases #473
• [ENHANCEMENT] Detect SIReadLock locks in the pg_locks metric #421
• [BUGFIX] Fix pg_database_size_bytes metric in queries.yaml #357
• [BUGFIX] Don't ignore errors in parseUserQueries #362
• [BUGFIX] Fix queries.yaml for AWS RDS #370
• [BUGFIX] Recover when connection cannot be established at startup #415
• [BUGFIX] Don't retry if an error occurs #426
• [BUGFIX] Do not panic on incorrect env #457

v0.8.0

* Add a build info metric (#323)
* Re-add pg_stat_bgwriter metrics which were accidentally removed in the previous version. (resolves #336)
* Export pg_stat_archiver metrics (#324)
* Add support for 'DATA_SOURCE_URI_FILE' envvar.
* Resolve #329
* Added new field "master" to queries.yaml. (credit to @sfalkon)
  - If "master" is true, query will be call only on once database in instance
* Change queries.yaml for work with autoDiscoveryDatabases options (credit to @sfalkon)
  - added current database name to metrics because any database in cluster maybe have the same table names
  - added "master" field for query instance metrics.

v0.7.0

Introduces some more significant changes, hence the minor version bump in
such a short time frame.

* Rename pg_database_size to pg_database_size_bytes in queries.yml.
* Add pg_stat_statements to sample queries.yml file.
* Add support for optional namespace caching. (#319)
* Fix some autodiscovery problems (#314) (resolves #308)
* Yaml parsing refactor (#299)
* Don't stop generating fingerprint while encountering value with "=" sign (#318)
  (may resolve problems with passwords and special characters).

v0.6.0

* Add SQL for grant connect (#303)
* Expose pg_current_wal_lsn_bytes (#307)
* [minor] fix landing page content-type (#305)
* Updated lib/pg driver to 1.2.0 in order to support stronger SCRAM-SHA-256 authentication. This drops support for Go < 1.11 and PostgreSQL < 9.4. (#304)
* Provide more helpful default values for tables that have never been vacuumed (#310)
* Add retries to getServer() (#316)
* Fix pg_up metric returns last calculated value without explicit resetting (#291)
* Discover only databases that are not templates and allow connections (#297)
* Add --exclude-databases option (#298)

v0.5.1

* Add application_name as a label for pg_stat_replication metrics (#285).

v0.5.0

It's been far too long since I've done a release and we have a lot of accumulated changes.

* Docker image now runs as a non-root user named "postgres_exporter"
* Add `--auto-discover-databases` option, which automatically discovers and scrapes all databases.
* Add support for boolean data types as metrics
* Replication lag is now expressed as a float and not truncated to an integer.
* When default metrics are disabled, no version metrics are collected anymore either.
* BUGFIX: Fix exporter panic when postgres server goes down.
* Add support for collecting metrics from multiple servers.
* PostgreSQL 11 is now supported in the integration tests.

v0.4.7

* Added a query for v9.1 pg_stat_activity.
* Add `--constantLabels` flag to allow applying fixed constant labels to metrics.
* queries.yml: dd pg_statio_user_tables.
* Support 'B' suffix in units.