Release Notes

Below is the complete list of release notes for every version of pg_stat_monitor.


Bugs Fixed

PG-382: Histogram default settings changed to prevent the PostgreSQL server to crash

PG-417: Addressed security vulnerabilities to prevent an attacker from precreating functions

DISTPG-427: Fixed the issue with the extensions not working when pg_stat_monitor is enabled by replacing the return with goto exit for the pgsm_emit_log_hook function


Bump version from 1.0.0-rc.2 to 1.0.0.



PG-331: Changed the default value for the pg_stat_monitor.pgsm_query_max_len parameter from 1024 to 2048 for better data presentation in PMM

PG-355: Changed the collection of sys_time and user_time metrics so that they are now presented as an accumulative value

PG-286: Improved pg_stat_monitor performance by decreasing the overhead by more than 50%.

PG-267: Added test case to verify histogram feature

PG-359: Documentation: updated the pg_stat_monitor_settings view reference.

PG-344: Documentation: Updated the extensions order and behavior with data collection for PostgreSQL 14.

PG-358: Documentation: data display of ** blk ** and ** wal ** columns when both pg_stat_monitor and pg_stat_statements are loaded together.

Bugs Fixed

PG-350: Fixed bucket time overflow

PG-338: Fixed query calls count by setting the default value for pg_stat_monitor.pgsm_track to top.

PG-291: Fixed calls count.

PG-325: Fixed deadlock that occurred when the query length exceeded the pgsm_query_max_len value.

PG-326: Added validation for pgsm_histogram_min and pgsm_histogram_max ranges

PG-329: Fixed creation of pg_stat_monitor_errors view on SQL files.

PG-296: Fixed issue with the application name not displaying in the view when changed.

PG-290: Fixed issue with PostgreSQL crashing after enabling debug log level and when pg_stat_monitor is enabled.

PG-166: Fixed issue with displaying the actual system time values instead of NULL

PG-369: Fixed issue with incorrect wal_bytes values for PostgreSQL 11 and 12 that caused Query Analytics failure in PMM by ignoring the WalUsage variable value for these versions.



PG-186: Add support to monitor query execution plan

PG-147: Store top query, instead of parent query.

PG-188: Added a new column to monitor the query state i.e PARSING/PLANNING/ACTIVE/FINISHED.

PG-180: Schema Qualified table/relations names.

Regression Test Suite.

Bugs Fixed

PG-189: Regression crash in case of PostgreSQL 11.

PG-187: Compilation Error for PostgreSQL 11 and PostgreSQL 12.

PG-186: Add support to monitor query execution plan.

PG-182: Added a new option for the query buffer overflow.

PG-181: Segmentation fault in case of track_utility is ON.

Some Code refactoring.


PG-147: Stored Procedure Support add parentid to track caller.

PG-177: Error in Histogram ranges.



Column userid (int64) was removed. Column dbid (int64) was removed.

Column user (string) was added (replacement for userid). Column datname (string) was added (replacement for dbid).

PG-176: Extract fully qualified relations name.

PG-175: Only Superuser / Privileged user can view IP address.

PG-174: Code cleanup.

PG-173: Added new WAL usage statistics.

PG-172: Exponential histogram for time buckets.

PG-164: Query timing will be four decimal places instead of two.

PG-167: SQLERRCODE must be in readable format.

Bugs Fixed

PG-169: Fixing message buffer overrun and incorrect index access to fix the server crash.

PG-168: "calls" and histogram parameter does not match.

PG-166: Display actual system time instead of null.

PG-165: Recycle expired buckets.

PG-150: Error while logging CMD Type like SELECT, UPDATE, INSERT, DELETE.


PG-165: Recycle expired buckets.

PG-164: Query timing will be four decimal places instead of two.

PG-161: Miscellaneous small issues.


PG-158: Segmentation fault while using pgbench with clients > 1.

PG-159: Bucket start time (bucket_start_time) should be aligned with bucket_time.

PG-160: Integration with PGXN.



PG-153: Capture and record the application_name executing the query.

PG-145: Add a new View/Query to show the actual Database name and Username.

PG-110; Aggregate the number of warnings.

PG-109: Log failed queries or queries with warning messages.

PG-150: Differentiate different types of queries such as SELECT, UPDATE, INSERT or DELETE.

Bugs Fixed

PG-111 Show information for incomplete buckets.

PG-148 Loss of query statistics/monitoring due to not enough “slots” available.


Initial Release.



PG-156: Adding a placeholder replacement function for the prepared statement