CREATE EXTENSION pg_stat_monitor; SELECT pg_stat_monitor_reset(); pg_stat_monitor_reset ----------------------- (1 row) SELECT * from pg_stat_monitor_settings; name | value | default_value | description | minimum | maximum | options | restart ------------------------------------------+--------+---------------+----------------------------------------------------------------------------------------------------------+---------+------------+----------------+--------- pg_stat_monitor.pgsm_max | 100 | 100 | Sets the maximum size of shared memory in (MB) used for statement's metadata tracked by pg_stat_monitor. | 1 | 1000 | | yes pg_stat_monitor.pgsm_query_max_len | 2048 | 2048 | Sets the maximum length of query. | 1024 | 2147483647 | | yes pg_stat_monitor.pgsm_track_utility | yes | yes | Selects whether utility commands are tracked. | | | yes, no | no pg_stat_monitor.pgsm_normalized_query | yes | yes | Selects whether save query in normalized format. | | | yes, no | no pg_stat_monitor.pgsm_max_buckets | 10 | 10 | Sets the maximum number of buckets. | 1 | 10 | | yes pg_stat_monitor.pgsm_bucket_time | 60 | 60 | Sets the time in seconds per bucket. | 1 | 2147483647 | | yes pg_stat_monitor.pgsm_histogram_min | 0 | 0 | Sets the time in millisecond. | 0 | 2147483647 | | yes pg_stat_monitor.pgsm_histogram_max | 100000 | 100000 | Sets the time in millisecond. | 10 | 2147483647 | | yes pg_stat_monitor.pgsm_histogram_buckets | 10 | 10 | Sets the maximum number of histogram buckets | 2 | 50 | | yes pg_stat_monitor.pgsm_query_shared_buffer | 20 | 20 | Sets the maximum size of shared memory in (MB) used for query tracked by pg_stat_monitor. | 1 | 10000 | | yes pg_stat_monitor.pgsm_overflow_target | 1 | 1 | Sets the overflow target for pg_stat_monitor | 0 | 1 | | yes pg_stat_monitor.pgsm_enable_query_plan | no | no | Enable/Disable query plan monitoring | | | yes, no | no pg_stat_monitor.pgsm_track | top | top | Selects which statements are tracked by pg_stat_monitor. | | | none, top, all | no pg_stat_monitor.pgsm_extract_comments | yes | no | Enable/Disable extracting comments from queries. | | | yes, no | no pg_stat_monitor.pgsm_track_planning | no | no | Selects whether planning statistics are tracked. | | | yes, no | no (15 rows) SELECT 1 AS num /* First comment */, 'John' as Name /* Second comment*/; num | name -----+------ 1 | John (1 row) SELECT query, comments FROM pg_stat_monitor ORDER BY query COLLATE "C"; query | comments ------------------------------------------------------------------------+------------------------------------------ SELECT $1 AS num /* First comment */, $2 as Name /* Second comment*/ | /* First comment */, /* Second comment*/ SELECT * from pg_stat_monitor_settings | SELECT pg_stat_monitor_reset() | SELECT query, comments FROM pg_stat_monitor ORDER BY query COLLATE "C" | (4 rows) SELECT pg_stat_monitor_reset(); pg_stat_monitor_reset ----------------------- (1 row) SELECT * from pg_stat_monitor_settings; name | value | default_value | description | minimum | maximum | options | restart ------------------------------------------+--------+---------------+----------------------------------------------------------------------------------------------------------+---------+------------+----------------+--------- pg_stat_monitor.pgsm_max | 100 | 100 | Sets the maximum size of shared memory in (MB) used for statement's metadata tracked by pg_stat_monitor. | 1 | 1000 | | yes pg_stat_monitor.pgsm_query_max_len | 2048 | 2048 | Sets the maximum length of query. | 1024 | 2147483647 | | yes pg_stat_monitor.pgsm_track_utility | yes | yes | Selects whether utility commands are tracked. | | | yes, no | no pg_stat_monitor.pgsm_normalized_query | yes | yes | Selects whether save query in normalized format. | | | yes, no | no pg_stat_monitor.pgsm_max_buckets | 10 | 10 | Sets the maximum number of buckets. | 1 | 10 | | yes pg_stat_monitor.pgsm_bucket_time | 60 | 60 | Sets the time in seconds per bucket. | 1 | 2147483647 | | yes pg_stat_monitor.pgsm_histogram_min | 0 | 0 | Sets the time in millisecond. | 0 | 2147483647 | | yes pg_stat_monitor.pgsm_histogram_max | 100000 | 100000 | Sets the time in millisecond. | 10 | 2147483647 | | yes pg_stat_monitor.pgsm_histogram_buckets | 10 | 10 | Sets the maximum number of histogram buckets | 2 | 50 | | yes pg_stat_monitor.pgsm_query_shared_buffer | 20 | 20 | Sets the maximum size of shared memory in (MB) used for query tracked by pg_stat_monitor. | 1 | 10000 | | yes pg_stat_monitor.pgsm_overflow_target | 1 | 1 | Sets the overflow target for pg_stat_monitor | 0 | 1 | | yes pg_stat_monitor.pgsm_enable_query_plan | no | no | Enable/Disable query plan monitoring | | | yes, no | no pg_stat_monitor.pgsm_track | top | top | Selects which statements are tracked by pg_stat_monitor. | | | none, top, all | no pg_stat_monitor.pgsm_extract_comments | no | no | Enable/Disable extracting comments from queries. | | | yes, no | no pg_stat_monitor.pgsm_track_planning | no | no | Selects whether planning statistics are tracked. | | | yes, no | no (15 rows) SELECT 1 AS num /* First comment */, 'John' as Name /* Second comment*/; num | name -----+------ 1 | John (1 row) SELECT query, comments FROM pg_stat_monitor ORDER BY query COLLATE "C"; query | comments ------------------------------------------------------------------------+------------------------------------------ SELECT $1 AS num /* First comment */, $2 as Name /* Second comment*/ | /* First comment */, /* Second comment*/ SELECT * from pg_stat_monitor_settings | SELECT pg_stat_monitor_reset() | SELECT query, comments FROM pg_stat_monitor ORDER BY query COLLATE "C" | (4 rows) Drop extension pg_stat_monitor;