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Merge pull request #206 from nastena1606/PG-358-Doc-data-display-by-PGSS-PGSM-RC2 

PG-358 Documented block and WAL data display
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Ibrar Ahmed 2022-04-21 23:18:17 +05:00 committed by GitHub
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README.md
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@ -41,6 +41,8 @@ The `pg_stat_monitor` is a **_Query Performance Monitoring_** tool for PostgreSQ
While `pg_stat_statements` provides ever-increasing metrics, `pg_stat_monitor` aggregates the collected data, saving user efforts for doing it themselves. `pg_stat_monitor` stores statistics in configurable time-based units – buckets. This allows focusing on statistics generated for shorter time periods and makes query timing information such as max/min/mean time more accurate.
>**NOTE**: Because of these differences in data processing, memory blocks and WAL (Write Ahead Logs) related statistics data are displayed inconsistently when both `pg_stat_monitor` and `pg_stat_statements` are used together.
To learn about other features, available in `pg_stat_monitor`, see the [Features](#pg_stat_monitor-features) section and the [User Guide](https://github.com/percona/pg_stat_monitor/blob/master/docs/USER_GUIDE.md).
`pg_stat_monitor` supports PostgreSQL versions 11 and above. It is compatible with both PostgreSQL provided by PostgreSQL Global Development Group (PGDG) and [Percona Distribution for PostgreSQL](https://www.percona.com/software/postgresql-distribution).

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docs/COMPARISON.md
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@ -4,6 +4,9 @@ The `pg_stat_monitor` extension is developed on the basis of `pg_stat_statements
Thus, `pg_stat_monitor` inherits the columns available in `pg_stat_statements` plus provides additional ones.
Note that [`pg_stat_monitor` and `pg_stat_statements` process statistics data differently](index.md#how-pg_stat_monitor-works). Because of these differences, memory blocks and WAL (Write Ahead Logs) related statistics data are displayed inconsistently when both extensions are used together.
To see all available columns, run the following command from the `psql` terminal:
```sql