Adding upstream version 1.45.3+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 58 deletions

diff --git a/health/guides/postgres/postgres_table_bloat_size_perc.md b/health/guides/postgres/postgres_table_bloat_size_perc.md
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-### Understand the alert
-
-The `postgres_table_bloat_size_perc` alert measures the bloat size percentage in a PostgreSQL database table. If you receive this alert, it means that the bloat size in a particular table in your PostgreSQL database has crossed the warning or critical threshold.
-
-### What is bloat size?
-
-In PostgreSQL, bloat size refers to the wasted storage space caused by dead rows and unused space that accumulates in database tables over time. It is a result of frequent database operations (inserts, updates, and deletes), impacting database performance and storage footprint.
-
-### Troubleshoot the alert
-
-- Investigate the bloat size and impacted table
-
-To get a detailed report on bloated tables in your PostgreSQL database, use the [`pgstattuple`](https://www.postgresql.org/docs/current/pgstattuple.html) extension. First, install the extension if it isn't already installed:
-
-   ```
-   CREATE EXTENSION pgstattuple;
-   ```
-
-Then, run the following query to find the bloated tables:
-
-   ```sql
-   SELECT 
-      schemaname, tablename, 
-      pg_size_pretty(bloat_size) AS bloat_size,
-      round(bloat_ratio::numeric, 2) AS bloat_ratio
-   FROM (
-      SELECT 
-         schemaname, tablename,
-         bloat_size, table_size, (bloat_size / table_size) * 100 as bloat_ratio 
-      FROM pgstattuple.schema_bloat
-   ) sub_query
-   WHERE bloat_ratio > 10
-   ORDER BY bloat_ratio DESC;
-   ```
-
-- Reclaim storage space
-
-Reducing the bloat size in PostgreSQL tables involves reclaiming wasted storage space. Here are two approaches:
-
-  1. **VACUUM**: The `VACUUM` command helps clean up dead rows and compact the space used by the table. Use the following command to clean up the impacted table:
-
-      ```
-      VACUUM VERBOSE ANALYZE <schema_name>.<table_name>;
-      ```
-
-  2. **REINDEX**: If the issue persists after using `VACUUM`, consider REINDEXing the table. This command rebuilds the table's indexes, which can improve query performance and reduce bloat. It can be more intrusive than `VACUUM`, be sure you understand its implications before running:
-
-      ```
-      REINDEX TABLE <schema_name>.<table_name>;
-      ```
-
-- Monitor the bloat size
-
-Continue monitoring the bloat size in your PostgreSQL tables by regularly checking the `postgres_table_bloat_size_perc` alert on Netdata.
-
-### Useful resources
-
-1. [How to monitor and fix Database bloats in PostgreSQL?](https://blog.netdata.cloud/postgresql-database-bloat/)