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https://github.com/mfvanek/pg-index-health-sql

pg-index-health-sql is a set of sql-queries for analyzing and maintaining indexes and tables health in Postgresql databases.
https://github.com/mfvanek/pg-index-health-sql

hacktoberfest health-check indexes postgres postgresql postgresql-monitoring sql

Last synced: 12 days ago
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pg-index-health-sql is a set of sql-queries for analyzing and maintaining indexes and tables health in Postgresql databases.

Host: GitHub
URL: https://github.com/mfvanek/pg-index-health-sql
Owner: mfvanek
License: apache-2.0
Created: 2020-03-09T13:26:52.000Z (over 4 years ago)
Default Branch: master
Last Pushed: 2024-10-17T19:55:54.000Z (21 days ago)
Last Synced: 2024-10-18T02:38:48.051Z (21 days ago)
Topics: hacktoberfest, health-check, indexes, postgres, postgresql, postgresql-monitoring, sql
Homepage:
Size: 89.8 KB
Stars: 76
Watchers: 6
Forks: 10
Open Issues: 2
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE

Awesome Lists containing this project

README

        # pg-index-health-sql

**pg-index-health-sql** is a set of sql-queries for analyzing and maintaining indexes and tables health in Postgresql databases.

[![Lint Code Base](https://github.com/mfvanek/pg-index-health-sql/actions/workflows/linter.yml/badge.svg)](https://github.com/mfvanek/pg-index-health-sql/actions/workflows/linter.yml)

[![License: Apache 2.0](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/mfvanek/pg-index-health-sql/blob/master/LICENSE "Apache License 2.0")

## Supported PostgreSQL versions

[![PostgreSQL 12](https://img.shields.io/badge/PostgreSQL-12-green.svg)](https://www.postgresql.org/about/news/1976/ "PostgreSQL 12")

[![PostgreSQL 13](https://img.shields.io/badge/PostgreSQL-13-green.svg)](https://www.postgresql.org/about/news/postgresql-13-released-2077/ "PostgreSQL 13")

[![PostgreSQL 14](https://img.shields.io/badge/PostgreSQL-14-green.svg)](https://www.postgresql.org/about/news/postgresql-14-released-2318/ "PostgreSQL 14")

[![PostgreSQL 15](https://img.shields.io/badge/PostgreSQL-15-green.svg)](https://www.postgresql.org/about/news/postgresql-15-released-2526/ "PostgreSQL 15")

[![PostgreSQL 16](https://img.shields.io/badge/PostgreSQL-16-green.svg)](https://www.postgresql.org/about/news/postgresql-16-released-2715/ "PostgreSQL 16")

[![PostgreSQL 17](https://img.shields.io/badge/PostgreSQL-17-green.svg)](https://www.postgresql.org/about/news/postgresql-17-released-2936/ "PostgreSQL 17")

### Support for previous versions of PostgreSQL

Compatibility with PostgreSQL versions **9.6**, **10** and **11** is no longer guaranteed, but it is very likely.  

We focus only on the currently maintained versions of PostgreSQL.  

For more information please see [PostgreSQL Versioning Policy](https://www.postgresql.org/support/versioning/).

## Available checks

**pg-index-health-sql** allows you to detect the following problems:

1. Invalid (broken) indexes ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/invalid_indexes.sql)).

2. Duplicated (completely identical) indexes ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/duplicated_indexes.sql)).

3. Intersected (partially identical) indexes ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/intersected_indexes.sql)).

4. Unused indexes ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/unused_indexes.sql)).

5. Foreign keys without associated indexes ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/foreign_keys_without_index.sql)).

6. Indexes with null values ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/indexes_with_null_values.sql)).

7. Tables with missing indexes ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/tables_with_missing_indexes.sql)).

8. Tables without primary key ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/tables_without_primary_key.sql)).

9. Indexes [bloat](https://www.percona.com/blog/2018/08/06/basic-understanding-bloat-vacuum-postgresql-mvcc/) ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/bloated_indexes.sql)).

10. Tables [bloat](https://www.percona.com/blog/2018/08/06/basic-understanding-bloat-vacuum-postgresql-mvcc/) ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/bloated_tables.sql)).

11. Tables without [description](https://www.postgresql.org/docs/current/sql-comment.html) ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/tables_without_description.sql)).

12. Columns without [description](https://www.postgresql.org/docs/current/sql-comment.html) ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/columns_without_description.sql)).

13. Columns with [json](https://www.postgresql.org/docs/current/datatype-json.html) type ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/columns_with_json_type.sql)).

14. Columns of [serial types](https://www.postgresql.org/docs/current/datatype-numeric.html#DATATYPE-SERIAL) that are not primary keys ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/columns_with_serial_types.sql)).

15. Functions without [description](https://www.postgresql.org/docs/current/sql-comment.html) ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/functions_without_description.sql)).

16. Indexes [with boolean](https://habr.com/ru/companies/tensor/articles/488104/) ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/indexes_with_boolean.sql)).

17. Tables with [not valid constraints](https://habr.com/ru/articles/800121/) ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/not_valid_constraints.sql)).

18. B-tree indexes [on array columns](https://habr.com/ru/articles/800121/) ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/btree_indexes_on_array_columns.sql)).

19. [Sequence overflow](https://habr.com/ru/articles/800121/) ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/sequence_overflow.sql)).

20. Primary keys with [serial types](https://wiki.postgresql.org/wiki/Don't_Do_This#Don.27t_use_serial) ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/primary_keys_with_serial_types.sql)).

21. Duplicated (completely identical) foreign keys ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/duplicated_foreign_keys.sql)).

22. Intersected (partially identical) foreign keys ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/intersected_foreign_keys.sql)).

23. Objects with possible name overflow ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/possible_object_name_overflow.sql)).

24. Tables not linked to other tables ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/tables_not_linked_to_others.sql)).

25. Foreign keys [with unmatched column type](https://habr.com/ru/articles/803841/) ([sql](https://github.com/mfvanek/pg-index-health-sql/blob/master/sql/foreign_keys_with_unmatched_column_type.sql)).

## Local development

### Linting

#### macOS/Linux

To run super-linter locally:

```shell

docker run \

  -e RUN_LOCAL=true \

  -e USE_FIND_ALGORITHM=true \

  -e VALIDATE_SQLFLUFF=true \

  -v $(pwd):/tmp/lint \

  ghcr.io/super-linter/super-linter:slim-v7

```

#### Windows

Use `cmd` on Windows:

```shell

docker run ^

  -e RUN_LOCAL=true ^

  -e USE_FIND_ALGORITHM=true ^

  -e VALIDATE_SQLFLUFF=true ^

  -v "%cd%":/tmp/lint ^

  ghcr.io/super-linter/super-linter:slim-v7

```