pg-index-health is a Java library for analyzing and maintaining indexes and tables health in PostgreSQL databases.

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.

Supports Java 11 and above
For Java 8 compatible version take a look at release 0.7.0 and lower

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

1. Invalid (broken) indexes (sql).
2. Duplicated (completely identical) indexes (sql).
3. Intersected (partially identical) indexes (sql).
4. Unused indexes (sql).
5. Foreign keys without associated indexes (sql).
6. Indexes with null values (sql).
7. Tables with missing indexes (sql).
8. Tables without primary key (sql).
9. Indexes bloat (sql).
10. Tables bloat (sql).
11. Tables without description (sql).
12. Columns without description (sql).
13. Columns with json type (sql).
14. Columns of serial types that are not primary keys (sql).
15. Functions without description (sql).
16. Indexes with boolean (sql).
17. Tables with not valid constraints (sql).
18. B-tree indexes on array columns (sql).

For raw sql queries see pg-index-health-sql project.

pg_index_health utilizes the Cumulative Statistics System (formerly known as PostgreSQL's statistics collector).
You can call pg_stat_reset() on each host to reset all statistics counters for the current database to zero but the best way to do it is to use DatabaseManagement::resetStatistics() method.

Using Gradle:

implementation 'io.github.mfvanek:pg-index-health:0.11.1'

implementation("io.github.mfvanek:pg-index-health:0.11.1")

Using Maven:

<dependency>
  <groupId>io.github.mfvanek</groupId>
  <artifactId>pg-index-health</artifactId>
  <version>0.11.1</version>
</dependency>

• Index health in PostgreSQL through the eyes of a Java developer

There are three main scenarios of using pg-index-health in your projects:

• unit\functional testing;
• collecting indexes health data and monitoring bloat;
• analysis of database configuration.

All these cases are covered with examples in the pg-index-health-demo project.

There is a Spring Boot starter pg-index-health-test-starter for unit/integration testing as well.
More examples you can find in pg-index-health-spring-boot-demo project.

Using Gradle:

testImplementation 'io.github.mfvanek:pg-index-health-test-starter:0.11.1'

testImplementation("io.github.mfvanek:pg-index-health-test-starter:0.11.1")

Using Maven:

<dependency>
    <groupId>io.github.mfvanek</groupId>
    <artifactId>pg-index-health-test-starter</artifactId>
    <version>0.11.1</version>
    <scope>test</scope>
</dependency>

• Starting from 0.9.0.1 added support for Spring Boot 3.0
• Starting from 0.10.2 added support for Spring Boot 3.2

• If you have any question or a problem with the library, please file an issue.
• Contributions are always welcome! Please see contributing guide for more details.
• We utilize Testcontainers for testing pg-index-health. So you need to have Docker installed on your machine.