| Query goal: | Find indexes that are used by the DBMS. |
| Notes about the query: | The query does not exclude indexes that have been created to enforce a constraint. |
| Query type: | General (Overview of some aspect of the database.) |
| Query license: | MIT License |
| Data source: | INFORMATION_SCHEMA+system catalog |
| SQL query: | Click on query to copy it
SELECT schemaname AS table_schema, relname AS table_name, indexrelname AS index_name, idx_scan FROM pg_stat_all_indexes INNER JOIN pg_index USING (indexrelid) WHERE idx_scan>0 AND schemaname NOT IN (SELECT schema_name FROM INFORMATION_SCHEMA.schemata WHERE schema_name<>'public' AND schema_owner='postgres' AND schema_name IS NOT NULL) ORDER BY idx_scan DESC; |
| Collection name | Collection description |
|---|---|
| Find problems by overview | Queries that results point to different aspects of database that might have problems. A human reviewer has to decide based on the results as to whether there are problems or not . |
| Category name | Category description |
|---|---|
| Data at the database physical level | Queries of this category provide information about the disk usage. |
| Performance | Queries of this category provide information about indexes in a database. |