pg_index

Overview

The pg_index stores information about indexes on tables. It mimics the pg_index PostgreSQL system catalog.

Columns

This table is designed for compatibility with tools that require PostgreSQL system tables, so it mostly has dummy data. Please note that not all columns in pg_index are applicable to every type of relation.

The following columns are available for querying in pg_index:

Column	Type	Description
indexrelid	int	This column represents OID of the index
indrelid	int	This column represents OID (Object ID) of the table on which the index is defined
indnatts	int	This column represents number of columns in the index
indnkeyatts	int	This column represents number of key columns in the index
indisunique	bool	The default value is false
indnullsnotdistinct	bool	unused
indisprimary	bool	unused
indisexclusion	bool	unused
indimmediate	bool	unused
indisclustered	bool	unused
indisvalid	bool	unused
indcheckxmin	bool	unused
indisready	bool	unused
indislive	bool	unused
indisreplident	bool	unused
indkey	int	unused
indcollation	int	unused
indclass	int	unused
indoption	int	unused
indexprs	int	unused
indpred	int	unused