DROP INDEX SQL - Language Statements DROP INDEX Removes an index from a database 1999-07-20 DROP INDEX index_name 1998-04-15 index_name The name of the index to remove. 1998-04-15 DROP The message returned if the index is successfully dropped. ERROR: index "index_name" nonexistent This message occurs if index_name is not an index in the database. 1998-04-15 DROP INDEX drops an existing index from the database system. To execute this command you must be the owner of the index. 1998-04-15 DROP INDEX is a Postgres language extension. Refer to for information on how to create indexes. This command will remove the title_idx index: DROP INDEX title_idx; 1998-04-15 SQL92 defines commands by which to access a generic relational database. Indexes are an implementation-dependent feature and hence there are no index-specific commands or definitions in the SQL92 language.