SELECT INTO SQL - Language Statements SELECT INTO create a new table from the results of a query SELECT INTO SELECT [ ALL | DISTINCT [ ON ( expression [, ...] ) ] ] * | expression [ AS output_name ] [, ...] INTO [ TEMPORARY | TEMP ] [ TABLE ] new_table [ FROM from_item [, ...] ] [ WHERE condition ] [ GROUP BY expression [, ...] ] [ HAVING condition [, ...] ] [ { UNION | INTERSECT | EXCEPT } [ ALL ] select ] [ ORDER BY expression [ ASC | DESC | USING operator ] [, ...] ] [ LIMIT { count | ALL } ] [ OFFSET start ] [ FOR UPDATE [ OF tablename [, ...] ] ] SELECT INTO creates a new table and fills it with data computed by a query. The data is not returned to the client, as it is with a normal SELECT. The new table's columns have the names and data types associated with the output columns of the SELECT. TEMPORARY or TEMP If specified, the table is created as a temporary table. Refer to for details. new_table The name (optionally schema-qualified) of the table to be created. All other parameters are described in detail under . is functionally similar to SELECT INTO. CREATE TABLE AS is the recommended syntax, since this form of SELECT INTO is not available in ECPG or PL/pgSQL, because they interpret the INTO clause differently. Furthermore, CREATE TABLE AS offers a superset of the functionality provided by SELECT INTO. Prior to PostgreSQL 7.5, the table created by SELECT INTO always included OIDs. Furthermore, these OIDs were newly generated: they were distinct from the OIDs of any of the rows in the source tables of the SELECT INTO statement. Therefore, if SELECT INTO was frequently executed, the OID counter would be rapidly incremented. As of PostgreSQL 7.5, the inclusion of OIDs in the table created by SELECT INTO is controlled by the default_with_oids configuration variable. This variable currently defaults to true, but will likely default to false in a future release of PostgreSQL. The SQL standard uses SELECT INTO to represent selecting values into scalar variables of a host program, rather than creating a new table. This indeed is the usage found in ECPG (see ) and PL/pgSQL (see ). The PostgreSQL usage of SELECT INTO to represent table creation is historical. It's best to use CREATE TABLE AS for this purpose in new code. (CREATE TABLE AS isn't standard either, but it's less likely to cause confusion.)