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NAME

       INSERT - create new rows in a table

SYNOPSIS

       [ WITH [ RECURSIVE ] with_query [, ...] ]
       INSERT INTO table [ ( column [, ...] ) ]
           { DEFAULT VALUES | VALUES ( { expression | DEFAULT } [, ...] ) [, ...] | query }
           [ RETURNING * | output_expression [ [ AS ] output_name ] [, ...] ]

DESCRIPTION

       INSERT inserts new rows into a table. One can insert one or more rows specified by value
       expressions, or zero or more rows resulting from a query.

       The target column names can be listed in any order. If no list of column names is given at
       all, the default is all the columns of the table in their declared order; or the first N
       column names, if there are only N columns supplied by the VALUES clause or query. The
       values supplied by the VALUES clause or query are associated with the explicit or implicit
       column list left-to-right.

       Each column not present in the explicit or implicit column list will be filled with a
       default value, either its declared default value or null if there is none.

       If the expression for any column is not of the correct data type, automatic type
       conversion will be attempted.

       The optional RETURNING clause causes INSERT to compute and return value(s) based on each
       row actually inserted. This is primarily useful for obtaining values that were supplied by
       defaults, such as a serial sequence number. However, any expression using the table's
       columns is allowed. The syntax of the RETURNING list is identical to that of the output
       list of SELECT.

       You must have INSERT privilege on a table in order to insert into it. If a column list is
       specified, you only need INSERT privilege on the listed columns. Use of the RETURNING
       clause requires SELECT privilege on all columns mentioned in RETURNING. If you use the
       query clause to insert rows from a query, you of course need to have SELECT privilege on
       any table or column used in the query.

PARAMETERS

       with_query
           The WITH clause allows you to specify one or more subqueries that can be referenced by
           name in the INSERT query. See Section 7.8, “WITH Queries (Common Table Expressions)”,
           in the documentation and SELECT(7) for details.

           It is possible for the query (SELECT statement) to also contain a WITH clause. In such
           a case both sets of with_query can be referenced within the query, but the second one
           takes precedence since it is more closely nested.

       table
           The name (optionally schema-qualified) of an existing table.

       column
           The name of a column in table. The column name can be qualified with a subfield name
           or array subscript, if needed. (Inserting into only some fields of a composite column
           leaves the other fields null.)

       DEFAULT VALUES
           All columns will be filled with their default values.

       expression
           An expression or value to assign to the corresponding column.

       DEFAULT
           The corresponding column will be filled with its default value.

       query
           A query (SELECT statement) that supplies the rows to be inserted. Refer to the
           SELECT(7) statement for a description of the syntax.

       output_expression
           An expression to be computed and returned by the INSERT command after each row is
           inserted. The expression can use any column names of the table. Write * to return all
           columns of the inserted row(s).

       output_name
           A name to use for a returned column.

OUTPUTS

       On successful completion, an INSERT command returns a command tag of the form

           INSERT oid count

       The count is the number of rows inserted. If count is exactly one, and the target table
       has OIDs, then oid is the OID assigned to the inserted row. Otherwise oid is zero.

       If the INSERT command contains a RETURNING clause, the result will be similar to that of a
       SELECT statement containing the columns and values defined in the RETURNING list, computed
       over the row(s) inserted by the command.

EXAMPLES

       Insert a single row into table films:

           INSERT INTO films VALUES
               ('UA502', 'Bananas', 105, '1971-07-13', 'Comedy', '82 minutes');

       In this example, the len column is omitted and therefore it will have the default value:

           INSERT INTO films (code, title, did, date_prod, kind)
               VALUES ('T_601', 'Yojimbo', 106, '1961-06-16', 'Drama');

       This example uses the DEFAULT clause for the date columns rather than specifying a value:

           INSERT INTO films VALUES
               ('UA502', 'Bananas', 105, DEFAULT, 'Comedy', '82 minutes');
           INSERT INTO films (code, title, did, date_prod, kind)
               VALUES ('T_601', 'Yojimbo', 106, DEFAULT, 'Drama');

       To insert a row consisting entirely of default values:

           INSERT INTO films DEFAULT VALUES;

       To insert multiple rows using the multirow VALUES syntax:

           INSERT INTO films (code, title, did, date_prod, kind) VALUES
               ('B6717', 'Tampopo', 110, '1985-02-10', 'Comedy'),
               ('HG120', 'The Dinner Game', 140, DEFAULT, 'Comedy');

       This example inserts some rows into table films from a table tmp_films with the same
       column layout as films:

           INSERT INTO films SELECT * FROM tmp_films WHERE date_prod < '2004-05-07';

       This example inserts into array columns:

           -- Create an empty 3x3 gameboard for noughts-and-crosses
           INSERT INTO tictactoe (game, board[1:3][1:3])
               VALUES (1, '{{" "," "," "},{" "," "," "},{" "," "," "}}');
           -- The subscripts in the above example aren't really needed
           INSERT INTO tictactoe (game, board)
               VALUES (2, '{{X," "," "},{" ",O," "},{" ",X," "}}');

       Insert a single row into table distributors, returning the sequence number generated by
       the DEFAULT clause:

           INSERT INTO distributors (did, dname) VALUES (DEFAULT, 'XYZ Widgets')
              RETURNING did;

       Increment the sales count of the salesperson who manages the account for Acme Corporation,
       and record the whole updated row along with current time in a log table:

           WITH upd AS (
             UPDATE employees SET sales_count = sales_count + 1 WHERE id =
               (SELECT sales_person FROM accounts WHERE name = 'Acme Corporation')
               RETURNING *
           )
           INSERT INTO employees_log SELECT *, current_timestamp FROM upd;

COMPATIBILITY

       INSERT conforms to the SQL standard, except that the RETURNING clause is a PostgreSQL
       extension, as is the ability to use WITH with INSERT. Also, the case in which a column
       name list is omitted, but not all the columns are filled from the VALUES clause or query,
       is disallowed by the standard.

       Possible limitations of the query clause are documented under SELECT(7).