How to load a CSV file into a table

To read data from a CSV file, use the read_csv_auto function in the FROM clause of a query.

SELECT * FROM read_csv_auto('input.csv');

To create a new table using the result from a query, use CREATE TABLE AS from a SELECT statement.

CREATE TABLE new_tbl AS SELECT * FROM read_csv_auto('input.csv');

To load data into an existing table from a query, use INSERT INTO from a SELECT statement.

INSERT INTO tbl SELECT * FROM read_csv_auto('input.csv');

Alternatively, the COPY statement can also be used to load data from a CSV file into an existing table.

COPY tbl FROM 'input.csv';