# tPostgresqlInput

Executes a DB query with a strictly defined order which must correspond to the schema definition. Then it passes on the field list to the next component via a Main row link.

The tPostgresqlInput reads a database and extracts fields based on a query.

### In this section

* [tPostgresqlInput Standard properties](https://help.qlik.com/talend/en-US/components/7.2/postgresql/tpostgresqlinput-standard-properties)