# tPostgresqlInvalidRows

Extracts DB rows that do not match a given data quality pattern, you can then implement any required correction.

The tPostgresqlInvalidRows checks database rows against specific Data Quality patterns (regular expression).

### In this section

* [tPostgresqlInvalidRows Standard properties](https://help.qlik.com/talend/en-US/components/7.2/postgresql/tpostgresqlinvalidrows-standard-properties?id=4658)