# ELT PostgreSQL components

| [tELTPostgresqlInput](https://help.qlik.com/talend/en-US/components/8.0/elt-postgresql/teltpostgresqlinput) | Provides the Postgresql table schema that will be used by the<br>tELTPostgresqlMap component to generate the SQL SELECT<br>statement. |
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| [tELTPostgresqlMap](https://help.qlik.com/talend/en-US/components/8.0/elt-postgresql/teltpostgresqlmap) | Builds the SQL SELECT statement using the table schema(s) provided by one or more<br>tELTPostgresqlInput components. |
| [tELTPostgresqlOutput](https://help.qlik.com/talend/en-US/components/8.0/elt-postgresql/teltpostgresqloutput) | Performs the action (insert, update or delete) on data in the specified<br>Postgresql table through the SQL statement generated by the<br>tELTPostgresqlMap component. |