# tELTPostgresqlInput Provides the Postgresql table schema that will be used by the tELTPostgresqlMap component to generate the SQL SELECT statement. The three ELT Postgresql components are closely related, in terms of their operating conditions. These components should be used to handle Postgresql database table schemas to generate SQL statements, including clauses, which are to be executed in the database output table defined. ## tELTPostgresqlInput Standard properties These properties are used to configure tELTPostgresqlInput running in the Standard Job framework. The Standard tELTPostgresqlInput component belongs to the ELT family. The component in this framework is available in all Talend products. ## Basic settings | Properties | Description | | --- | --- | | Schema and Edit
schema |

A schema is a row description, it defines the nature and number of fields to be processed. The schema is either built-in or remotely stored in the Repository. The Schema defined is then passed on to the ELT Mapper to be included to the Insert SQL statement.

Click Edit schema to make changes to the schema. If the current schema is of the Repository type, three options are available:
- View schema: choose this option to view the schema only.
- Change to built-in property: choose this option to change the schema to Built-in for local changes.
- Update repository connection: choose this option to change the schema stored in the repository and decide whether to propagate the changes to all the Jobs upon completion.
  
  If you just want to propagate the changes to the current Job, you can select No upon completion and choose this schema metadata again in the Repository Content window.
Built-in: The schema is created and stored locally for this component only. For more information about a component schema in its Basic settings tab, see Basic settings tab.
Repository: The schema already exists and is stored in the Repository, hence can be reused. For more information about a component schema in its Basic settings tab, see Basic settings tab.

| | Default Table Name | Enter the default table name, between double quotation marks. | | Default Schema Name | Enter the default schema name, between double quotation marks. | ## Advanced settings | Properties | Description | | --- | --- | | tStatCatcher Statistics | Select this check box to gather the Job processing metadata at a Job
level as well as at each component level. | ## Global Variables | Variables | Description | | --- | --- | | Global Variables | ERROR\_MESSAGE: the error message generated by the
component when an error occurs. This is an After variable and it returns a string. This
variable functions only if the Die on error checkbox is
cleared, if the component has this checkbox.

A Flow variable functions during the execution of a component
while an After variable functions after the execution of the component.

To fill up a field or expression with a variable, press Ctrl+Space to access the variable list and choose the variable to use from
it.

For more information about variables, see [Using contexts and variables](https://help.qlik.com/talend/r/en-US/8.0/studio-user-guide/contexts-and-variables). | ## Usage | Usage guidance | Description | | --- | --- | | **Usage rule** | tELTPostgresqlInput is to be used
along with the tELTPostgresqlMap. Note
that the Output link to be used with these components must correspond
strictly to the syntax of the table name

Information noteNote:

Note that the ELT components do not handle actual data flow but
only schema information. |