tELTVerticaOutput Standard properties

Action on data

On the data of the table defined, you can perform one of the following operations:

• Insert: Add new entries to the table. If duplicates are found, Job stops.

• Update: Updates entries in the table.

• Delete: Deletes entries which correspond to the entry flow.

Schema and Edit schema

A schema is a row description. It defines the number of fields (columns) to be processed and passed on to the next component. When you create a Spark Job, avoid the reserved word line when naming the fields.

Built-In: You create and store the schema locally for this component only.

Repository: You have already created the schema and stored it in the Repository. You can reuse it in various projects and Job designs.

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.

Sync columns

Click this button to retrieve the schema from the previous component connected in the Job.

Where clauses (for UPDATE and DELETE only)

Enter a clause to filter the data to be updated or deleted during the update or delete operation.

This field is available only when Update or Delete is selected from the Action on data drop-down list.

Default Table Name

Type in the default table name.

Default Schema Name

Type in the default schema name.

Table name from connection name is variable

Select this check box when the name of the connection to this component is set to a variable, such as a context variable.

Use different table name

Select this check box to use a different output table name.

Table name

Type in the output table name.

This field is available only when the Use different table name check box is selected.

Direct

Select this check box to write the data directly to disk, bypassing memory.

This check box is not visible when the Set SQL Label check box is selected.

Set SQL Label

Select this check box and specify the label that identifies the query. For more information, see How to label queries for profiling.

This check box is not visible when the Direct check box is selected.

tStatCatcher Statistics

Select this check box to gather the Job processing metadata at the Job level as well as at each component level.

Global Variables

NB_LINE: the number of rows processed. This is an After variable and it returns an integer.

NB_LINE_INSERTED: the number of rows inserted. This is an After variable and it returns an integer.

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 check box is cleared, if the component has this check box.

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 further information about variables, see Talend Studio User Guide.

Usage rule

tELTVerticaOutput is used along with the tELTVerticaMap. Note that the Output link to be used with these components must correspond strictly to the syntax of the table name.