July 30, 2023

tPostgresPlusCommit – Docs for ESB 7.x

tPostgresPlusCommit

Commits in one go a global transaction, using a unique connection, instead of doing
that on every row or every batch and thus improves performance.

The tPostgresPlusCommit validates the data processed
through the Job into the connected DB.

tPostgresPlusCommit Standard properties

These properties are used to configure tPostgresPlusCommit running in the Standard Job framework.

The Standard
tPostgresPlusCommit component belongs to the Databases family.

The component in this framework is available in all Talend
products
.

Note: This component is a specific version of a dynamic database
connector. The properties related to database settings vary depending on your database
type selection. For more information about dynamic database connectors, see Dynamic database components.

Basic settings

Database

Select a type of database from the list and click
Apply.

Component list

Select the tPostgresPlusConnection component in the list if
more than one connection are planned for the current Job.

Close Connection

This check box is selected by default. It allows you to close the
database connection once the commit is done. Clear this check box to
continue to use the selected connection once the component has
performed its task.

Warning:

If you want to use a Row
>

Main
connection to link tPostgresPlusCommit to your Job, your data
will be committed row by row. In this case, do not select
the Close connection check
box or your connection will be closed before the end of your
first row commit.

Advanced settings

tStat
Catcher
Statistics

Select this check box to collect log data at the component
level.

Enable parallel execution

Select this check box to perform high-speed data processing, by treating
multiple data flows simultaneously. Note that this feature depends on the database or
the application ability to handle multiple inserts in parallel as well as the number of
CPU affected. In the Number of parallel executions
field, either:

  • Enter the number of parallel executions desired.
  • Press Ctrl + Space and select the
    appropriate context variable from the list. For further information, see
    Talend Studio User Guide
    .

Note that when parallel execution is enabled, it is not possible to use global
variables to retrieve return values in a subjob.

  • The Action on
    table
    field is not available with the
    parallelization function. Therefore, you must use a tCreateTable component if you
    want to create a table.
  • When parallel execution is enabled, it is not
    possible to use global variables to retrieve return values in a
    subjob.

Usage

Usage rule

This component is more commonly used with other tPostgresPlus* components, especially
with the tPostgresPlusConnection
and tPostgresPlusRollback
components.

Dynamic settings

Click the [+] button to add a row in the table
and fill the Code field with a context
variable to choose your database connection dynamically from multiple
connections planned in your Job. This feature is useful when you need to
access database tables having the same data structure but in different
databases, especially when you are working in an environment where you
cannot change your Job settings, for example, when your Job has to be
deployed and executed independent of Talend Studio.

Once a dynamic parameter is defined, the Component List box in the Basic
settings
view becomes unusable.

For examples on using dynamic parameters, see Reading data from databases through context-based dynamic connections and Reading data from different MySQL databases using dynamically loaded connection parameters. For more information on Dynamic
settings
and context variables, see Talend Studio
User Guide.

Related scenario

For tPostgresPlusCommit related scenario, see Inserting data in mother/daughter tables


Document get from Talend https://help.talend.com
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