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  1. Preface
  2. Introduction to PostgreSQL Connector
  3. Connections for PostgreSQL
  4. Mappings and mapping tasks with PostgreSQL Connector
  5. PostgreSQL objects in mapping tasks
  6. Lookup transformation
  7. SQL transformation
  8. Migrating a mapping
  9. PostgreSQL SQL ELT optimization
  10. Data type reference

PostgreSQL Connector

PostgreSQL Connector

PostgreSQL targets in mappings

PostgreSQL targets in mappings

To write data to PostgreSQL, configure a PostgreSQL object as the target in a mapping.
Specify the name and description of the PostgreSQL target. Configure the target and advanced properties for the target object.
The following table describes the target properties that you can configure in a Target transformation:
Property
Description
Connection
Name of the target connection, or create a connection parameter.
If you want to overwrite the target connection properties at runtime, select the
Allow parameter to be overridden at run time
option. Specify the parameter file directory and name in the advanced session properties.
Target Type
Type of the target object. Select Single Object or Parameter.
Object
Name of the target object. You can select an existing target object from the displayed list or you can create a target at runtime. When you want to create a target at runtime, specify the target object name and the path for the target object.
For a list of supported data types that you can write to PostgreSQL using the
Create New at Runtime
option, see the Data Type References chapter.
Parameter
A parameter file where you define values that you want to update without having to edit the task.
Select an existing parameter for the target object or click
New Parameter
to define a new parameter for the target object.
The
Parameter
property appears only if you select parameter as the target type.
If you want to overwrite the target object at runtime, select the
Allow parameter to be overridden at run time
option.
When the task runs, the Secure Agent uses the parameters from the file that you specify in the advanced session properties.
Operation
Type of the target operation.
Select Insert, Upsert, Update, Delete, or Data Driven.
To perform an upsert operation, you need to set the target advanced property
Update Mode
to
Update Else Insert
.
Data Driven Condition
Enables you to define expressions that flag rows for an insert, update, delete, or reject operation.
Appears only when the operation type is
Data Driven
.
When you configure the
DD_REJECT
operation in the data driven mode to reject data to PostgreSQL, the rejected records are not written to the error files and the session log shows the number of rejected rows as zero.
Update Columns
Specify the columns that you want to use as a logical primary key for performing update, upsert, and delete operations on the target.
This field is not required if the target table already has a primary key. If the target table does not have a primary key, ensure that the columns selected in the
Update Columns
field has a unique constraint for the upsert operation.
This property is not applicable for the insert operation.
The following table describes the PostgreSQL advanced target properties:
Property
Description
Update Mode
Specifies the mode to write data to PostgreSQL target. You can specify the following modes:
  • Update As Update. Updates all rows flagged for update if the entries exist.
  • Update Else Insert. Updates all rows flagged for update if the entries exist in the target. If the entries do not exist, the Secure Agent inserts the entries.
Override Target Query
An SQL statement to override the default update query that the Secure Agent generates for the update operation.
Schema Name
Overrides the schema name of the target object.
Target Table Name
Overrides the default PostgreSQL target table name.
Pre-SQL
The pre-SQL commands to run a query before you write data to PostgreSQL.
You can partially parameterize pre-SQL with values specified in a parameter file.
Post-SQL
The post-SQL commands to run a query after you write data to PostgreSQL.
You can partially parameterize post-SQL with values specified in a parameter file.
Truncate Target
The Secure Agent truncates the target before writing the data.
Enable target bulk load
Performs bulk upload when you configure an insert operation to write to PostgreSQL. Select this option to improve the performance of inserting data in bulk to PostgreSQL.
Default is unselected.
When you enable the target bulk mode to insert data to PostgreSQL, error files are not generated for rejected records.
Batch size
The number of rows that the Secure Agent writes in a single batch to PostgreSQL. Specify a batch size value that is greater than zero.
Applicable if you select the
Enable target bulk load
option.
Reject File Directory
The directory that stores the rejected files.
Specify the directory where you want to store the rejected files.
Reject File Name
Name of the rejected file that is stored in the reject file directory.
Forward Rejected Rows
Not applicable.

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