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  • Data Integration Connectors
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Table of Contents

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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

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PostgreSQL sources in mapping tasks

PostgreSQL sources in
mapping
 tasks

For PostgreSQL source connections used in template-based
mapping
 tasks, you can configure advanced properties in the Sources page.
You can configure the following advanced properties:
Property
Description
Pre-SQL
The pre-SQL commands to run a query before you read data from 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 a target.
You can partially parameterize post-SQL with values specified in a parameter file.
Fetch Size
Determines the number of rows to read in one resultant set from PostgreSQL. Specifying a number limits the number of rows to fetch with each trip to the database and avoids unnecessary memory consumption.
You can specify a maximum fetch size of 2147483647. Default is 100000.
Schema Name
Overrides the schema name of the source object.
Source Table Name
Overrides the default PostgreSQL source table name.
Tracing Level
Sets the amount of details that appear in the log file.
You can choose terse, normal, verbose initialization, or verbose data.
Default is normal.
SQL Override
The SQL statement to override the default query generated from the specified source type to read data from the PostgreSQL source.
You can partially parameterize SQL override with values specified in a parameter file.
Ensure that the list of selected columns, data types, and the order of the columns that appear in the query matches the columns, data types, and order in which they appear in the source object.
SQL override is not applicable when you enable partitioning. If you specify an SQL override and configure partitioning, the mapping fails.
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