The key range partitioning in Informatica distributes rows of data based on a port or set of ports that you define as the partition key.
Guidelines to create key ranges are mentioned below.
● The partition key must contain at least one port.
● The range for each port in the partition key should be specified.
● The Informatica PowerCenter standard date format can be used to enter dates in key ranges.
● The workflow manager does not validate overlapping string, numeric ranges, the gaps, or missing ranges.
When you define key range partitioning at a source qualifier transformation, the Informatica Integration Service defaults to pass-through partitioning if you change the SQL statement in the Source Qualifier transformation. If a row contains a null value in any column or falls outside of the key ranges then the integration service sends that row to the first partition.
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