Joiner Transformation in the Hadoop Environment
The Joiner transformation processing in the Hadoop environment depends on the engine that runs the transformation.
Joiner Transformation Support on the Blaze Engine
Mapping validation fails in the following situations:
- •The transformation contains an inequality join and map-side join is disabled.
- •The Joiner transformation expression references an unconnected Lookup transformation.
Map-side join is disabled when the Joiner transformation is configured for detail outer join or full outer join.
Joiner Transformation Support on the Spark Engine
Mapping validation fails in the following situations:
- •Case sensitivity is disabled.
- •The join condition is of binary data type or contains binary expressions.
Joiner Transformation Support on the Hive Engine
Mapping validation fails in the following situations:
- •The transformation contains an inequality join.