ArrowEvalPython Logical Operator¶

ArrowEvalPython is a BaseEvalPython logical operator to execute PythonUDFs with SQL_SCALAR_PANDAS_UDF and SQL_SCALAR_PANDAS_ITER_UDF eval types.

ArrowEvalPython is planned to ArrowEvalPythonExec physical operator (by PythonEvals execution planning strategy).

Creating Instance¶

ArrowEvalPython takes the following to be created:

• PythonUDFs
• Result Attributes
• Child LogicalPlan
• PythonUDF Eval Type

ArrowEvalPython is created when:

• ExtractPythonUDFs logical optimization is executed (with SQL_SCALAR_PANDAS_UDF and SQL_SCALAR_PANDAS_ITER_UDF PythonUDFs)

PythonUDF Eval Type¶

ArrowEvalPython is given a PythonUDF eval type when created that can be one of the two int values.

Logical Optimizations¶

ArrowEvalPython is optimized using the following logical optimizations:

• PushPredicateThroughNonJoin (canPushThrough)
• LimitPushDown