nchammas opened a new pull request #26755: [SPARK-30113][SQL][Python] Expose mergeSchema option in PySpark's ORC APIs URL: https://github.com/apache/spark/pull/26755 ### What changes were proposed in this pull request? This PR is a follow-up to #24043 and cousin of #26730. It exposes the `mergeSchema` option directly in the ORC APIs. ### Why are the changes needed? So the Python API matches the Scala API. ### Does this PR introduce any user-facing change? Yes, it adds a new option directly in the ORC reader method signatures. ### How was this patch tested? I tested this manually as follows: ``` >>> spark.range(3).write.orc('test-orc') >>> spark.range(3).withColumnRenamed('id', 'name').write.orc('test-orc/nested') >>> spark.read.orc('test-orc', recursiveFileLookup=True, mergeSchema=True) DataFrame[id: bigint, name: bigint] >>> spark.read.orc('test-orc', recursiveFileLookup=True, mergeSchema=False) DataFrame[id: bigint] >>> spark.conf.set('spark.sql.orc.mergeSchema', True) >>> spark.read.orc('test-orc', recursiveFileLookup=True) DataFrame[id: bigint, name: bigint] >>> spark.read.orc('test-orc', recursiveFileLookup=True, mergeSchema=False) DataFrame[id: bigint] ```
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