sandeep-katta commented on a change in pull request #32194:
URL: https://github.com/apache/spark/pull/32194#discussion_r614535186
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/SchemaPruning.scala
##########
@@ -36,7 +38,8 @@ object SchemaPruning {
.reduceLeft(_ merge _)
val dataSchemaFieldNames = dataSchema.fieldNames.toSet
val mergedDataSchema =
- StructType(mergedSchema.filter(f =>
dataSchemaFieldNames.contains(f.name)))
+ StructType(mergedSchema.filter(f =>
dataSchemaFieldNames.exists(resolver(_, f.name))
Review comment:
Below query should fail without this fix
```
val inputPath = "/Users/xyz/data/testcaseInsensitivity"
val output_path = "/Users/xyz/output"
spark.range(10).write.format("parquet").save(inputPath)
def process_row(microBatch: DataFrame, batchId: Long): Unit = {
val df = microBatch.select($"ID".alias("other")) // Doesn't work
df.write.format("parquet").mode("append").save(output_path)
}
val schema = new StructType().add("id", LongType)
val stream_df =
spark.readStream.schema(schema).format("parquet").load(inputPath)
stream_df.writeStream.trigger(Trigger.Once).foreachBatch(process_row _)
.start().awaitTermination()
```
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
