yucai created SPARK-25207:
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Summary: Case-insensitve field resolution for filter pushdown when
reading Parquet
Key: SPARK-25207
URL: https://issues.apache.org/jira/browse/SPARK-25207
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.4.0
Reporter: yucai
Currently, filter pushdown will not work if Parquet schema and Hive metastore
schema are in different letter cases even spark.sql.caseSensitive is false.
Like the below case:
{code:java}
spark.range(10).write.parquet("/tmp/data")
sql("DROP TABLE t")
sql("CREATE TABLE t (ID LONG) USING parquet LOCATION '/tmp/data'")
sql("select * from t where id > 0").show{code}
No filter will be pushed down.
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