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[SPARK-4213][SQL] ParquetFilters - No support for LT, LTE, GT, GTE operators
Following description is quoted from JIRA: When I issue a hql query against a HiveContext where my predicate uses a column of string type with one of LT, LTE, GT, or GTE operator, I get the following error: scala.MatchError: StringType (of class org.apache.spark.sql.catalyst.types.StringType$) Looking at the code in org.apache.spark.sql.parquet.ParquetFilters, StringType is absent from the corresponding functions for creating these filters. To reproduce, in a Hive 0.13.1 shell, I created the following table (at a specified DB): create table sparkbug ( id int, event string ) stored as parquet; Insert some sample data: insert into table sparkbug select 1, '2011-06-18' from <some table> limit 1; insert into table sparkbug select 2, '2012-01-01' from <some table> limit 1; Launch a spark shell and create a HiveContext to the metastore where the table above is located. import org.apache.spark.sql._ import org.apache.spark.sql.SQLContext import org.apache.spark.sql.hive.HiveContext val hc = new HiveContext(sc) hc.setConf("spark.sql.shuffle.partitions", "10") hc.setConf("spark.sql.hive.convertMetastoreParquet", "true") hc.setConf("spark.sql.parquet.compression.codec", "snappy") import hc._ hc.hql("select * from <db>.sparkbug where event >= '2011-12-01'") A scala.MatchError will appear in the output. Author: Kousuke Saruta <sarutak@oss.nttdata.co.jp> Closes #3083 from sarutak/SPARK-4213 and squashes the following commits: 4ab6e56 [Kousuke Saruta] WIP b6890c6 [Kousuke Saruta] Merge branch 'master' of git://git.apache.org/spark into SPARK-4213 9a1fae7 [Kousuke Saruta] Fixed ParquetFilters so that compare Strings
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- sql/core/src/main/scala/org/apache/spark/sql/parquet/ParquetFilters.scala 324 additions, 11 deletions...n/scala/org/apache/spark/sql/parquet/ParquetFilters.scala
- sql/core/src/test/scala/org/apache/spark/sql/parquet/ParquetQuerySuite.scala 40 additions, 0 deletions...cala/org/apache/spark/sql/parquet/ParquetQuerySuite.scala
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