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Posted to issues@spark.apache.org by "Yuming Wang (JIRA)" <ji...@apache.org> on 2018/06/30 19:09:00 UTC
[jira] [Created] (SPARK-24706) Support ByteType and ShortType
pushdown to parquet
Yuming Wang created SPARK-24706:
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Summary: Support ByteType and ShortType pushdown to parquet
Key: SPARK-24706
URL: https://issues.apache.org/jira/browse/SPARK-24706
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.4.0
Reporter: Yuming Wang
Benchmark result:
{noformat}
###############################[ Pushdown benchmark for tinyint ]################################
Java HotSpot(TM) 64-Bit Server VM 1.8.0_151-b12 on Mac OS X 10.12.6
Intel(R) Core(TM) i7-7820HQ CPU @ 2.90GHz
Select 1 tinyint row (value = CAST(63 AS tinyint)): Best/Avg Time(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------
Parquet Vectorized 4307 / 4575 3.7 273.8 1.0X
Parquet Vectorized (Pushdown) 227 / 241 69.4 14.4 19.0X
Native ORC Vectorized 3646 / 3727 4.3 231.8 1.2X
Native ORC Vectorized (Pushdown) 736 / 744 21.4 46.8 5.9X
Select 10% tinyint rows (value < 12): Best/Avg Time(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------
Parquet Vectorized 5209 / 5843 3.0 331.2 1.0X
Parquet Vectorized (Pushdown) 1296 / 1759 12.1 82.4 4.0X
Native ORC Vectorized 4455 / 4594 3.5 283.2 1.2X
Native ORC Vectorized (Pushdown) 1736 / 1813 9.1 110.4 3.0X
Select 50% tinyint rows (value < 63): Best/Avg Time(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------
Parquet Vectorized 8362 / 8394 1.9 531.7 1.0X
Parquet Vectorized (Pushdown) 6303 / 6530 2.5 400.7 1.3X
Native ORC Vectorized 7962 / 8113 2.0 506.2 1.1X
Native ORC Vectorized (Pushdown) 6680 / 7556 2.4 424.7 1.3X
Select 90% tinyint rows (value < 114): Best/Avg Time(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------
Parquet Vectorized 11572 / 11715 1.4 735.7 1.0X
Parquet Vectorized (Pushdown) 11198 / 11326 1.4 712.0 1.0X
Native ORC Vectorized 11041 / 11209 1.4 702.0 1.0X
Native ORC Vectorized (Pushdown) 11104 / 11472 1.4 706.0 1.0X
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