[GitHub] [incubator-kyuubi] cfmcgrady commented on issue #3794: [Improvement][Beeline] Improve the data interchange performance via Arrow serialization/deserialization

[GitBox <gi...@apache.org>]

cfmcgrady commented on issue #3794:
URL: https://github.com/apache/incubator-kyuubi/issues/3794#issuecomment-1309768734

   # Local Test
   
   ## Input Dataset
   
   ```scala
   spark.range(1000000)
     .selectExpr("cast(id as int) as c1", "cast(id as int) as c2")
     .selectExpr("c1", "concat(c2, 'xyz') as c2")
     .write
     .save("/tmp/parquet/t4")
   ```
   
   ## Query
   
   cat /tmp/a.sql
   
   ```
   select * from parquet.`/tmp/parquet/t4`;
   ```
   
   ## Beeline command
   
   ```
   bin/beeline -u 'jdbc:hive2://0.0.0.0:10009/;' -f /tmp/a.sql > /dev/null
   ```
   
   ## Result
   
   - w/ Arrow
   
   ```
   1,000,000 rows selected (5.411 seconds)
   ```
   
   - w/o Arrow(thrift)
   
   ```
   1,000,000 rows selected (8.716 seconds)
   ```
   


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