You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Yuming Wang (Jira)" <ji...@apache.org> on 2019/10/16 02:41:00 UTC
[jira] [Created] (SPARK-29485) Improve BooleanSimplification
performance
Yuming Wang created SPARK-29485:
-----------------------------------
Summary: Improve BooleanSimplification performance
Key: SPARK-29485
URL: https://issues.apache.org/jira/browse/SPARK-29485
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 3.0.0
Reporter: Yuming Wang
How to reproduce:
{code:scala}
val columns = (0 until 1000).map{ i => s"id as id$i"}
spark.range(1).selectExpr(columns : _*).write.saveAsTable("t1")
spark.range(1).selectExpr(columns : _*).write.saveAsTable("t2")
RuleExecutor.resetMetrics()
spark.table("t1").join(spark.table("t2"), (1 until 800).map(i => s"id${i}")).show(false)
logWarning(RuleExecutor.dumpTimeSpent())
{code}
{noformat}
=== Metrics of Analyzer/Optimizer Rules ===
Total number of runs: 20157
Total time: 12.918977054 seconds
Rule Effective Time / Total Time Effective Runs / Total Runs
org.apache.spark.sql.catalyst.optimizer.BooleanSimplification 0 / 9835799647 0 / 3
org.apache.spark.sql.catalyst.optimizer.InferFiltersFromConstraints 1532613008 / 1532613008 1 / 1
...
{noformat}
If we disable {{BooleanSimplification}}:
{noformat}
=== Metrics of Analyzer/Optimizer Rules ===
Total number of runs: 20154
Total time: 3.715814437 seconds
Rule Effective Time / Total Time Effective Runs / Total Runs
org.apache.spark.sql.catalyst.optimizer.InferFiltersFromConstraints 2081338100 / 2081338100 1 / 1
...
{noformat}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org