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https://issues.apache.org/jira/browse/HIVE-10175?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gopal V updated HIVE-10175:
---------------------------
Description:
TezCompiler::runDynamicPartitionPruning() & ppr.PartitionPruner() calls the
graph walker even if all tables provided to the optimizer are unpartitioned (or
temporary) tables.
This makes it extremely slow as it will walk & inspect a large/complex
FilterOperator later in the pipeline.
was:
TezCompiler::runDynamicPartitionPruning() calls the graph walker even if all
tables provided to the optimizer are unpartitioned temporary tables.
This makes it extremely slow as it will walk & inspect a large/complex
FilterOperator later in the pipeline.
> PartitionPruning lacks a fast-path exit for large IN() queries
> --------------------------------------------------------------
>
> Key: HIVE-10175
> URL: https://issues.apache.org/jira/browse/HIVE-10175
> Project: Hive
> Issue Type: Bug
> Components: Physical Optimizer, Tez
> Affects Versions: 1.2.0
> Reporter: Gopal V
> Priority: Minor
>
> TezCompiler::runDynamicPartitionPruning() & ppr.PartitionPruner() calls the
> graph walker even if all tables provided to the optimizer are unpartitioned
> (or temporary) tables.
> This makes it extremely slow as it will walk & inspect a large/complex
> FilterOperator later in the pipeline.
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