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Fri, 30 Oct 2015 02:01:27 +0000 (UTC) Date: Fri, 30 Oct 2015 02:01:27 +0000 (UTC) From: "ASF GitHub Bot (JIRA)" To: issues@drill.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (DRILL-3937) We are not pruning when we have a metadata cache and auto partitioned data in some cases MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/DRILL-3937?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14981715#comment-14981715 ] ASF GitHub Bot commented on DRILL-3937: --------------------------------------- Github user asfgit closed the pull request at: https://github.com/apache/drill/pull/220 > We are not pruning when we have a metadata cache and auto partitioned data in some cases > ---------------------------------------------------------------------------------------- > > Key: DRILL-3937 > URL: https://issues.apache.org/jira/browse/DRILL-3937 > Project: Apache Drill > Issue Type: Bug > Components: Metadata > Reporter: Rahul Challapalli > Assignee: Aman Sinha > Attachments: 1_0_9998.parquet, 1_0_9999.parquet > > > git.commit.id.abbrev=2736412 > The below plan indicates that we are not pruning > {code} > explain plan for select count(*) from dfs.`/drill/comscore/orders2` where o_clerk='Clerk#000079443'; > +------+------+ > | text | json | > +------+------+ > | 00-00 Screen > 00-01 Project(EXPR$0=[$0]) > 00-02 StreamAgg(group=[{}], EXPR$0=[COUNT()]) > 00-03 Project($f0=[0]) > 00-04 SelectionVectorRemover > 00-05 Filter(condition=[=($0, 'Clerk#000079443')]) > 00-06 Scan(groupscan=[ParquetGroupScan [entries=[ReadEntryWithPath [path=maprfs:///drill/comscore/orders2/1_0_9999.parquet], ReadEntryWithPath [path=maprfs:///drill/comscore/orders2/1_0_9998.parquet]], selectionRoot=/drill/comscore/orders2, numFiles=2, usedMetadataFile=true, columns=[`o_clerk`]]]) > {code} > Error from the logs > {code} > 2015-10-15 01:24:28,467 [29e0ffb4-1c91-f40a-8bf0-5e3665dcf107:foreman] WARN o.a.d.e.p.l.partition.PruneScanRule - Exception while trying to prune partition. > java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast to parquet.io.api.Binary > at org.apache.drill.exec.store.parquet.ParquetGroupScan.populatePruningVector(ParquetGroupScan.java:414) ~[drill-java-exec-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT] > at org.apache.drill.exec.planner.ParquetPartitionDescriptor.populatePartitionVectors(ParquetPartitionDescriptor.java:96) ~[drill-java-exec-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT] > at org.apache.drill.exec.planner.logical.partition.PruneScanRule.doOnMatch(PruneScanRule.java:212) ~[drill-java-exec-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT] > at org.apache.drill.exec.planner.logical.partition.ParquetPruneScanRule$2.onMatch(ParquetPruneScanRule.java:87) [drill-java-exec-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT] > at org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:228) [calcite-core-1.4.0-drill-r6.jar:1.4.0-drill-r6] > at org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:808) [calcite-core-1.4.0-drill-r6.jar:1.4.0-drill-r6] > at org.apache.calcite.tools.Programs$RuleSetProgram.run(Programs.java:303) [calcite-core-1.4.0-drill-r6.jar:1.4.0-drill-r6] > at org.apache.calcite.prepare.PlannerImpl.transform(PlannerImpl.java:303) [calcite-core-1.4.0-drill-r6.jar:1.4.0-drill-r6] > at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.logicalPlanningVolcanoAndLopt(DefaultSqlHandler.java:545) [drill-java-exec-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT] > at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.convertToDrel(DefaultSqlHandler.java:213) [drill-java-exec-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT] > at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.convertToDrel(DefaultSqlHandler.java:248) [drill-java-exec-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT] > at org.apache.drill.exec.planner.sql.handlers.ExplainHandler.getPlan(ExplainHandler.java:61) [drill-java-exec-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT] > at org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:178) [drill-java-exec-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT] > at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:905) [drill-java-exec-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT] > at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:244) [drill-java-exec-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT] > at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_71] > at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_71] > at java.lang.Thread.run(Thread.java:745) [na:1.7.0_71] > {code} > The partition column type in this case is binary which could be causing the issue. > Partition pruning seems to be working when we have Metadata Caching + Auto Partitioned Files with integer partition column -- This message was sent by Atlassian JIRA (v6.3.4#6332)