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Posted to issues@carbondata.apache.org by QiangCai <gi...@git.apache.org> on 2017/05/16 02:27:33 UTC
[GitHub] carbondata pull request #916: [CARBONDATA-938] Prune partitions for filter q...
GitHub user QiangCai opened a pull request:
https://github.com/apache/carbondata/pull/916
[CARBONDATA-938] Prune partitions for filter query on partition column
1. generate partition filter by basing on pushed-down filter
2. apply partition filter to get the map of required partition (use BitSet)
support EqualTo, In, GreaterThan/EqualTo(>, >=), LessThan/EqualTo(<, <=)
3. in CarbonInputFormat, use partition map to skip some non-required splits
4. add query test case
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/QiangCai/incubator-carbondata newprunepartition
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/carbondata/pull/916.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #916
----
commit 32a5ae41a0d4ef0372bbcb662ad78ae2c89fe637
Author: QiangCai <qi...@qq.com>
Date: 2017-05-04T03:26:05Z
prunepartition
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[GitHub] carbondata pull request #916: [CARBONDATA-938] Prune partitions for filter q...
Posted by QiangCai <gi...@git.apache.org>.
Github user QiangCai commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/916#discussion_r117394297
--- Diff: core/src/main/java/org/apache/carbondata/core/scan/filter/FilterExpressionProcessor.java ---
@@ -137,6 +155,119 @@ public FilterResolverIntf getFilterResolver(Expression expressionTree,
}
/**
+ * Get the map of required partitions
+ * The value of "1" in BitSet represent the required partition
+ * @param expressionTree
+ * @param partitionInfo
+ * @param partitioner
+ * @return
+ */
+ @Override public BitSet getFilteredPartitions(Expression expressionTree,
+ PartitionInfo partitionInfo, Partitioner partitioner) {
+ return createPartitionFilterTree(expressionTree, partitionInfo).applyFilter(partitioner);
+ }
+
+ /**
+ * create partition filter by basing on pushed-down filter
+ * @param expressionTree
+ * @param partitionInfo
+ * @return
+ */
+ public PartitionFilterIntf createPartitionFilterTree(Expression expressionTree,
--- End diff --
ok
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[GitHub] carbondata pull request #916: [CARBONDATA-938] Prune partitions for filter q...
Posted by jackylk <gi...@git.apache.org>.
Github user jackylk commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/916#discussion_r117146059
--- Diff: core/src/main/java/org/apache/carbondata/core/scan/filter/FilterExpressionProcessor.java ---
@@ -137,6 +155,119 @@ public FilterResolverIntf getFilterResolver(Expression expressionTree,
}
/**
+ * Get the map of required partitions
+ * The value of "1" in BitSet represent the required partition
+ * @param expressionTree
+ * @param partitionInfo
+ * @param partitioner
+ * @return
+ */
+ @Override public BitSet getFilteredPartitions(Expression expressionTree,
+ PartitionInfo partitionInfo, Partitioner partitioner) {
+ return createPartitionFilterTree(expressionTree, partitionInfo).applyFilter(partitioner);
+ }
+
+ /**
+ * create partition filter by basing on pushed-down filter
+ * @param expressionTree
+ * @param partitionInfo
+ * @return
+ */
+ public PartitionFilterIntf createPartitionFilterTree(Expression expressionTree,
--- End diff --
make it private
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[GitHub] carbondata pull request #916: [CARBONDATA-938] Prune partitions for filter q...
Posted by QiangCai <gi...@git.apache.org>.
Github user QiangCai commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/916#discussion_r117394103
--- Diff: hadoop/src/main/java/org/apache/carbondata/hadoop/CarbonInputFormat.java ---
@@ -255,11 +258,32 @@ private static AbsoluteTableIdentifier getAbsoluteTableIdentifier(Configuration
if (null == carbonTable) {
throw new IOException("Missing/Corrupt schema file for table.");
}
+
CarbonInputFormatUtil.processFilterExpression(filter, carbonTable);
+
+ // prune partitions for filter query on partition table
+ BitSet partitionMap = null;
+ if (null != filter) {
+ PartitionInfo partitionInfo = carbonTable.getPartitionInfo(carbonTable.getFactTableName());
+ if (null != partitionInfo) {
+ Partitioner partitioner = PartitionUtil.getPartitioner(partitionInfo);
+ partitionMap = new FilterExpressionProcessor()
+ .getFilteredPartitions(filter, partitionInfo, partitioner);
+ if (partitionMap.cardinality() == 0) {
+ // no partition is required
+ return new ArrayList<InputSplit>();
+ }
+ if (partitionMap.cardinality() == partitioner.numPartitions()) {
--- End diff --
If all partitions are matched or not matched, we can release BitSet object.
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[GitHub] carbondata issue #916: [CARBONDATA-938] Prune partitions for filter query on...
Posted by CarbonDataQA <gi...@git.apache.org>.
Github user CarbonDataQA commented on the issue:
https://github.com/apache/carbondata/pull/916
Build Success with Spark 1.6.2, Please check CI http://136.243.101.176:8080/job/ApacheCarbonPRBuilder/2091/
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[GitHub] carbondata pull request #916: [CARBONDATA-938] Prune partitions for filter q...
Posted by jackylk <gi...@git.apache.org>.
Github user jackylk commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/916#discussion_r117388756
--- Diff: hadoop/src/main/java/org/apache/carbondata/hadoop/CarbonInputFormat.java ---
@@ -255,11 +258,32 @@ private static AbsoluteTableIdentifier getAbsoluteTableIdentifier(Configuration
if (null == carbonTable) {
throw new IOException("Missing/Corrupt schema file for table.");
}
+
CarbonInputFormatUtil.processFilterExpression(filter, carbonTable);
+
+ // prune partitions for filter query on partition table
+ BitSet partitionMap = null;
+ if (null != filter) {
+ PartitionInfo partitionInfo = carbonTable.getPartitionInfo(carbonTable.getFactTableName());
+ if (null != partitionInfo) {
+ Partitioner partitioner = PartitionUtil.getPartitioner(partitionInfo);
+ partitionMap = new FilterExpressionProcessor()
+ .getFilteredPartitions(filter, partitionInfo, partitioner);
+ if (partitionMap.cardinality() == 0) {
+ // no partition is required
+ return new ArrayList<InputSplit>();
+ }
+ if (partitionMap.cardinality() == partitioner.numPartitions()) {
--- End diff --
I feel it is more readable to use BitSet with all `1` than `null`
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[GitHub] carbondata pull request #916: [CARBONDATA-938] Prune partitions for filter q...
Posted by jackylk <gi...@git.apache.org>.
Github user jackylk commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/916#discussion_r117386887
--- Diff: core/src/main/java/org/apache/carbondata/core/scan/filter/partition/DefaultPartitionFilterImpl.java ---
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.carbondata.core.scan.filter.partition;
+
+import java.util.BitSet;
+
+import org.apache.carbondata.core.scan.partition.PartitionUtil;
+import org.apache.carbondata.core.scan.partition.Partitioner;
+
+/**
+ * the default implement of partition filter
+ */
+public class DefaultPartitionFilterImpl implements PartitionFilterIntf {
+
+ /**
+ * true: all partitions are required
+ * false: no partition is required
+ */
+ private boolean isContainAll;
+
+ public DefaultPartitionFilterImpl(boolean isContainAll) {
--- End diff --
There is only one instance creation whose `isContainAll` is `false`
Can you make another implementation for it? I think the name `isContainAll` is not intuitive.
```
case FALSE:
return new DefaultPartitionFilterImpl(false);
```
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[GitHub] carbondata issue #916: [CARBONDATA-938] Prune partitions for filter query on...
Posted by QiangCai <gi...@git.apache.org>.
Github user QiangCai commented on the issue:
https://github.com/apache/carbondata/pull/916
@jackylk @ravipesala @lionelcao please review pr
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[GitHub] carbondata issue #916: [CARBONDATA-938] Prune partitions for filter query on...
Posted by CarbonDataQA <gi...@git.apache.org>.
Github user CarbonDataQA commented on the issue:
https://github.com/apache/carbondata/pull/916
Build Success with Spark 1.6.2, Please check CI http://136.243.101.176:8080/job/ApacheCarbonPRBuilder/2048/
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[GitHub] carbondata pull request #916: [CARBONDATA-938] Prune partitions for filter q...
Posted by QiangCai <gi...@git.apache.org>.
Github user QiangCai commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/916#discussion_r117394238
--- Diff: hadoop/src/main/java/org/apache/carbondata/hadoop/CarbonInputFormat.java ---
@@ -255,11 +258,32 @@ private static AbsoluteTableIdentifier getAbsoluteTableIdentifier(Configuration
if (null == carbonTable) {
throw new IOException("Missing/Corrupt schema file for table.");
}
+
CarbonInputFormatUtil.processFilterExpression(filter, carbonTable);
+
+ // prune partitions for filter query on partition table
+ BitSet partitionMap = null;
--- End diff --
ok
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[GitHub] carbondata issue #916: [CARBONDATA-938] Prune partitions for filter query on...
Posted by CarbonDataQA <gi...@git.apache.org>.
Github user CarbonDataQA commented on the issue:
https://github.com/apache/carbondata/pull/916
Build Success with Spark 1.6.2, Please check CI http://136.243.101.176:8080/job/ApacheCarbonPRBuilder/2095/
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[GitHub] carbondata pull request #916: [CARBONDATA-938] Prune partitions for filter q...
Posted by asfgit <gi...@git.apache.org>.
Github user asfgit closed the pull request at:
https://github.com/apache/carbondata/pull/916
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[GitHub] carbondata issue #916: [CARBONDATA-938] Prune partitions for filter query on...
Posted by jackylk <gi...@git.apache.org>.
Github user jackylk commented on the issue:
https://github.com/apache/carbondata/pull/916
LGTM
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[GitHub] carbondata pull request #916: [CARBONDATA-938] Prune partitions for filter q...
Posted by jackylk <gi...@git.apache.org>.
Github user jackylk commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/916#discussion_r117387947
--- Diff: hadoop/src/main/java/org/apache/carbondata/hadoop/CarbonInputFormat.java ---
@@ -255,11 +258,32 @@ private static AbsoluteTableIdentifier getAbsoluteTableIdentifier(Configuration
if (null == carbonTable) {
throw new IOException("Missing/Corrupt schema file for table.");
}
+
CarbonInputFormatUtil.processFilterExpression(filter, carbonTable);
+
+ // prune partitions for filter query on partition table
+ BitSet partitionMap = null;
--- End diff --
suggest to rename all `partitionMap` to `matchedPartitions` in all functions
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[GitHub] carbondata issue #916: [CARBONDATA-938] Prune partitions for filter query on...
Posted by CarbonDataQA <gi...@git.apache.org>.
Github user CarbonDataQA commented on the issue:
https://github.com/apache/carbondata/pull/916
Build Success with Spark 1.6.2, Please check CI http://136.243.101.176:8080/job/ApacheCarbonPRBuilder/2044/
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[GitHub] carbondata issue #916: [CARBONDATA-938] Prune partitions for filter query on...
Posted by CarbonDataQA <gi...@git.apache.org>.
Github user CarbonDataQA commented on the issue:
https://github.com/apache/carbondata/pull/916
Build Failed with Spark 1.6.2, Please check CI http://136.243.101.176:8080/job/ApacheCarbonPRBuilder/2094/
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[GitHub] carbondata pull request #916: [CARBONDATA-938] Prune partitions for filter q...
Posted by QiangCai <gi...@git.apache.org>.
Github user QiangCai commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/916#discussion_r117395210
--- Diff: core/src/main/java/org/apache/carbondata/core/scan/filter/partition/DefaultPartitionFilterImpl.java ---
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.carbondata.core.scan.filter.partition;
+
+import java.util.BitSet;
+
+import org.apache.carbondata.core.scan.partition.PartitionUtil;
+import org.apache.carbondata.core.scan.partition.Partitioner;
+
+/**
+ * the default implement of partition filter
+ */
+public class DefaultPartitionFilterImpl implements PartitionFilterIntf {
+
+ /**
+ * true: all partitions are required
+ * false: no partition is required
+ */
+ private boolean isContainAll;
+
+ public DefaultPartitionFilterImpl(boolean isContainAll) {
--- End diff --
We need to create BitSet for each filter. We will invoke logical operate on these BitSets. It means filters can't share the same BitSet.
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