-
Notifications
You must be signed in to change notification settings - Fork 1.5k
PARQUET-2261: Implement SizeStatistics #1177
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
Merged
+1,518
−178
Merged
Changes from 4 commits
Commits
Show all changes
5 commits
Select commit
Hold shift + click to select a range
File filter
Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
There are no files selected for viewing
139 changes: 139 additions & 0 deletions
139
parquet-column/src/main/java/org/apache/parquet/column/impl/ColumnValueCollector.java
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| /* | ||
| * 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.parquet.column.impl; | ||
|
|
||
| import java.util.OptionalDouble; | ||
| import java.util.OptionalLong; | ||
| import org.apache.parquet.column.ColumnDescriptor; | ||
| import org.apache.parquet.column.ParquetProperties; | ||
| import org.apache.parquet.column.statistics.SizeStatistics; | ||
| import org.apache.parquet.column.statistics.Statistics; | ||
| import org.apache.parquet.column.values.bloomfilter.AdaptiveBlockSplitBloomFilter; | ||
| import org.apache.parquet.column.values.bloomfilter.BlockSplitBloomFilter; | ||
| import org.apache.parquet.column.values.bloomfilter.BloomFilter; | ||
| import org.apache.parquet.column.values.bloomfilter.BloomFilterWriter; | ||
| import org.apache.parquet.io.api.Binary; | ||
|
|
||
| // An internal class to collect column values to build column statistics and bloom filter. | ||
| class ColumnValueCollector { | ||
|
|
||
| private final ColumnDescriptor path; | ||
| private final BloomFilterWriter bloomFilterWriter; | ||
| private final BloomFilter bloomFilter; | ||
| private Statistics<?> statistics; | ||
| private SizeStatistics.Builder sizeStatisticsBuilder; | ||
|
|
||
| ColumnValueCollector(ColumnDescriptor path, BloomFilterWriter bloomFilterWriter, ParquetProperties props) { | ||
| this.path = path; | ||
| resetPageStatistics(); | ||
|
|
||
| this.bloomFilterWriter = bloomFilterWriter; | ||
| if (bloomFilterWriter == null) { | ||
| this.bloomFilter = null; | ||
| return; | ||
| } | ||
| int maxBloomFilterSize = props.getMaxBloomFilterBytes(); | ||
|
|
||
| OptionalLong ndv = props.getBloomFilterNDV(path); | ||
| OptionalDouble fpp = props.getBloomFilterFPP(path); | ||
| // If user specify the column NDV, we construct Bloom filter from it. | ||
| if (ndv.isPresent()) { | ||
| int optimalNumOfBits = BlockSplitBloomFilter.optimalNumOfBits(ndv.getAsLong(), fpp.getAsDouble()); | ||
| this.bloomFilter = new BlockSplitBloomFilter(optimalNumOfBits / 8, maxBloomFilterSize); | ||
| } else { | ||
| if (props.getAdaptiveBloomFilterEnabled(path)) { | ||
| int numCandidates = props.getBloomFilterCandidatesCount(path); | ||
| this.bloomFilter = | ||
| new AdaptiveBlockSplitBloomFilter(maxBloomFilterSize, numCandidates, fpp.getAsDouble(), path); | ||
| } else { | ||
| this.bloomFilter = new BlockSplitBloomFilter(maxBloomFilterSize, maxBloomFilterSize); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| void resetPageStatistics() { | ||
| this.statistics = Statistics.createStats(path.getPrimitiveType()); | ||
| this.sizeStatisticsBuilder = SizeStatistics.newBuilder( | ||
| path.getPrimitiveType(), path.getMaxRepetitionLevel(), path.getMaxDefinitionLevel()); | ||
| } | ||
|
|
||
| void writeNull(int repetitionLevel, int definitionLevel) { | ||
| statistics.incrementNumNulls(); | ||
| sizeStatisticsBuilder.add(repetitionLevel, definitionLevel); | ||
| } | ||
|
|
||
| void write(boolean value, int repetitionLevel, int definitionLevel) { | ||
| statistics.updateStats(value); | ||
| sizeStatisticsBuilder.add(repetitionLevel, definitionLevel); | ||
| } | ||
|
|
||
| void write(int value, int repetitionLevel, int definitionLevel) { | ||
| statistics.updateStats(value); | ||
| sizeStatisticsBuilder.add(repetitionLevel, definitionLevel); | ||
| if (bloomFilter != null) { | ||
| bloomFilter.insertHash(bloomFilter.hash(value)); | ||
| } | ||
| } | ||
|
|
||
| void write(long value, int repetitionLevel, int definitionLevel) { | ||
| statistics.updateStats(value); | ||
| sizeStatisticsBuilder.add(repetitionLevel, definitionLevel); | ||
| if (bloomFilter != null) { | ||
| bloomFilter.insertHash(bloomFilter.hash(value)); | ||
| } | ||
| } | ||
|
|
||
| void write(float value, int repetitionLevel, int definitionLevel) { | ||
| statistics.updateStats(value); | ||
| sizeStatisticsBuilder.add(repetitionLevel, definitionLevel); | ||
| if (bloomFilter != null) { | ||
| bloomFilter.insertHash(bloomFilter.hash(value)); | ||
| } | ||
| } | ||
|
|
||
| void write(double value, int repetitionLevel, int definitionLevel) { | ||
| statistics.updateStats(value); | ||
| sizeStatisticsBuilder.add(repetitionLevel, definitionLevel); | ||
| if (bloomFilter != null) { | ||
| bloomFilter.insertHash(bloomFilter.hash(value)); | ||
| } | ||
| } | ||
|
|
||
| void write(Binary value, int repetitionLevel, int definitionLevel) { | ||
| statistics.updateStats(value); | ||
| sizeStatisticsBuilder.add(repetitionLevel, definitionLevel, value); | ||
| if (bloomFilter != null) { | ||
| bloomFilter.insertHash(bloomFilter.hash(value)); | ||
| } | ||
| } | ||
|
|
||
| void finalizeColumnChunk() { | ||
| if (bloomFilterWriter != null && bloomFilter != null) { | ||
| bloomFilterWriter.writeBloomFilter(bloomFilter); | ||
| } | ||
| } | ||
|
|
||
| Statistics<?> getStatistics() { | ||
| return statistics; | ||
| } | ||
|
|
||
| SizeStatistics getSizeStatistics() { | ||
| return sizeStatisticsBuilder.build(); | ||
| } | ||
| } | ||
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
What do you think about using a no-op BloomFilter implementation instead of a null-check? I am not sure if would perform better, though.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Fixed. Could you please review it again?