jihoonson closed pull request #6261: [Backport] RowBasedKeySerde should use
empty dictionary in constructor
URL: https://github.com/apache/incubator-druid/pull/6261
This is a PR merged from a forked repository.
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diff --git
a/processing/src/main/java/io/druid/query/groupby/epinephelinae/RowBasedGrouperHelper.java
b/processing/src/main/java/io/druid/query/groupby/epinephelinae/RowBasedGrouperHelper.java
index fa4f2a95aea..aec0676e2a0 100644
---
a/processing/src/main/java/io/druid/query/groupby/epinephelinae/RowBasedGrouperHelper.java
+++
b/processing/src/main/java/io/druid/query/groupby/epinephelinae/RowBasedGrouperHelper.java
@@ -916,7 +916,6 @@ static long estimateStringKeySize(String key)
private static class RowBasedKeySerde implements
Grouper.KeySerde<RowBasedGrouperHelper.RowBasedKey>
{
- private static final int DICTIONARY_INITIAL_CAPACITY = 10000;
private static final int UNKNOWN_DICTIONARY_ID = -1;
private final boolean includeTimestamp;
@@ -962,9 +961,9 @@ static long estimateStringKeySize(String key)
this.valueTypes = valueTypes;
this.limitSpec = limitSpec;
this.enableRuntimeDictionaryGeneration = dictionary == null;
- this.dictionary = enableRuntimeDictionaryGeneration ? new
ArrayList<>(DICTIONARY_INITIAL_CAPACITY) : dictionary;
+ this.dictionary = enableRuntimeDictionaryGeneration ? new ArrayList<>()
: dictionary;
this.reverseDictionary = enableRuntimeDictionaryGeneration ?
- new
Object2IntOpenHashMap<>(DICTIONARY_INITIAL_CAPACITY) :
+ new Object2IntOpenHashMap<>() :
new Object2IntOpenHashMap<>(dictionary.size());
this.reverseDictionary.defaultReturnValue(UNKNOWN_DICTIONARY_ID);
this.maxDictionarySize = maxDictionarySize;
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