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[GitHub] [carbondata] ajantha-bhat commented on a change in pull request #3987: [CARBONDATA-4039] Support Local dictionary for Presto complex datatypes

Posted by GitBox on Oct 21, 2020; 5:46am
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/GitHub-carbondata-akkio-97-opened-a-new-pull-request-3987-WIP-local-dictionary-tp102125p102376.html


ajantha-bhat commented on a change in pull request #3987:
URL: https://github.com/apache/carbondata/pull/3987#discussion_r509004084



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File path: core/src/main/java/org/apache/carbondata/core/datastore/page/encoding/compress/DirectCompressCodec.java
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@@ -325,6 +327,21 @@ private void fillPrimitiveType(byte[] pageData, CarbonColumnVector vector,
       int intSizeInBytes = DataTypes.INT.getSizeInBytes();
       int shortSizeInBytes = DataTypes.SHORT.getSizeInBytes();
       int lengthStoredInBytes;
+      // check if local dictionary is enabled for complex primitve type and call
+      // fillVector eventually
+      if (!vectorInfo.vectorStack.isEmpty()) {
+        CarbonColumnVectorImpl tempVector =
+            (CarbonColumnVectorImpl) (vectorInfo.vectorStack.peek().getColumnVector());
+        if (tempVector.rawColumnChunk != null
+            && tempVector.rawColumnChunk.getLocalDictionary() != null) {
+          DimensionChunkStoreFactory.DimensionStoreType dimStoreType =
+              DimensionChunkStoreFactory.DimensionStoreType.LOCAL_DICT;
+          new VariableLengthDimensionColumnPage(pageData, new int[0], new int[0], pageSize,

Review comment:
       please move fill vector comment here, because VariableLengthDimensionColumnPage constructor is calling fill vector




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