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Posted to issues@carbondata.apache.org by GitBox <gi...@apache.org> on 2020/04/01 15:16:40 UTC
[GitHub] [carbondata] ajantha-bhat commented on a change in pull request
#3691: [CARBONDATA-3760]Enable prefetch in presto to improve query
performance
ajantha-bhat commented on a change in pull request #3691: [CARBONDATA-3760]Enable prefetch in presto to improve query performance
URL: https://github.com/apache/carbondata/pull/3691#discussion_r401695885
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File path: integration/presto/src/main/prestosql/org/apache/carbondata/presto/CarbondataPageSource.java
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@@ -356,7 +356,6 @@ private PrestoCarbonVectorizedRecordReader createReaderForColumnar(HiveSplit car
QueryModel queryModel = createQueryModel(carbonSplit, tableHandle, columns, conf);
if (isDirectVectorFill) {
queryModel.setDirectVectorFill(true);
- queryModel.setPreFetchData(false);
Review comment:
@QiangCai : During streaming support for presto [#3001]
you made prefetch as false.
Any particular reason or issue you found with that?
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