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From parthchandra <...@git.apache.org>
Subject [GitHub] drill pull request #595: DRILL-4203: Parquet File. Date is stored wrongly
Date Thu, 29 Sep 2016 22:13:14 GMT
Github user parthchandra commented on a diff in the pull request:

    https://github.com/apache/drill/pull/595#discussion_r81240013
  
    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/ParquetReaderUtility.java
---
    @@ -18,16 +18,62 @@
     package org.apache.drill.exec.store.parquet;
     
     import org.apache.drill.common.exceptions.UserException;
    +import org.apache.drill.common.expression.PathSegment;
    +import org.apache.drill.common.expression.SchemaPath;
     import org.apache.drill.exec.planner.physical.PlannerSettings;
     import org.apache.drill.exec.server.options.OptionManager;
    +import org.apache.drill.exec.store.AbstractRecordReader;
    +import org.apache.drill.exec.store.ParquetOutputRecordWriter;
     import org.apache.drill.exec.work.ExecErrorConstants;
    +import org.apache.parquet.SemanticVersion;
    +import org.apache.parquet.VersionParser;
    +import org.apache.parquet.column.ColumnDescriptor;
    +import org.apache.parquet.column.statistics.Statistics;
    +import org.apache.parquet.format.ConvertedType;
    +import org.apache.parquet.format.FileMetaData;
    +import org.apache.parquet.format.SchemaElement;
    +import org.apache.parquet.format.converter.ParquetMetadataConverter;
    +import org.apache.parquet.hadoop.ParquetFileWriter;
    +import org.apache.parquet.hadoop.metadata.ColumnChunkMetaData;
    +import org.apache.parquet.hadoop.metadata.ColumnPath;
    +import org.apache.parquet.hadoop.metadata.ParquetMetadata;
    +import org.apache.parquet.schema.OriginalType;
    +import org.joda.time.Chronology;
    +import org.joda.time.DateTimeConstants;
    +
    +import java.util.Arrays;
    +import java.util.HashMap;
    +import java.util.List;
    +import java.util.Map;
     
     /*
      * Utility class where we can capture common logic between the two parquet readers
      */
     public class ParquetReaderUtility {
       private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(ParquetReaderUtility.class);
     
    +  // Note the negation symbol in the beginning
    +  public static final double CORRECT_CORRUPT_DATE_SHIFT = -ParquetOutputRecordWriter.JULIAN_DAY_EPOC
- 0.5;
    --- End diff --
    
    Is the the number by which you must correct the incorrect values? If so, please add a
comment. This had me very confused for a while.



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