Ryan Blue created PARQUET-235:
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             Summary: Fix compatibility of parquet.metadata with 1.5.0
                 Key: PARQUET-235
                 URL: https://issues.apache.org/jira/browse/PARQUET-235
             Project: Parquet
          Issue Type: Bug
          Components: parquet-mr
    Affects Versions: 1.6.0
            Reporter: Ryan Blue
            Priority: Blocker
             Fix For: 1.6.0


There are quite a few incompatible changes to {{parquet.metadata}} (see below). 
It seems like it is part of the API because the metadata is exposed. Fixing it 
will be annoying because {{ColumnPath}} was removed entirely.

If this is public, then we need to fix compatibility.

{code:title=parquet.metadata changes}
Class parquet.hadoop.metadata.Canonicalizer
 Removed Class , access public super synchronized
Class parquet.hadoop.metadata.ColumnChunkMetaData
 Added Method getPath, desc ()Lparquet/common/schema/ColumnPath;, access public
 Removed Method get, sig 
(Lparquet/hadoop/metadata/ColumnPath;Lparquet/schema/PrimitiveType$PrimitiveTypeName;Lparquet/hadoop/metadata/CompressionCodecName;Ljava/util/Set<Lparquet/column/Encoding;>;Lparquet/column/statistics/Statistics;JJJJJ)Lparquet/hadoop/metadata/ColumnChunkMetaData;,
 desc 
(Lparquet/hadoop/metadata/ColumnPath;Lparquet/schema/PrimitiveType$PrimitiveTypeName;Lparquet/hadoop/metadata/CompressionCodecName;Ljava/util/Set;Lparquet/column/statistics/Statistics;JJJJJ)Lparquet/hadoop/metadata/ColumnChunkMetaData;,
 access public static
 Added Method get, sig 
(Lparquet/common/schema/ColumnPath;Lparquet/schema/PrimitiveType$PrimitiveTypeName;Lparquet/hadoop/metadata/CompressionCodecName;Ljava/util/Set<Lparquet/column/Encoding;>;JJJJJ)Lparquet/hadoop/metadata/ColumnChunkMetaData;,
 desc 
(Lparquet/common/schema/ColumnPath;Lparquet/schema/PrimitiveType$PrimitiveTypeName;Lparquet/hadoop/metadata/CompressionCodecName;Ljava/util/Set;JJJJJ)Lparquet/hadoop/metadata/ColumnChunkMetaData;,
 access public static
 Added Method get, sig 
(Lparquet/common/schema/ColumnPath;Lparquet/schema/PrimitiveType$PrimitiveTypeName;Lparquet/hadoop/metadata/CompressionCodecName;Ljava/util/Set<Lparquet/column/Encoding;>;Lparquet/column/statistics/Statistics;JJJJJ)Lparquet/hadoop/metadata/ColumnChunkMetaData;,
 desc 
(Lparquet/common/schema/ColumnPath;Lparquet/schema/PrimitiveType$PrimitiveTypeName;Lparquet/hadoop/metadata/CompressionCodecName;Ljava/util/Set;Lparquet/column/statistics/Statistics;JJJJJ)Lparquet/hadoop/metadata/ColumnChunkMetaData;,
 access public static
 Removed Method getPath, desc ()Lparquet/hadoop/metadata/ColumnPath;, access 
public
 Removed Method get, sig 
(Lparquet/hadoop/metadata/ColumnPath;Lparquet/schema/PrimitiveType$PrimitiveTypeName;Lparquet/hadoop/metadata/CompressionCodecName;Ljava/util/Set<Lparquet/column/Encoding;>;JJJJJ)Lparquet/hadoop/metadata/ColumnChunkMetaData;,
 desc 
(Lparquet/hadoop/metadata/ColumnPath;Lparquet/schema/PrimitiveType$PrimitiveTypeName;Lparquet/hadoop/metadata/CompressionCodecName;Ljava/util/Set;JJJJJ)Lparquet/hadoop/metadata/ColumnChunkMetaData;,
 access public static
Class parquet.hadoop.metadata.ColumnChunkProperties
 Added Method getPath, desc ()Lparquet/common/schema/ColumnPath;, access public
 Removed Method getPath, desc ()Lparquet/hadoop/metadata/ColumnPath;, access 
public
 Removed Method get, sig 
(Lparquet/hadoop/metadata/ColumnPath;Lparquet/schema/PrimitiveType$PrimitiveTypeName;Lparquet/hadoop/metadata/CompressionCodecName;Ljava/util/Set<Lparquet/column/Encoding;>;)Lparquet/hadoop/metadata/ColumnChunkProperties;,
 desc 
(Lparquet/hadoop/metadata/ColumnPath;Lparquet/schema/PrimitiveType$PrimitiveTypeName;Lparquet/hadoop/metadata/CompressionCodecName;Ljava/util/Set;)Lparquet/hadoop/metadata/ColumnChunkProperties;,
 access public static
 Added Method get, sig 
(Lparquet/common/schema/ColumnPath;Lparquet/schema/PrimitiveType$PrimitiveTypeName;Lparquet/hadoop/metadata/CompressionCodecName;Ljava/util/Set<Lparquet/column/Encoding;>;)Lparquet/hadoop/metadata/ColumnChunkProperties;,
 desc 
(Lparquet/common/schema/ColumnPath;Lparquet/schema/PrimitiveType$PrimitiveTypeName;Lparquet/hadoop/metadata/CompressionCodecName;Ljava/util/Set;)Lparquet/hadoop/metadata/ColumnChunkProperties;,
 access public static
Class parquet.hadoop.metadata.ColumnPath
 Removed Class , access final public super synchronized
{code}



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