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From vdiravka <...@git.apache.org>
Subject [GitHub] drill pull request #824: DRILL-3867: Store relative paths in metadata file
Date Wed, 21 Jun 2017 19:36:39 GMT
Github user vdiravka commented on a diff in the pull request:

    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/Metadata.java
    @@ -179,10 +182,18 @@ private Metadata(FileSystem fs, ParquetFormatConfig formatConfig)
         for (final FileStatus file : fs.listStatus(p, new DrillPathFilter())) {
           if (file.isDirectory()) {
    +        String subdirectoryName = file.getPath().getName();
             ParquetTableMetadata_v3 subTableMetadata = (createMetaFilesRecursively(file.getPath().toString())).getLeft();
    -        metaDataList.addAll(subTableMetadata.files);
    -        directoryList.addAll(subTableMetadata.directories);
    -        directoryList.add(file.getPath().toString());
    +        for (ParquetFileMetadata_v3 pfm_v3 : subTableMetadata.files) {
    +          // Construction of the relative file path by adding subdirectory name and inner
relative file path
    +          String relativePath = Joiner.on("/").join(subdirectoryName, pfm_v3.getPath());
    --- End diff --
    Regarding the `paths` I answered in the general comment. 
    I refused from merging path names recursively. Instead of that I've implemented a new
`MetadataPathUtils.createMetadataWithRelativePaths()` method that converts absolute paths
to relative ones and creates a new metadata for the cache files. 

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