Github user arina-ielchiieva commented on a diff in the pull request: https://github.com/apache/drill/pull/877#discussion_r132407801 --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/ParquetFormatPlugin.java --- @@ -222,15 +222,17 @@ public DrillTable isReadable(DrillFileSystem fs, FileSelection selection, // create a metadata context that will be used for the duration of the query for this table MetadataContext metaContext = new MetadataContext(); - ParquetTableMetadataDirs mDirs = Metadata.readMetadataDirs(fs, dirMetaPath.toString(), metaContext, formatConfig); - if (mDirs.getDirectories().size() > 0) { - FileSelection dirSelection = FileSelection.createFromDirectories(mDirs.getDirectories(), selection, - selection.getSelectionRoot() /* cacheFileRoot initially points to selectionRoot */); - dirSelection.setExpandedPartial(); - dirSelection.setMetaContext(metaContext); - - return new DynamicDrillTable(fsPlugin, storageEngineName, userName, - new FormatSelection(plugin.getConfig(), dirSelection)); + ParquetTableMetadataDirs mDirs = Metadata.readMetadataDirs(fs, dirMetaPath, metaContext, formatConfig); + if (mDirs != null) { + if (mDirs.getDirectories().size() > 0) { --- End diff -- Can we combine two `if` statements into one?
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