sunchao commented on a change in pull request #29542:
URL: https://github.com/apache/spark/pull/29542#discussion_r479594051
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File path:
sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/SpecificParquetRecordReaderBase.java
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@@ -92,60 +88,24 @@
public void initialize(InputSplit inputSplit, TaskAttemptContext
taskAttemptContext)
throws IOException, InterruptedException {
Configuration configuration = taskAttemptContext.getConfiguration();
- ParquetInputSplit split = (ParquetInputSplit)inputSplit;
+ FileSplit split = (FileSplit) inputSplit;
this.file = split.getPath();
- long[] rowGroupOffsets = split.getRowGroupOffsets();
- ParquetMetadata footer;
- List<BlockMetaData> blocks;
-
- // if task.side.metadata is set, rowGroupOffsets is null
- if (rowGroupOffsets == null) {
- // then we need to apply the predicate push down filter
- footer = readFooter(configuration, file, range(split.getStart(),
split.getEnd()));
- MessageType fileSchema = footer.getFileMetaData().getSchema();
- FilterCompat.Filter filter = getFilter(configuration);
- blocks = filterRowGroups(filter, footer.getBlocks(), fileSchema);
- } else {
- // otherwise we find the row groups that were selected on the client
- footer = readFooter(configuration, file, NO_FILTER);
Review comment:
I think this path is never triggered. You can see below that we always
construct `ParquetInputSplit` by initializing the `rowGroupOffsets` with null.
The `rowGroupOffsets` is also deprecated along with the `ParquetInputSplit`
class.
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