vvysotskyi commented on a change in pull request #1667: DRILL-7069: Moved
version checks outside loops in transformBinaryInMetadataCache
URL: https://github.com/apache/drill/pull/1667#discussion_r261518703
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/ParquetReaderUtility.java
##########
@@ -292,30 +294,47 @@ public static void
transformBinaryInMetadataCache(ParquetTableMetadataBase parqu
Set<List<String>> columnsNames =
getBinaryColumnsNames(parquetTableMetadata);
boolean allowBinaryMetadata =
allowBinaryMetadata(parquetTableMetadata.getDrillVersion(), readerConfig);
+ // Setting Min / Max values for ParquetTableMetadata_v1
+ if (new MetadataVersion(1, 0).equals(new
MetadataVersion(parquetTableMetadata.getMetadataVersion()))) {
+ for (ParquetFileMetadata file : parquetTableMetadata.getFiles()) {
+ for (RowGroupMetadata rowGroupMetadata : file.getRowGroups()) {
+ Long rowCount = rowGroupMetadata.getRowCount();
+ for (ColumnMetadata columnMetadata : rowGroupMetadata.getColumns()) {
+ if (columnMetadata.getPrimitiveType() ==
PrimitiveTypeName.BINARY || columnMetadata.getPrimitiveType() ==
PrimitiveTypeName.FIXED_LEN_BYTE_ARRAY) {
+ setMinMaxValues(columnMetadata, rowCount, allowBinaryMetadata,
false);
+ }
+ }
+ }
+ }
+ return;
+ }
+
+ // Variables needed for debugging only
+ Stopwatch timer = logger.isDebugEnabled() ? Stopwatch.createStarted() :
null;
+ int maxRowGroups = 0, minRowGroups = 99999, maxNumColumns = 0;
+
+ // Setting Min / Max values for V2 and V3 versions; for versions V3_3 and
above need to do decoding
+ boolean needDecoding = new
MetadataVersion(parquetTableMetadata.getMetadataVersion()).compareTo(new
MetadataVersion(3, 3)) >= 0;
for (ParquetFileMetadata file : parquetTableMetadata.getFiles()) {
+ maxRowGroups = Math.max(maxRowGroups,file.getRowGroups().size());
Review comment:
These two lines will be executed even for disabled debug. Could you please
wrap it with `if`?
And please add space after comma:
`Math.max(maxRowGroups,file.getRowGroups().size())` -> `Math.max(maxRowGroups,
file.getRowGroups().size())`.
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