vdiravka commented on a change in pull request #2232:
URL: https://github.com/apache/drill/pull/2232#discussion_r640131705
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/columnreaders/NullableFixedByteAlignedReaders.java
##########
@@ -318,6 +318,27 @@ protected void readField(long recordsToReadInThisPass) {
}
}
break;
+ case FIXED_LEN_BYTE_ARRAY:
+ case BINARY:
+ if (usingDictionary) {
+ NullableVarDecimalVector.Mutator mutator = valueVec.getMutator();
+ for (int i = 0; i < recordsReadInThisIteration; i++) {
+ Binary currDictValToWrite =
pageReader.dictionaryValueReader.readBytes();
+ mutator.setSafe(valuesReadInCurrentPass + i,
currDictValToWrite.toByteBuffer().slice(), 0,
+ currDictValToWrite.length());
+ }
+ // Set the write Index. The next page that gets read might be a
page that does not use dictionary encoding
+ // and we will go into the else condition below. The readField
method of the parent class requires the
+ // writer index to be set correctly.
+ int writerIndex = valueVec.getBuffer().writerIndex();
+ valueVec.getBuffer().setIndex(0, writerIndex + (int) readLength);
+ } else {
+ for (int i = 0; i < recordsToReadInThisPass; i++) {
+ Binary valueToWrite = pageReader.valueReader.readBytes();
+ valueVec.getMutator().setSafe(valuesReadInCurrentPass + i,
valueToWrite.toByteBuffer().slice(), 0,
Review comment:
Originally it was `valueVec.getMutator().setSafe(index, 1, start, start
+ dataTypeLengthInBytes, bytebuf);`. Why it is different now?
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/columnreaders/NullableFixedByteAlignedReaders.java
##########
@@ -318,6 +318,27 @@ protected void readField(long recordsToReadInThisPass) {
}
}
break;
+ case FIXED_LEN_BYTE_ARRAY:
+ case BINARY:
+ if (usingDictionary) {
Review comment:
Am I right, this is the main code to solve the ticket issue and all
other changes from this PR are just refactoring?
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/columnreaders/ColumnReaderFactory.java
##########
@@ -252,91 +222,110 @@
}
}
- public static NullableColumnReader<?>
getNullableColumnReader(ParquetRecordReader parentReader,
+ public static ColumnReader<?> getNullableColumnReader(ParquetRecordReader
parentReader,
Review comment:
The method is names as `getNullableColumnReader`, so why the returned
type is not `NullableColumnReader` anymore?
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