abhioncbr commented on code in PR #10891:
URL: https://github.com/apache/pinot/pull/10891#discussion_r1239788013
##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/segment/index/loader/columnminmaxvalue/ColumnMinMaxValueGenerator.java:
##########
@@ -119,65 +121,126 @@ private List<String> getColumnsToAddMinMaxValue() {
private boolean needAddColumnMinMaxValueForColumn(String columnName) {
ColumnMetadata columnMetadata =
_segmentMetadata.getColumnMetadataFor(columnName);
- return columnMetadata.hasDictionary() && columnMetadata.getMinValue() ==
null
+ return columnMetadata.getMinValue() == null
&& columnMetadata.getMaxValue() == null &&
!columnMetadata.isMinMaxValueInvalid();
}
private void addColumnMinMaxValueForColumn(String columnName)
throws Exception {
// Skip column without dictionary or with min/max value already set
ColumnMetadata columnMetadata =
_segmentMetadata.getColumnMetadataFor(columnName);
- if (!columnMetadata.hasDictionary() || columnMetadata.getMinValue() != null
- || columnMetadata.getMaxValue() != null) {
+ if (columnMetadata.getMinValue() != null || columnMetadata.getMaxValue()
!= null) {
return;
}
- PinotDataBuffer dictionaryBuffer = _segmentWriter.getIndexFor(columnName,
StandardIndexes.dictionary());
DataType dataType = columnMetadata.getDataType().getStoredType();
- int length = columnMetadata.getCardinality();
- switch (dataType) {
- case INT:
- try (IntDictionary intDictionary = new IntDictionary(dictionaryBuffer,
length)) {
-
SegmentColumnarIndexCreator.addColumnMinMaxValueInfo(_segmentProperties,
columnName,
- intDictionary.getStringValue(0),
intDictionary.getStringValue(length - 1));
- }
- break;
- case LONG:
- try (LongDictionary longDictionary = new
LongDictionary(dictionaryBuffer, length)) {
-
SegmentColumnarIndexCreator.addColumnMinMaxValueInfo(_segmentProperties,
columnName,
- longDictionary.getStringValue(0),
longDictionary.getStringValue(length - 1));
- }
- break;
- case FLOAT:
- try (FloatDictionary floatDictionary = new
FloatDictionary(dictionaryBuffer, length)) {
-
SegmentColumnarIndexCreator.addColumnMinMaxValueInfo(_segmentProperties,
columnName,
- floatDictionary.getStringValue(0),
floatDictionary.getStringValue(length - 1));
- }
- break;
- case DOUBLE:
- try (DoubleDictionary doubleDictionary = new
DoubleDictionary(dictionaryBuffer, length)) {
-
SegmentColumnarIndexCreator.addColumnMinMaxValueInfo(_segmentProperties,
columnName,
- doubleDictionary.getStringValue(0),
doubleDictionary.getStringValue(length - 1));
- }
- break;
- case STRING:
- try (StringDictionary stringDictionary = new
StringDictionary(dictionaryBuffer, length,
- columnMetadata.getColumnMaxLength())) {
-
SegmentColumnarIndexCreator.addColumnMinMaxValueInfo(_segmentProperties,
columnName,
- stringDictionary.getStringValue(0),
stringDictionary.getStringValue(length - 1));
- }
- break;
- case BYTES:
- try (BytesDictionary bytesDictionary = new
BytesDictionary(dictionaryBuffer, length,
- columnMetadata.getColumnMaxLength())) {
-
SegmentColumnarIndexCreator.addColumnMinMaxValueInfo(_segmentProperties,
columnName,
- bytesDictionary.getStringValue(0),
bytesDictionary.getStringValue(length - 1));
- }
- break;
- default:
- throw new IllegalStateException("Unsupported data type: " + dataType +
" for column: " + columnName);
+ if (columnMetadata.hasDictionary()) {
+ PinotDataBuffer dictionaryBuffer =
_segmentWriter.getIndexFor(columnName, StandardIndexes.dictionary());
+ int length = columnMetadata.getCardinality();
+ switch (dataType) {
+ case INT:
+ try (IntDictionary intDictionary = new
IntDictionary(dictionaryBuffer, length)) {
+
SegmentColumnarIndexCreator.addColumnMinMaxValueInfo(_segmentProperties,
columnName,
+ intDictionary.getStringValue(0),
intDictionary.getStringValue(length - 1));
+ }
+ break;
+ case LONG:
+ try (LongDictionary longDictionary = new
LongDictionary(dictionaryBuffer, length)) {
+
SegmentColumnarIndexCreator.addColumnMinMaxValueInfo(_segmentProperties,
columnName,
+ longDictionary.getStringValue(0),
longDictionary.getStringValue(length - 1));
+ }
+ break;
+ case FLOAT:
+ try (FloatDictionary floatDictionary = new
FloatDictionary(dictionaryBuffer, length)) {
+
SegmentColumnarIndexCreator.addColumnMinMaxValueInfo(_segmentProperties,
columnName,
+ floatDictionary.getStringValue(0),
floatDictionary.getStringValue(length - 1));
+ }
+ break;
+ case DOUBLE:
+ try (DoubleDictionary doubleDictionary = new
DoubleDictionary(dictionaryBuffer, length)) {
+
SegmentColumnarIndexCreator.addColumnMinMaxValueInfo(_segmentProperties,
columnName,
+ doubleDictionary.getStringValue(0),
doubleDictionary.getStringValue(length - 1));
+ }
+ break;
+ case STRING:
+ try (StringDictionary stringDictionary = new
StringDictionary(dictionaryBuffer, length,
+ columnMetadata.getColumnMaxLength())) {
+
SegmentColumnarIndexCreator.addColumnMinMaxValueInfo(_segmentProperties,
columnName,
+ stringDictionary.getStringValue(0),
stringDictionary.getStringValue(length - 1));
+ }
+ break;
+ case BYTES:
+ try (BytesDictionary bytesDictionary = new
BytesDictionary(dictionaryBuffer, length,
+ columnMetadata.getColumnMaxLength())) {
+
SegmentColumnarIndexCreator.addColumnMinMaxValueInfo(_segmentProperties,
columnName,
+ bytesDictionary.getStringValue(0),
bytesDictionary.getStringValue(length - 1));
+ }
+ break;
+ default:
+ throw new IllegalStateException("Unsupported data type: " + dataType
+ " for column: " + columnName);
+ }
+ } else if
(_segmentMetadata.getSchema().getFieldSpecFor(columnName).getFieldType() ==
FieldSpec.FieldType.METRIC) {
Review Comment:
I have made the change. However, do we also need to support MV fields? If
yes, the max and min will be the max and min values seen in any array or
something else? Thanks
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