clintropolis commented on code in PR #15417:
URL: https://github.com/apache/druid/pull/15417#discussion_r1407487064
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processing/src/main/java/org/apache/druid/segment/AutoTypeColumnIndexer.java:
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@@ -133,6 +150,51 @@ public EncodedKeyComponent<StructuredData>
processRowValsToUnsortedEncodedKeyCom
} else if (isConstant) {
isConstant = Objects.equals(dimValues, constantValue);
}
+
+ if (castToExpressionType != null) {
+ return processCast(dimValues);
+ } else {
+ return processAuto(dimValues);
+ }
+ }
+
+ /**
+ * Process values which will all be cast to {@link #castToExpressionType}.
This method should not be used for
+ * and does not handle actual nested data structures, use {@link
#processAuto(Object)} instead.
+ */
+ private EncodedKeyComponent<StructuredData> processCast(@Nullable Object
dimValues)
+ {
+ final long oldDictSizeInBytes = globalDictionary.sizeInBytes();
+ final int oldFieldKeySize = estimatedFieldKeySize;
+ ExprEval<?> eval = ExprEval.bestEffortOf(dimValues);
+ try {
+ eval = eval.castTo(castToExpressionType);
+ FieldIndexer fieldIndexer =
fieldIndexers.get(NestedPathFinder.JSON_PATH_ROOT);
+ if (fieldIndexer == null) {
+ estimatedFieldKeySize +=
StructuredDataProcessor.estimateStringSize(NestedPathFinder.JSON_PATH_ROOT);
+ fieldIndexer = new FieldIndexer(globalDictionary);
+ fieldIndexers.put(NestedPathFinder.JSON_PATH_ROOT, fieldIndexer);
+ }
+ StructuredDataProcessor.ProcessedValue<?> rootValue =
fieldIndexer.processValue(eval);
+ long effectiveSizeBytes = rootValue.getSize();
+ // then, we add the delta of size change to the global dictionaries to
account for any new space added by the
+ // 'raw' data
+ effectiveSizeBytes += (globalDictionary.sizeInBytes() -
oldDictSizeInBytes);
+ effectiveSizeBytes += (estimatedFieldKeySize - oldFieldKeySize);
+ return new EncodedKeyComponent<>(StructuredData.wrap(eval.value()),
effectiveSizeBytes);
+ }
+ catch (IAE invalidCast) {
Review Comment:
the exception is passed in as the cause of the ParseException so i think it
should show up?
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