saurabhd336 commented on code in PR #12532:
URL: https://github.com/apache/pinot/pull/12532#discussion_r1533277684
##########
pinot-core/src/main/java/org/apache/pinot/core/operator/transform/function/JsonExtractIndexTransformFunction.java:
##########
@@ -90,15 +90,12 @@ public void init(List<TransformFunction> arguments,
Map<String, ColumnContext> c
}
String resultsType = ((LiteralTransformFunction)
thirdArgument).getStringLiteral().toUpperCase();
boolean isSingleValue = !resultsType.endsWith("_ARRAY");
- // TODO: will support array type; the underlying
jsonIndexReader.getMatchingDocsMap supports the json path [*]
- if (!isSingleValue) {
- throw new IllegalArgumentException("jsonExtractIndex only supports
single value type");
- }
if (isSingleValue && inputJsonPath.contains("[*]")) {
Review Comment:
I personally would not prefer that, since `[*]` in the extract path
typically inherently implies that the user expects an array of values.. but
open to suggestions
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