ankitsultana commented on code in PR #12222:
URL: https://github.com/apache/pinot/pull/12222#discussion_r1446620924


##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/utils/TableConfigUtils.java:
##########
@@ -729,8 +729,11 @@ static void validateUpsertAndDedupConfig(TableConfig 
tableConfig, Schema schema)
       if (deleteRecordColumn != null) {
         FieldSpec fieldSpec = schema.getFieldSpecFor(deleteRecordColumn);
         Preconditions.checkState(
-            fieldSpec != null && fieldSpec.isSingleValueField() && 
fieldSpec.getDataType() == DataType.BOOLEAN,
-            "The delete record column must be a single-valued BOOLEAN column");
+            fieldSpec != null && fieldSpec.isSingleValueField(),
+            "The delete record column must be a single-valued column");
+        DataType dataType = fieldSpec.getDataType();
+        Preconditions.checkState(dataType == DataType.BOOLEAN || dataType == 
DataType.STRING
+                || dataType.isNumeric(), "The delete record column must be of 
type: STRING / Boolean / numeric");

Review Comment:
   nit: consistent casing `String / Boolean / Numeric`



##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/utils/TableConfigUtils.java:
##########
@@ -729,8 +729,11 @@ static void validateUpsertAndDedupConfig(TableConfig 
tableConfig, Schema schema)
       if (deleteRecordColumn != null) {
         FieldSpec fieldSpec = schema.getFieldSpecFor(deleteRecordColumn);
         Preconditions.checkState(
-            fieldSpec != null && fieldSpec.isSingleValueField() && 
fieldSpec.getDataType() == DataType.BOOLEAN,
-            "The delete record column must be a single-valued BOOLEAN column");
+            fieldSpec != null && fieldSpec.isSingleValueField(),
+            "The delete record column must be a single-valued column");

Review Comment:
   nit: if `fieldSpec == null`, then the user may have input a invalid column 
name. Can we explicitly convey that message back to them? (currently we will 
return that the column must be single-valued)



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