gengliangwang commented on code in PR #47425:
URL: https://github.com/apache/spark/pull/47425#discussion_r1724060133
##########
connector/avro/src/main/scala/org/apache/spark/sql/avro/SchemaConverters.scala:
##########
@@ -201,29 +259,33 @@ object SchemaConverters {
s,
existingRecordNames,
useStableIdForUnionType,
- stableIdPrefixForUnionType)
-
- val fieldName = if (useStableIdForUnionType) {
- // Avro's field name may be case sensitive, so field names
for two named type
- // could be "a" and "A" and we need to distinguish them. In
this case, we throw
- // an exception.
- // Stable id prefix can be empty so the name of the field
can be just the type.
- val tempFieldName =
s"${stableIdPrefixForUnionType}${s.getName}"
- if
(!fieldNameSet.add(tempFieldName.toLowerCase(Locale.ROOT))) {
- throw new IncompatibleSchemaException(
- "Cannot generate stable identifier for Avro union type
due to name " +
- s"conflict of type name ${s.getName}")
- }
- tempFieldName
+ stableIdPrefixForUnionType,
+ recursiveFieldMaxDepth)
+ if (schemaType == null) {
+ null
} else {
- s"member$i"
- }
+ val fieldName = if (useStableIdForUnionType) {
Review Comment:
I meant the recursive union schema with more than 2 non-null fields.
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