SinghAsDev commented on a change in pull request #3774:
URL: https://github.com/apache/iceberg/pull/3774#discussion_r795248411
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File path:
parquet/src/main/java/org/apache/iceberg/parquet/ParquetSchemaUtil.java
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@@ -164,4 +165,62 @@ public Boolean primitive(PrimitiveType primitive) {
}
}
+ public static Type determineListElementType(GroupType array) {
+ Type repeated = array.getFields().get(0);
+ boolean isOldListElementType = isOldListElementType(array);
+
+ Preconditions.checkArgument(isOldListElementType ||
+ repeated.asGroupType().getFieldCount() <= 1,
+ "Invalid list: repeated group is not a single field: %s", array);
Review comment:
Good point, I probably got this while refactoring `ParquetTypeVisitor`.
Dropping, thanks.
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