rdblue commented on a change in pull request #830: Support name mapping
resolution for parquet
URL: https://github.com/apache/incubator-iceberg/pull/830#discussion_r405002305
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File path:
parquet/src/main/java/org/apache/iceberg/parquet/ParquetSchemaUtil.java
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@@ -87,29 +82,21 @@ public static boolean hasIds(MessageType fileSchema) {
// Try to convert the type to Iceberg. If an ID assignment is needed,
return false.
ParquetTypeVisitor.visit(fileSchema, new MessageTypeToType(fileSchema) {
@Override
- protected int nextId() {
- throw new IllegalStateException("Needed to assign ID");
+ protected int getId(org.apache.parquet.schema.Type type) {
+ org.apache.parquet.schema.Type.ID id = type.getId();
+ if (id != null) {
+ throw new IllegalStateException("at least one ID exists");
Review comment:
It is fine if not everything has an ID. Columns without IDs will be ignored
and should not cause a read to fail.
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