jonvex commented on code in PR #10677:
URL: https://github.com/apache/hudi/pull/10677#discussion_r1507906025
##########
hudi-common/src/main/java/org/apache/hudi/avro/AvroSchemaUtils.java:
##########
@@ -428,25 +408,95 @@ public static void checkSchemaCompatible(
boolean allowProjection,
Set<String> dropPartitionColNames) throws SchemaCompatibilityException {
- String errorMessage = null;
-
- if (!allowProjection && !canProject(tableSchema, writerSchema,
dropPartitionColNames)) {
- errorMessage = "Column dropping is not allowed";
+ if (!allowProjection) {
+ List<Schema.Field> missingFields = findMissingFields(tableSchema,
writerSchema, dropPartitionColNames);
+ if (!missingFields.isEmpty()) {
+ throw new
MissingSchemaFieldException(missingFields.stream().map(Schema.Field::name).collect(Collectors.toList()));
+ }
}
// TODO(HUDI-4772) re-enable validations in case partition columns
// being dropped from the data-file after fixing the write
schema
- if (dropPartitionColNames.isEmpty() && shouldValidate &&
!isSchemaCompatible(tableSchema, writerSchema)) {
- errorMessage = "Failed schema compatibility check";
+ if (dropPartitionColNames.isEmpty() && shouldValidate) {
+ AvroSchemaCompatibility.SchemaPairCompatibility result =
+ AvroSchemaCompatibility.checkReaderWriterCompatibility(writerSchema,
tableSchema, true);
+ if (result.getType() !=
AvroSchemaCompatibility.SchemaCompatibilityType.COMPATIBLE) {
+ throw new SchemaBackwardsCompatibilityException(result);
+ }
}
+ }
- if (errorMessage != null) {
- String errorDetails = String.format(
- "%s\nwriterSchema: %s\ntableSchema: %s",
- errorMessage,
- writerSchema,
- tableSchema);
- throw new SchemaCompatibilityException(errorDetails);
+ /**
+ * Validate whether the {@code incomingSchema} is a valid evolution of
{@code tableSchema}.
+ *
+ * @param incomingSchema schema of the incoming dataset
+ * @param tableSchema latest table schema
+ */
+ public static void checkValidEvolution(Schema incomingSchema, Schema
tableSchema) {
Review Comment:
@codope that's what this pr does!!
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
