toddmeng-db commented on code in PR #3140:
URL: https://github.com/apache/arrow-adbc/pull/3140#discussion_r2213774571
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csharp/src/Drivers/Databricks/DatabricksStatement.cs:
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@@ -64,10 +64,53 @@ public DatabricksStatement(DatabricksConnection connection)
enablePKFK = connection.EnablePKFK;
}
+ /// <summary>
+ /// Gets the schema from metadata response. Handles both Arrow schema
(Protocol V5+) and traditional Thrift schema.
+ /// </summary>
+ /// <param name="metadata">The metadata response containing schema
information</param>
+ /// <returns>The Arrow schema</returns>
+ protected override Schema
GetSchemaFromMetadata(TGetResultSetMetadataResp metadata)
+ {
+ // For Protocol V5+, prefer Arrow schema if available
+ if (metadata.__isset.arrowSchema)
+ {
+ Schema? arrowSchema =
((DatabricksSchemaParser)Connection.SchemaParser).ParseArrowSchema(metadata.ArrowSchema);
+ if (arrowSchema != null)
+ {
+ return arrowSchema;
+ }
+ }
+
+ // Fallback to traditional Thrift schema
+ return Connection.SchemaParser.GetArrowSchema(metadata.Schema,
Connection.DataTypeConversion);
Review Comment:
Yes, I'll need to take a look at other places this is used
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