msrathore-db commented on code in PR #3617:
URL: https://github.com/apache/arrow-adbc/pull/3617#discussion_r2492381794
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csharp/src/Drivers/Databricks/DatabricksStatement.cs:
##########
@@ -88,22 +89,34 @@ public DatabricksStatement(DatabricksConnection connection)
/// <returns>The Arrow schema</returns>
protected override Schema
GetSchemaFromMetadata(TGetResultSetMetadataResp metadata)
{
+ // Log schema parsing decision
+ Activity.Current?.SetTag("statement.schema.has_arrow_schema",
metadata.__isset.arrowSchema);
+
// For Protocol V5+, prefer Arrow schema if available
if (metadata.__isset.arrowSchema)
{
Schema? arrowSchema =
((DatabricksSchemaParser)Connection.SchemaParser).ParseArrowSchema(metadata.ArrowSchema);
if (arrowSchema != null)
{
+ Activity.Current?.SetTag("statement.schema.source",
"arrow");
+ Activity.Current?.SetTag("statement.schema.column_count",
arrowSchema.FieldsList.Count);
+
Activity.Current?.AddEvent("statement.schema.using_arrow_schema");
return arrowSchema;
}
}
// Fallback to traditional Thrift schema
- return Connection.SchemaParser.GetArrowSchema(metadata.Schema,
Connection.DataTypeConversion);
+ Activity.Current?.SetTag("statement.schema.source", "thrift");
+ Activity.Current?.AddEvent("statement.schema.fallback_to_thrift");
Review Comment:
Updated. Thanks
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