fn merge_schema(
input_schemas: Vec<(&SchemaInfo, OpenTelemetryLogRecordAttrType)>,
) -> BTreeMap<&String, (OpenTelemetryLogRecordAttrType, usize, &ColumnSchema)>
fn merge_schema(
input_schemas: Vec<(&SchemaInfo, OpenTelemetryLogRecordAttrType)>,
) -> BTreeMap<&String, (OpenTelemetryLogRecordAttrType, usize, &ColumnSchema)>