buraksenn commented on code in PR #24224:
URL: https://github.com/apache/datafusion/pull/24224#discussion_r3751762626


##########
datafusion/proto-models/proto/datafusion.proto:
##########
@@ -1289,8 +1289,20 @@ message AvroScanExecNode {
   FileScanExecConf base_conf = 1;
 }
 
+// Identifies which Arrow IPC format an ArrowScanExecNode reads.
+enum ArrowIpcFormat {
+  // Unset in payloads encoded before this field existed; decoded as the
+  // IPC file format for backward compatibility.
+  ARROW_IPC_FORMAT_UNSPECIFIED = 0;
+  // Arrow IPC file format (with footer, supports range-based parallel reading)
+  ARROW_IPC_FORMAT_FILE = 1;
+  // Arrow IPC stream format (without footer, sequential reading only)
+  ARROW_IPC_FORMAT_STREAM = 2;
+}

Review Comment:
   thanks @Rich-T-kid, yes that was the case. I wanted to put it to not break 
anything but as you've said its interpreted as file anyways. Applied the change 
now and it simplified the code as well.



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