namrathamyske commented on code in PR #6651:
URL: https://github.com/apache/iceberg/pull/6651#discussion_r1085931463


##########
spark/v3.3/spark/src/main/java/org/apache/iceberg/spark/source/SparkTable.java:
##########
@@ -247,9 +247,6 @@ public ScanBuilder newScanBuilder(CaseInsensitiveStringMap 
options) {
 
   @Override
   public WriteBuilder newWriteBuilder(LogicalWriteInfo info) {
-    Preconditions.checkArgument(
-        snapshotId == null, "Cannot write to table at a specific snapshot: 
%s", snapshotId);

Review Comment:
   @rdblue Can we add more checks that if the snapshot Id is the tip of the 
branch, then writing to branch is supported ? 
   If its the tip of the branch, then spark write should be supported.
   I believe when we so
   `spark...save(table);`
   We are calling
   `catalog.loadtable(ident)`
   In DataFrameWriter.
   
   When passing
   `spark..option("branch","..")`
   the snapshotId() is getting set



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