feat(transaction): add OverwriteAction with CoW delete support

crates/iceberg/src/spec/manifest/writer.rs

@@ -341,6 +341,14 @@ impl ManifestWriter {
         Ok(())
     }
 
+    /// Add a deleted manifest entry, preserving the original sequence numbers.
+    pub(crate) fn add_deleted_entry(&mut self, mut entry: ManifestEntry) -> Result<()> {
+        self.check_data_file(&entry.data_file)?;
+        entry.status = ManifestStatus::Deleted;
+        self.add_entry_inner(entry)?;
+        Ok(())
+    }
+
     /// Add an file as existing manifest entry. The original data and file sequence numbers, snapshot ID,
     /// which were assigned at commit, must be preserved when adding an existing entry.
     pub fn add_existing_file(

crates/iceberg/src/transaction/append.rs

@@ -90,6 +90,7 @@ impl TransactionAction for FastAppendAction {
             self.key_metadata.clone(),
             self.snapshot_properties.clone(),
             self.added_data_files.clone(),
+            vec![],
         );
 
         // validate added files
@@ -138,7 +139,9 @@ impl SnapshotProduceOperation for FastAppendOperation {
         Ok(manifest_list
             .entries()
             .iter()
-            .filter(|entry| entry.has_added_files() || entry.has_existing_files())
+            .filter(|entry| {
+                entry.has_added_files() || entry.has_existing_files() || entry.has_deleted_files()
+            })
             .cloned()
             .collect())
     }

crates/iceberg/src/transaction/mod.rs

@@ -54,6 +54,7 @@ mod action;
 
 pub use action::*;
 mod append;
+mod overwrite;
 mod snapshot;
 mod sort_order;
 mod update_location;
@@ -71,6 +72,7 @@ use crate::spec::TableProperties;
 use crate::table::Table;
 use crate::transaction::action::BoxedTransactionAction;
 use crate::transaction::append::FastAppendAction;
+use crate::transaction::overwrite::OverwriteAction;
 use crate::transaction::sort_order::ReplaceSortOrderAction;
 use crate::transaction::update_location::UpdateLocationAction;
 use crate::transaction::update_properties::UpdatePropertiesAction;
@@ -141,6 +143,11 @@ impl Transaction {
         FastAppendAction::new()
     }
 
+    /// Creates an overwrite action.
+    pub fn overwrite(&self) -> OverwriteAction {
+        OverwriteAction::new()
+    }
+
     /// Creates replace sort order action.
     pub fn replace_sort_order(&self) -> ReplaceSortOrderAction {
         ReplaceSortOrderAction::new()