feat(iceberg): introduce remove snapshot action

crates/iceberg/src/lib.rs

@@ -52,6 +52,7 @@
 //! ```
 
 #![deny(missing_docs)]
+#![feature(anonymous_lifetime_in_impl_trait)]
 
 #[macro_use]
 extern crate derive_builder;

crates/iceberg/src/spec/snapshot.rs

@@ -175,7 +175,6 @@ impl Snapshot {
     }
 
     /// Get parent snapshot.
-    #[cfg(test)]
     pub(crate) fn parent_snapshot(&self, table_metadata: &TableMetadata) -> Option<SnapshotRef> {
         match self.parent_snapshot_id {
             Some(id) => table_metadata.snapshot_by_id(id).cloned(),

crates/iceberg/src/spec/table_metadata.rs

@@ -78,6 +78,19 @@ pub const PROPERTY_METADATA_PREVIOUS_VERSIONS_MAX: &str = "write.metadata.previo
 /// Default value for max number of previous versions to keep.
 pub const PROPERTY_METADATA_PREVIOUS_VERSIONS_MAX_DEFAULT: usize = 100;
 
+/// Property key for max snapshot age in milliseconds.
+pub const MAX_SNAPSHOT_AGE_MS: &str = "history.expire.max-snapshot-age-ms";
+/// Default value for max snapshot age in milliseconds.
+pub const MAX_SNAPSHOT_AGE_MS_DEFAULT: i64 = 5 * 24 * 60 * 60 * 1000; // 5 days
+/// Property key for min snapshots to keep.
+pub const MIN_SNAPSHOTS_TO_KEEP: &str = "history.expire.min-snapshots-to-keep";
+/// Default value for min snapshots to keep.
+pub const MIN_SNAPSHOTS_TO_KEEP_DEFAULT: i32 = 1;
+/// Property key for max reference age in milliseconds.
+pub const MAX_REF_AGE_MS: &str = "history.expire.max-ref-age-ms";
+/// Default value for max reference age in milliseconds.
+pub const MAX_REF_AGE_MS_DEFAULT: i64 = i64::MAX;
+
 /// Reserved Iceberg table properties list.
 ///
 /// Reserved table properties are only used to control behaviors when creating or updating a