fix: set correct event cursor option

crates/walrus-service/src/node/dbtool.rs

@@ -58,6 +58,7 @@ use crate::{
                 blob_info_cf_options,
                 per_object_blob_info_cf_options,
                 per_object_pooled_blob_info_cf_options,
+                storage_pool_info_cf_options,
             },
             constants::{
                 aggregate_blob_info_cf_name,
@@ -72,6 +73,7 @@ use crate::{
                 secondary_slivers_column_family_name,
                 storage_pool_info_cf_name,
             },
+            event_cursor_cf_options,
         },
     },
 };
@@ -1198,11 +1200,13 @@ fn cf_options_for_name(
                 name if name == per_object_pooled_blob_info_cf_name() => {
                     per_object_pooled_blob_info_cf_options(factory)
                 }
-                name if name == storage_pool_info_cf_name() => factory.storage_pool_info(),
+                name if name == storage_pool_info_cf_name() => {
+                    storage_pool_info_cf_options(factory)
+                }
                 name if name == event_index_cf_name() => factory.standard(),
                 name if name == metadata_cf_name() => factory.metadata(),
                 name if name == node_status_cf_name() => factory.node_status(),
-                name if name == event_cursor_cf_name() => factory.event_cursor(),
+                name if name == event_cursor_cf_name() => event_cursor_cf_options(factory),
                 name if name == garbage_collector_table_cf_name() => factory.garbage_collector(),
                 _ => RocksdbOptions::default(),
             }

crates/walrus-service/src/node/storage.rs

@@ -73,6 +73,7 @@ pub use database_config::{DatabaseConfig, DatabaseTableOptionsFactory};
 
 mod event_cursor_table;
 pub(super) use event_cursor_table::EventProgress;
+pub(crate) use event_cursor_table::event_cursor_cf_options;
 
 mod event_sequencer;
 mod metrics;

crates/walrus-service/src/node/storage/event_cursor_table.rs

@@ -109,13 +109,10 @@ impl EventCursorTable {
     }
 
     pub fn options(db_table_opts_factory: &DatabaseTableOptionsFactory) -> (&'static str, Options) {
-        let mut options = db_table_opts_factory.event_cursor();
-        options.set_merge_operator(
-            "update_cursor_and_progress",
-            update_cursor_and_progress,
-            |_, _, _| None,
-        );
-        (event_cursor_cf_name(), options)
+        (
+            event_cursor_cf_name(),
+            event_cursor_cf_options(db_table_opts_factory),
+        )
     }
 
     pub fn reposition_event_cursor(
@@ -211,6 +208,19 @@ impl EventCursorTable {
     }
 }
 
+/// Returns the RocksDB options for the event cursor column family, including the merge operator.
+pub(crate) fn event_cursor_cf_options(
+    db_table_opts_factory: &DatabaseTableOptionsFactory,
+) -> Options {
+    let mut options = db_table_opts_factory.event_cursor();
+    options.set_merge_operator(
+        "update_cursor_and_progress",
+        update_cursor_and_progress,
+        |_, _, _| None,
+    );
+    options
+}
+
 #[tracing::instrument(level = Level::DEBUG, skip(operands))]
 fn update_cursor_and_progress(
     key: &[u8],