fix: consider schema when commenting on a column or table (#19612) (#…

…19795)

Co-authored-by: lmatz <[email protected]>

e2e_test/ddl/show.slt

@@ -224,6 +224,12 @@ create schema show_another_schema;
 statement ok
 create table show_another_schema.t_another (v1 int);
 
+statement ok
+comment on table "show_another_schema"."t_another" IS 'test table description with schema';
+
+statement ok
+comment on column "show_another_schema"."t_another".v1 IS 'test column description with schema';
+
 statement ok
 create table t4 (v1 int);
 

src/frontend/src/handler/comment.rs

@@ -48,8 +48,8 @@ pub async fn handle_comment(
                 )?;
 
                 let (database_id, schema_id) =
-                    session.get_database_and_schema_id_for_create(schema)?;
-                let table = binder.bind_table(None, &table, None)?;
+                    session.get_database_and_schema_id_for_create(schema.clone())?;
+                let table = binder.bind_table(schema.as_deref(), &table, None)?;
                 binder.bind_columns_to_context(col.real_value(), &table.table_catalog.columns)?;
 
                 let column = binder.bind_column(object_name.0.as_slice())?;
@@ -66,8 +66,8 @@ pub async fn handle_comment(
                 let (schema, table) =
                     Binder::resolve_schema_qualified_name(session.database(), object_name)?;
                 let (database_id, schema_id) =
-                    session.get_database_and_schema_id_for_create(schema)?;
-                let table = binder.bind_table(None, &table, None)?;
+                    session.get_database_and_schema_id_for_create(schema.clone())?;
+                let table = binder.bind_table(schema.as_deref(), &table, None)?;
 
                 PbComment {
                     table_id: table.table_id.into(),