Merge pull request woocommerce/woocommerce-admin#2819 from woocommerce/add/notes-where-clause-filters

Add filter to notes datastore where clauses

plugins/woocommerce-admin/src/Notes/DataStore.php

@@ -371,7 +371,15 @@ class DataStore extends \WC_Data_Store_WP implements \WC_Object_Data_Store_Inter
 			$where_clauses .= " AND status IN ($escaped_status_types)";
 		}
 
-		return $where_clauses;
+		/**
+		 * Filter the notes WHERE clause before retrieving the data.
+		 *
+		 * Allows modification of the notes select criterial.
+		 *
+		 * @param string $where_clauses The generated WHERE clause.
+		 * @param array  $args          The original arguments for the request.
+		 */
+		return apply_filters( 'wc_admin_notes_where_clauses', $where_clauses, $args );
 	}
 
 	/**