r9114: fixes for list-indexes

[clsql.git] / base / db-interface.lisp

diff --git a/base/db-interface.lisp b/base/db-interface.lisp
index d257a5fa3342c70616f117e4eefb23dd33c16c98..d874a7f67dfa15249b46bd7eae2e1368d061ea70 100644 (file)
--- a/base/db-interface.lisp
+++ b/base/db-interface.lisp
@@ -204,6 +204,15 @@ the given lisp type and parameters."))
 (defgeneric oid (object)
   (:documentation "Return the unique ID of a database object."))
 
+;;; Database backend capabilities
+
+(defgeneric db-use-column-on-drop-index? (database)
+  (:method (database)
+          (declare (ignore database))
+          ;; Standard SQL does not use column name on DROP INDEX
+          nil)
+  (:documentation "NIL [default] lif database does not use column name on DROP INDEX."))
+
 
 ;;; Large objects support (Marc Battyani)