Add a new `sqlite-pragma' command

* doc/lispref/text.texi (Database): Document it.
* src/sqlite.c (Fsqlite_pragma): Add a separate command for
pragmas.  These can be done via sqlite-execute, but it's less
confusing to have them in a separate command.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/sqlite.c b/src/sqlite.c
index 38e939cd84a..4968ce3f690 100644
--- a/src/sqlite.c
+++ b/src/sqlite.c
@@ -574,6 +574,17 @@ DEFUN ("sqlite-rollback", Fsqlite_rollback, Ssqlite_rollback, 1, 1, 0,
   return sqlite_exec (XSQLITE (db)->db, "rollback");
 }
 
+DEFUN ("sqlite-pragma", Fsqlite_pragma, Ssqlite_pragma, 2, 2, 0,
+       doc: /* Execute PRAGMA in DB.  */)
+  (Lisp_Object db, Lisp_Object pragma)
+{
+  check_sqlite (db, false);
+  CHECK_STRING (pragma);
+
+  return sqlite_exec (XSQLITE (db)->db,
+		      SSDATA (concat2 (build_string ("PRAGMA "), pragma)));
+}
+
 #ifdef HAVE_SQLITE3_LOAD_EXTENSION
 DEFUN ("sqlite-load-extension", Fsqlite_load_extension,
        Ssqlite_load_extension, 2, 2, 0,
@@ -689,6 +700,7 @@ syms_of_sqlite (void)
   defsubr (&Ssqlite_transaction);
   defsubr (&Ssqlite_commit);
   defsubr (&Ssqlite_rollback);
+  defsubr (&Ssqlite_pragma);
 #ifdef HAVE_SQLITE3_LOAD_EXTENSION
   defsubr (&Ssqlite_load_extension);
 #endif