From 5ec949e910342f6212c85c8df75283d091817408 Mon Sep 17 00:00:00 2001
From: Adam Chlipala <adam@chlipala.net>
Date: Sat, 15 Jan 2011 14:53:13 -0500
Subject: Allow subqueries to reference aggregate-only columns of free tables;
 treat non-COUNT aggregate functions as possibly returning NULL

---
 src/mono_env.sig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/mono_env.sig')

diff --git a/src/mono_env.sig b/src/mono_env.sig
index c5ca7c0b..97d7d9ea 100644
--- a/src/mono_env.sig
+++ b/src/mono_env.sig
@@ -50,5 +50,6 @@ signature MONO_ENV = sig
     val patBindsN : Mono.pat -> int
 
     val liftExpInExp : int -> Mono.exp -> Mono.exp
-                                                 
+    val subExpInExp : (int * Mono.exp) -> Mono.exp -> Mono.exp
+
 end
-- 
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