From: Matt S Trout <mst@shadowcat.co.uk>
Date: Wed, 27 Feb 2019 06:27:29 +0000 (+0000)
Subject: kill last empty string literal
X-Git-Tag: v1.90_01~392
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=2f88d4950dbd9ff3fd041c3a1da5b6a75646051c;p=dbsrgits%2FSQL-Abstract.git

kill last empty string literal
---

diff --git a/lib/SQL/Abstract.pm b/lib/SQL/Abstract.pm
index a7b0da5..9d7d4a3 100644
--- a/lib/SQL/Abstract.pm
+++ b/lib/SQL/Abstract.pm
@@ -517,7 +517,7 @@ sub _expand_expr {
           sort keys %$expr
       ] };
     }
-    return { -literal => [ '' ] } unless keys %$expr;
+    return undef unless keys %$expr;
     return $self->_expand_expr_hashpair(%$expr, $logic);
   }
   if (ref($expr) eq 'ARRAY') {