X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FSQL%2FAbstract.pm;h=092598b70d4eacfeb5a29d03d0b44ce9415f1910;hb=41e16d4fde38c70c3ef76e487c2c813c92380690;hp=57186d214e36c91587ed44404834b0445f1b9585;hpb=16b0a9ea4f2787a4b16147ef179b30fb0173d8aa;p=dbsrgits%2FSQL-Abstract.git

diff --git a/lib/SQL/Abstract.pm b/lib/SQL/Abstract.pm
index 57186d2..092598b 100644
--- a/lib/SQL/Abstract.pm
+++ b/lib/SQL/Abstract.pm
@@ -691,7 +691,7 @@ sub _expand_expr_hashpair {
           sort keys %$v
       ] };
     }
-    return { -literal => [ '' ] } unless keys %$v;
+    return undef unless keys %$v;
     my ($vk, $vv) = %$v;
     $vk =~ s/^-//;
     $vk = lc($vk);