diff --git a/uppsrc/Sql/SqlSet.cpp b/uppsrc/Sql/SqlSet.cpp
index cab1fa10c..63f0d460a 100644
--- a/uppsrc/Sql/SqlSet.cpp
+++ b/uppsrc/Sql/SqlSet.cpp
@@ -17,7 +17,13 @@ SqlSet operator&(const SqlSet& s1, const SqlSet& s2) {
 SqlSet operator-(const SqlSet& s1, const SqlSet& s2) {
 	if(s1.IsEmpty() || s2.IsEmpty())
 		return s1;
-	return SqlSet(s1() + SqlCase(MSSQL, " except ")(" minus ") + s2(), SqlSet::SETOP);
+	return SqlSet(s1() + SqlCase(MSSQL|PGSQL, " except ")(" minus ") + s2(), SqlSet::SETOP);
+}
+
+SqlSet operator-(const SqlSet& s1, const SqlSet& s2) {
+	if(s1.IsEmpty() || s2.IsEmpty())
+		return s1;
+	return SqlSet(s1() + SqlCase(MSSQL|PGSQL, " except ")(" minus ") + s2(), SqlSet::SETOP);
 }
 
 String SqlSet::operator~() const {
diff --git a/uppsrc/Sql/SqlStatement.cpp b/uppsrc/Sql/SqlStatement.cpp
index 286f57b54..e5d8be824 100644
--- a/uppsrc/Sql/SqlStatement.cpp
+++ b/uppsrc/Sql/SqlStatement.cpp
@@ -19,7 +19,7 @@ SqlSelect& SqlSelect::operator&=(const SqlSelect& s2) {
 }
 
 SqlSelect& SqlSelect::operator-=(const SqlSelect& s2) {
-	text << " minus (" << s2.text << ')';
+	text << SqlCase(MSSQL|PGSQL," except (")(" minus (") << s2.text << ')';
 	return *this;
 }