diff --git a/uppsrc/Sql/SqlVal.cpp b/uppsrc/Sql/SqlVal.cpp
index cd1f0de1a..55a2a7781 100644
--- a/uppsrc/Sql/SqlVal.cpp
+++ b/uppsrc/Sql/SqlVal.cpp
@@ -12,6 +12,11 @@ SqlCol SqlId::Of(SqlId id) const
 	return id.IsNull() ? ToString() : id.ToString() + '.' + ToString();
 }
 
+SqlId SqlId::operator[](const SqlId& id) const
+{
+	return id.IsNull() ? ToString() : ToString() + '.' + id.ToString();
+}
+
 SqlId SqlId::As(const char *as) const
 {
 	return id.IsNull() ? ToString() : ToString() + SqlCase(MSSQL | PGSQL, " as ")(" ") + as;
diff --git a/uppsrc/Sql/Sqlexp.h b/uppsrc/Sql/Sqlexp.h
index 445e30436..f692f4fac 100644
--- a/uppsrc/Sql/Sqlexp.h
+++ b/uppsrc/Sql/Sqlexp.h
@@ -106,8 +106,9 @@ public:
 	SqlCol        Of(SqlId id) const;
 	SqlId         As(const char *as) const;
 	SqlId         As(SqlId id) const         { return As(~~id); }
-	SqlId         operator [] (int i) const;
+	SqlId         operator[](int i) const;
 	SqlId         operator&(const SqlId& s) const;
+	SqlId         operator[](const SqlId& id) const;
 
 	SqlId()                                      {}
 	SqlId(const char *s) : id(s)                 {}