Is it considered ok for the pstate data structures to have references to nodes in the query tree? Or should they do copyObject() if they need to refer to them?
Is it ok to scribble on and reuse objects from the parse tree when generating the transformed tree? Or should the transformed query object be built from freshly allocated nodes? -- Gregory Stark EnterpriseDB http://www.enterprisedb.com ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster
