"Matt Magoffin" <postgresql.org@xxxxxxx> writes: > I understand. I cannot make the SELECT query nor the ADD INDEX command > break on an empty database. I cannot share this database data, either. So try to make a test case using dummy data, or with suitably obscured versions of your real data. Also, consider compiling a debug-enabled build and showing us a gdb stack trace from the core dump. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster