I know this is an attempt to save myself reading the mailing list, but still the issue remains:
the psql from version 7.4 does not talk to a 7.2.4 database. The CHANGELOG indicates, that both server and libraries keep compatibility with versions after 6.3 - still there is no switch in psql to specify usage of the pre-7.3 protocol and the 7.2 server and 7.4 psql apparently do not negotiate. Daniel ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match