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Tom Lane d76606f077 Doc: remove misleading info about ecpg's CONNECT/DISCONNECT DEFAULT. ... As far as I can see, ecpg has no notion of a "default" open connection. You can do "CONNECT TO DEFAULT" but that just specifies letting libpq use all its default connection parameters --- the resulting connection is not special subsequently. In particular, SET CONNECTION = DEFAULT and DISCONNECT DEFAULT simply act on a connection named DEFAULT, if you've made one; they do not have special lookup rules. But the documentation of these commands makes it look like they do. Simplest fix, I think, is just to remove the paras suggesting that DEFAULT is special here. Also, SET CONNECTION *does* have one special lookup rule, which is that it recognizes CURRENT as an alias for the currently selected connection. SET CONNECTION = CURRENT is a no-op, so it's pretty useless, but nonetheless it does something different from selecting a connection by name; so we'd better document it. Per report from Sylvain Frandaz. Back-patch to all supported versions. Discussion: https://postgr.es/m/169824721149.1769274.1553568436817652238@wrigleys.postgresql.org		2 years ago
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src	Doc: remove misleading info about ecpg's CONNECT/DISCONNECT DEFAULT.	2 years ago
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