Tom Lane wrote:
No. non-threaded apps do not need to change. The default is the old, 7.3 code: change the signal handler around the write calls. Which means that non-threaded apps are guaranteed to work without any changes, regardless of the libpq thread safety setting.Not really: it only solves the problem *if you change the application*, which is IMHO not acceptable. In particular, why should a non-threaded app expect to have to change to deal with this issue? But we can't safely build a thread-safe libpq.so for general use if it breaks non-threaded apps that haven't been changed.
Threaded apps would have to change, but how many threaded apps use libpq? They check their code anyway - either just add PQinitLib() or review (and potentialy update) their signal handling code if it match any of the gotchas of the transparent handling.
-- Manfred
-- Manfred
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