libpq: How to cancel a COPY ... TO statement?

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От Daniel Frey
Тема libpq: How to cancel a COPY ... TO statement?
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Msg-id 63674FDD-D20C-4EB3-A0E3-3C04C4BF802F@gmx.de
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Hi,

after sending a COPY ... TO statement with PQsendQuery(), how can I cancel it properly?

I tried using PQcancel(), but it seems to have no effect. Calling PQgetCopyData() or PQgetResult() afterwards does not
gointo a failure state. And I don't want to call PQgetCopyData() until it returns -1, as this might be a lot of data
beingread from the server that I don't need. 

BR, Daniel

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