Hi,
pg_prewarm() currently can't be cannot be interrupted - which seems odd
given that it's intended to read large amounts of data from disk. A
rather slow process.
Unless somebody protests I'm going to add a check to the top of each of
the three loops.
Greetings,
Andres Freund
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Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services