Function isQueryCancelled

server/conn_errors.go:17–19

isQueryCancelled checks whether an error string indicates that *some* context cancellation was involved. It does NOT distinguish caller-driven cancellation (Ctrl-C, client disconnect, deadline) from infra-driven cancellation (worker died, CP closed the gRPC client) — both surface here as a wrapped "

(err error)

// since infra cancels are real failures we want surfaced. Use
// (*clientConn).isCallerCancellation for that.
func isQueryCancelled(err error) bool {
	return err == context.Canceled || (err != nil && strings.Contains(err.Error(), "context canceled"))
}

// isCallerCancellation reports whether err is a cancellation that the caller
// asked for — either through pgwire CancelRequest, an explicit ctx cancel, or