This used to work in 1.6 but no longer in 1.7 or 1.8, with error
.../pgmoon/init.lua:194: attempt to index field 'sock' (a nil value)

File app/db.lua

local pg = require('pgmoon')
return pg.new({...})

File app/handler.lua

local db = require('app.db')
function ware1(db)
	db:connect()
	-- do work
	db:keepalive()
end

function ware2(db)
	db:connect()
	-- do work
	db:keepalive()
end

function handler(db)
	ware1(db)
	-- do some work
	ware2(db)
	-- do more work
end

I found that the self.sock handle is set to nil after keepalive().
Can we call connect() after keepalive() if they are within the same request?

Thanks!