Slightly more light weight health check #100
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Gitlab folks updated Rails connection health check to be
;instead ofSELECT 1because the empty query skips the query planner which makes the health check a tad bit easier on the database. Gitlab PR, Rails PRRails health checks are probably much more expensive given we run orders of magnitude more Rails processes than Pgcat processes. Nevertheless, I don't think it hurts to make the health checks less expensive.