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That's more consistent with the style we have been using with for example EXPLAIN, VACUUM or ANALYZE (this one had only one option in v11). Based on a suggestion from Pavel Stehule. Author: Josef Šimánek Discussion: https://postgr.es/m/CAFj8pRCrUS+eMFvssVPGZN-VDEMP3XN+1Dop0=CmeBq2D+dqOg@mail.gmail.com Discussion: https://postgr.es/m/CAFp7QwpeMPEtAR5AYpsG623ooMWX03wMjq5cpZn=X+6OCkfwJw@mail.gmail.com