René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Don't render empty groups","articleBody":"**Is your feature request related to a problem? Please describe.**\r\nCurrently creating an empty group using `.and(q -\u003e q)` or `.or(q -\u003e q)` will result in an empty expression group which will make the query fail.\r\n\r\n**Describe the solution you'd like**\r\nInstead of producing invalid sql the empty group (and the preceding conjunction) shouldn't be rendered.\r\n\r\n**Describe alternatives you've considered**\r\nAn alternative would be to produce an always false expression but that's probably not what somebody would expect and makes building optional clauses way harder.\r\n","author":{"url":"https://github.com/JanHolger","@type":"Person","name":"JanHolger"},"datePublished":"2022-04-07T15:49:18.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/36/orm/issues/36"}