kobeyk commented on issue #1853: The $in operator in _find makes the queries very slow URL: https://github.com/apache/couchdb/issues/1853#issuecomment-453700931 @wohali this is my query explain: { "dbname": "block", "index": { "ddoc": "_design/b25ce9a6eaeca74ab29f8b0b4d6527f693362264", "name": "fid-json-index", "type": "json", "def": { "fields": [ { "fid": "asc" } ] } }, "selector": { "$and": [ { "fid": { "$in": [ 3692398112768 ] } } ] }, "opts": { "use_index": [], "bookmark": "nil", "limit": 20, "skip": 0, "sort": {}, "fields": [ "_id", "fid", "_rev", "name", "des", "type", "fname", "extension", "mtime", "uid", "icon" ], "r": [ 49 ], "conflicts": false, "stale": false, "update": true, "stable": false, "execution_stats": false }, "limit": 20, "skip": 0, "fields": [ "_id", "fid", "_rev", "name", "des", "type", "fname", "extension", "mtime", "uid", "icon" ], "mrargs": { "include_docs": true, "view_type": "map", "reduce": false, "start_key": [], "end_key": [ "<MAX>" ], "direction": "fwd", "stable": false, "update": true, "conflicts": "undefined" } } ======================================= full database scan
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