RethinkDB listen for changes on filter query? -

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i'm not sure if understand changefeeds correct... need filter data based on current date this:

r.table("messages")   .filter(     r.row("start").lt(r.now().toiso8601())       .and(r.row("end").gt(r.now().toiso8601()))   )   .changes()   .run(conn, (err, cursor) => {     if (err) {       throw err;     }      cursor.each(function (err, row) {       if (err) {         throw err;       }       // stuff here      });   });

});

is possible this? or .changes() work if field of row updated?

it's possible , syntax right.

however, note in case miss it. r.now() evaluated first time ever run query, not current time when changes happens. r.now() calculated 1 time in same query , return value re-use on sub sequent calls: https://www.rethinkdb.com/api/javascript/now/

changefeeds works both of insert , updating. if insert/updated document match condition of filter, return in cursor. if it's insert, old_val null, if it's update, old_val old value.


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