Sounds like we have a couple issues to sort out. As an aside, we are actually making some changes to the influxdb_listener plugin right now, and we are actually planning to remove the line limiter and use only the max body limit in 1.14.
A quick test seems to show that the string fields can be larger than 65KiB, I’ll ask around on if there is a maximum. I’ll also look into adding the 64KiB limit to the line protocol parser, or perhaps only when we are serializing the data the limit should be applied.
There has been some discussion about this particular query, and I’m beginning to think we should move this item to a field. Check out #6976 and #6678. In the meantime, you can use the converter processor to convert it to a string field.
