Benjamin Trent f00dfb2d5f
[ML] adds WKT support in filestructurefinder (#57014) (#57032)
Field mapping detection is done via grok patterns. 
This commit adds well-known text (WKT) formatted geometry detection.

If everything is a `POINT`, then a `geo_point` mapping is preferred. 
Otherwise, if all the fields are WKT geometries a `geo_shape` mapping is preferred.

This does **NOT** detect other types of formatted geometries (geohash, comma delimited points, etc.)

closes https://github.com/elastic/elasticsearch/issues/56967
2020-05-21 08:22:51 -04:00
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