Fix failing tests

- ignore z-value in unit tests
- and use capabilities to block new tests on older versions that do not have this fix

Author: craigtaverner

x-pack/plugin/esql-core/src/main/java/org/elasticsearch/xpack/esql/core/util/SpatialCoordinateTypes.java

@@ -35,7 +35,8 @@ public long pointAsLong(double x, double y) {
         }
 
         public GeometryValidator validator() {
-            return GeographyValidator.instance(false);
+            // We validate the lat/lon values, and ignore any z values
+            return GeographyValidator.instance(true);
         }
     },
     CARTESIAN {

x-pack/plugin/esql/qa/testFixtures/src/main/resources/spatial.csv-spec

@@ -1790,6 +1790,7 @@ count:long
 
 airportsDistanceLessThanInvalidPoint
 required_capability: st_distance
+required_capability: geo_validation
 
 FROM airports
 | EVAL distance = ST_DISTANCE(location, TO_GEOPOINT("POINT(-28.6359 153.5906)"))
@@ -1807,6 +1808,7 @@ count:l
 
 airportsDistanceLessThanInvalidPoint2
 required_capability: st_distance
+required_capability: geo_validation
 
 FROM airports
 | EVAL distance = ST_DISTANCE(TO_GEOPOINT("POINT(-28.6359 153.5906)"), location)
@@ -1824,6 +1826,7 @@ count:l
 
 airportsDistanceGreaterThanInvalidPoint
 required_capability: st_distance
+required_capability: geo_validation
 
 FROM airports
 | EVAL distance = ST_DISTANCE(location, TO_GEOPOINT("POINT(-28.6359 153.5906)"))
@@ -1841,6 +1844,7 @@ count:l
 
 airportsDistanceGreaterThanInvalidPoint2
 required_capability: st_distance
+required_capability: geo_validation
 
 FROM airports
 | EVAL distance = ST_DISTANCE(TO_GEOPOINT("POINT(-28.6359 153.5906)"), location)

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/action/EsqlCapabilities.java

@@ -55,6 +55,11 @@ public enum Cap {
          */
         SPATIAL_SHAPES,
 
+        /**
+         * Do validation check on geo_point and geo_shape fields. Done in #128259.
+         */
+        GEO_VALIDATION,
+
         /**
          * Support for spatial aggregation {@code ST_CENTROID}. Done in #104269.
          */