docs: public static List<ComparisonExpression> extractSupportedSpatialComparisons(Expression filterExpression)
      {
          return extractConjuncts(filterExpression).stream()
                  .filter(ComparisonExpression.class::isInstance)
                  .map(ComparisonExpression.class::cast)
                  .filter(SpatialJoinUtils::isSupportedSpatialComparison)
                  .collect(toImmutableList());
      }