OIiveirra commented on code in PR #69032:
URL: https://github.com/apache/doris/pull/69032#discussion_r4388314174
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be/src/exprs/function/geo/functions_geo.cpp:
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@@ -18,32 +18,1338 @@
#include "exprs/function/geo/functions_geo.h"
#include <glog/logging.h>
+#include <s2/mutable_s2shape_index.h>
+#include <s2/s2boolean_operation.h>
+#include <s2/s2builderutil_s2polyline_vector_layer.h>
+#include <s2/s2closest_edge_query.h>
+#include <s2/s2closest_point_query.h>
+#include <s2/s2contains_point_query.h>
+#include <s2/s2earth.h>
+#include <s2/s2lax_polygon_shape.h>
+#include <s2/s2loop.h>
+#include <s2/s2loop_measures.h>
#include <s2/s2point.h>
+#include <s2/s2point_index.h>
+#include <s2/s2point_vector_shape.h>
+#include <s2/s2pointutil.h>
+#include <s2/s2polygon.h>
+#include <s2/s2polyline.h>
+#include <s2/s2predicates.h>
+#include <s2/s2shape_measures.h>
#include <algorithm>
+#include <array>
+#include <bit>
#include <boost/iterator/iterator_facade.hpp>
+// cpp_int needs no quadmath wrappers. Boost's float128 numeric_limits
specialization
+// conflicts with libstdc++ 15's native specialization in the GCC performance
build.
+#if defined(__GNUC__) && !defined(__clang__) && __GNUC__ >= 15
+#define BOOST_CSTDFLOAT_NO_LIBQUADMATH_SUPPORT
+#endif
+#include <boost/multiprecision/cpp_int.hpp>
+#if defined(__GNUC__) && !defined(__clang__) && __GNUC__ >= 15
+#undef BOOST_CSTDFLOAT_NO_LIBQUADMATH_SUPPORT
+#endif
+#include <cmath>
+#include <cstdint>
+#include <limits>
+#include <map>
+#include <numbers>
+#include <optional>
+#include <set>
#include <utility>
+#include "common/cast_set.h"
#include "common/compiler_util.h"
#include "core/assert_cast.h"
#include "core/block/block.h"
#include "core/block/column_with_type_and_name.h"
#include "core/column/column.h"
#include "core/column/column_array.h"
#include "core/column/column_execute_util.h"
+#include "core/column/column_map.h"
#include "core/column/column_nullable.h"
+#include "core/column/column_struct.h"
+#include "core/column/column_varbinary.h"
+#include "core/custom_allocator.h"
#include "core/data_type/data_type_array.h"
+#include "core/data_type/data_type_map.h"
#include "core/data_type/data_type_nullable.h"
#include "core/data_type/data_type_number.h"
+#include "core/data_type/data_type_spatial.h"
#include "core/data_type/data_type_string.h"
+#include "core/data_type/data_type_struct.h"
+#include "core/data_type/data_type_varbinary.h"
#include "core/data_type/define_primitive_type.h"
#include "core/string_ref.h"
#include "exprs/function/geo/geo_common.h"
#include "exprs/function/geo/geo_types.h"
+#include "exprs/function/geo/wkb_parse.h"
#include "exprs/function/simple_function_factory.h"
+#include "exprs/function/string_hex_util.h"
namespace doris {
+static bool is_spatial_type(const DataTypePtr& type) {
+ const auto primitive_type = remove_nullable(type)->get_primitive_type();
+ return primitive_type == TYPE_GEOMETRY || primitive_type == TYPE_GEOGRAPHY;
+}
+
+static Status validate_geography_semantics(const DataTypePtr& type, const
char* function_name) {
+ const auto& nested_type = remove_nullable(type);
+ if (!is_spatial_type(nested_type)) {
+ return Status::OK();
+ }
+
+ const auto* spatial_type = dynamic_cast<const
DataTypeSpatial*>(nested_type.get());
+ DCHECK(spatial_type != nullptr);
+ if (spatial_type->get_primitive_type() == TYPE_GEOGRAPHY &&
+ spatial_type->crs() == "OGC:CRS84" && spatial_type->algorithm() ==
"spherical") {
+ return Status::OK();
+ }
+ return Status::NotSupported(
+ "Function {} requires GEOGRAPHY(OGC:CRS84, spherical) for spatial
inputs",
+ function_name);
+}
+
+static std::unique_ptr<GeoShape> decode_geo_shape(StringRef value, const
DataTypePtr& type) {
+ if (!is_spatial_type(type)) {
+ return GeoShape::from_encoded(value.data, value.size);
+ }
+
+ GeoParseStatus status;
+ auto shape = GeoShape::from_wkb_bytes(value.data, value.size, status);
+ return status == GeoParseStatus::GEO_PARSE_OK ? std::move(shape) : nullptr;
+}
+
+static bool any_geo_argument_is_null(const Block& block, const ColumnNumbers&
arguments,
+ size_t row) {
+ return std::ranges::any_of(arguments, [&](auto argument) {
+ return block.get_by_position(argument).column->is_null_at(row);
+ });
+}
+
+static std::unique_ptr<GeoShape> decode_geography_calculation_shape(StringRef
value);
+
+static Status decode_calculation_shape(StringRef value, const DataTypePtr&
type,
+ std::unique_ptr<GeoShape>* shape,
+ const char* function_name) {
+ *shape = is_spatial_type(type) ? decode_geography_calculation_shape(value)
+ : decode_geo_shape(value, type);
+ // Typed admission rejects unsupported and EMPTY calculation shapes before
distance
+ // helpers can expose infinity/max sentinels. Raw WKB storage/accessors
remain unchanged.
+ if (is_spatial_type(type) && *shape == nullptr) {
+ return Status::NotSupported("Function {} does not support this
Geography WKB shape",
+ function_name);
+ }
+ return Status::OK();
+}
+
+// Calculations use canonical positions; raw spatial accessors still return
the original WKB.
+static S2Point canonical_geography_point(const S2Point& point) {
+ const auto coordinate = S2LatLng(point);
+ const double latitude = coordinate.lat().radians();
+ // All longitudes at a pole and +/-180 at the date line denote the same
position.
+ if (std::abs(latitude) == M_PI_2) {
+ return {0, 0, latitude > 0 ? 1.0 : -1.0};
+ }
+ if (coordinate.lng().radians() == M_PI) {
+ // Flip only sin(longitude): rebuilding latitude can change its last
bit.
+ return {point.x(), -point.y(), point.z()};
+ }
+ return point;
+}
+
+// Error-free TwoSum preserves tiny differences from a half-turn (e.g. -1e-15
+ 180).
+static std::pair<double, double> geography_degree_sum(double a, double b) {
+ const double high = a + b;
+ const double offset = high - a;
+ return {high, (a - (high - offset)) + (b - offset)};
+}
+
+// Reduce the exact degree sum before converting to radians. In particular,
+// 180 + (-1e-300) must retain its small sine instead of becoming sin(pi).
+static std::pair<long double, long double> geography_degree_sincos(double a,
double b = 0,
+ bool half =
false) {
+ const auto [high, low] = geography_degree_sum(a, b);
+ int quadrant;
+ const long double reduced =
+ std::remquo(static_cast<long double>(high), half ? 180.0L : 90.0L,
&quadrant) +
+ static_cast<long double>(low);
+ const auto radians = reduced * (std::numbers::pi_v<long double> / 180) /
(half ? 2 : 1);
+ const auto sine = std::sin(radians);
+ const auto cosine = std::cos(radians);
+ switch ((quadrant % 4 + 4) % 4) {
+ case 0:
+ return {sine, cosine};
+ case 1:
+ return {cosine, -sine};
+ case 2:
+ return {-sine, -cosine};
+ default:
+ return {-cosine, sine};
+ }
+}
+
+// Unlike cross(ToPoint(a), ToPoint(b)), these product identities do not
subtract
+// rounded nearly opposite vectors. Longitude-midpoint coordinates give
+// (-sin(dLon/2)*sin(latA+latB), cos(dLon/2)*sin(latA-latB),
+// cos(latA)*cos(latB)*sin(dLon)) for the oriented normal.
+struct GeographyRawArc {
+ S2Point normal;
+ S2Point midpoint;
+
+ GeographyRawArc(const GeoCoordinate& a, const GeoCoordinate& b) {
+ // Wide exponents retain products of the smallest binary64 degree
residuals.
+ static_assert(std::numeric_limits<long double>::digits >= 64 &&
+ std::numeric_limits<long double>::min_exponent <= -4096);
+ const auto [sd, cd] = geography_degree_sincos(b.x, -a.x, true);
+ const auto [sm, cm] = geography_degree_sincos(a.x, b.x, true);
+ const auto rotate_unit = [&](long double x, long double y, long double
z) {
+ const auto norm = std::sqrt(x * x + y * y + z * z);
+ DCHECK_GT(norm, 0);
+ return S2Point(static_cast<double>((cm * x - sm * y) / norm),
+ static_cast<double>((sm * x + cm * y) / norm),
+ static_cast<double>(z / norm));
+ };
+ normal = rotate_unit(-sd * geography_degree_sincos(a.y, b.y).first,
+ cd * geography_degree_sincos(a.y, -b.y).first,
+ geography_degree_sincos(a.y).second *
+ geography_degree_sincos(b.y).second *
+ geography_degree_sincos(b.x, -a.x).first);
+ const auto [sl, cl] = geography_degree_sincos(a.y, b.y, true);
+ const auto [st, ct] = geography_degree_sincos(b.y, -a.y, true);
+ midpoint = rotate_unit(cd * cl * ct, -sd * sl * st, sl * ct);
+ }
+};
+
+// Raw identity must survive ToPoint rounding: 58 and 58.00000000000001 degrees
+// produce the same S2Point, but only one is an endpoint of the original edge.
+struct GeographyVertex {
+ GeoCoordinate coordinate;
+ S2Point point;
+
+ GeographyVertex() : GeographyVertex({.x = 0, .y = 0}) {}
+ explicit GeographyVertex(GeoCoordinate value) : coordinate(value) {
+ if (std::abs(coordinate.y) == 90) {
+ coordinate.x = 0;
+ point = {0, 0, coordinate.y > 0 ? 1.0 : -1.0};
+ } else {
+ if (coordinate.x == 180) {
+ coordinate.x = -180;
+ }
+ point = S2LatLng::FromDegrees(coordinate.y,
coordinate.x).ToPoint();
+ }
+ }
+ bool operator==(const GeographyVertex& other) const {
+ return coordinate.x == other.coordinate.x && coordinate.y ==
other.coordinate.y;
+ }
+ bool operator<(const GeographyVertex& other) const {
+ return std::pair {coordinate.x, coordinate.y} <
+ std::pair {other.coordinate.x, other.coordinate.y};
+ }
+};
+
+static bool geography_antipodal(const GeographyVertex& a, const
GeographyVertex& b) {
+ return a.coordinate.y == -b.coordinate.y &&
+ (std::abs(a.coordinate.y) == 90 ||
+ geography_degree_sum(std::max(a.coordinate.x, b.coordinate.x),
+ -std::min(a.coordinate.x, b.coordinate.x)) ==
+ std::pair {180.0, 0.0});
+}
+
+struct GeographyCoordinates {
+ GeoShapeType type = GeoShapeType::GEO_SHAPE_ANY;
+ DorisVector<DorisVector<GeographyVertex>> sequences;
+ GeoParseStatus status;
+
+ explicit GeographyCoordinates(StringRef wkb) {
+ GeoCoordinateListList raw;
+ status = WkbParse::calculation_coordinates(wkb.data, wkb.size, &raw,
&type);
+ if (status != GeoParseStatus::GEO_PARSE_OK) {
+ return;
+ }
+ for (const auto& sequence : raw.list) {
+ auto& vertices = sequences.emplace_back();
+ for (const auto& coordinate : sequence->list) {
+ vertices.emplace_back(coordinate);
+ }
+ }
+ }
+};
+
+static bool geography_stable_points(const DorisVector<GeographyVertex>&
sequence,
+ std::vector<S2Point>* points) {
+ for (size_t i = 0; i + 1 < sequence.size(); ++i) {
+ const auto& a = sequence[i];
+ const auto& b = sequence[i + 1];
+ // (0,0)->(180,0) has no unique arc and would normalize a zero raw
normal.
+ if (geography_antipodal(a, b)) {
+ return false;
+ }
+ points->push_back(a.point);
+ // Stabilize before S2 admission: rounded (30,58)->(-150,-58-e) can be
+ // exactly antipodal despite its unique raw arc passing through the
south pole.
+ if (a.point.DotProd(b.point) < 0) {
+ points->push_back(GeographyRawArc(a.coordinate,
b.coordinate).midpoint);
+ }
+ }
+ // A line's final vertex is real, including its closing edge; only rings
remove it.
+ points->push_back(sequence.back().point);
+ points->erase(std::ranges::unique(*points).begin(), points->end());
+ return true;
+}
+
+static std::unique_ptr<GeoShape> decode_geography_line(const
GeographyCoordinates& raw,
+ StringRef value) {
+ std::vector<S2Point> points;
+ if (!geography_stable_points(raw.sequences.front(), &points)) {
+ return nullptr;
+ }
+ if (points.size() < 2) {
+ // Canonical pole aliases such as (0,90),(90,90) collapse to one
calculation
+ // point. Preserve their prior admission; the old parser still rejects
a
+ // truly duplicate-only line such as (1,1),(1,1).
+ GeoParseStatus status;
+ return GeoShape::from_wkb_bytes(value.data, value.size, status);
+ }
+ auto polyline = std::make_unique<S2Polyline>(points, S2Debug::DISABLE);
+ if (!polyline->IsValid()) {
+ return nullptr;
+ }
+ return GeoLine::create_unique(std::move(polyline));
+}
+
+static std::unique_ptr<GeoShape> decode_geography_calculation_shape(StringRef
value) {
+ GeographyCoordinates raw(value);
+ if (raw.status != GeoParseStatus::GEO_PARSE_OK) {
+ return nullptr;
+ }
+ if (raw.type == GeoShapeType::GEO_SHAPE_POINT) {
+ GeoParseStatus status;
+ return GeoShape::from_wkb_bytes(value.data, value.size, status);
+ }
+ if (raw.type == GeoShapeType::GEO_SHAPE_LINE_STRING) {
+ return decode_geography_line(raw, value);
+ }
+ std::vector<std::unique_ptr<S2Loop>> loops;
+ std::vector<const S2Loop*> input_loops;
+ for (const auto& ring : raw.sequences) {
+ std::vector<S2Point> points;
+ // Validate holes against stable raw arcs, as with typed line
admission.
+ if (!geography_stable_points(ring, &points)) {
+ return nullptr;
+ }
+ // Validated WKB rings are closed; only polygon admission removes that
endpoint.
+ DCHECK(points.front() == points.back());
+ points.pop_back();
+ if (points.size() < 3) {
+ return nullptr;
+ }
+ auto loop = std::make_unique<S2Loop>(points, S2Debug::DISABLE);
+ if (!loop->IsValid()) {
+ return nullptr;
+ }
+ loop->Normalize();
+ if (!loops.empty() && !loops.front()->Contains(*loop)) {
+ return nullptr;
+ }
+ input_loops.push_back(loop.get());
+ loops.push_back(std::move(loop));
+ }
+ auto polygon = std::make_unique<S2Polygon>(std::move(loops),
S2Debug::DISABLE);
+ if (!polygon->IsValid()) {
+ return nullptr;
+ }
+ std::vector<int> depths;
+ for (const auto* loop : input_loops) {
+ depths.push_back(loop->depth());
+ }
+ return GeoPolygon::create_unique(std::move(polygon), std::move(depths));
+}
+
+#ifdef BE_TEST
+static thread_local size_t geography_exact_proofs = 0;
+static thread_local size_t geography_candidate_visits = 0;
+#endif
+
+// Test coplanarity of the original degree ordinates, not independently
rounded S2 vectors.
+// For example (45,-45), (90,0), (135,45) share an arc although ToPoint's
determinant is nonzero.
+static bool geography_common_great_circle(const GeoCoordinate& a, const
GeoCoordinate& b,
+ const GeoCoordinate& c) {
+#ifdef BE_TEST
+ ++geography_exact_proofs;
+#endif
+ using boost::multiprecision::cpp_int;
+ const std::array<double, 6> ordinates {a.y, a.x, b.y, b.x, c.y, c.x};
+ std::array<uint64_t, 6> significands;
+ std::array<int, 6> exponents;
+ int denominator_bits = 0;
+ for (size_t i = 0; i < ordinates.size(); ++i) {
+ const auto bits = std::bit_cast<uint64_t>(ordinates[i]);
+ const int biased = (bits >> 52) & 0x7ff;
+ uint64_t significand = bits & ((uint64_t {1} << 52) - 1);
+ int exponent = biased ? biased - 1075 : -1074;
+ if (biased) {
+ significand |= uint64_t {1} << 52;
+ }
+ if (significand != 0) {
+ const int zeros = std::countr_zero(significand);
+ significand >>= zeros;
+ exponent += zeros;
+ denominator_bits = std::max(denominator_bits, -exponent);
+ } else {
+ exponent = 0;
+ }
+ significands[i] = significand;
+ exponents[i] = exponent;
+ }
+ std::array<cpp_int, 6> angles;
+ for (size_t i = 0; i < angles.size(); ++i) {
+ angles[i] = cpp_int(significands[i]) << (denominator_bits +
exponents[i]);
+ if (std::signbit(ordinates[i])) {
+ angles[i] = -angles[i];
+ }
+ }
+ // Binary-rational degrees have denominator 2^q. Exp(i*angle) is a power
of a
+ // root of unity of order 360*2^q. Its minimal polynomial is Phi_90(t),
with
+ // t = z^(2^(q+2)), and Phi_90(t) = t^24+t^21-t^15-t^12-t^9+t^3+1.
+ // Expand cos(lat_i)cos(lat_j)sin(lat_k)sin(lon_j-lon_i), cyclically, into
+ // 48 integer-coefficient powers. Equal residues modulo 2^(q+2) share one
+ // polynomial; reduction by Phi_90 proves zero exactly, including tiny
nonzero controls.
+ const int shift = denominator_bits + 2;
+ const cpp_int basis = cpp_int(1) << shift;
+ const cpp_int period = 90 * basis;
+ std::map<cpp_int, std::array<int, 90>> polynomials;
+ for (int i = 0; i < 3; ++i) {
+ const int j = (i + 1) % 3;
+ const int k = (i + 2) % 3;
+ for (int mask = 0; mask < 16; ++mask) {
+ std::array<int, 4> signs;
+ for (int bit = 0; bit < 4; ++bit) {
+ signs[bit] = (mask & (1 << bit)) ? 1 : -1;
+ }
+ cpp_int power = signs[0] * angles[2 * i] + signs[1] * angles[2 *
j] +
+ signs[2] * angles[2 * k] +
+ signs[3] * (angles[2 * j + 1] - angles[2 * i + 1]);
+ power %= period;
+ if (power < 0) {
+ power += period;
+ }
+ const int quotient = (power >> shift).convert_to<int>();
+ const cpp_int residue = power - (cpp_int(quotient) << shift);
+ polynomials[residue][quotient] += signs[2] * signs[3];
+ }
+ }
+ for (auto& [residue, coefficients] : polynomials) {
+ for (int i = 89; i >= 24; --i) {
+ const int coefficient = coefficients[i];
+ coefficients[i] = 0;
+ coefficients[i - 3] -= coefficient;
+ coefficients[i - 9] += coefficient;
+ coefficients[i - 12] += coefficient;
+ coefficients[i - 15] += coefficient;
+ coefficients[i - 21] -= coefficient;
+ coefficients[i - 24] -= coefficient;
+ }
+ if (std::ranges::any_of(coefficients, [](int value) { return value !=
0; })) {
+ return false;
+ }
+ }
+ return true;
+}
+
+// Keep each atomic segment in its own shape. Pinned S2 ProcessEdge1 uses a
chain's
+// global start as a local offset in one endpoint path, so multiple chains per
line
+// shape are unsafe. Closed AA shapes restore internal vertices in the OPEN
model.
+class GeographyLineShape final : public S2Shape {
+public:
+ GeographyLineShape(const S2Point& a, const S2Point& b) {
_edge.emplace_back(a, b); }
+ int num_edges() const override { return 1; }
+ Edge edge(int i) const override {
+ DCHECK_EQ(i, 0);
+ return _edge.front();
+ }
+ int dimension() const override { return 1; }
+ ReferencePoint GetReferencePoint() const override { return
ReferencePoint::Contained(false); }
+ int num_chains() const override { return 1; }
+ Chain chain(int i) const override {
+ DCHECK_EQ(i, 0);
+ return {0, 1};
+ }
+ Edge chain_edge(int i, int j) const override {
+ DCHECK_EQ(i, 0);
+ return edge(j);
+ }
+ ChainPosition chain_position(int i) const override {
+ DCHECK_EQ(i, 0);
+ return {0, 0};
+ }
+
+private:
+ // Owning storage is checked/accounted by the current query's allocator.
+ DorisVector<Edge> _edge;
+};
+
+class GeographyEdgeNodes {
+public:
+ using LineEdge = std::pair<GeographyVertex, GeographyVertex>;
+ using LineEdges = std::set<LineEdge, std::less<>,
CustomStdAllocator<LineEdge>>;
+
+ GeographyCoordinates left;
+ GeographyCoordinates right;
+
+ GeographyEdgeNodes(StringRef left_wkb, StringRef right_wkb) :
left(left_wkb), right(right_wkb) {
+ DCHECK_EQ(left.status, GeoParseStatus::GEO_PARSE_OK);
+ DCHECK_EQ(right.status, GeoParseStatus::GEO_PARSE_OK);
+ DorisMap<double, DorisVector<GeographyVertex>> longitude_vertices;
+ std::set<GeographyVertex, std::less<>,
CustomStdAllocator<GeographyVertex>> coordinates;
+ for (const auto* shape : {&left, &right}) {
+ for (const auto& sequence : shape->sequences) {
+ for (const auto& point : sequence) {
+ if (!coordinates.insert(point).second) {
+ continue;
+ }
+ const auto& coordinate = point.coordinate;
+ longitude_vertices[coordinate.x].push_back(point);
+ if (std::abs(coordinate.y) != 90) {
+ _meridians[meridian(coordinate.x)][coordinate.x <
0].push_back(
+ {coordinate.y, point});
+ }
+ }
+ }
+ }
+ // Keep dense longitude groups separately so a circle can skip its
known
+ // endpoint longitudes before enumerating nearby points. At sqrt(N)
points
+ // per group there are at most sqrt(N) extra indexes, even with
unrelated
+ // vertices padding a near-antipodal spoke input.
+ const auto dense_size =
+ std::max(size_t {2},
static_cast<size_t>(std::ceil(std::sqrt(coordinates.size()))));
+ for (const auto& [longitude, points] : longitude_vertices) {
+ auto& index =
+ points.size() >= dense_size ? _dense_longitudes[longitude]
: _vertex_index;
+ for (const auto& point : points) {
+ index.Add(point.point, point);
+ }
+ }
+ for (auto& entry : _meridians) {
+ for (auto& side : entry.second) {
+ side.push_back({-90, GeographyVertex({.x = 0, .y = -90})});
+ side.push_back({90, GeographyVertex({.x = 0, .y = 90})});
+ std::ranges::sort(side, {}, &Vertex::latitude);
+ }
+ }
+ }
+
+ bool contains_point(const GeographyVertex& start, const GeographyVertex&
end,
+ const GeographyVertex& point) const {
+ // Preserve exact endpoints, including date-line and pole aliases.
+ if (point == start || point == end) {
+ return true;
+ }
+ if (start == end) {
+ return false;
+ }
+ const auto& a = start.coordinate;
+ const auto& b = end.coordinate;
+ const auto& c = point.coordinate;
+ const auto key = meridian(std::abs(a.y) == 90 ? b.x : a.x);
+ bool member = false;
+ if (meridian_edge(start, end, [&](const auto& vertices, double from,
double to) {
+ // Opposite-longitude edges can pass through a pole; the pole
belongs
+ // to both legs, whereas other positions must be on the
selected side.
+ const bool same_side =
+ std::abs(c.y) == 90 ||
+ (meridian(c.x) == key && &_meridians.at(key)[c.x < 0]
== &vertices);
+ member |= same_side && c.y >= std::min(from, to) && c.y <=
std::max(from, to);
+ })) {
+ return member;
+ }
+ const bool wraps = geography_degree_sum(std::max(a.x, b.x),
-std::min(a.x, b.x)) >
+ std::pair {180.0, 0.0};
+ const bool within = wraps ? (c.x < std::min(a.x, b.x) || c.x >
std::max(a.x, b.x))
+ : (c.x > std::min(a.x, b.x) && c.x <
std::max(a.x, b.x));
+ // Near-antipodal endpoint conversion can rotate the S2 plane
substantially.
+ // POINT(45 0) is on (-44.99999999999997 -45,134.99999999999997 45);
+ // decide from raw degrees rather than accepting a larger distance
tolerance.
+ return within && geography_common_great_circle(a, b, c);
+ }
+
+ void append_edge(const GeographyVertex& start, const GeographyVertex& end,
+ DorisVector<GeographyVertex>* output) const {
+ output->push_back(start);
+ if (start == end) {
+ return;
+ }
+ if (meridian_edge(start, end, [&](const auto& vertices, double from,
double to) {
+ append_range(vertices, from, to, output);
+ if (std::abs(to) == 90) {
+ const GeographyVertex pole({.x = 0, .y = to});
+ if (end != pole) {
+ output->push_back(pole);
+ }
+ }
+ })) {
+ return;
+ }
+ const auto& a = start.coordinate;
+ const auto& b = end.coordinate;
+ const bool wraps = geography_degree_sum(std::max(a.x, b.x),
-std::min(a.x, b.x)) >
+ std::pair {180.0, 0.0};
+ const bool east = (a.x < b.x) != wraps;
+ // A near-antipodal rounded edge can miss true raw-coordinate nodes.
Two
+ // stable half-arcs recall those nodes without a hemispherical search.
+ const auto midpoint = GeographyRawArc(a, b).midpoint;
+ DorisVector<GeographyVertex> on_edge;
+ for (const auto& endpoint : {start, end}) {
+ visit_edge_candidates(
+ endpoint.point, midpoint, [](double) { return false; },
+ [&](const GeographyVertex& point) {
+ const auto& c = point.coordinate;
+ // Longitude is strictly monotone along every
non-meridian minor arc.
+ // Check the original interval (including date-line
wrap), not a distance
+ // tolerance that could append a point just beyond an
endpoint.
+ const bool within =
+ wraps ? (c.x < std::min(a.x, b.x) || c.x >
std::max(a.x, b.x))
+ : (c.x > std::min(a.x, b.x) && c.x <
std::max(a.x, b.x));
+ if (within && geography_common_great_circle(a, b, c)) {
+ on_edge.push_back(point);
+ }
+ });
+ }
+ std::ranges::sort(on_edge, [&](const GeographyVertex& x, const
GeographyVertex& y) {
+ const double x_lon = x.coordinate.x;
+ const double y_lon = y.coordinate.x;
+ if ((x_lon < a.x) != (y_lon < a.x)) {
+ return east ? x_lon >= a.x : x_lon < a.x;
+ }
+ return east ? x_lon < y_lon : x_lon > y_lon;
+ });
+ on_edge.erase(std::ranges::unique(on_edge).begin(), on_edge.end());
+ output->insert(output->end(), on_edge.begin(), on_edge.end());
+ }
+
+ // Calculation-only points never enter the raw-degree identity/noding map.
+ std::optional<S2Point> arc_midpoint(const GeographyVertex& a, const
GeographyVertex& b) const {
+ if (a.point.DotProd(b.point) < 0) {
+ return GeographyRawArc(a.coordinate, b.coordinate).midpoint;
+ }
+ return std::nullopt;
+ }
+
+ void add_line(const GeographyCoordinates& shape, MutableS2ShapeIndex*
index,
+ LineEdges* raw_line_edges = nullptr) const {
+ using Interval = std::pair<double, double>;
+ DorisMap<const DorisVector<Vertex>*, DorisVector<Interval>> intervals;
+ LineEdges raw_edges;
+ const auto& line = shape.sequences.front();
+ for (size_t i = 0; i + 1 < line.size(); ++i) {
+ const auto& a = line[i];
+ const auto& b = line[i + 1];
+ if (a == b) {
+ continue;
+ }
+ if (!meridian_edge(a, b, [&](const auto& vertices, double from,
double to) {
+ intervals[&vertices].emplace_back(std::min(from, to),
std::max(from, to));
+ })) {
+ raw_edges.emplace(std::min(a, b), std::max(a, b));
+ }
+ }
+ LineEdges edges;
+ auto add_edge = [&](const GeographyVertex& a, const GeographyVertex&
b) {
+ // Equality must distinguish (0,58)->(0,59) from
(0,58+ulp)->(0,59),
+ // even when conversion collapses the raw 58->58+ulp subedge to
one S2Point.
+ if (raw_line_edges != nullptr) {
+ raw_line_edges->emplace(std::min(a, b), std::max(a, b));
+ }
+ // Rounded adjacent vertices can share one S2Point while remaining
distinct raw
+ // WKB vertices, for example 58 and 58.00000000000001 degrees. The
raw edge is
+ // retained for identity, but its zero-length S2 representation
must not become
+ // an OPEN/AA boundary marker at the original line endpoint.
+ if (a.point == b.point) {
+ return;
+ }
+ edges.emplace(std::min(a, b), std::max(a, b));
+ };
+ // Merge latitude coverage before splitting: N repeated or overlapping
edges
+ // and M collinear vertices produce O(N+M) scratch, never an N*M
vertex walk.
+ for (auto& [vertices, ranges] : intervals) {
+ std::ranges::sort(ranges);
+ auto emit = [&](double from, double to) {
+ auto begin = std::ranges::lower_bound(*vertices, from, {},
&Vertex::latitude);
+ const auto end = std::ranges::upper_bound(*vertices, to, {},
&Vertex::latitude);
+ for (auto next = begin + 1; next != end; ++begin, ++next) {
+ add_edge(begin->point, next->point);
+ }
+ };
+ double from = ranges.front().first;
+ double to = ranges.front().second;
+ for (const auto& range : ranges) {
+ if (range.first > to) {
+ emit(from, to);
+ from = range.first;
+ }
+ to = std::max(to, range.second);
+ }
+ emit(from, to);
+ }
+ add_circle_edges(raw_edges, add_edge);
+ add_line_shapes(line, edges, index);
+ }
+
+private:
+ void add_line_shapes(const DorisVector<GeographyVertex>& line, const
LineEdges& edges,
+ MutableS2ShapeIndex* index) const {
+ const auto& first = line.front();
+ const auto& last = line.back();
+ auto add = [&](const S2Point& a, const S2Point& b) {
+ index->Add(std::make_unique<GeographyLineShape>(a, b));
+ };
+ if (edges.empty()) {
+ // A raw pole-alias line may collapse to one canonical calculation
position.
+ add(first.point, first.point);
+ }
+ std::set<S2Point, std::less<>, CustomStdAllocator<S2Point>>
interior_vertices;
+ for (const auto& [a, b] : edges) {
+ const auto midpoint = arc_midpoint(a, b);
+ if (midpoint) {
+ add(a.point, *midpoint);
+ add(*midpoint, b.point);
+ // The synthetic split is interior, not a new OPEN line
boundary:
+ // a crossing at this point must not become ST_Touches=true.
+ interior_vertices.insert(*midpoint);
+ } else {
+ add(a.point, b.point);
+ }
+ interior_vertices.insert(a.point);
+ interior_vertices.insert(b.point);
+ }
+ for (const auto& point : interior_vertices) {
+ if (first == last || (point != first.point && point !=
last.point)) {
+ add(point, point);
+ }
+ }
+ }
+
+ struct Vertex {
+ double latitude;
+ GeographyVertex point;
+ };
+ struct Circle {
+ GeographyVertex a;
+ GeographyVertex b;
+ S2Point normal;
+ DorisVector<std::pair<double, double>> ranges;
+ DorisMap<double, GeographyVertex> vertices;
+ };
+
+ template <typename Edges, typename AddEdge>
+ void add_circle_edges(const Edges& edges, AddEdge&& add_edge) const {
+ DorisVector<Circle> circles;
+ S2PointIndex<size_t> normal_index;
+ const double rounding = 64 * std::numeric_limits<double>::epsilon();
+ for (const auto& [a, b] : edges) {
+ const auto normal = GeographyRawArc(a.coordinate,
b.coordinate).normal;
+ size_t group = circles.size();
+ S2ClosestPointQuery<size_t> query(&normal_index);
+ // Raw trigonometric products avoid the epsilon/sin(length) error
+ // amplification. Normals only recall candidates; exact proof
decides.
+
query.mutable_options()->set_conservative_max_distance(S1Angle::Radians(rounding));
+ S2ClosestPointQuery<size_t>::PointTarget target(normal);
+ for (const auto& candidate : query.FindClosestPoints(&target)) {
+#ifdef BE_TEST
+ ++geography_candidate_visits;
+#endif
+ const auto& circle = circles[candidate.data()];
+ const auto& x = circle.a.coordinate;
+ const auto& y = circle.b.coordinate;
+ const auto on_circle = [&](const GeographyVertex& point) {
+ return point == circle.a || point == circle.b ||
+ geography_common_great_circle(x, y,
point.coordinate);
+ };
+ if (on_circle(a) && on_circle(b)) {
+ group = candidate.data();
+ break;
+ }
+ }
+ if (group == circles.size()) {
+ normal_index.Add(normal, group);
+ normal_index.Add(-normal, group);
+ circles.push_back({a, b, normal, {}, {}});
+ }
+ auto& circle = circles[group];
+ const double lo = std::min(a.coordinate.x, b.coordinate.x);
+ const double hi = std::max(a.coordinate.x, b.coordinate.x);
+ // Longitude cut points are interval sentinels, not fabricated
spatial
+ // vertices. For 170->-170 the real wrap edge is emitted below.
+ if (geography_degree_sum(hi, -lo) > std::pair {180.0, 0.0}) {
+ circle.ranges.emplace_back(-180, lo);
+ circle.ranges.emplace_back(hi, 180);
+ } else {
+ circle.ranges.emplace_back(lo, hi);
+ }
+ // Keep every raw endpoint, especially original open-line endpoints
+ // inside a larger merged interval: OPEN must still exclude those
points.
+ circle.vertices.emplace(a.coordinate.x, a);
+ circle.vertices.emplace(b.coordinate.x, b);
+ }
+ for (auto& circle : circles) {
+ collect_circle_vertices(circle);
+ emit_circle_edges(circle, add_edge);
+ }
+ }
+
+ template <typename SkipLongitude, typename Visit>
+ void visit_edge_candidates(const S2Point& a, const S2Point& b,
SkipLongitude&& skip_longitude,
+ Visit&& visit) const {
+ const auto query_index = [&](const S2PointIndex<GeographyVertex>&
index) {
+ S2ClosestPointQuery<GeographyVertex> query(&index);
+ query.mutable_options()->set_conservative_max_distance(
+ S1Angle::Radians(64 *
std::numeric_limits<double>::epsilon()));
+ S2ClosestPointQuery<GeographyVertex>::EdgeTarget target(a, b);
+ for (const auto& candidate : query.FindClosestPoints(&target)) {
+#ifdef BE_TEST
+ ++geography_candidate_visits;
+#endif
+ visit(candidate.data());
+ }
+ };
+ query_index(_vertex_index);
+ for (const auto& [longitude, index] : _dense_longitudes) {
+#ifdef BE_TEST
+ ++geography_candidate_visits;
+#endif
+ // A non-meridian circle has only one nonpolar point at each
longitude.
+ // Dense endpoint groups must be skipped before the S2 query,
including
+ // when unrelated vertices make them a minority of the complete
input.
+ if (!skip_longitude(longitude)) {
+ query_index(index);
+ }
+ }
+ }
+
+ void collect_circle_vertices(Circle& circle) const {
+ // Query a whole circle once, using four non-antipodal quarter arcs.
+ const auto u = S2::Ortho(circle.normal);
+ const auto v = circle.normal.CrossProd(u).Normalize();
+ const std::array<S2Point, 4> quarter {u, v, -u, -v};
+ std::set<GeographyVertex, std::less<>,
CustomStdAllocator<GeographyVertex>> seen;
+ for (size_t i = 0; i < quarter.size(); ++i) {
+ visit_edge_candidates(
+ quarter[i], quarter[(i + 1) % 4],
+ [&](double longitude) { return
circle.vertices.contains(longitude); },
+ [&](const GeographyVertex& point) {
+ const auto& coordinate = point.coordinate;
+ if (seen.insert(point).second &&
!circle.vertices.contains(coordinate.x) &&
+ geography_common_great_circle(circle.a.coordinate,
circle.b.coordinate,
+ coordinate)) {
+ circle.vertices.emplace(coordinate.x, point);
+ }
+ });
+ }
+ }
+
+ template <typename AddEdge>
+ static void emit_circle_edges(Circle& circle, AddEdge&& add_edge) {
+ std::ranges::sort(circle.ranges);
+ DorisVector<std::pair<double, double>> merged;
+ for (const auto& range : circle.ranges) {
+ if (merged.empty() || range.first > merged.back().second) {
+ merged.push_back(range);
+ } else {
+ merged.back().second = std::max(merged.back().second,
range.second);
+ }
+ }
+ for (const auto& [lo, hi] : merged) {
+ const auto begin = circle.vertices.lower_bound(lo);
+ const auto end = circle.vertices.upper_bound(hi);
+ // Each original interval retains an endpoint, including either
side
+ // of the date-line cut. Merging and node collection never remove
it.
+ DCHECK(begin != end);
+ auto previous = begin;
+ for (auto next = std::next(begin); next != end; ++previous,
++next) {
+ add_edge(previous->second, next->second);
+ }
+ }
+ if (merged.front().first == -180 && merged.back().second == 180) {
+ add_edge(circle.vertices.rbegin()->second,
circle.vertices.begin()->second);
+ }
+ }
+
+ static std::pair<double, double> meridian(double longitude) {
+ return longitude >= 0 ? std::pair {longitude, 0.0} :
geography_degree_sum(longitude, 180);
+ }
+ template <typename Append>
+ bool meridian_edge(const GeographyVertex& start, const GeographyVertex&
end,
+ Append&& append) const {
+ const auto& a = start.coordinate;
+ const auto& b = end.coordinate;
+ const bool a_pole = std::abs(a.y) == 90;
+ const bool b_pole = std::abs(b.y) == 90;
+ const auto key = meridian(a_pole ? b.x : a.x);
+ if (!a_pole && !b_pole && key != meridian(b.x)) {
+ return false;
+ }
+ // Exact opposite endpoints (e.g. (0,10),(180,-10)) have no unique
minor arc.
+ if (a.y == -b.y && ((a_pole && b_pole) || (a.x < 0) != (b.x < 0))) {
+ throw Exception(ErrorCode::NOT_IMPLEMENTED_ERROR,
+ "Geography calculations do not support antipodal
edges");
+ }
+ const bool a_side = (a_pole ? b.x : a.x) < 0;
+ const bool b_side = (b_pole ? a.x : b.x) < 0;
+ const auto& group = _meridians.at(key);
+ if (a_side == b_side) {
+ append(group[a_side], a.y, b.y);
+ } else {
+ // (10,80)->(-170,80) goes via the north pole; retain raw latitude
on each side.
+ const double latitude = a.y > -b.y ? 90 : -90;
+ append(group[a_side], a.y, latitude);
+ append(group[b_side], latitude, b.y);
+ }
+ return true;
+ }
+ static void append_range(const DorisVector<Vertex>& vertices, double from,
double to,
+ DorisVector<GeographyVertex>* output) {
+ const auto first =
+ std::ranges::upper_bound(vertices, std::min(from, to), {},
&Vertex::latitude);
+ const auto last =
+ std::ranges::lower_bound(vertices, std::max(from, to), {},
&Vertex::latitude);
+ if (from < to) {
+ for (auto it = first; it != last; ++it) {
+ output->push_back(it->point);
+ }
+ } else {
+ auto current = last;
+ while (current != first) {
+ output->push_back((--current)->point);
+ }
+ }
+ }
+ DorisMap<double, S2PointIndex<GeographyVertex>> _dense_longitudes;
+ S2PointIndex<GeographyVertex> _vertex_index;
+ DorisMap<std::pair<double, double>, std::array<DorisVector<Vertex>, 2>>
_meridians;
+};
+
+static void geography_shape_index(const GeoShape& shape, const
GeographyCoordinates& raw,
+ const GeographyEdgeNodes& nodes,
MutableS2ShapeIndex* index) {
+ switch (shape.type()) {
+ case GeoShapeType::GEO_SHAPE_POINT:
+ index->Add(std::make_unique<S2PointVectorShape>(
+ std::vector<S2Point> {raw.sequences.front().front().point}));
+ break;
+ case GeoShapeType::GEO_SHAPE_LINE_STRING:
+ nodes.add_line(raw, index);
+ break;
+ case GeoShapeType::GEO_SHAPE_POLYGON: {
+ const auto& depths = assert_cast<const
GeoPolygon&>(shape).calculation_ring_depths();
+ DCHECK_EQ(depths.size(), raw.sequences.size());
+ std::vector<S2LaxPolygonShape::Loop> loops;
+ for (size_t i = 0; i < raw.sequences.size(); ++i) {
+ auto& vertices = loops.emplace_back();
+ const auto& ring = raw.sequences[i];
+ DorisVector<GeographyVertex> edge;
+ for (size_t j = 0; j + 1 < ring.size(); ++j) {
+ edge.clear();
+ nodes.append_edge(ring[j], ring[j + 1], &edge);
+ edge.push_back(ring[j + 1]);
+ for (size_t k = 0; k + 1 < edge.size(); ++k) {
+ vertices.push_back(edge[k].point);
+ // Use the same stable long arcs for interiors and
distances.
+ // The raw (-45+e,-45)->(135-e,45) edge otherwise changes
sides
+ // around POINT(45 0.000001) when its midpoint is inserted.
+ if (const auto midpoint = nodes.arc_midpoint(edge[k],
edge[k + 1])) {
+ vertices.push_back(*midpoint);
+ }
+ }
+ }
+ // A thin near-antipodal ring may have been reversed by
normalization
+ // of the rounded edge. Restore the smaller-region shell
orientation
+ // after stabilization while preserving the admitted hole depths.
+ // Span normalization also retains canonical pole-alias
degeneracies.
+ if (S2::IsNormalized(vertices) == (depths[i] % 2 != 0)) {
+ std::ranges::reverse(vertices);
+ }
+ }
+ index->Add(std::make_unique<S2LaxPolygonShape>(loops));
+ break;
+ }
+ default:
+ throw Exception(ErrorCode::INTERNAL_ERROR, "Unexpected Geography
calculation shape");
+ }
+}
+
+#ifdef BE_TEST
+size_t geography_calculation_edges_for_test(const std::string& left, const
std::string& right,
+ size_t* exact_proofs, size_t*
candidate_visits) {
+ geography_exact_proofs = 0;
+ geography_candidate_visits = 0;
+ const auto a = decode_geography_calculation_shape(StringRef(left));
+ const auto b = decode_geography_calculation_shape(StringRef(right));
+ const GeographyEdgeNodes nodes {StringRef(left), StringRef(right)};
+ MutableS2ShapeIndex a_index;
+ MutableS2ShapeIndex b_index;
+ geography_shape_index(*a, nodes.left, nodes, &a_index);
+ geography_shape_index(*b, nodes.right, nodes, &b_index);
+ size_t edges = 0;
+ for (const auto* shape : a_index) {
+ edges += shape->num_edges();
+ }
+ for (const auto* shape : b_index) {
+ edges += shape->num_edges();
+ }
+ if (exact_proofs != nullptr) {
+ *exact_proofs = geography_exact_proofs;
+ }
+ if (candidate_visits != nullptr) {
+ *candidate_visits = geography_candidate_visits;
+ }
+ return edges;
+}
+#endif
+
+static S1ChordAngle geography_conversion_error() {
+ // S2LatLng::ToPoint and degrees-to-radians rounding can separate
positions on
+ // the same meridian. This is about 1e-8 metres, not a user snap radius.
+ return S1ChordAngle(S1Angle::Radians(8 *
std::numeric_limits<double>::epsilon()));
+}
+
+static bool geography_point_relation(std::string_view name, const GeoShape&
lhs,
+ const GeoShape& rhs, const
GeographyEdgeNodes& nodes) {
+ const auto& other = lhs.type() == GeoShapeType::GEO_SHAPE_POINT ? rhs :
lhs;
+ const auto& point_raw = lhs.type() == GeoShapeType::GEO_SHAPE_POINT ?
nodes.left : nodes.right;
+ const auto& other_raw = lhs.type() == GeoShapeType::GEO_SHAPE_POINT ?
nodes.right : nodes.left;
+ const auto& point = point_raw.sequences.front().front();
+ bool interior = false;
+ bool boundary = false;
+ if (other.type() == GeoShapeType::GEO_SHAPE_POINT) {
+ interior = point == other_raw.sequences.front().front();
+ } else if (other.type() == GeoShapeType::GEO_SHAPE_LINE_STRING) {
+ const auto& line = other_raw.sequences.front();
+ bool member = false;
+ for (size_t i = 0; i + 1 < line.size(); ++i) {
+ member = member || nodes.contains_point(line[i], line[i + 1],
point);
+ }
+ const auto& first = line.front();
+ const auto& last = line.back();
+ boundary = first != last && (point == first || point == last);
+ interior = member && !boundary;
+ } else {
+ DCHECK(other.type() == GeoShapeType::GEO_SHAPE_POLYGON);
+ for (const auto& ring : other_raw.sequences) {
+ for (size_t j = 0; j + 1 < ring.size(); ++j) {
+ boundary = boundary || nodes.contains_point(ring[j], ring[j +
1], point);
+ }
+ }
+ if (!boundary) {
+ MutableS2ShapeIndex index;
+ geography_shape_index(other, other_raw, nodes, &index);
+ interior = MakeS2ContainsPointQuery(&index).Contains(point.point);
+ }
+ }
+ if (name == "st_intersects") {
+ return interior || boundary;
+ }
+ if (name == "st_disjoint") {
+ return !interior && !boundary;
+ }
+ if (name == "st_touches") {
+ return boundary;
+ }
+ return interior;
+}
+
+static Status geography_relation(std::string_view name, const GeoShape& lhs,
const GeoShape& rhs,
+ StringRef left_wkb, StringRef right_wkb,
bool* result) {
+ const auto& container = name == "st_within" ? rhs : lhs;
+ const auto& value = name == "st_within" ? lhs : rhs;
+ const bool containment = name == "st_contains" || name == "st_within";
+ // A point cannot contain a line or polygon; this is a defined false
result.
+ if (containment && container.type() == GeoShapeType::GEO_SHAPE_POINT &&
+ value.type() != GeoShapeType::GEO_SHAPE_POINT) {
+ *result = false;
+ return Status::OK();
+ }
+ if (name == "st_equals" && lhs.type() != rhs.type()) {
+ *result = false;
+ return Status::OK();
+ }
+ if (name == "st_overlaps" &&
+ (lhs.type() != rhs.type() || lhs.type() ==
GeoShapeType::GEO_SHAPE_POINT)) {
+ *result = false;
+ return Status::OK();
+ }
+ if (lhs.type() == GeoShapeType::GEO_SHAPE_POINT ||
+ rhs.type() == GeoShapeType::GEO_SHAPE_POINT) {
+ // Point equality has the same canonical position test as point
containment.
+ const GeographyEdgeNodes nodes(left_wkb, right_wkb);
+ *result = geography_point_relation(name, lhs, rhs, nodes);
+ return Status::OK();
+ }
+ MutableS2ShapeIndex left;
+ MutableS2ShapeIndex right;
+ const GeographyEdgeNodes nodes(left_wkb, right_wkb);
+ GeographyEdgeNodes::LineEdges left_edges;
+ GeographyEdgeNodes::LineEdges right_edges;
+ // CLOSED S2 equality alone loses unequal raw extents at colliding
endpoints.
+ // Reuse the existing shared noding once per line, preserving its
canonical raw edges.
+ if (name == "st_equals" && lhs.type() ==
GeoShapeType::GEO_SHAPE_LINE_STRING) {
+ nodes.add_line(nodes.left, &left, &left_edges);
+ nodes.add_line(nodes.right, &right, &right_edges);
+ } else {
+ geography_shape_index(container, name == "st_within" ? nodes.right :
nodes.left, nodes,
+ &left);
+ geography_shape_index(value, name == "st_within" ? nodes.left :
nodes.right, nodes, &right);
+ }
+ S2BooleanOperation::Options options;
+ options.set_polygon_model(S2BooleanOperation::PolygonModel::CLOSED);
+ options.set_polyline_model(S2BooleanOperation::PolylineModel::CLOSED);
+ options.set_polyline_loops_have_boundaries(false);
+ if (name == "st_equals") {
+ *result = left_edges == right_edges &&
S2BooleanOperation::Equals(left, right, options);
+ return Status::OK();
+ }
+ if (containment && container.type() == GeoShapeType::GEO_SHAPE_LINE_STRING
&&
+ value.type() == GeoShapeType::GEO_SHAPE_POLYGON) {
+ *result = false;
+ return Status::OK();
+ }
+ if (containment && !S2BooleanOperation::Contains(left, right, options)) {
Review Comment:
Fixed in fcd19869858. Contains/Within and Overlaps now use the canonical raw
edge coverage from shared noding, including positive overlaps that collapse to
one S2 point. Added both-order, equivalent-subdivision and rounded-endpoint
regressions.
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