#ifndef ITEM_GEOFUNC_INCLUDED #define ITEM_GEOFUNC_INCLUDED /* Copyright (c) 2000, 2016 Oracle and/or its affiliates. Copyright (C) 2011, 2021, MariaDB This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */ /* This file defines all spatial functions */ #ifdef HAVE_SPATIAL #ifdef USE_PRAGMA_INTERFACE #pragma interface /* gcc class implementation */ #endif #include "sql_type_geom.h" #include "item.h" #include "gstream.h" #include "spatial.h" #include "gcalc_slicescan.h" #include "gcalc_tools.h" class Item_geometry_func: public Item_str_func { public: Item_geometry_func(THD *thd): Item_str_func(thd) {} Item_geometry_func(THD *thd, Item *a): Item_str_func(thd, a) {} Item_geometry_func(THD *thd, Item *a, Item *b): Item_str_func(thd, a, b) {} Item_geometry_func(THD *thd, Item *a, Item *b, Item *c): Item_str_func(thd, a, b, c) {} Item_geometry_func(THD *thd, List &list): Item_str_func(thd, list) {} bool fix_length_and_dec(); const Type_handler *type_handler() const { return &type_handler_geometry; } }; /* Functions returning REAL measurements of a single GEOMETRY argument */ class Item_real_func_args_geometry: public Item_real_func { protected: String value; bool check_arguments() const { DBUG_ASSERT(arg_count == 1); return Type_handler_geometry::check_type_geom_or_binary(func_name(), args[0]); } public: Item_real_func_args_geometry(THD *thd, Item *a) :Item_real_func(thd, a) {} }; /* Functions returning INT measurements of a single GEOMETRY argument */ class Item_long_func_args_geometry: public Item_long_func { bool check_arguments() const { DBUG_ASSERT(arg_count == 1); return Type_handler_geometry::check_type_geom_or_binary(func_name(), args[0]); } protected: String value; public: Item_long_func_args_geometry(THD *thd, Item *a) :Item_long_func(thd, a) {} }; /* Functions returning BOOL measurements of a single GEOMETRY argument */ class Item_bool_func_args_geometry: public Item_bool_func { protected: String value; bool check_arguments() const { DBUG_ASSERT(arg_count == 1); return Type_handler_geometry::check_type_geom_or_binary(func_name(), args[0]); } public: Item_bool_func_args_geometry(THD *thd, Item *a) :Item_bool_func(thd, a) {} }; /* Functions returning ASCII string measurements of a single GEOMETRY argument */ class Item_str_ascii_func_args_geometry: public Item_str_ascii_func { protected: bool check_arguments() const { DBUG_ASSERT(arg_count >= 1); return Type_handler_geometry::check_type_geom_or_binary(func_name(), args[0]); } public: Item_str_ascii_func_args_geometry(THD *thd, Item *a) :Item_str_ascii_func(thd, a) {} Item_str_ascii_func_args_geometry(THD *thd, Item *a, Item *b) :Item_str_ascii_func(thd, a, b) {} Item_str_ascii_func_args_geometry(THD *thd, Item *a, Item *b, Item *c) :Item_str_ascii_func(thd, a, b, c) {} }; /* Functions returning binary string measurements of a single GEOMETRY argument */ class Item_binary_func_args_geometry: public Item_str_func { protected: bool check_arguments() const { DBUG_ASSERT(arg_count >= 1); return Type_handler_geometry::check_type_geom_or_binary(func_name(), args[0]); } public: Item_binary_func_args_geometry(THD *thd, Item *a) :Item_str_func(thd, a) {} }; /* Functions returning GEOMETRY measurements of a single GEOEMETRY argument */ class Item_geometry_func_args_geometry: public Item_geometry_func { protected: bool check_arguments() const { DBUG_ASSERT(arg_count >= 1); return Type_handler_geometry::check_type_geom_or_binary(func_name(), args[0]); } public: Item_geometry_func_args_geometry(THD *thd, Item *a) :Item_geometry_func(thd, a) {} Item_geometry_func_args_geometry(THD *thd, Item *a, Item *b) :Item_geometry_func(thd, a, b) {} }; /* Functions returning REAL result relationships between two GEOMETRY arguments */ class Item_real_func_args_geometry_geometry: public Item_real_func { protected: bool check_arguments() const { DBUG_ASSERT(arg_count >= 2); return Type_handler_geometry::check_types_geom_or_binary(func_name(), args, 0, 2); } public: Item_real_func_args_geometry_geometry(THD *thd, Item *a, Item *b) :Item_real_func(thd, a, b) {} }; /* Functions returning BOOL result relationships between two GEOMETRY arguments */ class Item_bool_func_args_geometry_geometry: public Item_bool_func { protected: String value; bool check_arguments() const { DBUG_ASSERT(arg_count >= 2); return Type_handler_geometry::check_types_geom_or_binary(func_name(), args, 0, 2); } public: Item_bool_func_args_geometry_geometry(THD *thd, Item *a, Item *b, Item *c) :Item_bool_func(thd, a, b, c) {} }; class Item_func_geometry_from_text: public Item_geometry_func { bool check_arguments() const { return args[0]->check_type_general_purpose_string(func_name()) || check_argument_types_can_return_int(1, MY_MIN(2, arg_count)); } public: Item_func_geometry_from_text(THD *thd, Item *a): Item_geometry_func(thd, a) {} Item_func_geometry_from_text(THD *thd, Item *a, Item *srid): Item_geometry_func(thd, a, srid) {} const char *func_name() const { return "st_geometryfromtext"; } String *val_str(String *); Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_geometry_from_wkb: public Item_geometry_func { bool check_arguments() const { return Type_handler_geometry::check_type_geom_or_binary(func_name(), args[0]) || check_argument_types_can_return_int(1, MY_MIN(2, arg_count)); } public: Item_func_geometry_from_wkb(THD *thd, Item *a): Item_geometry_func(thd, a) {} Item_func_geometry_from_wkb(THD *thd, Item *a, Item *srid): Item_geometry_func(thd, a, srid) {} const char *func_name() const { return "st_geometryfromwkb"; } String *val_str(String *); Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_geometry_from_json: public Item_geometry_func { String tmp_js; bool check_arguments() const { // TODO: check with Alexey, for better args[1] and args[2] type control return args[0]->check_type_general_purpose_string(func_name()) || check_argument_types_traditional_scalar(1, MY_MIN(3, arg_count)); } public: Item_func_geometry_from_json(THD *thd, Item *js): Item_geometry_func(thd, js) {} Item_func_geometry_from_json(THD *thd, Item *js, Item *opt): Item_geometry_func(thd, js, opt) {} Item_func_geometry_from_json(THD *thd, Item *js, Item *opt, Item *srid): Item_geometry_func(thd, js, opt, srid) {} const char *func_name() const { return "st_geomfromgeojson"; } String *val_str(String *); Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_as_wkt: public Item_str_ascii_func_args_geometry { public: Item_func_as_wkt(THD *thd, Item *a) :Item_str_ascii_func_args_geometry(thd, a) {} const char *func_name() const { return "st_astext"; } String *val_str_ascii(String *); bool fix_length_and_dec(); Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_as_wkb: public Item_binary_func_args_geometry { public: Item_func_as_wkb(THD *thd, Item *a) :Item_binary_func_args_geometry(thd, a) {} const char *func_name() const { return "st_aswkb"; } String *val_str(String *); const Type_handler *type_handler() const { return &type_handler_long_blob; } bool fix_length_and_dec() { collation.set(&my_charset_bin); decimals=0; max_length= (uint32) UINT_MAX32; maybe_null= 1; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_as_geojson: public Item_str_ascii_func_args_geometry { bool check_arguments() const { // TODO: check with Alexey, for better args[1] and args[2] type control return Item_str_ascii_func_args_geometry::check_arguments() || check_argument_types_traditional_scalar(1, MY_MIN(3, arg_count)); } public: Item_func_as_geojson(THD *thd, Item *js) :Item_str_ascii_func_args_geometry(thd, js) {} Item_func_as_geojson(THD *thd, Item *js, Item *max_dec_digits) :Item_str_ascii_func_args_geometry(thd, js, max_dec_digits) {} Item_func_as_geojson(THD *thd, Item *js, Item *max_dec_digits, Item *opt) :Item_str_ascii_func_args_geometry(thd, js, max_dec_digits, opt) {} const char *func_name() const { return "st_asgeojson"; } bool fix_length_and_dec(); String *val_str_ascii(String *); Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_geometry_type: public Item_str_ascii_func_args_geometry { public: Item_func_geometry_type(THD *thd, Item *a) :Item_str_ascii_func_args_geometry(thd, a) {} String *val_str_ascii(String *); const char *func_name() const { return "st_geometrytype"; } bool fix_length_and_dec() { // "GeometryCollection" is the longest fix_length_and_charset(20, default_charset()); maybe_null= 1; return FALSE; }; Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; // #define HEAVY_CONVEX_HULL class Item_func_convexhull: public Item_geometry_func_args_geometry { class ch_node: public Gcalc_dyn_list::Item { public: const Gcalc_heap::Info *pi; ch_node *prev; Gcalc_dyn_list::Item *next; ch_node *get_next() { return (ch_node *) next; } }; Gcalc_heap collector; Gcalc_function func; Gcalc_dyn_list res_heap; Gcalc_result_receiver res_receiver; String tmp_value; #ifdef HEAVY_CONVEX_HULL Gcalc_scan_iterator scan_it; #endif /*HEAVY_CONVEX_HULL*/ ch_node *new_ch_node() { return (ch_node *) res_heap.new_item(); } int add_node_to_line(ch_node **p_cur, int dir, const Gcalc_heap::Info *pi); public: Item_func_convexhull(THD *thd, Item *a) :Item_geometry_func_args_geometry(thd, a), res_heap(8192, sizeof(ch_node)) {} const char *func_name() const { return "st_convexhull"; } String *val_str(String *); Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_centroid: public Item_geometry_func_args_geometry { public: Item_func_centroid(THD *thd, Item *a) :Item_geometry_func_args_geometry(thd, a) {} const char *func_name() const { return "st_centroid"; } String *val_str(String *); const Type_handler *type_handler() const { return &type_handler_point; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_envelope: public Item_geometry_func_args_geometry { public: Item_func_envelope(THD *thd, Item *a) :Item_geometry_func_args_geometry(thd, a) {} const char *func_name() const { return "st_envelope"; } String *val_str(String *); const Type_handler *type_handler() const { return &type_handler_polygon; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_boundary: public Item_geometry_func_args_geometry { class Transporter : public Gcalc_shape_transporter { Gcalc_result_receiver *m_receiver; uint n_points; Gcalc_function::shape_type current_type; double last_x, last_y; public: Transporter(Gcalc_result_receiver *receiver) : Gcalc_shape_transporter(NULL), m_receiver(receiver) {} int single_point(double x, double y); int start_line(); int complete_line(); int start_poly(); int complete_poly(); int start_ring(); int complete_ring(); int add_point(double x, double y); int start_collection(int n_objects); }; Gcalc_result_receiver res_receiver; public: Item_func_boundary(THD *thd, Item *a) :Item_geometry_func_args_geometry(thd, a) {} const char *func_name() const { return "st_boundary"; } String *val_str(String *); Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_point: public Item_geometry_func { bool check_arguments() const { return check_argument_types_can_return_real(0, 2); } public: Item_func_point(THD *thd, Item *a, Item *b): Item_geometry_func(thd, a, b) {} Item_func_point(THD *thd, Item *a, Item *b, Item *srid): Item_geometry_func(thd, a, b, srid) {} const char *func_name() const { return "point"; } String *val_str(String *); const Type_handler *type_handler() const { return &type_handler_point; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_spatial_decomp: public Item_geometry_func_args_geometry { enum Functype decomp_func; public: Item_func_spatial_decomp(THD *thd, Item *a, Item_func::Functype ft): Item_geometry_func_args_geometry(thd, a) { decomp_func = ft; } const char *func_name() const { switch (decomp_func) { case SP_STARTPOINT: return "st_startpoint"; case SP_ENDPOINT: return "st_endpoint"; case SP_EXTERIORRING: return "st_exteriorring"; default: DBUG_ASSERT(0); // Should never happened return "spatial_decomp_unknown"; } } String *val_str(String *); Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_spatial_decomp_n: public Item_geometry_func_args_geometry { enum Functype decomp_func_n; bool check_arguments() const { return Item_geometry_func_args_geometry::check_arguments() || args[1]->check_type_can_return_int(func_name()); } public: Item_func_spatial_decomp_n(THD *thd, Item *a, Item *b, Item_func::Functype ft) :Item_geometry_func_args_geometry(thd, a, b), decomp_func_n(ft) { } const char *func_name() const { switch (decomp_func_n) { case SP_POINTN: return "st_pointn"; case SP_GEOMETRYN: return "st_geometryn"; case SP_INTERIORRINGN: return "st_interiorringn"; default: DBUG_ASSERT(0); // Should never happened return "spatial_decomp_n_unknown"; } } String *val_str(String *); Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_spatial_collection: public Item_geometry_func { bool check_arguments() const { return Type_handler_geometry::check_types_geom_or_binary(func_name(), args, 0, arg_count); } enum Geometry::wkbType coll_type; enum Geometry::wkbType item_type; public: Item_func_spatial_collection(THD *thd, List &list, enum Geometry::wkbType ct, enum Geometry::wkbType it): Item_geometry_func(thd, list) { coll_type=ct; item_type=it; } String *val_str(String *); bool fix_length_and_dec() { if (Item_geometry_func::fix_length_and_dec()) return TRUE; for (unsigned int i= 0; i < arg_count; ++i) { if (args[i]->is_fixed() && args[i]->field_type() != MYSQL_TYPE_GEOMETRY) { String str; args[i]->print(&str, QT_NO_DATA_EXPANSION); str.append('\0'); my_error(ER_ILLEGAL_VALUE_FOR_TYPE, MYF(0), "non geometric", str.ptr()); return TRUE; } } return FALSE; } }; class Item_func_geometrycollection: public Item_func_spatial_collection { public: Item_func_geometrycollection(THD *thd, List &list) :Item_func_spatial_collection(thd, list, Geometry::wkb_geometrycollection, Geometry::wkb_point) { } const Type_handler *type_handler() const { return &type_handler_geometrycollection; } const char *func_name() const { return "geometrycollection"; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_linestring: public Item_func_spatial_collection { public: Item_func_linestring(THD *thd, List &list) :Item_func_spatial_collection(thd, list, Geometry::wkb_linestring, Geometry::wkb_point) { } const Type_handler *type_handler() const { return &type_handler_linestring; } const char *func_name() const { return "linestring"; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_polygon: public Item_func_spatial_collection { public: Item_func_polygon(THD *thd, List &list) :Item_func_spatial_collection(thd, list, Geometry::wkb_polygon, Geometry::wkb_linestring) { } const Type_handler *type_handler() const { return &type_handler_polygon; } const char *func_name() const { return "polygon"; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_multilinestring: public Item_func_spatial_collection { public: Item_func_multilinestring(THD *thd, List &list) :Item_func_spatial_collection(thd, list, Geometry::wkb_multilinestring, Geometry::wkb_linestring) { } const Type_handler *type_handler() const { return &type_handler_multilinestring; } const char *func_name() const { return "multilinestring"; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_multipoint: public Item_func_spatial_collection { public: Item_func_multipoint(THD *thd, List &list) :Item_func_spatial_collection(thd, list, Geometry::wkb_multipoint, Geometry::wkb_point) { } const Type_handler *type_handler() const { return &type_handler_multipoint; } const char *func_name() const { return "multipoint"; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_multipolygon: public Item_func_spatial_collection { public: Item_func_multipolygon(THD *thd, List &list) :Item_func_spatial_collection(thd, list, Geometry::wkb_multipolygon, Geometry::wkb_polygon) { } const Type_handler *type_handler() const { return &type_handler_multipolygon; } const char *func_name() const { return "multipolygon"; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; /* Spatial relations */ class Item_func_spatial_rel: public Item_bool_func2_with_rev { protected: enum Functype spatial_rel; String tmp_value1, tmp_value2; SEL_ARG *get_mm_leaf(RANGE_OPT_PARAM *param, Field *field, KEY_PART *key_part, Item_func::Functype type, Item *value); bool check_arguments() const { DBUG_ASSERT(arg_count >= 2); return Type_handler_geometry::check_types_geom_or_binary(func_name(), args, 0, 2); } public: Item_func_spatial_rel(THD *thd, Item *a, Item *b, enum Functype sp_rel): Item_bool_func2_with_rev(thd, a, b), spatial_rel(sp_rel) { maybe_null= true; } enum Functype functype() const { return spatial_rel; } enum Functype rev_functype() const { switch (spatial_rel) { case SP_CONTAINS_FUNC: return SP_WITHIN_FUNC; case SP_WITHIN_FUNC: return SP_CONTAINS_FUNC; default: return spatial_rel; } } bool is_null() { (void) val_int(); return null_value; } void add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level, table_map usable_tables, SARGABLE_PARAM **sargables) { return add_key_fields_optimize_op(join, key_fields, and_level, usable_tables, sargables, false); } bool need_parentheses_in_default() { return false; } Item *build_clone(THD *thd) { return 0; } }; class Item_func_spatial_mbr_rel: public Item_func_spatial_rel { public: Item_func_spatial_mbr_rel(THD *thd, Item *a, Item *b, enum Functype sp_rel): Item_func_spatial_rel(thd, a, b, sp_rel) { } longlong val_int(); const char *func_name() const; Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_spatial_precise_rel: public Item_func_spatial_rel { Gcalc_heap collector; Gcalc_scan_iterator scan_it; Gcalc_function func; public: Item_func_spatial_precise_rel(THD *thd, Item *a, Item *b, enum Functype sp_rel): Item_func_spatial_rel(thd, a, b, sp_rel), collector() { } longlong val_int(); const char *func_name() const; Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_spatial_relate: public Item_bool_func_args_geometry_geometry { Gcalc_heap collector; Gcalc_scan_iterator scan_it; Gcalc_function func; String tmp_value1, tmp_value2, tmp_matrix; bool check_arguments() const { return Item_bool_func_args_geometry_geometry::check_arguments() || args[2]->check_type_general_purpose_string(func_name()); } public: Item_func_spatial_relate(THD *thd, Item *a, Item *b, Item *matrix): Item_bool_func_args_geometry_geometry(thd, a, b, matrix) { } longlong val_int(); const char *func_name() const { return "st_relate"; } bool need_parentheses_in_default() { return false; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; /* Spatial operations */ class Item_func_spatial_operation: public Item_geometry_func { bool check_arguments() const { DBUG_ASSERT(arg_count >= 2); return Type_handler_geometry::check_types_geom_or_binary(func_name(), args, 0, 2); } public: Gcalc_function::op_type spatial_op; Gcalc_heap collector; Gcalc_function func; Gcalc_result_receiver res_receiver; Gcalc_operation_reducer operation; String tmp_value1,tmp_value2; public: Item_func_spatial_operation(THD *thd, Item *a,Item *b, Gcalc_function::op_type sp_op): Item_geometry_func(thd, a, b), spatial_op(sp_op) {} virtual ~Item_func_spatial_operation(); String *val_str(String *); const char *func_name() const; virtual inline void print(String *str, enum_query_type query_type) { Item_func::print(str, query_type); } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_buffer: public Item_geometry_func_args_geometry { bool check_arguments() const { return Item_geometry_func_args_geometry::check_arguments() || args[1]->check_type_can_return_real(func_name()); } protected: class Transporter : public Gcalc_operation_transporter { int m_npoints; double m_d; double x1,y1,x2,y2; double x00,y00,x01,y01; int add_edge_buffer(double x3, double y3, bool round_p1, bool round_p2); int add_last_edge_buffer(); int add_point_buffer(double x, double y); int complete(); int m_nshapes; Gcalc_function::op_type buffer_op; int last_shape_pos; bool skip_line; public: Transporter(Gcalc_function *fn, Gcalc_heap *heap, double d) : Gcalc_operation_transporter(fn, heap), m_npoints(0), m_d(d), m_nshapes(0), buffer_op((d > 0.0) ? Gcalc_function::op_union : Gcalc_function::op_difference), skip_line(FALSE) {} int single_point(double x, double y); int start_line(); int complete_line(); int start_poly(); int complete_poly(); int start_ring(); int complete_ring(); int add_point(double x, double y); int start_collection(int n_objects); }; Gcalc_heap collector; Gcalc_function func; Gcalc_result_receiver res_receiver; Gcalc_operation_reducer operation; public: Item_func_buffer(THD *thd, Item *obj, Item *distance) :Item_geometry_func_args_geometry(thd, obj, distance) {} const char *func_name() const { return "st_buffer"; } String *val_str(String *); Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_isempty: public Item_bool_func_args_geometry { public: Item_func_isempty(THD *thd, Item *a) :Item_bool_func_args_geometry(thd, a) {} longlong val_int(); const char *func_name() const { return "st_isempty"; } bool fix_length_and_dec() { maybe_null= 1; return FALSE; } bool need_parentheses_in_default() { return false; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_issimple: public Item_long_func_args_geometry { Gcalc_heap collector; Gcalc_function func; Gcalc_scan_iterator scan_it; String tmp; public: Item_func_issimple(THD *thd, Item *a) :Item_long_func_args_geometry(thd, a) {} longlong val_int(); const char *func_name() const { return "st_issimple"; } bool fix_length_and_dec() { decimals=0; max_length=2; return FALSE; } uint decimal_precision() const { return 1; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_isclosed: public Item_long_func_args_geometry { public: Item_func_isclosed(THD *thd, Item *a) :Item_long_func_args_geometry(thd, a) {} longlong val_int(); const char *func_name() const { return "st_isclosed"; } bool fix_length_and_dec() { decimals=0; max_length=2; return FALSE; } uint decimal_precision() const { return 1; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_isring: public Item_func_issimple { public: Item_func_isring(THD *thd, Item *a): Item_func_issimple(thd, a) {} longlong val_int(); const char *func_name() const { return "st_isring"; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_dimension: public Item_long_func_args_geometry { public: Item_func_dimension(THD *thd, Item *a) :Item_long_func_args_geometry(thd, a) {} longlong val_int(); const char *func_name() const { return "st_dimension"; } bool fix_length_and_dec() { max_length= 10; maybe_null= 1; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_x: public Item_real_func_args_geometry { public: Item_func_x(THD *thd, Item *a): Item_real_func_args_geometry(thd, a) {} double val_real(); const char *func_name() const { return "st_x"; } bool fix_length_and_dec() { if (Item_real_func::fix_length_and_dec()) return TRUE; maybe_null= 1; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_y: public Item_real_func_args_geometry { public: Item_func_y(THD *thd, Item *a): Item_real_func_args_geometry(thd, a) {} double val_real(); const char *func_name() const { return "st_y"; } bool fix_length_and_dec() { if (Item_real_func::fix_length_and_dec()) return TRUE; maybe_null= 1; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_numgeometries: public Item_long_func_args_geometry { public: Item_func_numgeometries(THD *thd, Item *a) :Item_long_func_args_geometry(thd, a) {} longlong val_int(); const char *func_name() const { return "st_numgeometries"; } bool fix_length_and_dec() { max_length= 10; maybe_null= 1; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_numinteriorring: public Item_long_func_args_geometry { public: Item_func_numinteriorring(THD *thd, Item *a) :Item_long_func_args_geometry(thd, a) {} longlong val_int(); const char *func_name() const { return "st_numinteriorrings"; } bool fix_length_and_dec() { max_length= 10; maybe_null= 1; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_numpoints: public Item_long_func_args_geometry { public: Item_func_numpoints(THD *thd, Item *a) :Item_long_func_args_geometry(thd, a) {} longlong val_int(); const char *func_name() const { return "st_numpoints"; } bool fix_length_and_dec() { max_length= 10; maybe_null= 1; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_area: public Item_real_func_args_geometry { public: Item_func_area(THD *thd, Item *a): Item_real_func_args_geometry(thd, a) {} double val_real(); const char *func_name() const { return "st_area"; } bool fix_length_and_dec() { if (Item_real_func::fix_length_and_dec()) return TRUE; maybe_null= 1; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_glength: public Item_real_func_args_geometry { String value; public: Item_func_glength(THD *thd, Item *a) :Item_real_func_args_geometry(thd, a) {} double val_real(); const char *func_name() const { return "st_length"; } bool fix_length_and_dec() { if (Item_real_func::fix_length_and_dec()) return TRUE; maybe_null= 1; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_srid: public Item_long_func_args_geometry { public: Item_func_srid(THD *thd, Item *a) :Item_long_func_args_geometry(thd, a) {} longlong val_int(); const char *func_name() const { return "srid"; } bool fix_length_and_dec() { max_length= 10; maybe_null= 1; return FALSE; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_distance: public Item_real_func_args_geometry_geometry { String tmp_value1; String tmp_value2; Gcalc_heap collector; Gcalc_function func; Gcalc_scan_iterator scan_it; public: Item_func_distance(THD *thd, Item *a, Item *b) :Item_real_func_args_geometry_geometry(thd, a, b) {} double val_real(); const char *func_name() const { return "st_distance"; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_sphere_distance: public Item_real_func { double spherical_distance_points(Geometry *g1, Geometry *g2, const double sphere_r); public: Item_func_sphere_distance(THD *thd, List &list): Item_real_func(thd, list) {} double val_real(); const char *func_name() const { return "st_distance_sphere"; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; class Item_func_pointonsurface: public Item_geometry_func_args_geometry { String tmp_value; Gcalc_heap collector; Gcalc_function func; Gcalc_scan_iterator scan_it; public: Item_func_pointonsurface(THD *thd, Item *a) :Item_geometry_func_args_geometry(thd, a) {} const char *func_name() const { return "st_pointonsurface"; } String *val_str(String *); const Type_handler *type_handler() const { return &type_handler_point; } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; #ifndef DBUG_OFF class Item_func_gis_debug: public Item_long_func { public: Item_func_gis_debug(THD *thd, Item *a): Item_long_func(thd, a) { null_value= false; } bool fix_length_and_dec() { fix_char_length(10); return FALSE; } const char *func_name() const { return "st_gis_debug"; } longlong val_int(); bool check_vcol_func_processor(void *arg) { return mark_unsupported_function(func_name(), "()", arg, VCOL_IMPOSSIBLE); } Item *get_copy(THD *thd) { return get_item_copy(thd, this); } }; #endif #define GEOM_NEW(thd, obj_constructor) new (thd->mem_root) obj_constructor #define GEOM_TYPE(x) (x) #else /*HAVE_SPATIAL*/ #define GEOM_NEW(thd, obj_constructor) NULL #define GEOM_TYPE(x) NULL #endif /*HAVE_SPATIAL*/ #endif /* ITEM_GEOFUNC_INCLUDED */