在 Postgresql 中将 WKT 转换为 WKB
Converting WKT to WKB in Postgresql
我有一个名为 areas_map 的 table，它有两列 a_id (bigint) 和 geom (geometry(MultiPolygon, 4326))。
Table "public.areas_map"
栏目 |类型 |整理|可为空 |默认
----------+----------------------------+-------- --+------------+--------
gid |整数 | |不为空 |
a_id |二进制 | | |
类型 |小型 | | |
地理 |几何（多边形，4326）| | |
mod_op |字符(1) | | |
mod_date |没有时区的时间戳 | | |
指标：
“areas_map_pkey” 主键，btree (gid)
“idx_areas_map_geom”要点（geom）
“idx_areas_map_a_id”btree (a_id)
触发器：
trig_mod_op_date 在 areas_map 上插入或更新每个行执行过程 add_mod_op_date()
我有另一个名为 areas 的 table，其中包含列 a_id_1 (character varying) 和 wkt 以插入上面的 table、areas_map。我需要将 wkt 几何图形转换为 wkb 几何图形，以便将其放入 'areas_map'.
这些是我数据库中 'areas' table 中的列。
Table“public.areas”专栏|类型 |整理|可为空 |默认 --------------+----------------+------------+-- ------+-------------------------------------- ogc_fid |整数 | |不为空 | nextval('areas_ogc_fid_seq'::regclass) a_id_1 |性格变化 | | |周|性格变化 | | | wkb_geometry |几何 | | |索引：“areas_pkey” PRIMARY KEY, btree (ogc_fid) “areas_wkb_geometry_geom_idx” gist (wkb_geometry)
这是 table 'areas' 中的数据。
ogc_fid | a_id_1 |周| wkb_geometry
----------+------------+------------------------ ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- --------------+-------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ------------------------------------------
1 | 3002618658 | MULTIPOLYGON(((-76.5473560619672 42.9413419720012,-76.5461994270791 42.9408894029933,-76.5428849220592 42.9424413310329,-76.540085618445 42.9435130207937,-76.5403432456807 42.9445933354756,-76.5417136457824 42.9446447959923,-76.5423695540135 42.9449534586902,-76.5424515359008 42.9454507456148,-76.5446238177076 42.9456536187894,-76.5449061034313 42.9473752994633,-76.5465216192731 42.9473555320693,-76.5464451670431 42.9465415450345，-76.547964643124 42.9465042162103，-76.5475477862325 42.9444728204718，-76.5473560619672 42.9413419720012))) |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
2 | 3003264375 | MULTIPOLYGON(((-118.20883035065 33.8744540214534,-118.208788426448 33.8811453764129,-118.214318573149 33.8811626720137,-118.213868789377 33.8764587738789,-118.214025554548 33.8755041061261,-118.214192790618 33.8749920466446,-118.213910539173 33.8744626447363,-118.20883035065 33.8744540214534))) | 010600000001000000010300000001000000080000000E9DF9795D8D5DC0C0FFFF1BEEEF404028D821CA5C8D5DC0865B275FC9F040406CA63F65B78D5DC09E603DF0C9F040409900B806B08D5DC0130D15CD2FF04040AF523D98B28D5DC0A4A9BF8410F0404092AFAD55B58D5DC0A14C48BDFFEF40402381D4B5B08D5DC0A85B5664EEEF40400E9DF9795D8D5DC0C0FFFF1BEEEF4040
（2 行）
我尝试了以下 sql 命令，但它一直给我错误。
INSERT INTO areas_map(a_id, geom)
SELECT a_id_1, ST_AsBinary(ST_GeomFromText(wkt)) AS geom
FROM areas WHERE a_id_1=CAST(a_id_1 as bigint);
非常感谢您的帮助。
谢谢。
根据你的错误，我认为你想要的查询是：
INSERT INTO areas_map(a_id, geom)
VALUES (3002618658, ST_SetSRID(ST_GeomFromText('MULTIPOLYGON(((-76.5473560619672 42.9413419720012,-76.5461994270791 42.9408894029933,-76.5428849220592 42.9424413310329,-76.540085618445 42.9435130207937,-76.5403432456807 42.9445933354756,-76.5417136457824 42.9446447959923,-76.5423695540135 42.9449534586902,-76.5424515359008 42.9454507456148,-76.5446238177076 42.9456536187894,-76.5449061034313 42.9473752994633,-76.5465216192731 42.9473555320693,-76.5464451670431 42.9465415450345,-76.547964643124 42.9465042162103,-76.5475477862325 42.9444728204718,-76.5473560619672 42.9413419720012)))'), 4326))
您只需将数据插入 table
我有一个名为 areas_map 的 table，它有两列 a_id (bigint) 和 geom (geometry(MultiPolygon, 4326))。
Table "public.areas_map" 栏目 |类型 |整理|可为空 |默认 ----------+----------------------------+-------- --+------------+-------- gid |整数 | |不为空 | a_id |二进制 | | | 类型 |小型 | | | 地理 |几何（多边形，4326）| | | mod_op |字符(1) | | | mod_date |没有时区的时间戳 | | | 指标： “areas_map_pkey” 主键，btree (gid) “idx_areas_map_geom”要点（geom） “idx_areas_map_a_id”btree (a_id) 触发器： trig_mod_op_date 在 areas_map 上插入或更新每个行执行过程 add_mod_op_date()
我有另一个名为 areas 的 table，其中包含列 a_id_1 (character varying) 和 wkt 以插入上面的 table、areas_map。我需要将 wkt 几何图形转换为 wkb 几何图形，以便将其放入 'areas_map'.
这些是我数据库中 'areas' table 中的列。
Table“public.areas”专栏|类型 |整理|可为空 |默认 --------------+----------------+------------+-- ------+-------------------------------------- ogc_fid |整数 | |不为空 | nextval('areas_ogc_fid_seq'::regclass) a_id_1 |性格变化 | | |周|性格变化 | | | wkb_geometry |几何 | | |索引：“areas_pkey” PRIMARY KEY, btree (ogc_fid) “areas_wkb_geometry_geom_idx” gist (wkb_geometry)
这是 table 'areas' 中的数据。
ogc_fid | a_id_1 |周| wkb_geometry
----------+------------+------------------------ ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- --------------+-------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ---------------------------------------------- ------------------------------------------
1 | 3002618658 | MULTIPOLYGON(((-76.5473560619672 42.9413419720012,-76.5461994270791 42.9408894029933,-76.5428849220592 42.9424413310329,-76.540085618445 42.9435130207937,-76.5403432456807 42.9445933354756,-76.5417136457824 42.9446447959923,-76.5423695540135 42.9449534586902,-76.5424515359008 42.9454507456148,-76.5446238177076 42.9456536187894,-76.5449061034313 42.9473752994633,-76.5465216192731 42.9473555320693,-76.5464451670431 42.9465415450345，-76.547964643124 42.9465042162103，-76.5475477862325 42.9444728204718，-76.5473560619672 42.9413419720012))) |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
2 | 3003264375 | MULTIPOLYGON(((-118.20883035065 33.8744540214534,-118.208788426448 33.8811453764129,-118.214318573149 33.8811626720137,-118.213868789377 33.8764587738789,-118.214025554548 33.8755041061261,-118.214192790618 33.8749920466446,-118.213910539173 33.8744626447363,-118.20883035065 33.8744540214534))) | 010600000001000000010300000001000000080000000E9DF9795D8D5DC0C0FFFF1BEEEF404028D821CA5C8D5DC0865B275FC9F040406CA63F65B78D5DC09E603DF0C9F040409900B806B08D5DC0130D15CD2FF04040AF523D98B28D5DC0A4A9BF8410F0404092AFAD55B58D5DC0A14C48BDFFEF40402381D4B5B08D5DC0A85B5664EEEF40400E9DF9795D8D5DC0C0FFFF1BEEEF4040
（2 行）
我尝试了以下 sql 命令，但它一直给我错误。
INSERT INTO areas_map(a_id, geom)
SELECT a_id_1, ST_AsBinary(ST_GeomFromText(wkt)) AS geom
FROM areas WHERE a_id_1=CAST(a_id_1 as bigint);
非常感谢您的帮助。 谢谢。
根据你的错误，我认为你想要的查询是：
INSERT INTO areas_map(a_id, geom)
VALUES (3002618658, ST_SetSRID(ST_GeomFromText('MULTIPOLYGON(((-76.5473560619672 42.9413419720012,-76.5461994270791 42.9408894029933,-76.5428849220592 42.9424413310329,-76.540085618445 42.9435130207937,-76.5403432456807 42.9445933354756,-76.5417136457824 42.9446447959923,-76.5423695540135 42.9449534586902,-76.5424515359008 42.9454507456148,-76.5446238177076 42.9456536187894,-76.5449061034313 42.9473752994633,-76.5465216192731 42.9473555320693,-76.5464451670431 42.9465415450345,-76.547964643124 42.9465042162103,-76.5475477862325 42.9444728204718,-76.5473560619672 42.9413419720012)))'), 4326))
您只需将数据插入 table