{"author_url":"https://blog.hatena.ne.jp/sakaik/","width":"100%","version":"1.0","blog_title":"sakaik\u306e\u65e5\u3005\u96d1\u611f\uff5e(T)\u7de8","title":" MySQL GIS\u62e1\u5f35\u95a2\u6570\uff1a STX_RemoveRepeatedPoints()","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsakaik.hateblo.jp%2Fentry%2F20260329%2FSTX_RemoveRepeatedPoints_func\" title=\" MySQL GIS\u62e1\u5f35\u95a2\u6570\uff1a STX_RemoveRepeatedPoints() - sakaik\u306e\u65e5\u3005\u96d1\u611f\uff5e(T)\u7de8\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","categories":["mysql","gis","spatial","newfunc"],"type":"rich","published":"2026-03-29 12:43:20","provider_url":"https://hatena.blog","url":"https://sakaik.hateblo.jp/entry/20260329/STX_RemoveRepeatedPoints_func","blog_url":"https://sakaik.hateblo.jp/","description":"\u81ea\u4f5c\u306e\u3001Spatial(GIS)\u95a2\u9023\u306e\u95a2\u6570\u3092MySQL\u306b\u8ffd\u52a0\u3059\u308b\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u95a2\u6570\u3092\u3072\u3068\u3064\u3072\u3068\u3064\u52d5\u4f5c\u78ba\u8a8d\u3057\u306a\u304c\u3089\u7d39\u4ecb\u3059\u308b\u30b7\u30ea\u30fc\u30ba\u3002 https://sakaik.hateblo.jp/entry/20260215/mysql_spatial_functions_plugin STX_RemoveRepeatedPoints(geom [, tol]) \u9023\u7d9a\u3059\u308b\u91cd\u8907\u9802\u70b9\u3092\u9664\u53bb\u3059\u308b\u95a2\u6570\u3002 \u52d5\u4f5c\u7d39\u4ecb \u70b9\u304c\u91cd\u8907\u3059\u308bLINESTRING\u304b\u3089\u91cd\u8907\u90e8\u5206\u3092\u9664\u53bb mysql> SET @g=ST_GeomFromText('LINESTRING(0 0, 0 0, 1 1, 1 1, 2 2)'); mysql>\u2026","provider_name":"Hatena Blog","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/s/sakaik/20260222/20260222081750.png","author_name":"sakaik"}