MySQL：提供给函数 st_geometryfromtext 的无效 GIS 数据

Question

这是我的代码：

SET @poly =
    'Polygon((-98.07697478272888 30.123832577126326,
              -98.07697478272888 30.535734310413392,
              -97.48302581787107 30.535734310413392,
              -97.48302581787107 30.123832577126326))';

SELECT name
FROM county_shapes
WHERE MBRContains(ST_GeomFromText(@poly), SHAPE);

每当我运行我得到一个 "MySQL: Invalid GIS data provided to function st_geometryfromtext" 错误。

这个returns同样的错误：

SELECT name
FROM county_shapes
WHERE MBRContains(ST_GeomFromText('Polygon((-98.07697478272888 30.123832577126326,
              -98.07697478272888 30.535734310413392,
              -97.48302581787107 30.535734310413392,
              -97.48302581787107 30.123832577126326))'), SHAPE);

有什么想法吗？

Answer 1

您需要将第一个点和最后一个点指定为相同。

试试这个。

SET @poly =
    'Polygon((-98.07697478272888 30.123832577126326,
              -98.07697478272888 30.535734310413392,
              -97.48302581787107 30.535734310413392,
              -97.48302581787107 30.123832577126326,
              -98.07697478272888 30.123832577126326,))';

SELECT name
FROM county_shapes
WHERE MBRContains(ST_GeomFromText(@poly), SHAPE);

和

SELECT name
FROM county_shapes
WHERE MBRContains(ST_GeomFromText('Polygon((
              -98.07697478272888 30.123832577126326,
              -98.07697478272888 30.535734310413392,
              -97.48302581787107 30.535734310413392,
              -97.48302581787107 30.123832577126326,
              -98.07697478272888 30.123832577126326))'), SHAPE);

Answer 2

这是我的查询

SELECT * FROM my_table WHERE ST_Within(point(`lon`, `lat`),ST_GeomFromText('MultiPolygon(((-58.5832214 -34.5365410,-58.5832214 -34.5365410,-58.5832214 -34.5365410,-58.5832214 -34.5365410,-58.5832214 -34.5365410)),((-58.5887184 -34.6642799,-58.2893410 -34.6642799,-58.2893410 -34.5280609,-58.5887184 -34.5280609,-58.5887184 -34.6642799,-58.5887184 -34.6642799),(-58.4351311 -34.5975914,-58.4347000 -34.5976410,-58.4346085 -34.5977516,-58.4348602 -34.5979195,-58.4351311 -34.5975914,-58.4351311 -34.5975914)))'))>'0'

如果你看到第一个多边形的点，都是一样的，它不是有效的多边形

mysql 5.7 抛出无效 GIS 错误，但 mysql 8 未抛出错误

删除第一个多边形解决了我的问题

MySQL：提供给函数 st_geometryfromtext 的无效 GIS 数据

MySQL: Invalid GIS data provided to function st_geometryfromtext

mysql

gis

spatial-index

mysql-5.7