3

I am trying the following insert query on mysql 8.

Insert Into fence Set       
            fenceName='aa',
            radius=2,                   
            fenceGeometry=ST_GeomFromText('POINT(102.1893310546875 3.880696482497261)', 4326)

It works perfectly on mysql 5.7 but here in mysql 8 I get this error Latitude 102.189331 is out of range in function st_geomfromtext. It must be within [-90.000000, 90.000000].

Based on some suggestion I also did this.

ALTER TABLE fence MODIFY fenceGeometry geometry NOT NULL SRID 4326;

But yet the it gives me the same results.

2

That's because on MySQL 8, they did the unthinkable and implemented the stupid method of doing geography coordinates (like MySQL). This broke backwards compatability.

  • When you use Geometry on MySQL (any SRID) except 4326 you use (long,lat). That's (x,y) on a Cartesian system.
  • When you use Geography on MySQL (SRID = 4326) you use (lat, long). That's (y,x) typically. This is done because English speakers tend to say "latitude and longitude" rather than "longitude, latitude"

Amusingly Oracle which owns MySQL does not do this on Oracle Spatial. Oracle Spatial and PostGIS are consistently (long,lat)`. To resolve this switch the order, not

ST_GeomFromText('POINT(102.1893310546875 3.880696482497261)', 4326)

But, this,

ST_GeomFromText('POINT(3.880696482497261 102.1893310546875)', 4326)

In MySQL 5.x there was no real geographical coordinate system.

Side note

You shouldn't be using WKT for this if you have the points you can just use Point(), and ST_SRID(pt,SRID)

ST_SRID(Point(3.880696482497261, 102.1893310546875), 4326)

More information

For more information see also,

  • There are two ways to construct a point, one is constructing from text (ST_GeomFromText and ST_PointFromText), the other is using the Point Constructor. If you're making calls to construct point you're better of just using the point constructor than using text (which then has to be parsed). – Evan Carroll Jul 3 at 17:01
  • actually I am going to be using points, polygon and lines. So which is best then should I just stick with ST_GeomFromText – newbie Jul 3 at 17:02
  • Yes, if you're doing the other things too that's really the only way in MySQL. – Evan Carroll Jul 3 at 17:03

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