A função AsText()
fornece acesso textual
a valores de geometria. Ele converte a geometria a partir de
um formato interno em uma string WKT.
mysql> SELECT AsText(g) FROM geom;
+-------------------------+
| AsText(p1) |
+-------------------------+
| POINT(1 1) |
| LINESTRING(0 0,1 1,2 2) |
+-------------------------+
2 rows in set (0.00 sec)
This is a translation of the MySQL Reference Manual that can be found at dev.mysql.com. The original Reference Manual is in English, and this translation is not necessarily as up to date as the English version.