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12.16.3 Functions That Create Geometry Values from WKT Values

https://dev.mysql.com/doc/refman/5.7/en/gis-wkt-functions.html

These functions take as arguments a Well-Known Text (WKT) representation and, optionally, a spatial reference system identifier (SRID). ST_GeomFromText() accepts a WKT value of any geometry type as its first argument. Other functions provide ...

MySQL Glossary

https://dev.mysql.com/doc/refman/5.7/en/glossary.html

These terms are commonly used in information about the MySQL database server. This glossary originated as a reference for terminology about the InnoDB storage engine, and the majority of definitions are InnoDB-related. Files with this extension are ...

9.3 Keywords and Reserved Words

https://dev.mysql.com/doc/refman/5.7/en/keywords.html

Certain keywords, such as SELECT, DELETE, or BIGINT, are reserved and require special treatment for use as identifiers such as table and column names. This may also be true for the names of built-in functions. Reserved words are permitted as ...

11.4.2.6 Surface Class

https://dev.mysql.com/doc/refman/5.7/en/gis-class-surface.html

Polyhedral surfaces are formed by “stitching” together simple surfaces along their boundaries, polyhedral surfaces in three-dimensional space may not be planar as a whole. The OpenGIS specification defines a simple Surface as a geometry that ...

11.4.2.2 Geometry Class

https://dev.mysql.com/doc/refman/5.7/en/gis-class-geometry.html

It is a noninstantiable class but has a number of properties, described in the following list, that are common to all geometry values created from any of the Geometry subclasses. Geometry Properties A geometry value has the following properties: Its ...