Available in versions: Dev (3.20) | Latest (3.19) | 3.18 | 3.17 | 3.16

ST_NumPoints

Applies to ❌ Open Source Edition   ✅ Express Edition   ✅ Professional Edition   ✅ Enterprise Edition

This function returns the number of points on a linestring geometry. For example:

create.select(stNumPoints(stGeomFromText("LINESTRING (0 0, 0 1, 1 1, 1 2)"))).fetch();

The result being, for example

+--------------+
| ST_NumPoints |
+--------------+
| 4            |
+--------------+

To access the Nth point (1-based), use ST_PointN.

Dialect support

This example using jOOQ:

stNumPoints(geometry)

Translates to the following dialect specific expressions:

Aurora MySQL, Aurora Postgres, CockroachDB, MariaDB, MySQL, Oracle, Postgres, Redshift, Snowflake

st_numpoints(geometry)

SQLServer

geometry.STNumPoints()

ASE, Access, BigQuery, DB2, Derby, DuckDB, Exasol, Firebird, H2, HSQLDB, Hana, Informix, MemSQL, SQLDataWarehouse, SQLite, Sybase, Teradata, Trino, Vertica, YugabyteDB

/* UNSUPPORTED */

(These are currently generated with jOOQ 3.20, see #10141), or translate your own on our website

References to this page

Feedback

Do you have any feedback about this page? We'd love to hear it!

The jOOQ Logo