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

ST_Z

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

This function extracts the Z coordinate of a point. For example:

create.select(stZ(stGeomFromText("POINT (0 0 1)"))).fetch();

The result being, for example

+------+
| ST_Z |
+------+
| 1    |
+------+

Dialect support

This example using jOOQ:

stZ(geometry)

Translates to the following dialect specific expressions:

Aurora Postgres, CockroachDB, Postgres, Redshift, Snowflake

st_z(geometry)

Oracle

(geometry).sdo_point.z

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

/* UNSUPPORTED */

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

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