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ST_PointN
Applies to ❌ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
This function returns the Nth point (1-based) of a linestring geometry. For example:
create.select(stPointN(stGeomFromText("LINESTRING (0 0, 0 1, 1 1, 1 2)"), 2)).fetch();
The result being, for example
| ST_PointN | +-------------+ | POINT (0 1) | +-------------+
Or, visually:
stPointN(geometry, 2)
Translates to the following dialect specific expressions:
-- AURORA_MYSQL, AURORA_POSTGRES, COCKROACHDB, MARIADB, MYSQL, ORACLE, POSTGRES, REDSHIFT, SNOWFLAKE st_pointn(geometry, 2) -- SQLSERVER geometry.STPointN(2) -- ACCESS, ASE, BIGQUERY, DB2, DERBY, DUCKDB, EXASOL, FIREBIRD, H2, HANA, HSQLDB, INFORMIX, MEMSQL, SQLDATAWAREHOUSE, -- SQLITE, SYBASE, TERADATA, TRINO, VERTICA, YUGABYTEDB /* UNSUPPORTED */
(These are currently generated with jOOQ 3.19, see #10141), or translate your own on our website
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