如何从PostGIS中的MultiLineString获取第N个LineString？
[英]How to get the Nth LineString from a MultiLineString in PostGIS?
问题描述
我需要一种从PostGIS / PostgreSQL中的MultiLineString获取第N个LineString的方法，例如ST_PointN ，它可以从LineString获取第N个点。
1 个解决方案
解决方案1
3 已采纳 2011-12-16 19:07:28
PostGIS功能：
ST_GeometryN(a_geom geometry, dimension int)
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