ST_MultiPointAggr( ST_Point ) method

Syntax

ST_MultiPoint::ST_MultiPointAggr( ST_Point geometry_column)

Parameters

• geometry_column – The geometry values to generate the collection. Typically this is a column.

Returns

ST_MultiPoint Returns a multipoint that contains all of the geometries in a group.

Examples

• Example 1 – The following example returns a single value which combines all geometries of type ST_Point from the SpatialShapes table into a single collection of type ST_MultiPoint. If the Shape column was of type ST_Point then the TREAT function and WHERE clause would not be necessary.

  SELECT ST_MultiPoint::ST_MultiPointAggr( TREAT( Shape AS ST_Point ) )
  FROM SpatialShapes WHERE Shape IS OF( ST_Point )

Standards

SQL/MM (ISO/IEC 13249-3: 2006) Vendor extension