ST_YMin

Introduction: Return the minimum Y coordinate of A

Format: ST_Y_Min (A: Geometry)

Return type: Double

Since: v1.2.1

Example:

SELECT ST_YMin(ST_GeomFromText('POLYGON((0 0 1, 1 1 1, 1 2 1, 1 1 1, 0 0 1))'))

Output:

0