irstv/H2GIS — pull request #269 by ebocher (2014-04-11 07:44:51+00:00)
Title: Add the ST_OrderingEquals 

as specified in the SQL/MM specification: SQL-MM 3: 5.1.43.

```mysql

SELECT ST_OrderingEquals(ST_GeomFromText('LINESTRING(0 0, 10 10)'),
ST_GeomFromText('LINESTRING(0 0, 5 5, 10 10)'));
st_orderingequals
-----------
f
(1 row)

SELECT ST_OrderingEquals('LINESTRING(0 0, 10 10)'::GEOMETRY,
'LINESTRING(0 0, 0 0, 10 10)'::GEOMETRY);
st_orderingequals
-----------
false
(1 row)

SELECT ST_OrderingEquals('LINESTRING(0 0, 10 10)'::GEOMETRY,
'LINESTRING(0 0, 10 10)'::GEOMETRY);
st_orderingequals
-----------
true
(1 row)

SELECT ST_OrderingEquals('LINESTRING(0 0 1, 10 10 2)'::GEOMETRY,
'LINESTRING(0 0 1, 10 10 2)'::GEOMETRY);
st_orderingequals
-----------
true
(1 row)

```