[postgis-users] A new LineMerge is required

[Shaozhong SHI]

Given several lines as 'LINESTRING(0 0, 1 1)', 'linestring(1 1, 2 2)',
'Linestring(3 3, 2 2)', 'linestring(4 4, 3 3)', 'linestring(4 4, 5 5)',
'linestring(5 5, 6 6) ', how to build a joined up line with repeating
points of connection?

Current St_LineMerge appears not to do the job.

What is needed is to build a new line based on what is given.

Lines are connected.

But the newly built line should be a line that keeps the order of the
original vertices and do not repeat any vertices.

Regards,

David
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