Topology - create topology tolerance

Michal Seidl <[email protected]>
Newsgroups gmane.comp.gis.postgis
Message-ID <[email protected]> 
Hello,
is there any documentation when and how is topology tolerance parameter 
used? Despite I have set this tolerance to 0.001m I can found topology 
elements (nodes, edges) geometry with much more decimal digits?

https://postgis.net/docs/CreateTopology.html

Thanks Michal

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