Hello! Using symfony2 and doctrine I'm trying to build a graph (no loops) of referencing documents. I've properly built a self-related entity "Document", so getting/setting closest parents and childs (each document can have any number of parents and/or childs) is not a problem. My question is: will it be possible (and how) to receive and populate ALL parents (ascendants) OR childs (descendants) of the particular document (node) in a tree, using pgsql's "with recursive" construction and native sql?
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