full_subdiagrams_transitive (view)

4 rows where shape = "pair of parallel arrows"

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CREATE VIEW "full_subdiagrams_transitive" AS with recursive t as (
select subshape, shape from full_subdiagrams
union
select full_subdiagrams.subshape, t.shape from full_subdiagrams join t where full_subdiagrams.shape == t.subshape
) select * from t;