(** Tests for {!Sql.Query}'s read view of a catalog, exercised through
    {!Sql.Engine} over a {!Catalog.Spi} reference store (the path the
    pure-storage backends take). *)

val suite : string * unit Alcotest.test_case list
(** [suite] checks a filtered/ordered scan, an inner join, a recursive CTE, a
    compound [UNION], that an unknown column fails loud, and single-use CTE
    flattening: which shapes are spliced into their reader and which keep the
    CTE materialised. *)