partial support for lateral
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5 changed files with 36 additions and 8 deletions
tools/Language/SQL/SimpleSQL
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@ -51,7 +51,7 @@ queries section
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> ,"SELECT * FROM people AS mother JOIN people AS child ON mother.id = child.mother_id;"
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> ,"SELECT * FROM my_table AS a CROSS JOIN my_table AS b;"
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> ,"SELECT * FROM (my_table AS a CROSS JOIN my_table) AS b;"
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> ,"SELECT * FROM getfoo(1) AS t1;" -- function tableref
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> ,"SELECT * FROM getfoo(1) AS t1;"
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> ,"SELECT * FROM foo\n\
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> \ WHERE foosubid IN (\n\
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> \ SELECT foosubid\n\
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@ -63,23 +63,23 @@ queries section
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> \ AS t1(proname name, prosrc text)\n\
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> \ WHERE proname LIKE 'bytea%';"-} -- types in the alias??
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> --,"SELECT * FROM foo, LATERAL (SELECT * FROM bar WHERE bar.id = foo.bar_id) ss;" -- lateral
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> ,"SELECT * FROM foo, LATERAL (SELECT * FROM bar WHERE bar.id = foo.bar_id) ss;" -- lateral
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> ,"SELECT * FROM foo, bar WHERE bar.id = foo.bar_id;"
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> {-,"SELECT p1.id, p2.id, v1, v2\n\
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> \FROM polygons p1, polygons p2,\n\
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> \ LATERAL vertices(p1.poly) v1,\n\
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> \ LATERAL vertices(p2.poly) v2\n\
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> \WHERE (v1 <-> v2) < 10 AND p1.id != p2.id;"-} -- <-> operator?, lateral
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> \WHERE (v1 <-> v2) < 10 AND p1.id != p2.id;"-} -- <-> operator?
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> {-,"SELECT p1.id, p2.id, v1, v2\n\
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> \FROM polygons p1 CROSS JOIN LATERAL vertices(p1.poly) v1,\n\
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> \ polygons p2 CROSS JOIN LATERAL vertices(p2.poly) v2\n\
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> \WHERE (v1 <-> v2) < 10 AND p1.id != p2.id;"-}
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> {-,"SELECT m.name\n\
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> ,"SELECT m.name\n\
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> \FROM manufacturers m LEFT JOIN LATERAL get_product_names(m.id) pname ON true\n\
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> \WHERE pname IS NULL;"-} -- lateral, function ref
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> \WHERE pname IS NULL;"
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> ,"SELECT * FROM fdt WHERE c1 > 5"
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@ -253,11 +253,11 @@ select page reference
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> \ )\n\
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> \SELECT distance, employee_name FROM employee_recursive;"-} -- with recursive, full cte alias
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> {-,"SELECT m.name AS mname, pname\n\
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> ,"SELECT m.name AS mname, pname\n\
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> \FROM manufacturers m, LATERAL get_product_names(m.id) pname;"
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> ,"SELECT m.name AS mname, pname\n\
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> \FROM manufacturers m LEFT JOIN LATERAL get_product_names(m.id) pname ON true;"-} -- lateral
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> \FROM manufacturers m LEFT JOIN LATERAL get_product_names(m.id) pname ON true;"
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> ,"SELECT 2+2;"
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@ -19,6 +19,30 @@ expression
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> ,("select a from t,u"
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> ,ms [TRSimple "t", TRSimple "u"])
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these lateral queries make no sense but the syntax is valid
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> ,("select a from lateral a"
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> ,ms [TRLateral $ TRSimple "a"])
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> ,("select a from lateral a,b"
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> ,ms [TRLateral $ TRSimple "a", TRSimple "b"])
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> -- not sure what the problem is
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> --,("select from a, lateral b"
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> -- ,ms [TRSimple "a", TRLateral $ TRSimple "b"])
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> ,("select a from a natural join lateral b"
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> ,ms [TRJoin (TRSimple "a") JInner
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> (TRLateral $ TRSimple "b")
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> (Just JoinNatural)])
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> -- the lateral binds on the outside of the join which is incorrect
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> --,("select a from lateral a natural join lateral b"
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> -- ,ms [TRJoin (TRLateral $ TRSimple "a") JInner
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> -- (TRLateral $ TRSimple "b")
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> -- (Just JoinNatural)])
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> ,("select a from t inner join u on expr"
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> ,ms [TRJoin (TRSimple "t") JInner (TRSimple "u")
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> (Just $ JoinOn $ Iden "expr")])
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