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# name: test/sql/cte/test_fib_complex.test_slow
# description: Very complex recursive CTE with several corner cases
# group: [cte]
statement ok
PRAGMA enable_verification;
query IIIIIIIII
SELECT "input".*,
"result".*
FROM (SELECT i FROM generate_series(2,3) AS _(i)) AS "input"("n"),
LATERAL (WITH RECURSIVE
"loop"(".iteration", ".mark", ".thread.this", ".label.this", ".thread.parent", ".label.parent", "fib.n", "fib.result.0") AS (
(SELECT CAST((0) AS INT) AS ".iteration",
CAST((0) AS INT) AS ".mark",
CAST((0) AS INT) AS ".thread.this",
'fib' AS ".label.this",
CAST((NULL) AS INT) AS ".thread.parent",
CAST((NULL) AS TEXT) AS ".label.parent",
CAST(("input"."n") AS int) AS "fib.n",
CAST((NULL) AS int) AS "fib.result.0"
)
UNION ALL
(WITH
"fib.assignment.1"(".iteration", ".mark", ".thread.this", ".label.parent", "k", "n") AS (
SELECT "input".".iteration",
"input".".mark",
"input".".thread.this",
"input".".label.parent",
CAST(("input"."fib.n" <= 1) AS bool) AS "k",
"input"."fib.n"
FROM "loop" AS "input"
WHERE "input".".label.this" IS NOT DISTINCT FROM 'fib'
),
"fib.call.1.prepare"(".iteration", ".mark", ".thread.this", ".label.this", ".thread.parent", ".label.parent", "argument.0") AS (
SELECT "input".".iteration",
"input".".mark",
(SELECT COALESCE(MAX("loop".".thread.this"), 0)
FROM "loop"
WHERE ("loop".".label.parent" IS NOT DISTINCT FROM "input".".label.parent" OR
"loop".".label.this" IS NOT DISTINCT FROM 'fib.call.1')) + ROW_NUMBER() OVER (ORDER BY "fork"."n" DESC) AS ".thread.this",
'fib.call.1' AS ".label.this",
"input".".thread.this" AS ".thread.parent",
"input".".label.parent",
CAST(("fork"."n") AS int) AS "argument.0"
FROM "loop" AS "input",
LATERAL (SELECT "input"."fib.n" - i FROM generate_series(1,2) AS _(i)) AS "fork"("n")
WHERE "input".".label.this" IS NOT DISTINCT FROM 'fib.mark.1'
),
"fib.wait.1.decide"(".iteration", ".mark", ".thread.this", ".label.parent", ".done", "n") AS (
SELECT "input".".iteration",
MIN("input".".mark") OVER (
PARTITION BY "input".".iteration",
"input".".thread.this"
ROWS BETWEEN UNBOUNDED PRECEDING
AND UNBOUNDED FOLLOWING
) AS ".mark",
"input".".thread.this",
"input".".label.parent",
NOT EXISTS(SELECT 1 AS "dummy"
FROM "loop"
WHERE "loop".".mark" > "input".".mark"
AND ("loop".".thread.this" IS NOT DISTINCT FROM "input".".thread.this" OR
"loop".".thread.parent" IS NOT DISTINCT FROM "input".".thread.this"))
AS ".done",
"input"."n"
FROM ((SELECT "input".".iteration",
"input".".mark" - 1 AS ".mark",
"input".".thread.parent",
"input".".label.parent",
"return"."fib.result.0"
FROM "loop" AS "input", "loop" AS "return"
WHERE "input".".label.this" IS NOT DISTINCT FROM 'fib.call.1'
AND "return".".label.this" IS NULL
AND "return".".label.parent" IS NOT DISTINCT FROM 'fib.call.1'
AND "return".".thread.this" IS NOT DISTINCT FROM "input".".thread.this")
UNION ALL
(SELECT "input".".iteration",
"input".".mark",
"input".".thread.this",
"input".".label.parent",
"input"."fib.n"
FROM "loop" AS "input"
WHERE "input".".label.this" IS NOT DISTINCT FROM 'fib.wait.1')) AS "input"(".iteration", ".mark", ".thread.this", ".label.parent", "n")
)
(SELECT "input".".iteration" + 1,
"input".".mark" + 1,
"input".".thread.this",
'fib.mark.1' AS ".label.this",
CAST((NULL) AS int),
"input".".label.parent",
"input"."n" AS "fib.n",
CAST((NULL) AS int) AS "fib.result.0"
FROM "fib.assignment.1" AS "input"
WHERE NOT "input"."k")
UNION ALL
(SELECT "sink".".iteration" + 1,
"sink".".mark",
"sink".".thread.this",
"sink".".label.this",
"sink".".thread.parent",
"sink".".label.parent",
CAST((NULL) AS int) AS "fib.n",
CAST((NULL) AS int) AS "fib.result.0"
FROM "fib.call.1.prepare" AS "sink")
UNION ALL
(SELECT "input".".iteration" + 1,
"input".".mark",
"input".".thread.this",
"input".".label.this",
"input".".thread.parent",
"input".".label.parent",
CAST((NULL) AS int) AS "fib.n",
CAST((NULL) AS int) AS "fib.result.0"
FROM "loop" AS "input"
WHERE "input".".label.this" IS NOT DISTINCT FROM 'fib.call.1'
AND EXISTS(SELECT 1 AS "dummy"
FROM "loop"
WHERE "loop".".label.this" IS NOT NULL
AND "loop".".label.parent" IS NOT DISTINCT FROM 'fib.call.1'
AND ("loop".".thread.this" IS NOT DISTINCT FROM "input".".thread.this" AND
"loop".".thread.parent" IS NULL OR
"loop".".thread.parent" IS NOT DISTINCT FROM "input".".thread.this")))
UNION ALL
(SELECT "input".".iteration" + 1,
"input".".mark",
"input".".thread.this",
'fib.wait.1' AS ".label.this",
CAST((NULL) AS int),
"input".".label.parent",
"input"."n" AS "fib.n",
CAST((NULL) AS int) AS "fib.result.0"
FROM "fib.wait.1.decide" AS "input"
WHERE NOT "input".".done")
UNION ALL
(SELECT "input".".iteration" + 1,
"input".".mark",
"input".".thread.this",
CAST((NULL) AS TEXT) AS ".label.this",
CAST((NULL) AS INT) AS ".thread.parent",
"input".".label.parent",
CAST((NULL) AS int) AS "fib.n",
CAST(("input"."n") AS int)
FROM "fib.assignment.1" AS "input"
WHERE "input"."k")
UNION ALL
(SELECT "key".".iteration" + 1,
"key".".mark",
"key".".thread.this",
CAST((NULL) AS TEXT) AS ".label.this",
CAST((NULL) AS INT) AS ".thread.parent",
"key".".label.parent",
CAST((NULL) AS int) AS "fib.n",
CAST(("aggregate"."n") AS int)
FROM (SELECT MIN("key".".mark") AS ".mark",
"key".".iteration",
"key".".thread.this",
"key".".label.parent"
FROM "fib.wait.1.decide" AS "key"
WHERE "key".".done"
GROUP BY "key".".iteration",
"key".".thread.this",
"key".".label.parent"
) AS "key"(".mark", ".iteration", ".thread.this", ".label.parent"),
LATERAL (SELECT SUM(CAST(("input"."n") AS INT))
FROM "fib.wait.1.decide" AS "input"
WHERE "input".".done"
AND "key".".iteration" IS NOT DISTINCT FROM "input".".iteration"
AND "key".".thread.this" IS NOT DISTINCT FROM "input".".thread.this"
AND "key".".label.parent" IS NOT DISTINCT FROM "input".".label.parent") AS "aggregate"("n")
WHERE "key".".mark" IS NOT NULL)
UNION ALL
(SELECT "input".".iteration" + 1,
"input".".mark",
"input".".thread.this",
'fib' AS ".label.this",
"input".".thread.this" AS ".thread.parent",
'fib.call.1' AS ".label.parent",
"input"."argument.0" AS "fib.n",
CAST((NULL) AS int) AS "fib.result.0"
FROM "fib.call.1.prepare" AS "input"))
)
TABLE loop) AS "result"
ORDER BY ALL
----
2 0 0 0 fib NULL NULL 2 NULL
2 1 1 0 fib.mark.1 NULL NULL 2 NULL
2 2 1 1 fib 1 fib.call.1 1 NULL
2 2 1 1 fib.call.1 0 NULL NULL NULL
2 2 1 2 fib 2 fib.call.1 0 NULL
2 2 1 2 fib.call.1 0 NULL NULL NULL
2 3 1 1 fib.call.1 0 NULL NULL NULL
2 3 1 1 NULL NULL fib.call.1 NULL 1
2 3 1 2 fib.call.1 0 NULL NULL NULL
2 3 1 2 NULL NULL fib.call.1 NULL 0
2 4 0 0 fib.wait.1 NULL NULL 0 NULL
2 4 0 0 fib.wait.1 NULL NULL 1 NULL
2 5 0 0 NULL NULL NULL NULL 1
3 0 0 0 fib NULL NULL 3 NULL
3 1 1 0 fib.mark.1 NULL NULL 3 NULL
3 2 1 1 fib 1 fib.call.1 2 NULL
3 2 1 1 fib.call.1 0 NULL NULL NULL
3 2 1 2 fib 2 fib.call.1 1 NULL
3 2 1 2 fib.call.1 0 NULL NULL NULL
3 3 1 1 fib.call.1 0 NULL NULL NULL
3 3 1 2 fib.call.1 0 NULL NULL NULL
3 3 1 2 NULL NULL fib.call.1 NULL 1
3 3 2 1 fib.mark.1 NULL fib.call.1 2 NULL
3 4 0 0 fib.wait.1 NULL NULL 1 NULL
3 4 1 1 fib.call.1 0 NULL NULL NULL
3 4 2 3 fib 3 fib.call.1 1 NULL
3 4 2 3 fib.call.1 1 fib.call.1 NULL NULL
3 4 2 4 fib 4 fib.call.1 0 NULL
3 4 2 4 fib.call.1 1 fib.call.1 NULL NULL
3 5 0 0 fib.wait.1 NULL NULL 1 NULL
3 5 1 1 fib.call.1 0 NULL NULL NULL
3 5 2 3 fib.call.1 1 fib.call.1 NULL NULL
3 5 2 3 NULL NULL fib.call.1 NULL 1
3 5 2 4 fib.call.1 1 fib.call.1 NULL NULL
3 5 2 4 NULL NULL fib.call.1 NULL 0
3 6 0 0 fib.wait.1 NULL NULL 1 NULL
3 6 1 1 fib.call.1 0 NULL NULL NULL
3 6 1 1 fib.wait.1 NULL fib.call.1 0 NULL
3 6 1 1 fib.wait.1 NULL fib.call.1 1 NULL
3 7 0 0 fib.wait.1 NULL NULL 1 NULL
3 7 1 1 fib.call.1 0 NULL NULL NULL
3 7 1 1 NULL NULL fib.call.1 NULL 1
3 8 0 0 fib.wait.1 NULL NULL 1 NULL
3 8 0 0 fib.wait.1 NULL NULL 1 NULL
3 9 0 0 NULL NULL NULL NULL 2
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