ast-project/part1/results/2/bug_ec2a073a-7df4-421e-b9d6-71f0982d243b_logic.md

Summary

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Minimized query

SAVEPOINT sp2435;
SAVEPOINT sp2550;
CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c INT, d INT);
INSERT INTO t1 VALUES (1, 'Wernher', 10, 100);
INSERT INTO t1 VALUES (2, 'von', 20, 200);
INSERT INTO t1 VALUES (3, 'Braun', 30, 300);

CREATE INDEX t1bc ON t1(b, c);

PRAGMA writable_schema = ON;

.imposter t1bc t2

SELECT * FROM t2;

SELECT b, c FROM t1 ORDER BY b, c;

.quit
CREATE TABLE main.T (
  a INTEGER,
  b TEXT,
  c INTEGER
);
INSERT INTO T VALUES (-(-(ifnull(x'0a61e433b2ab715e25765c', 2))),'a',NULL), (2,'b',1), (3,'c',2);
WITH RECURSIVE d(a,b,c,e) AS (
  SELECT *,1 FROM T WHERE c IS NULL
  UNION ALL
  SELECT T.a,T.b,T.c,d.e+1
  FROM T JOIN d ON T.c=d.a
)
SELECT * FROM d;
DELETE FROM T WHERE b IS NULL RETURNING *;
SELECT * FROM T;
DROP TABLE IF EXISTS T;
ROLLBACK TRANSACTION TO SAVEPOINT sp2550;
RELEASE SAVEPOINT sp2550;
RELEASE sp2435;
WITH cte AS (SELECT NULL AS x, NULL AS y) SELECT x, y, x IS NULL FROM cte;
CREATE TABLE T (
  a INTEGER,
  b TEXT,
  c INTEGER
);
INSERT INTO T VALUES (1,'a',NULL), (2,'b',1), (3,'c',2);
WITH RECURSIVE d(a,b,c,e) AS (
  SELECT *,1 FROM T WHERE c IS NULL
  UNION ALL
  SELECT T.a,T.b,T.c,d.e+1
  FROM T JOIN d ON T.c=d.a
)
SELECT * FROM d;
SELECT COUNT(*) FILTER (WHERE a IS NOT NULL), SUM(rowid) FILTER (WHERE a > 0), COUNT(*) FILTER (WHERE 1=0), COUNT(*) FILTER (WHERE 1=1), COUNT(*) FILTER (WHERE NULL), AVG(a) FILTER (WHERE a > 0 AND a < 100), COUNT(*) FILTER (WHERE typeof(a) = "text") FROM T;
ANALYZE T;

Actual output

CREATE TABLE "t2"("b","c","_ROWID_",PRIMARY KEY("b","c","_ROWID_"))WITHOUT ROWID;
WARNING: writing to an imposter table will corrupt the "t1bc" index!
Braun|30|3
Wernher|10|1
von|20|2
Braun|30
Wernher|10
von|20

Expectation

CREATE TABLE "t2"("b","c","_ROWID_",PRIMARY KEY("b","c","_ROWID_"))WITHOUT ROWID;
Braun|30|3
Wernher|10|1
von|20|2
Braun|30
Wernher|10
von|20

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