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2026-06-24 13:47:14 +02:00
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+## Summary
+<!--Explain briefly what goes wrong and explain why you believe this is a bug and not the intended behavior of SQLite (if it is not a crash).-->**No review yet**
+
+## Minimized query
+
+```sql
+CREATE TEMPORARY TABLE t0(x, y, z);
+SELECT -if(0.0, 99999999999999999999999999999999999999999999999999, 99999999999999999999999999999999999999999999999999);
+SELECT * FROM sqlite_temp_master WHERE sql GLOB '000[]***';
+DROP TABLE t0;
+PRAGMA trusted_schema = 9223372036854775806;
+.log stderr
+CREATE TABLE main.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
+ATTACH DATABASE ':memory:' AS aux86;
+CREATE TABLE T (
+  a INTEGER,
+  b TEXT,
+  c INTEGER
+);
+INSERT INTO T VALUES (soundex('123'),'a',NULL), (2,'b',1), (3,'c',2);
+WITH RECURSIVE d(a,b,c,e) AS (
+  SELECT *,1 FROM T WHERE NOT 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;
+BEGIN;
+PRAGMA mmap_size;
+PRAGMA fullsync = OFF;
+PRAGMA freelist_count;
+PRAGMA cache_spill = TRUE;
+.backup main output.db
+CREATE TABLE T1 (
+  A VARCHAR(-9223372036854775809),
+  X VARCHAR(10),
+  PRIMARY KEY (A, X),
+  UNIQUE (X)
+);
+CREATE TABLE T2 (
+  A VARCHAR(20),
+  Y VARCHAR(10) UNIQUE,
+  PRIMARY KEY (A, Y)
+);
+INSERT INTO T1 VALUES ('a', 'm');
+INSERT INTO T1 VALUES ('b', 'n');
+INSERT INTO T2 VALUES ('b', 'k');
+SELECT A FROM T1 UNION ALL SELECT A FROM T2 ORDER BY A;
+INSERT INTO T2 VALUES (NULL, NULL);
+REINDEX;
+
+SELECT COUNT(*) FROM T1;
+END TRANSACTION;
+WITH RECURSIVE r AS (SELECT X FROM T1 WHERE X IS NOT NULL UNION ALL SELECT X FROM r WHERE X > 0 LIMIT 10) SELECT * FROM r;
+SELECT LAG(X, X) OVER (ORDER BY X ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM T1;
+CREATE TRIGGER IF NOT EXISTS trg_T2_4613 BEFORE DELETE ON T2 FOR EACH ROW BEGIN SELECT RAISE(ROLLBACK, 'rb'); END;
+
+WITH a AS (SELECT * FROM T2), RECURSIVE cnt(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM cnt WHERE x<49) SELECT * FROM a CROSS JOIN cnt;
+DETACH DATABASE aux86;
+ALTER TABLE T1 ADD COLUMN extra_8201 INT8 DEFAULT 0;
+ALTER TABLE T2 RENAME TO T2_r8773;
+REINDEX T1;
+DELETE FROM t1 WHERE rowid = 31 RETURNING *;
+WITH cte AS (SELECT CASE WHEN c > 0 THEN "pos" ELSE "neg" END AS sign FROM T) SELECT * FROM cte;
+CREATE UNIQUE  INDEX IF NOT EXISTS idx_t1_5738 ON t1(lower(d)) WHERE d IS NOT NULL;
+SELECT * FROM T1;
+
+SELECT COUNT(*) FROM t1;
+WITH cte(x) AS (SELECT A FROM T2) SELECT x FROM cte;
+INSERT OR IGNORE INTO T2 VALUES (-9, '');
+CREATE  VIEW IF NOT EXISTS v_T_2236 AS SELECT b FROM T;
+DELETE FROM T WHERE 0 RETURNING *;
+SELECT COUNT(*) FILTER (WHERE Y IS NOT NULL), SUM(rowid) FILTER (WHERE Y > 0), COUNT(*) FILTER (WHERE 1=0), COUNT(*) FILTER (WHERE 1=1), COUNT(*) FILTER (WHERE NULL), AVG(Y) FILTER (WHERE Y > 0 AND Y < 100), COUNT(*) FILTER (WHERE typeof(Y) = "text") FROM T2;
+INSERT INTO t0 DEFAULT VALUES;
+
+SELECT COUNT(*) FROM T2;
+PRAGMA case_sensitive_like = 0;
+CREATE TRIGGER IF NOT EXISTS trg_T1_4296 BEFORE UPDATE OF X ON T1 BEGIN SELECT RAISE(ROLLBACK, 'rb'); END;
+```
+
+## Actual output
+
+```sql
+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
+
+```sql
+
+```
+
+## Flag
+
+```
+
+```
+