14 KiB
14 KiB
Summary
**No review yet**Minimized query
CREATE TEMPORARY TABLE t0(x, y, z);
SELECT -99999999999999999999999999999999999999999999999999;
SELECT * FROM sqlite_temp_master WHERE sql GLOB '000[]***';
DROP TABLE t0;
PRAGMA checkpoint_fullsync = YES;
PRAGMA recursive_triggers = ON;
PRAGMA defer_foreign_keys = OFF;
.stats
CREATE TABLE main.t1(a, b TEXT);
CREATE UNIQUE INDEX IF NOT EXISTS x1 ON t1(b==log((-(-(-ifnull(('{' || ''), 'fallback'))) * (2.718281828459045 * 1)), 0));
CREATE INDEX IF NOT EXISTS x2 ON t1(a || 0) WHERE NOT b;
INSERT INTO t1(a,b) VALUES('a',1),('a',0);
SELECT a, b, '|' FROM t1;
DROP INDEX IF EXISTS t1;
WITH m AS MATERIALIZED (SELECT a FROM t1) SELECT * FROM m;
UPDATE t1 SET a = CURRENT_TIMESTAMP WHERE a BETWEEN 0 AND 100 RETURNING *;
SELECT LAG(a, 0) OVER (PARTITION BY a ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t1;
SELECT MAX(a) FROM t1;
SELECT * FROM t1;
VACUUM main;
SELECT * FROM t1 WHERE b IN (SELECT b FROM t1 LIMIT 0);
ALTER TABLE t1 RENAME TO t1_r2082;
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
VACUUM main;
ALTER TABLE t1 DROP COLUMN a;
ALTER TABLE t1 ADD COLUMN extra_4108 BIGINT;
DELETE FROM t1 WHERE rowid = 7;
.stats
CREATE TABLE main.t1(a, b TEXT);
CREATE UNIQUE INDEX IF NOT EXISTS x1 ON t1(b==log((-(-(-ifnull('{', 'fallback'))) * 1), 0));
CREATE INDEX IF NOT EXISTS x2 ON t1(a || 0) WHERE b;
INSERT INTO t1(a,b) VALUES('a',1),('a',0);
SELECT a, b, '|' FROM t1;
DROP INDEX IF EXISTS t1;
WITH m AS MATERIALIZED (SELECT a FROM t1) SELECT * FROM m;
UPDATE t1 SET a = CURRENT_TIMESTAMP WHERE a BETWEEN 0 AND 100 RETURNING *;
SELECT LAG(a, 0) OVER (PARTITION BY a ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t1;
SELECT MAX(a) FROM t1;
SELECT * FROM t1;
VACUUM main;
SELECT * FROM t1 WHERE b IN (SELECT b FROM t1 LIMIT 0);
ALTER TABLE t1 RENAME TO t1_r2082;
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
VACUUM main;
ALTER TABLE t1 DROP COLUMN a;
ALTER TABLE t1 ADD COLUMN extra_4108 BIGINT;
DELETE FROM t1 WHERE rowid = 7;
.stats
CREATE TABLE main.t1(a, b TEXT);
CREATE UNIQUE INDEX IF NOT EXISTS x1 ON t1(b==log((-(-(-ifnull('{', 'fallback'))) * 1), 0));
CREATE INDEX IF NOT EXISTS x2 ON t1(a || 0) WHERE b;
INSERT INTO t1(a,b) VALUES('a',1),('a',0);
SELECT a, b, '|' FROM t1;
DROP INDEX IF EXISTS t1;
WITH m AS MATERIALIZED (SELECT a FROM t1) SELECT * FROM m;
UPDATE t1 SET a = CURRENT_TIMESTAMP WHERE a BETWEEN 0 AND 100 RETURNING *;
SELECT LAG(a, 0) OVER (PARTITION BY a ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t1;
SELECT MAX(a) FROM t1;
SELECT * FROM t1;
VACUUM main;
SELECT * FROM t1 WHERE b IN (SELECT b FROM t1 LIMIT 0);
ALTER TABLE t1 RENAME TO t1_r2082;
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
VACUUM main;
ALTER TABLE t1 DROP COLUMN a;
ALTER TABLE t1 ADD COLUMN extra_4108 BIGINT;
DELETE FROM t1 WHERE rowid = 7;
.stats
CREATE TABLE main.t1(a, b TEXT);
CREATE UNIQUE INDEX IF NOT EXISTS x1 ON t1(b==log((-(-(-ifnull('{', 'fallback'))) * 1), 0));
CREATE INDEX IF NOT EXISTS x2 ON t1(a || 0) WHERE b;
INSERT INTO t1(a,b) VALUES('a',1),('a',0);
SELECT a, b, '|' FROM t1;
DROP INDEX IF EXISTS t1;
WITH m AS MATERIALIZED (SELECT a FROM t1) SELECT * FROM m;
UPDATE t1 SET a = CURRENT_TIMESTAMP WHERE a BETWEEN 0 AND 100 RETURNING *;
SELECT LAG(a, 0) OVER (PARTITION BY a ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t1;
SELECT MAX(a) FROM t1;
SELECT * FROM t1;
VACUUM main;
SELECT * FROM t1 WHERE b IN (SELECT b FROM t1 LIMIT 0);
ALTER TABLE t1 RENAME TO t1_r2082;
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
VACUUM main;
ALTER TABLE t1 DROP COLUMN a;
ALTER TABLE t1 ADD COLUMN extra_4108 BIGINT;
DELETE FROM t1 WHERE rowid = 7;
.stats
CREATE TABLE main.t1(a, b TEXT);
CREATE UNIQUE INDEX IF NOT EXISTS x1 ON t1(b==log((-(-(-ifnull('{', 'fallback'))) * 1), 0));
CREATE INDEX IF NOT EXISTS x2 ON t1(a || 0) WHERE b;
INSERT INTO t1(a,b) VALUES('a',1),('a',0);
SELECT a, b, '|' FROM t1;
DROP INDEX IF EXISTS t1;
WITH m AS MATERIALIZED (SELECT a FROM t1) SELECT * FROM m;
UPDATE t1 SET a = CURRENT_TIMESTAMP WHERE a BETWEEN 0 AND 100 RETURNING *;
SELECT LAG(a, 0) OVER (PARTITION BY a ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t1;
SELECT MAX(a) FROM t1;
SELECT * FROM t1;
VACUUM main;
SELECT * FROM t1 WHERE b IN (SELECT b FROM t1 LIMIT 0);
ALTER TABLE t1 RENAME TO t1_r2082;
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
VACUUM main;
ALTER TABLE t1 DROP COLUMN a;
ALTER TABLE t1 ADD COLUMN extra_4108 BIGINT;
DELETE FROM t1 WHERE rowid = 7;
.stats
CREATE TABLE main.t1(a, b TEXT);
CREATE UNIQUE INDEX IF NOT EXISTS x1 ON t1(b==log((-(-(-ifnull('{', 'fallback'))) * 1), 0));
CREATE INDEX IF NOT EXISTS x2 ON t1(a || 0) WHERE b;
INSERT INTO t1(a,b) VALUES('a',1),('a',0);
SELECT a, b, '|' FROM t1;
DROP INDEX IF EXISTS t1;
WITH m AS MATERIALIZED (SELECT a FROM t1) SELECT * FROM m;
UPDATE t1 SET a = CURRENT_TIMESTAMP WHERE a BETWEEN 0 AND 100 RETURNING *;
SELECT LAG(a, 0) OVER (PARTITION BY a ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t1;
SELECT MAX(a) FROM t1;
SELECT * FROM t1;
VACUUM main;
SELECT * FROM t1 WHERE b IN (SELECT b FROM t1 LIMIT 0);
ALTER TABLE t1 RENAME TO t1_r2082;
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
VACUUM main;
ALTER TABLE t1 DROP COLUMN a;
ALTER TABLE t1 ADD COLUMN extra_4108 BIGINT;
DELETE FROM t1 WHERE rowid = 7;
.stats
CREATE TABLE main.t1(a, b TEXT);
CREATE UNIQUE INDEX IF NOT EXISTS x1 ON t1(b==log((-(-(-ifnull('{', 'fallback'))) * 1), 0));
CREATE INDEX IF NOT EXISTS x2 ON t1(a || 0) WHERE b;
INSERT INTO t1(a,b) VALUES('a',1),('a',0);
SELECT a, b, '|' FROM t1;
DROP INDEX IF EXISTS t1;
WITH m AS MATERIALIZED (SELECT a FROM t1) SELECT * FROM m;
UPDATE t1 SET a = CURRENT_TIMESTAMP WHERE a BETWEEN 0 AND 100 RETURNING *;
SELECT LAG(a, 0) OVER (PARTITION BY a ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t1;
SELECT MAX(a) FROM t1;
SELECT * FROM t1;
VACUUM main;
SELECT * FROM t1 WHERE b IN (SELECT b FROM t1 LIMIT 0);
ALTER TABLE t1 RENAME TO t1_r2082;
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
VACUUM main;
ALTER TABLE t1 DROP COLUMN a;
ALTER TABLE t1 ADD COLUMN extra_4108 BIGINT;
DELETE FROM t1 WHERE rowid = 7;
.stats
CREATE TABLE main.t1(a, b TEXT);
CREATE UNIQUE INDEX IF NOT EXISTS x1 ON t1(b==log((-(-(-ifnull('{', 'fallback'))) * 1), 0));
CREATE INDEX IF NOT EXISTS x2 ON t1(a || 0) WHERE b;
INSERT INTO t1(a,b) VALUES('a',1),('a',0);
SELECT a, b, '|' FROM t1;
DROP INDEX IF EXISTS t1;
WITH m AS MATERIALIZED (SELECT a FROM t1) SELECT * FROM m;
UPDATE t1 SET a = CURRENT_TIMESTAMP WHERE a BETWEEN 0 AND 100 RETURNING *;
SELECT LAG(a, 0) OVER (PARTITION BY a ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t1;
SELECT MAX(a) FROM t1;
SELECT * FROM t1;
VACUUM main;
SELECT * FROM t1 WHERE b IN (SELECT b FROM t1 LIMIT 0);
ALTER TABLE t1 RENAME TO t1_r2082;
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
VACUUM main;
ALTER TABLE t1 DROP COLUMN a;
ALTER TABLE t1 ADD COLUMN extra_4108 BIGINT;
DELETE FROM t1 WHERE rowid = 7;
.stats
CREATE TABLE main.t1(a, b TEXT);
CREATE UNIQUE INDEX IF NOT EXISTS x1 ON t1(b==log((-(-(-ifnull('{', 'fallback'))) * 1), 0));
CREATE INDEX IF NOT EXISTS x2 ON t1(a || 0) WHERE b;
INSERT INTO t1(a,b) VALUES('a',1),('a',0);
SELECT a, b, '|' FROM t1;
DROP INDEX IF EXISTS t1;
WITH m AS MATERIALIZED (SELECT a FROM t1) SELECT * FROM m;
UPDATE t1 SET a = CURRENT_TIMESTAMP WHERE a BETWEEN 0 AND 100 RETURNING *;
SELECT LAG(a, 0) OVER (PARTITION BY a ORDER BY a ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM t1;
SELECT MAX(a) FROM t1;
SELECT * FROM t1;
VACUUM main;
SELECT * FROM t1 WHERE b IN (SELECT b FROM t1 LIMIT 0);
ALTER TABLE t1 RENAME TO t1_r2082;
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
VACUUM main;
ALTER TABLE t1 DROP COLUMN a;
ALTER TABLE t1 ADD COLUMN extra_4108 BIGINT;
DELETE FROM t1 WHERE rowid = 7;
INSERT INTO t1 SELECT * FROM t1;
ALTER TABLE t1 ADD COLUMN extra_4216 NONE DEFAULT 0;
VACUUM;
UPDATE t1 SET c = '' WHERE 1;
DELETE FROM t1 WHERE 0;
CREATE TABLE T (
a INTEGER,
b REAL,
c REAL
);
INSERT INTO T VALUES (1,1.5,10.0), (2,-2.5,20.0), (3,-9e999,30.0);
SELECT * FROM T WHERE b < 2.0 ORDER BY b;
ALTER TABLE T DROP COLUMN b;
CREATE TEMPORARY VIEW IF NOT EXISTS v_T_2095 AS SELECT b FROM T;
ALTER TABLE t1 DROP COLUMN a;
CREATE TEMPORARY VIEW IF NOT EXISTS v_T_458 AS SELECT c FROM T;
DROP VIEW IF /**/ EXISTS t1;
ALTER TABLE t1 DROP COLUMN a;
CREATE TEMP VIEW IF NOT EXISTS v_t1_5034 AS SELECT b FROM t1;
VACUUM;
ALTER TABLE t1 RENAME COLUMN d TO d_r911;
ALTER TABLE T RENAME COLUMN a TO a_r4086;
WITH RECURSIVE tree(id, parent, depth) AS (VALUES(1, NULL, 0) UNION ALL SELECT id+1, id, depth+1 FROM tree WHERE depth<49) SELECT * FROM tree;
INSERT INTO t1 VALUES (1, NULL, 1, 'x') ON CONFLICT(a) DO UPDATE SET a = excluded.a, b = excluded.b, c = excluded.c;
ALTER TABLE T ADD COLUMN extra_5333 UNSIGNED BIG INT DEFAULT CURRENT_TIMESTAMP;
SELECT COUNT(*) FILTER (WHERE d IS NOT NULL), SUM(rowid) FILTER (WHERE d > 0), COUNT(*) FILTER (WHERE 1=0), COUNT(*) FILTER (WHERE 1=1), COUNT(*) FILTER (WHERE NULL), AVG(d) FILTER (WHERE d > 0 AND d < 100), COUNT(*) FILTER (WHERE typeof(d) = "text") FROM t1;
Actual output
-1.0e+50
Memory Used: 166384 (max 333760) bytes
Number of Outstanding Allocations: 150 (max 183)
Number of Pcache Overflow Bytes: 16672 (max 24880) bytes
Largest Allocation: 87200 bytes
Largest Pcache Allocation: 4360 bytes
Lookaside Slots Used: 32 (max 88)
Successful lookaside attempts: 261
Lookaside failures due to size: 1
Lookaside failures due to OOM: 0
Pager Heap Usage: 22808 bytes
Page cache hits: 10
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Schema Heap Usage: 760 bytes
Statement Heap/Lookaside Usage: 0 bytes
Bytes received by read(): 10665
Bytes sent to write(): 9
Read() system calls: 14
Write() system calls: 1
Bytes read from storage: 0
Bytes written to storage: 0
Cancelled write bytes: 0
a|1||
a|0||
a
a
a
a
a
a|1
a|0
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
-1.0e+50
Memory Used: 167208 (max 334656) bytes
Number of Outstanding Allocations: 160 (max 193)
Number of Pcache Overflow Bytes: 16672 (max 24872) bytes
Largest Allocation: 87360 bytes
Largest Pcache Allocation: 4368 bytes
Lookaside Slots Used: 48 (max 97)
Successful lookaside attempts: 257
Lookaside failures due to size: 1
Lookaside failures due to OOM: 0
Pager Heap Usage: 22840 bytes
Page cache hits: 10
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Temporary data spilled to disk: 0
Schema Heap Usage: 640 bytes
Statement Heap/Lookaside Usage: 0 bytes
Bytes received by read(): 11229
Bytes sent to write(): 9
Read() system calls: 15
Write() system calls: 1
Bytes read from storage: 0
Bytes written to storage: 0
Cancelled write bytes: 0
a|1||
a|0||
a
a
a
a
a
a|1
a|0
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
Flag
-noheader