13 KiB
13 KiB
Summary
**No review yet**Minimized query
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;
Actual output
Memory Used: 62592 (max 62592) bytes
Number of Outstanding Allocations: 122 (max 122)
Number of Pcache Overflow Bytes: 4104 (max 4104) bytes
Largest Allocation: 48000 bytes
Largest Pcache Allocation: 4104 bytes
Lookaside Slots Used: 32 (max 36)
Successful lookaside attempts: 42
Lookaside failures due to size: 0
Lookaside failures due to OOM: 0
Pager Heap Usage: 4904 bytes
Page cache hits: 0
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Schema Heap Usage: 0 bytes
Statement Heap/Lookaside Usage: 0 bytes
Bytes received by read(): 10409
Bytes sent to write(): 0
Read() system calls: 13
Write() system calls: 0
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
Memory Used: 63416 (max 63416) bytes
Number of Outstanding Allocations: 132 (max 132)
Number of Pcache Overflow Bytes: 4104 (max 4104) bytes
Largest Allocation: 48000 bytes
Largest Pcache Allocation: 4104 bytes
Lookaside Slots Used: 48 (max 52)
Successful lookaside attempts: 58
Lookaside failures due to size: 0
Lookaside failures due to OOM: 0
Pager Heap Usage: 4904 bytes
Page cache hits: 0
Page cache misses: 0
Page cache writes: 0
Page cache spills: 0
Temporary data spilled to disk: 0
Schema Heap Usage: 0 bytes
Statement Heap/Lookaside Usage: 0 bytes
Bytes received by read(): 11185
Bytes sent to write(): 0
Read() system calls: 14
Write() system calls: 0
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