libsql-wal 0.1.0-alpha.1

wal implementation for libsql
Documentation

  DROP TABLE IF EXISTS t2;
  CREATE TABLE t2(a INTEGER PRIMARY KEY, b INTEGER, c INTEGER) WITHOUT ROWID;
  INSERT INTO t2 VALUES(1, 2, 3);
  INSERT INTO t2 VALUES(4, 5, 6);
  INSERT INTO t2 VALUES(7, 8, 9);

  DROP TABLE IF EXISTS chng;
  CREATE TABLE chng(a INTEGER, b INTEGER, c INTEGER);
  INSERT INTO chng VALUES(1, 100, 1000);
  INSERT INTO chng VALUES(7, 700, 7000);


  SELECT * FROM t2;


  UPDATE t2 SET b = chng.b, c = chng.c FROM chng WHERE chng.a = t2.a;
  SELECT * FROM t2 ORDER BY a;


  DELETE FROM t2;
  INSERT INTO t2 VALUES(1, 2, 3);
  INSERT INTO t2 VALUES(4, 5, 6);
  INSERT INTO t2 VALUES(7, 8, 9);


  UPDATE t2 SET (b, c) = (SELECT b, c FROM chng WHERE a=t2.a) 
    WHERE a IN (SELECT a FROM chng);
  SELECT * FROM t2 ORDER BY a;


  DROP TABLE IF EXISTS t3;
  CREATE TABLE t3(a INTEGER PRIMARY KEY, b INTEGER, c TEXT) WITHOUT ROWID;
  INSERT INTO t3 VALUES(1, 1, 'one');
  INSERT INTO t3 VALUES(2, 2, 'two');
  INSERT INTO t3 VALUES(3, 3, 'three');

  DROP TABLE IF EXISTS t4;
  CREATE TABLE t4(x TEXT);
  INSERT INTO t4 VALUES('five');

  SELECT * FROM t3 ORDER BY a;


  UPDATE t3 SET c=x FROM t4;
  SELECT * FROM t3 ORDER BY a;


  DROP TABLE IF EXISTS t2;
  CREATE TABLE t2(a INTEGER PRIMARY KEY, b INTEGER, c INTEGER) ;
  INSERT INTO t2 VALUES(1, 2, 3);
  INSERT INTO t2 VALUES(4, 5, 6);
  INSERT INTO t2 VALUES(7, 8, 9);

  DROP TABLE IF EXISTS chng;
  CREATE TABLE chng(a INTEGER, b INTEGER, c INTEGER);
  INSERT INTO chng VALUES(1, 100, 1000);
  INSERT INTO chng VALUES(7, 700, 7000);


  SELECT * FROM t2;


  UPDATE t2 SET b = chng.b, c = chng.c FROM chng WHERE chng.a = t2.a;
  SELECT * FROM t2 ORDER BY a;


  DELETE FROM t2;
  INSERT INTO t2 VALUES(1, 2, 3);
  INSERT INTO t2 VALUES(4, 5, 6);
  INSERT INTO t2 VALUES(7, 8, 9);


  UPDATE t2 SET (b, c) = (SELECT b, c FROM chng WHERE a=t2.a) 
    WHERE a IN (SELECT a FROM chng);
  SELECT * FROM t2 ORDER BY a;


  DROP TABLE IF EXISTS t3;
  CREATE TABLE t3(a INTEGER PRIMARY KEY, b INTEGER, c TEXT) ;
  INSERT INTO t3 VALUES(1, 1, 'one');
  INSERT INTO t3 VALUES(2, 2, 'two');
  INSERT INTO t3 VALUES(3, 3, 'three');

  DROP TABLE IF EXISTS t4;
  CREATE TABLE t4(x TEXT);
  INSERT INTO t4 VALUES('five');

  SELECT * FROM t3 ORDER BY a;


  UPDATE t3 SET c=x FROM t4;
  SELECT * FROM t3 ORDER BY a;


  DROP TABLE IF EXISTS t5;
  DROP TABLE IF EXISTS m1;
  DROP TABLE IF EXISTS m2;
  CREATE TABLE t5(a INTEGER PRIMARY KEY, b TEXT, c TEXT);
  CREATE TABLE m1(x INTEGER PRIMARY KEY, y TEXT);
  CREATE TABLE m2(u INTEGER PRIMARY KEY, v TEXT);

  INSERT INTO t5 VALUES(1, 'one', 'ONE');
  INSERT INTO t5 VALUES(2, 'two', 'TWO');
  INSERT INTO t5 VALUES(3, 'three', 'THREE');
  INSERT INTO t5 VALUES(4, 'four', 'FOUR');

  INSERT INTO m1 VALUES(1, 'i');
  INSERT INTO m1 VALUES(2, 'ii');
  INSERT INTO m1 VALUES(3, 'iii');

  INSERT INTO m2 VALUES(1, 'I');
  INSERT INTO m2 VALUES(3, 'II');
  INSERT INTO m2 VALUES(4, 'III');


  UPDATE t5 SET b=y, c=v FROM m1 LEFT JOIN m2 ON (x=u) WHERE x=a;
  SELECT * FROM t5 ORDER BY a;


  CREATE TABLE t0(a);
  CREATE TABLE t1(b);
  UPDATE t1 SET b=sum(a) FROM t0;
  SELECT * FROM t0, t1;


  CREATE TABLE t1(x INT);  INSERT INTO t1 VALUES(1);
  CREATE TABLE t2(y INT);  INSERT INTO t2 VALUES(2);
  WITH t1 AS (SELECT y+100 AS x FROM t2) 
    UPDATE t1 SET x=(SELECT x FROM t1);
  SELECT x, y FROM t1, t2;


  WITH t1 AS (SELECT y+100 AS x FROM t2)
    UPDATE t1 SET x=x+y FROM t2;
  SELECT x, y FROM t1, t2;


  CREATE TABLE t1(a);
  INSERT INTO t1(a) VALUES(5);
  CREATE VIEW t2 AS SELECT a FROM t1 UNION ALL SELECT a FROM t1;
  CREATE TABLE t3(b,c);
  INSERT INTO t3(b,c) VALUES(1,2);
  UPDATE t3 SET (c,b) = (SELECT 3,4) FROM t1, t2;
  SELECT * FROM t3;