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test/altertab3.test
829 строк20 KB
dan
Fix a problem with ALTER TABLE DROP COLUMN commands where the column being dropped is the rightmost in table and is immediately preceded by a comment containing a "," character.
02 дек 2025, 17:43
02 дек 2025, 17:43d200379
# 2019 January 23
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#*************************************************************************
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix altertab3

# If SQLITE_OMIT_ALTERTABLE is defined, omit this file.
ifcapable !altertable {
  finish_test
  return
}

ifcapable windowfunc {
do_execsql_test 1.0 {
  CREATE TABLE t1(a, b);
  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
    SELECT sum(b) OVER w FROM t1 WINDOW w AS (ORDER BY a);
  END;
}

do_execsql_test 1.1 {
  ALTER TABLE t1 RENAME a TO aaa;
}

do_execsql_test 1.2 {
  SELECT sql FROM sqlite_master WHERE name='tr1'
} {{CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
    SELECT sum(b) OVER w FROM t1 WINDOW w AS (ORDER BY aaa);
  END}}

do_execsql_test 1.3 {
  INSERT INTO t1 VALUES(1, 2);
}
} ;# windowfunc

#-------------------------------------------------------------------------
reset_db
do_execsql_test 2.0 {
  CREATE TABLE t1(a,b,c);
  CREATE TABLE t2(a,b,c);
  CREATE TRIGGER r1 AFTER INSERT ON t1 WHEN new.a NOT NULL BEGIN
    SELECT a,b, a name FROM t1 
      INTERSECT 
    SELECT a,b,c FROM t1 WHERE b>='d' ORDER BY name;
    SELECT new.c;
  END;
}

do_execsql_test 2.1 {
  ALTER TABLE t1 RENAME TO t1x;
  SELECT sql FROM sqlite_master WHERE name = 'r1';
} {{CREATE TRIGGER r1 AFTER INSERT ON "t1x" WHEN new.a NOT NULL BEGIN
    SELECT a,b, a name FROM "t1x" 
      INTERSECT 
    SELECT a,b,c FROM "t1x" WHERE b>='d' ORDER BY name;
    SELECT new.c;
  END}}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 3.0 {
  CREATE TABLE t1(a, b, c, d);
  CREATE VIEW v1 AS SELECT * FROM t1 WHERE a=1 OR (b IN ());
}

do_execsql_test 3.1 {
  ALTER TABLE t1 RENAME b TO bbb;
}

do_execsql_test 3.2 {
  SELECT sql FROM sqlite_master WHERE name = 'v1'
} {{CREATE VIEW v1 AS SELECT * FROM t1 WHERE a=1 OR (b IN ())}}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 4.0 {
  CREATE TABLE t1(a, b);
  CREATE TABLE t3(e, f);
  CREATE TRIGGER tr1 AFTER INSERT ON t1 BEGIN
    INSERT INTO t2 VALUES(new.a, new.b);
  END;
}

do_catchsql_test 4.1.2 {
  BEGIN;
    ALTER TABLE t3 RENAME TO t4;
} {1 {error in trigger tr1: no such table: main.t2}}
do_execsql_test 4.1.2 {
  COMMIT;
}
do_execsql_test 4.1.3 {
  SELECT type, name, tbl_name, sql 
  FROM sqlite_master WHERE type='table' AND name!='t1';
} {table t3 t3 {CREATE TABLE t3(e, f)}}


do_catchsql_test 4.2.1 {
  BEGIN;
    ALTER TABLE t3 RENAME e TO eee;
} {1 {error in trigger tr1: no such table: main.t2}}
do_execsql_test 4.2.2 {
  COMMIT;
}
do_execsql_test 4.2.3 {
  SELECT type, name, tbl_name, sql 
  FROM sqlite_master WHERE type='table' AND name!='t1';
} {table t3 t3 {CREATE TABLE t3(e, f)}}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 5.0 {
  CREATE TABLE t1 (
      c1 integer, c2, PRIMARY KEY(c1 collate rtrim),
      UNIQUE(c2)
  )
}
do_execsql_test 5.1 {
  ALTER TABLE t1 RENAME c1 TO c3;
}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 6.0 {
  CREATE TEMPORARY TABLE Table0 (
    Col0 INTEGER, 
    PRIMARY KEY(Col0 COLLATE RTRIM), 
    FOREIGN KEY (Col0) REFERENCES Table0
  );
}

do_execsql_test 6.1 {
  ALTER TABLE Table0 RENAME Col0 TO Col0;
}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 7.1.0 {
  CREATE TABLE t1(a,b,c);
  CREATE TRIGGER AFTER INSERT ON t1 BEGIN
    SELECT a, rank() OVER w1 FROM t1
    WINDOW w1 AS (PARTITION BY b, percent_rank() OVER w1);
  END;
}

do_execsql_test 7.1.2 {
  ALTER TABLE t1 RENAME TO t1x;
  SELECT sql FROM sqlite_master;
} {
  {CREATE TABLE "t1x"(a,b,c)}
  {CREATE TRIGGER AFTER INSERT ON "t1x" BEGIN
    SELECT a, rank() OVER w1 FROM "t1x"
    WINDOW w1 AS (PARTITION BY b, percent_rank() OVER w1);
  END}
}

do_execsql_test 7.2.1 {
  DROP TRIGGER after;
  CREATE TRIGGER AFTER INSERT ON t1x BEGIN
    SELECT a, rank() OVER w1 FROM t1x
    WINDOW w1 AS (PARTITION BY b, percent_rank() OVER w1 ORDER BY d);
  END;
}

do_catchsql_test 7.2.2 {
  ALTER TABLE t1x RENAME TO t1;
} {1 {error in trigger AFTER: no such column: d}}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 8.0 {
  CREATE TABLE t0(c0);
  CREATE INDEX i0 ON t0('1' IN ());
}
do_execsql_test 8.1 {
  ALTER TABLE t0 RENAME TO t1;
  SELECT sql FROM sqlite_master;
} {
  {CREATE TABLE "t1"(c0)}
  {CREATE INDEX i0 ON "t1"('1' IN ())}
}
do_execsql_test 8.2.1 {
  CREATE TABLE t2 (c0);
  CREATE INDEX i2 ON t2((LIKELIHOOD(c0, 1.0) IN ()));
  ALTER TABLE t2 RENAME COLUMN c0 TO c1;
}
do_execsql_test 8.2.2 {
  SELECT sql FROM sqlite_master WHERE tbl_name = 't2';
} {
  {CREATE TABLE t2 (c1)} 
  {CREATE INDEX i2 ON t2((LIKELIHOOD(c1, 1.0) IN ()))}
}
do_test 8.2.3 {
  sqlite3 db2 test.db
  db2 eval { INSERT INTO t2 VALUES (1), (2), (3) }
  db close
} {}
db2 close

#-------------------------------------------------------------------------
reset_db
do_execsql_test 9.1 {
  CREATE TABLE t1(a,b,c);
  CREATE TRIGGER AFTER INSERT ON t1 WHEN new.a NOT NULL BEGIN
    SELECT true WHERE (SELECT a, b FROM (t1)) IN ();
  END;
}
do_execsql_test 9.2 {
  ALTER TABLE t1 RENAME TO t1x;
}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 10.1 {
  CREATE TABLE t1(a, b, c);
  CREATE TABLE t2(a, b, c);
  CREATE VIEW v1 AS SELECT * FROM t1 WHERE (
    SELECT t1.a FROM t1, t2
  ) IN () OR t1.a=5;
}

do_execsql_test 10.2 {
  ALTER TABLE t2 RENAME TO t3;
  SELECT sql FROM sqlite_master WHERE name='v1';
} {
  {CREATE VIEW v1 AS SELECT * FROM t1 WHERE (
    SELECT t1.a FROM t1, t2
  ) IN () OR t1.a=5}
}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 11.1 {
  CREATE TABLE t1(
      a,b,c,d,e,f,g,h,j,jj,jjb,k,aa,bb,cc,dd,ee DEFAULT 3.14,
      ff DEFAULT('hiccup'),Wg NOD NULL DEFAULT(false)
  );

  CREATE TRIGGER b AFTER INSERT ON t1 WHEN new.a BEGIN
    SELECT a, sum() w3 FROM t1 
    WINDOW b AS (ORDER BY NOT EXISTS(SELECT 1 FROM abc));
  END;
}

do_catchsql_test 11.2 {
  ALTER TABLE t1 RENAME TO t1x;
} {1 {error in trigger b: no such table: main.abc}}

do_execsql_test 11.3 {
  DROP TRIGGER b;
  CREATE TRIGGER b AFTER INSERT ON t1 WHEN new.a BEGIN
    SELECT a, sum() w3 FROM t1 
    WINDOW b AS (ORDER BY NOT EXISTS(SELECT 1 FROM t1));
  END;
} {}

do_execsql_test 11.4 {
  ALTER TABLE t1 RENAME TO t1x;
  SELECT sql FROM sqlite_master WHERE name = 'b';
} {
{CREATE TRIGGER b AFTER INSERT ON "t1x" WHEN new.a BEGIN
    SELECT a, sum() w3 FROM "t1x" 
    WINDOW b AS (ORDER BY NOT EXISTS(SELECT 1 FROM "t1x"));
  END}
}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 12.1 {
CREATE TABLE t1(a,b,c,d,e,f,g,h,j,jj,Zjj,k,aQ,bb,cc,dd,ee DEFAULT 3.14,
ff DEFAULT('hiccup'),gg NOD NULL DEFAULT(false));
CREATE TRIGGER AFTER INSERT ON t1 WHEN new.a NOT NULL BEGIN

SELECT b () OVER , dense_rank() OVER d, d () OVER w1
FROM t1
WINDOW
w1 AS
( w1 ORDER BY d
ROWS BETWEEN 2 NOT IN(SELECT a, sum(d) w2,max(d)OVER FROM t1
WINDOW
w1 AS
(PARTITION BY d
ROWS BETWEEN '' PRECEDING AND false FOLLOWING),
d AS
(PARTITION BY b ORDER BY d
ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
) PRECEDING AND 1 FOLLOWING),
w2 AS
(PARTITION BY b ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW),
w3 AS
(PARTITION BY b ORDER BY d
ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
;
SELECT a, sum(d) w2,max(d)OVER FROM t1
WINDOW
w1 AS
(PARTITION BY d
ROWS BETWEEN '' PRECEDING AND false FOLLOWING),
d AS
(PARTITION BY b ORDER BY d
ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
;

END;
}

do_execsql_test 12.2 {
  ALTER TABLE t1 RENAME TO t1x;
}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 13.1 {
  CREATE TABLE t1(a);
  CREATE TRIGGER r1 INSERT ON t1 BEGIN
    SELECT a(*) OVER (ORDER BY (SELECT 1)) FROM t1;
  END;
}

do_execsql_test 13.2 {
  ALTER TABLE t1 RENAME TO t1x;
}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 14.1 {
  CREATE TABLE t1(a);
  CREATE TABLE t2(b);
  CREATE TRIGGER AFTER INSERT ON t1 BEGIN
    SELECT sum() FILTER (WHERE (SELECT sum() FILTER (WHERE 0)) AND a);
  END;
}

do_catchsql_test 14.2 {
  ALTER TABLE t1 RENAME TO t1x;
} {1 {error in trigger AFTER: no such column: a}}

#-------------------------------------------------------------------------
reset_db

do_execsql_test 16.1 {
  CREATE TABLE t1(x);
  CREATE TRIGGER AFTER INSERT ON t1 BEGIN
    SELECT (WITH t2 AS (WITH t3 AS (SELECT true)
          SELECT * FROM t3 ORDER BY true COLLATE nocase)
        SELECT 11);

    WITH t4 AS (SELECT * FROM t1) SELECT 33;
  END;
}
do_execsql_test 16.2 {
  ALTER TABLE t1 RENAME TO t1x;
}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 17.1 {
  CREATE TABLE t1(a,b,c);
  CREATE TRIGGER AFTER INSERT ON t1 WHEN new.a NOT NULL BEGIN
    SELECT a () FILTER (WHERE a>0) FROM t1;
  END;
}

do_execsql_test 17.2 {
  ALTER TABLE t1 RENAME TO t1x;
  ALTER TABLE t1x RENAME a TO aaa;
  SELECT sql FROM sqlite_master WHERE type='trigger';
} {
{CREATE TRIGGER AFTER INSERT ON "t1x" WHEN new.aaa NOT NULL BEGIN
    SELECT a () FILTER (WHERE aaa>0) FROM "t1x";
  END}
}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 18.1 {
  CREATE TABLE t1(a,b);
  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
    SELECT a, b FROM t1
    INTERSECT SELECT b,a FROM t1
    ORDER BY b IN (
        SELECT a UNION SELECT b
        FROM t1
        ORDER BY b COLLATE nocase
        )
    ;
  END;
}

do_catchsql_test 18.2 {
    SELECT a, b FROM t1
    INTERSECT 
    SELECT b,a FROM t1
    ORDER BY b IN (
        SELECT a UNION SELECT b
        FROM t1
        ORDER BY b COLLATE nocase
        );
} {1 {1st ORDER BY term does not match any column in the result set}}

do_catchsql_test 18.3 {
  ALTER TABLE t1 RENAME TO t1x;
} {1 {error in trigger r1: 1st ORDER BY term does not match any column in the result set}}

#-------------------------------------------------------------------------
reset_db 
do_execsql_test 19.0 {
  CREATE TABLE a(a,h CONSTRAINT a UNIQUE ON CONFLICT FAIL,CONSTRAINT a);
}

foreach {tn v res} {
  1 {
    CREATE VIEW q AS SELECT 123
    
      WINDOW x AS (
        RANGE BETWEEN UNBOUNDED PRECEDING AND INDEXED() OVER(
          PARTITION BY ( WITH x AS(VALUES(col1)) VALUES(453) )
        )
      FOLLOWING
    ) 
  } {1 {error in view q: no such column: col1}}

  2 {
    CREATE VIEW q AS SELECT
    CAST(CAST(CAST(CAST(CAST(CAST(CAST(CAST(CAST(CAST(CAST(RIGHT
    AS)AS)AS)AS)AS)AS)AS)AS)AS)AS)AS)WINDOW x AS(RANGE BETWEEN UNBOUNDED
    PRECEDING AND INDEXED(*)OVER(PARTITION BY
    CROSS,CROSS,NATURAL,sqlite_master(*)OVER a,(WITH a AS(VALUES(LEFT)UNION
    VALUES(LEFT)UNION VALUES(LEFT)UNION VALUES(LEFT)UNION VALUES(LEFT)UNION
    VALUES(LEFT)UNION VALUES(LEFT))VALUES(LEFT))IN
    STORED,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT)*LEFT FOLLOWING)ORDER BY
    LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT LIMIT
    LEFT,INDEXED(*)OVER(PARTITION BY
    CROSS,CROSS,CROSS,LEFT,INDEXED(*)OVER(PARTITION BY
    CROSS,CROSS,CROSS),INDEXED(*)OVER(PARTITION BY
    LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT,LEFT),
    LEFT,LEFT,INNER,CROSS,CROSS,CROSS,INNER,NATURAL ORDER BY
    OUTER,NATURAL,NATURAL,NATURAL,NATURAL,NATURAL,NATURAL,NATURAL,INNER,
    INNER,INNER NULLS LAST GROUPS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED
    FOLLOWING); 
  } {1 {error in view q: no such column: LEFT}}

  3 {
    CREATE VIEW q AS SELECT 99 WINDOW x AS (RANGE BETWEEN UNBOUNDED PRECEDING
    AND count(*)OVER(PARTITION BY (WITH a AS(VALUES(2),(x3))VALUES(0)))
    FOLLOWING)ORDER BY x2,sum(1)OVER(PARTITION BY avg(5)OVER(PARTITION BY x1));
  } {1 {error in view q: no such column: x3}}
} {
  do_execsql_test 19.$tn.1 "
    DROP VIEW IF EXISTS q;
    $v
  " {}

  do_catchsql_test 19.$tn.2 {
    ALTER TABLE a RENAME TO g;
  } $res
}

# Verify that the "if( pParse->nErr ) return WRC_Abort" at the top of the
# renameUnmapSelectCb() routine in alter.c (2019-12-04) is really required.
#
sqlite3 db :memory:
do_catchsql_test 20.10 {
  CREATE TABLE s(a, b, c);
  CREATE INDEX k ON s( (WITH s AS( SELECT * ) VALUES(2) ) IN () );
  ALTER TABLE s RENAME a TO a2;
} {1 {error in index k: no tables specified}}

#------------------------------------------------------------------------
#
reset_db
do_execsql_test 21.1 {
  CREATE TABLE s(col);
  CREATE VIEW v AS SELECT ( 
    WITH x(a) AS(SELECT * FROM s) VALUES(RIGHT) 
  ) IN() ; 
  CREATE TABLE a(a);
  ALTER TABLE a RENAME a TO b;
}

#------------------------------------------------------------------------
#
reset_db
do_execsql_test 22.1 {
  CREATE TABLE t1(a);
  CREATE VIEW v2(b) AS SELECT * FROM v2;
}

do_catchsql_test 22.2 {
  ALTER TABLE t1 RENAME TO t4;
} {1 {error in view v2: view v2 is circularly defined}}

do_execsql_test 22.3 {
  DROP VIEW v2;
  CREATE VIEW v2(b) AS WITH t3 AS (SELECT b FROM v2) SELECT * FROM t3;
}

do_catchsql_test 22.4 {
  ALTER TABLE t1 RENAME TO t4;
} {1 {error in view v2: view v2 is circularly defined}}

do_execsql_test 22.5 {
  DROP VIEW v2;
  CREATE VIEW v2(b) AS WITH t3 AS (SELECT b FROM v2) VALUES(1);
}

do_catchsql_test 22.6 {
  ALTER TABLE t1 RENAME TO t4;
} {0 {}}

#------------------------------------------------------------------------
#
reset_db
do_execsql_test 23.1 {
  CREATE TABLE t1(x);
  CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
    UPDATE t1 SET (c,d)=((SELECT 1 FROM t1 JOIN t2 ON b=x),1);
  END;
}

do_catchsql_test 23.2 {
  ALTER TABLE t1 RENAME TO t1x;
} {1 {error in trigger r1: no such table: main.t2}}

#------------------------------------------------------------------------
#
reset_db
do_execsql_test 23.1 {
  CREATE TABLE v0 (a);
  CREATE VIEW v2 (v3) AS 
    WITH x1 AS (SELECT * FROM v2) 
    SELECT v3 AS x, v3 AS y FROM v2; 
}

do_catchsql_test 23.2 {
  SELECT * FROM v2
} {1 {view v2 is circularly defined}}

db close
sqlite3 db test.db

do_catchsql_test 23.3 {
  ALTER TABLE v0 RENAME TO t3 ;
} {1 {error in view v2: view v2 is circularly defined}}

#------------------------------------------------------------------------
#
reset_db
do_execsql_test 24.1 {
  CREATE TABLE v0 (v1); 
  CREATE TABLE v2 (v3 INTEGER UNIQUE ON CONFLICT ABORT); 
  CREATE TRIGGER x AFTER INSERT ON v2 WHEN ( 
      ( SELECT v1 AS PROMO_REVENUE FROM v2 JOIN v0 USING ( VALUE ) ) AND 0 ) 
  BEGIN 
    DELETE FROM v2; 
  END; 
}
do_catchsql_test 24.2 {
  ALTER TABLE v0 RENAME TO x ;
} {1 {error in trigger x: cannot join using column VALUE - column not present in both tables}}

do_execsql_test 24.3 {
  DROP TRIGGER x;
  CREATE TRIGGER x AFTER INSERT ON v2 WHEN (
    0 AND (SELECT rowid FROM v0)
  ) BEGIN
    DELETE FROM v2;
  END;
}

do_execsql_test 24.4 {
  ALTER TABLE v0 RENAME TO xyz;
  SELECT sql FROM sqlite_master WHERE type='trigger'
} {{CREATE TRIGGER x AFTER INSERT ON v2 WHEN (
    0 AND (SELECT rowid FROM "xyz")
  ) BEGIN
    DELETE FROM v2;
  END}}

#------------------------------------------------------------------------
#
reset_db
do_execsql_test 25.1 {
  CREATE TABLE t1(a, b, c);
  CREATE TABLE t2(a, b, c);
  CREATE TRIGGER ttt AFTER INSERT ON t1 BEGIN
    UPDATE t1 SET a=t2.a FROM t2 WHERE t1.a=t2.a; 
  END;
}
#do_execsql_test 25.2 {
#  ALTER TABLE t2 RENAME COLUMN a TO aaa;
#}

#------------------------------------------------------------------------
#
reset_db
do_execsql_test 26.1 {
  CREATE TABLE t1(x);

  CREATE TABLE t3(y);
  CREATE TABLE t4(z);

  CREATE TRIGGER tr1 INSERT ON t3 BEGIN
    UPDATE t3 SET y=z FROM (SELECT z FROM t4);
  END;

  CREATE TRIGGER tr2 INSERT ON t3 BEGIN
    UPDATE t3 SET y=abc FROM (SELECT x AS abc FROM t1);
  END;
}

do_execsql_test 26.2 {
  ALTER TABLE t1 RENAME TO t2;
}

do_execsql_test 26.3 {
  ALTER TABLE t2 RENAME x TO xx;
}

do_execsql_test 26.4 {
  SELECT sql FROM sqlite_schema WHERE name='tr2'
} {
{CREATE TRIGGER tr2 INSERT ON t3 BEGIN
    UPDATE t3 SET y=abc FROM (SELECT xx AS abc FROM "t2");
  END}
}

# 2020-11-02 OSSFuzz 
#
reset_db
do_execsql_test 26.5 {
  CREATE TABLE t1(xx);
  CREATE TRIGGER xx INSERT ON t1 BEGIN
     UPDATE t1 SET xx=xx FROM(SELECT xx);
  END;
} {}
do_catchsql_test 26.6 {
  ALTER TABLE t1 RENAME TO t2;
} {1 {error in trigger xx: no such column: xx}}


#-------------------------------------------------------------------------
reset_db

do_execsql_test 27.1 {
  CREATE TABLE t1(a, b AS ((WITH w1 (xyz) AS  ( SELECT t1.b FROM t1 )  SELECT 123) IN ()), c);
}

do_execsql_test 27.2 {
  ALTER TABLE t1 DROP COLUMN c;
  SELECT sql FROM sqlite_schema WHERE name = 't1';
} {
  {CREATE TABLE t1(a, b AS ((WITH w1 (xyz) AS  ( SELECT t1.b FROM t1 )  SELECT 123) IN ()))}
}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 28.1 {
  CREATE TABLE t1(a,b,c,d);
  CREATE TRIGGER AFTER INSERT ON t1 BEGIN
    UPDATE t1 SET (c,d)=(a,b);
  END;
  ALTER TABLE t1 RENAME TO t2;
}

do_execsql_test 28.2 {
  SELECT sql FROM sqlite_schema WHERE type='trigger'
} {{CREATE TRIGGER AFTER INSERT ON "t2" BEGIN
    UPDATE "t2" SET (c,d)=(a,b);
  END}}


#-------------------------------------------------------------------------
reset_db
do_execsql_test 29.1 {
  CREATE TABLE t1(x, y);
  CREATE TRIGGER Trigger1 DELETE ON t1 
  BEGIN 
    SELECT t1.*, t1.x FROM t1 ORDER BY t1.x;
  END;
}


do_execsql_test 29.2 {
  ALTER TABLE t1 RENAME x TO z;
}

do_execsql_test 29.3 {
  ALTER TABLE t1 RENAME TO t2;
}

do_execsql_test 29.4 {
  CREATE TRIGGER tr2 AFTER DELETE ON t2 BEGIN
    SELECT z, y FROM (
      SELECT t2.* FROM t2
    );
  END;
}

do_execsql_test 29.5 {
  DELETE FROM t2
}

do_execsql_test 29.6 {
  ALTER TABLE t2 RENAME TO t3;
}

do_execsql_test 29.7 {
  SELECT sql FROM sqlite_schema WHERE type='trigger'
} {
  {CREATE TRIGGER Trigger1 DELETE ON "t3" 
  BEGIN 
    SELECT "t3".*, "t3".z FROM "t3" ORDER BY "t3".z;
  END}
  {CREATE TRIGGER tr2 AFTER DELETE ON "t3" BEGIN
    SELECT z, y FROM (
      SELECT "t3".* FROM "t3"
    );
  END}
}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 30.0 {
  CREATE TABLE t1(a, b);
  CREATE VIEW v1 AS 
      SELECT ( VALUES(a), (b) ) FROM (
        SELECT a, b FROM t1
      )
  ;
}

do_execsql_test 30.1 {
  SELECT * FROM v1
}

do_execsql_test 30.1 {
  ALTER TABLE t1 RENAME TO t2;
}
do_execsql_test 30.2 {
  SELECT sql FROM sqlite_schema WHERE type='view'
} {
  {CREATE VIEW v1 AS 
      SELECT ( VALUES(a), (b) ) FROM (
        SELECT a, b FROM "t2"
      )}
}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 31.0 {
  CREATE TABLE t1(ii INTEGER PRIMARY KEY, tt INTEGER, rr REAL);
  WITH s(i) AS (
    SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50000
  )
  INSERT INTO t1 SELECT NULL, i, 5.0 FROM s;
}

do_test 31.1 {
  set pg [db one {PRAGMA page_count}]
  execsql {
    ALTER TABLE t1 DROP COLUMN tt;
  }
  set pg2 [db one {PRAGMA page_count}]
  expr $pg==$pg2
} {1}

do_execsql_test 31.2 {
  SELECT rr FROM t1 LIMIT 1
} {5.0}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 32.1.0 {
  CREATE TABLE t1(
      a INT,
      b INT,
      -- comment with comma
      c INT
  );
}
do_execsql_test 32.1.1 {
  ALTER TABLE t1 DROP COLUMN c;
}
do_execsql_test 32.1.2 {
  SELECT sql FROM sqlite_schema
} {{CREATE TABLE t1(
      a INT,
      b INT)}}

reset_db
do_execsql_test 32.2.0 {
  CREATE TABLE t1(
      a INT,
      b INT,
      -- comment with, comma
      c INT
  );
}
do_execsql_test 32.2.1 {
  ALTER TABLE t1 DROP COLUMN c;
}
do_execsql_test 32.2.2 {
  SELECT sql FROM sqlite_schema
} {{CREATE TABLE t1(
      a INT,
      b INT)}}

#-------------------------------------------------------------------------
reset_db
do_execsql_test 33.1 {
  CREATE TABLE x1(a TEXT, b INTEGER, c CHECK(c!=0));
}

do_execsql_test 33.2 {
  ALTER TABLE x1 DROP COLUMN b;
  SELECT sql FROM sqlite_schema;
} {{CREATE TABLE x1(a TEXT, c CHECK(c!=0))}}

finish_test