# 2004 November 10
#
# 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.
#
#*************************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script is testing the ALTER TABLE statement.
#
# $Id: alter.test,v 1.32 2009/03/24 15:08:10 drh Exp $
#

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

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

#----------------------------------------------------------------------
# Test organization:
#
# alter-1.1.* - alter-1.7.*: Basic tests of ALTER TABLE, including tables
#     with implicit and explicit indices. These tests came from an earlier
#     fork of SQLite that also supported ALTER TABLE.
# alter-1.8.*: Tests for ALTER TABLE when the table resides in an 
#     attached database.
# alter-1.9.*: Tests for ALTER TABLE when their is whitespace between the
#     table name and left parenthesis token. i.e: 
#     "CREATE TABLE abc       (a, b, c);"
# alter-2.*: Test error conditions and messages.
# alter-3.*: Test ALTER TABLE on tables that have TRIGGERs attached to them.
# alter-4.*: Test ALTER TABLE on tables that have AUTOINCREMENT fields.
# ...
# alter-12.*: Test ALTER TABLE on views.
#

# Create some tables to rename.  Be sure to include some TEMP tables
# and some tables with odd names.
#
do_test alter-1.1 {
  ifcapable tempdb {
    set ::temp TEMP
  } else {
    set ::temp {}
  }
  execsql [subst -nocommands {
    CREATE TABLE t1(a,b);
    INSERT INTO t1 VALUES(1,2);
    CREATE TABLE [t1'x1](c UNIQUE, b PRIMARY KEY);
    INSERT INTO [t1'x1] VALUES(3,4);
    CREATE INDEX t1i1 ON T1(B);
    CREATE INDEX t1i2 ON t1(a,b);
    CREATE INDEX i3 ON [t1'x1](b,c);
    CREATE $::temp TABLE "temp table"(e,f,g UNIQUE);
    CREATE INDEX i2 ON [temp table](f);
    INSERT INTO [temp table] VALUES(5,6,7);
  }]
  execsql {
    SELECT 't1', * FROM t1;
    SELECT 't1''x1', * FROM "t1'x1";
    SELECT * FROM [temp table];
  }
} {t1 1 2 t1'x1 3 4 5 6 7}
do_test alter-1.2 {
  execsql [subst {
    CREATE $::temp TABLE objlist(type, name, tbl_name);
    INSERT INTO objlist SELECT type, name, tbl_name 
        FROM sqlite_master WHERE NAME!='objlist';
  }]
  ifcapable tempdb {
    execsql {
      INSERT INTO objlist SELECT type, name, tbl_name 
          FROM sqlite_temp_master WHERE NAME!='objlist';
    }
  }

  execsql {
    SELECT type, name, tbl_name FROM objlist ORDER BY tbl_name, type desc, name;
  }
} [list \
     table t1                              t1             \
     index t1i1                            t1             \
     index t1i2                            t1             \
     table t1'x1                           t1'x1          \
     index i3                              t1'x1          \
     index {sqlite_autoindex_t1'x1_1}      t1'x1          \
     index {sqlite_autoindex_t1'x1_2}      t1'x1          \
     table {temp table}                    {temp table}   \
     index i2                              {temp table}   \
     index {sqlite_autoindex_temp table_1} {temp table}   \
  ]

# Make some changes
#
integrity_check alter-1.3.0
do_test alter-1.3 {
  execsql {
    ALTER TABLE [T1] RENAME to [-t1-];
    ALTER TABLE "t1'x1" RENAME TO T2;
    ALTER TABLE [temp table] RENAME to TempTab;
  }
} {}
integrity_check alter-1.3.1
do_test alter-1.4 {
  execsql {
    SELECT 't1', * FROM [-t1-];
    SELECT 't2', * FROM t2;
    SELECT * FROM temptab;
  }
} {t1 1 2 t2 3 4 5 6 7}
do_test alter-1.5 {
  execsql {
    DELETE FROM objlist;
    INSERT INTO objlist SELECT type, name, tbl_name
        FROM sqlite_master WHERE NAME!='objlist';
  }
  catchsql {
    INSERT INTO objlist SELECT type, name, tbl_name 
        FROM sqlite_temp_master WHERE NAME!='objlist';
  }
  execsql {
    SELECT type, name, tbl_name FROM objlist ORDER BY tbl_name, type desc, name;
  }
} [list \
     table -t1-                         -t1-        \
     index t1i1                         -t1-        \
     index t1i2                         -t1-        \
     table T2                           T2          \
     index i3                           T2          \
     index {sqlite_autoindex_T2_1}      T2          \
     index {sqlite_autoindex_T2_2}      T2          \
     table {TempTab}                    {TempTab}   \
     index i2                           {TempTab}   \
     index {sqlite_autoindex_TempTab_1} {TempTab}   \
  ]

# Make sure the changes persist after restarting the database.
# (The TEMP table will not persist, of course.)
#
ifcapable tempdb {
  do_test alter-1.6 {
    db close
    sqlite3 db test.db
    set DB [sqlite3_connection_pointer db]
    execsql {
      CREATE TEMP TABLE objlist(type, name, tbl_name);
      INSERT INTO objlist SELECT type, name, tbl_name FROM sqlite_master;
      INSERT INTO objlist 
          SELECT type, name, tbl_name FROM sqlite_temp_master 
          WHERE NAME!='objlist';
      SELECT type, name, tbl_name FROM objlist 
          ORDER BY tbl_name, type desc, name;
    }
  } [list \
       table -t1-                         -t1-           \
       index t1i1                         -t1-           \
       index t1i2                         -t1-           \
       table T2                           T2          \
       index i3                           T2          \
       index {sqlite_autoindex_T2_1}      T2          \
       index {sqlite_autoindex_T2_2}      T2          \
    ]
} else {
  execsql {
    DROP TABLE TempTab;
  }
}

# Create bogus application-defined functions for functions used 
# internally by ALTER TABLE, to ensure that ALTER TABLE falls back
# to the built-in functions.
#
proc failing_app_func {args} {error "bad function"}
do_test alter-1.7-prep {
  db func substr failing_app_func
  db func like failing_app_func
  db func sqlite_rename_table failing_app_func
  db func sqlite_rename_trigger failing_app_func
  db func sqlite_rename_parent failing_app_func
  catchsql {SELECT substr(name,1,3) FROM sqlite_master}
} {1 {bad function}}

# Make sure the ALTER TABLE statements work with the
# non-callback API
#
do_test alter-1.7 {
  stepsql $DB {
    ALTER TABLE [-t1-] RENAME to [*t1*];
    ALTER TABLE T2 RENAME TO [<t2>];
  }
  execsql {
    DELETE FROM objlist;
    INSERT INTO objlist SELECT type, name, tbl_name
        FROM sqlite_master WHERE NAME!='objlist';
  }
  catchsql {
    INSERT INTO objlist SELECT type, name, tbl_name 
        FROM sqlite_temp_master WHERE NAME!='objlist';
  }
  execsql {
    SELECT type, name, tbl_name FROM objlist ORDER BY tbl_name, type desc, name;
  }
} [list \
     table *t1*                         *t1*           \
     index t1i1                         *t1*           \
     index t1i2                         *t1*           \
     table <t2>                         <t2>          \
     index i3                           <t2>          \
     index {sqlite_autoindex_<t2>_1}    <t2>          \
     index {sqlite_autoindex_<t2>_2}    <t2>          \
  ]

# Check that ALTER TABLE works on attached databases.
#
ifcapable attach {
  do_test alter-1.8.1 {
    forcedelete test2.db
    forcedelete test2.db-journal
    execsql {
      ATTACH 'test2.db' AS aux;
    }
  } {}
  do_test alter-1.8.2 {
    execsql {
      CREATE TABLE t4(a PRIMARY KEY, b, c);
      CREATE TABLE aux.t4(a PRIMARY KEY, b, c);
      CREATE INDEX i4 ON t4(b);
      CREATE INDEX aux.i4 ON t4(b);
    }
  } {}
  do_test alter-1.8.3 {
    execsql {
      INSERT INTO t4 VALUES('main', 'main', 'main');
      INSERT INTO aux.t4 VALUES('aux', 'aux', 'aux');
      SELECT * FROM t4 WHERE a = 'main';
    }
  } {main main main}
  do_test alter-1.8.4 {
    execsql {
      ALTER TABLE t4 RENAME TO t5;
      SELECT * FROM t4 WHERE a = 'aux';
    }
  } {aux aux aux}
  do_test alter-1.8.5 {
    execsql {
      SELECT * FROM t5;
    }
  } {main main main}
  do_test alter-1.8.6 {
    execsql {
      SELECT * FROM t5 WHERE b = 'main';
    }
  } {main main main}
  do_test alter-1.8.7 {
    execsql {
      ALTER TABLE aux.t4 RENAME TO t5;
      SELECT * FROM aux.t5 WHERE b = 'aux';
    }
  } {aux aux aux}
}

do_test alter-1.9.1 {
  execsql {
    CREATE TABLE tbl1   (a, b, c);
    INSERT INTO tbl1 VALUES(1, 2, 3);
  }
} {}
do_test alter-1.9.2 {
  execsql {
    SELECT * FROM tbl1;
  }
} {1 2 3}
do_test alter-1.9.3 {
  execsql {
    ALTER TABLE tbl1 RENAME TO tbl2;
    SELECT * FROM tbl2;
  }
} {1 2 3}
do_test alter-1.9.4 {
  execsql {
    DROP TABLE tbl2;
  }
} {}

# Test error messages
#
do_test alter-2.1 {
  catchsql {
    ALTER TABLE none RENAME TO hi;
  }
} {1 {no such table: none}}
do_test alter-2.2 {
  execsql {
    CREATE TABLE t3(p,q,r);
  }
  catchsql {
    ALTER TABLE [<t2>] RENAME TO t3;
  }
} {1 {there is already another table or index with this name: t3}}
do_test alter-2.3 {
  catchsql {
    ALTER TABLE [<t2>] RENAME TO i3;
  }
} {1 {there is already another table or index with this name: i3}}
do_test alter-2.4 {
  catchsql {
    ALTER TABLE SqLiTe_master RENAME TO master;
  }
} {1 {table sqlite_master may not be altered}}
do_test alter-2.5 {
  catchsql {
    ALTER TABLE t3 RENAME TO sqlite_t3;
  }
} {1 {object name reserved for internal use: sqlite_t3}}
do_test alter-2.6 {
  catchsql {
    ALTER TABLE t3 ADD COLUMN (ALTER TABLE t3 ADD COLUMN);
  }
} {1 {near "(": syntax error}}

# If this compilation does not include triggers, omit the alter-3.* tests.
ifcapable trigger {

#-----------------------------------------------------------------------
# Tests alter-3.* test ALTER TABLE on tables that have triggers.
#
# alter-3.1.*: ALTER TABLE with triggers.
# alter-3.2.*: Test that the ON keyword cannot be used as a database,
#     table or column name unquoted. This is done because part of the
#     ALTER TABLE code (specifically the implementation of SQL function
#     "sqlite_alter_trigger") will break in this case.
# alter-3.3.*: ALTER TABLE with TEMP triggers (todo).
#

# An SQL user-function for triggers to fire, so that we know they
# are working.
proc trigfunc {args} {
  set ::TRIGGER $args
}
db func trigfunc trigfunc

do_test alter-3.1.0 {
  execsql {
    CREATE TABLE t6(a, b, c);
    -- Different case for the table name in the trigger.
    CREATE TRIGGER trig1 AFTER INSERT ON T6 BEGIN
      SELECT trigfunc('trig1', new.a, new.b, new.c);
    END;
  }
} {}
do_test alter-3.1.1 {
  execsql {
    INSERT INTO t6 VALUES(1, 2, 3);
  }
  set ::TRIGGER
} {trig1 1 2 3}
do_test alter-3.1.2 {
  execsql {
    ALTER TABLE t6 RENAME TO t7;
    INSERT INTO t7 VALUES(4, 5, 6);
  }
  set ::TRIGGER
} {trig1 4 5 6}
do_test alter-3.1.3 {
  execsql {
    DROP TRIGGER trig1;
  }
} {}
do_test alter-3.1.4 {
  execsql {
    CREATE TRIGGER trig2 AFTER INSERT ON main.t7 BEGIN
      SELECT trigfunc('trig2', new.a, new.b, new.c);
    END;
    INSERT INTO t7 VALUES(1, 2, 3);
  }
  set ::TRIGGER
} {trig2 1 2 3}
do_test alter-3.1.5 {
  execsql {
    ALTER TABLE t7 RENAME TO t8;
    INSERT INTO t8 VALUES(4, 5, 6);
  }
  set ::TRIGGER
} {trig2 4 5 6}
do_test alter-3.1.6 {
  execsql {
    DROP TRIGGER trig2;
  }
} {}
do_test alter-3.1.7 {
  execsql {
    CREATE TRIGGER trig3 AFTER INSERT ON main.'t8'BEGIN
      SELECT trigfunc('trig3', new.a, new.b, new.c);
    END;
    INSERT INTO t8 VALUES(1, 2, 3);
  }
  set ::TRIGGER
} {trig3 1 2 3}
do_test alter-3.1.8 {
  execsql {
    ALTER TABLE t8 RENAME TO t9;
    INSERT INTO t9 VALUES(4, 5, 6);
  }
  set ::TRIGGER
} {trig3 4 5 6}

# Make sure "ON" cannot be used as a database, table or column name without
# quoting. Otherwise the sqlite_alter_trigger() function might not work.
forcedelete test3.db
forcedelete test3.db-journal
ifcapable attach {
  do_test alter-3.2.1 {
    catchsql {
      ATTACH 'test3.db' AS ON;
    }
  } {1 {near "ON": syntax error}}
  do_test alter-3.2.2 {
    catchsql {
      ATTACH 'test3.db' AS 'ON';
    }
  } {0 {}}
  do_test alter-3.2.3 {
    catchsql {
      CREATE TABLE ON.t1(a, b, c); 
    }
  } {1 {near "ON": syntax error}}
  do_test alter-3.2.4 {
    catchsql {
      CREATE TABLE 'ON'.t1(a, b, c); 
    }
  } {0 {}}
  do_test alter-3.2.4 {
    catchsql {
      CREATE TABLE 'ON'.ON(a, b, c); 
    }
  } {1 {near "ON": syntax error}}
  do_test alter-3.2.5 {
    catchsql {
      CREATE TABLE 'ON'.'ON'(a, b, c); 
    }
  } {0 {}}
}
do_test alter-3.2.6 {
  catchsql {
    CREATE TABLE t10(a, ON, c);
  }
} {1 {near "ON": syntax error}}
do_test alter-3.2.7 {
  catchsql {
    CREATE TABLE t10(a, 'ON', c);
  }
} {0 {}}
do_test alter-3.2.8 {
  catchsql {
    CREATE TRIGGER trig4 AFTER INSERT ON ON BEGIN SELECT 1; END;
  }
} {1 {near "ON": syntax error}}
ifcapable attach {
  do_test alter-3.2.9 {
    catchsql {
      CREATE TRIGGER 'on'.trig4 AFTER INSERT ON 'ON' BEGIN SELECT 1; END;
    }
  } {0 {}}
}
do_test alter-3.2.10 {
  execsql {
    DROP TABLE t10;
  }
} {}

do_test alter-3.3.1 {
  execsql [subst {
    CREATE TABLE tbl1(a, b, c);
    CREATE $::temp TRIGGER trig1 AFTER INSERT ON tbl1 BEGIN
      SELECT trigfunc('trig1', new.a, new.b, new.c);
    END;
  }]
} {}
do_test alter-3.3.2 {
  execsql {
    INSERT INTO tbl1 VALUES('a', 'b', 'c');
  }
  set ::TRIGGER
} {trig1 a b c}
do_test alter-3.3.3 {
  execsql {
    ALTER TABLE tbl1 RENAME TO tbl2;
    INSERT INTO tbl2 VALUES('d', 'e', 'f');
  } 
  set ::TRIGGER
} {trig1 d e f}
do_test alter-3.3.4 {
  execsql [subst {
    CREATE $::temp TRIGGER trig2 AFTER UPDATE ON tbl2 BEGIN
      SELECT trigfunc('trig2', new.a, new.b, new.c);
    END;
  }] 
} {}
do_test alter-3.3.5 {
  execsql {
    ALTER TABLE tbl2 RENAME TO tbl3;
    INSERT INTO tbl3 VALUES('g', 'h', 'i');
  } 
  set ::TRIGGER
} {trig1 g h i}
do_test alter-3.3.6 {
  execsql {
    UPDATE tbl3 SET a = 'G' where a = 'g';
  } 
  set ::TRIGGER
} {trig2 G h i}
do_test alter-3.3.7 {
  execsql {
    DROP TABLE tbl3;
  }
} {}
ifcapable tempdb {
  do_test alter-3.3.8 {
    execsql {
      SELECT * FROM sqlite_temp_master WHERE type = 'trigger';
    }
  } {}
}

} ;# ifcapable trigger

# If the build does not include AUTOINCREMENT fields, omit alter-4.*.
ifcapable autoinc {

do_test alter-4.1 {
  execsql {
    CREATE TABLE tbl1(a INTEGER PRIMARY KEY AUTOINCREMENT);
    INSERT INTO tbl1 VALUES(10);
  }
} {}
do_test alter-4.2 {
  execsql {
    INSERT INTO tbl1 VALUES(NULL);
    SELECT a FROM tbl1;
  }
} {10 11}
do_test alter-4.3 {
  execsql {
    ALTER TABLE tbl1 RENAME TO tbl2;
    DELETE FROM tbl2;
    INSERT INTO tbl2 VALUES(NULL);
    SELECT a FROM tbl2;
  }
} {12}
do_test alter-4.4 {
  execsql {
    DROP TABLE tbl2;
  }
} {}

} ;# ifcapable autoinc

# Test that it is Ok to execute an ALTER TABLE immediately after
# opening a database.
do_test alter-5.1 {
  execsql {
    CREATE TABLE tbl1(a, b, c);
    INSERT INTO tbl1 VALUES('x', 'y', 'z');
  }
} {}
do_test alter-5.2 {
  sqlite3 db2 test.db
  execsql {
    ALTER TABLE tbl1 RENAME TO tbl2;
    SELECT * FROM tbl2;
  } db2
} {x y z}
do_test alter-5.3 {
  db2 close
} {}

foreach tblname [execsql {
  SELECT name FROM sqlite_master
   WHERE type='table' AND name NOT GLOB 'sqlite*'
}] {
  execsql "DROP TABLE \"$tblname\""
}

set ::tbl_name "abc\uABCDdef"
do_test alter-6.1 {
  string length $::tbl_name
} {7}
do_test alter-6.2 {
  execsql "
    CREATE TABLE ${tbl_name}(a, b, c);
  "
  set ::oid [execsql {SELECT max(oid) FROM sqlite_master}]
  execsql "
    SELECT sql FROM sqlite_master WHERE oid = $::oid;
  "
} "{CREATE TABLE ${::tbl_name}(a, b, c)}"
execsql "
  SELECT * FROM ${::tbl_name}
"
set ::tbl_name2 "abcXdef"
do_test alter-6.3 {
  execsql "
    ALTER TABLE $::tbl_name RENAME TO $::tbl_name2 
  "
  execsql "
    SELECT sql FROM sqlite_master WHERE oid = $::oid
  "
} "{CREATE TABLE \"${::tbl_name2}\"(a, b, c)}"
do_test alter-6.4 {
  execsql "
    ALTER TABLE $::tbl_name2 RENAME TO $::tbl_name
  "
  execsql "
    SELECT sql FROM sqlite_master WHERE oid = $::oid
  "
} "{CREATE TABLE \"${::tbl_name}\"(a, b, c)}"
set ::col_name ghi\1234\jkl
do_test alter-6.5 {
  execsql "
    ALTER TABLE $::tbl_name ADD COLUMN $::col_name VARCHAR
  "
  execsql "
    SELECT sql FROM sqlite_master WHERE oid = $::oid
  "
} "{CREATE TABLE \"${::tbl_name}\"(a, b, c, $::col_name VARCHAR)}"
set ::col_name2 B\3421\A
do_test alter-6.6 {
  db close
  sqlite3 db test.db
  execsql "
    ALTER TABLE $::tbl_name ADD COLUMN $::col_name2
  "
  execsql "
    SELECT sql FROM sqlite_master WHERE oid = $::oid
  "
} "{CREATE TABLE \"${::tbl_name}\"(a, b, c, $::col_name VARCHAR, $::col_name2)}"
do_test alter-6.7 {
  execsql "
    INSERT INTO ${::tbl_name} VALUES(1, 2, 3, 4, 5);
    SELECT $::col_name, $::col_name2 FROM $::tbl_name;
  "
} {4 5}

# Ticket #1665:  Make sure ALTER TABLE ADD COLUMN works on a table
# that includes a COLLATE clause.
#
do_realnum_test alter-7.1 {
  execsql {
    CREATE TABLE t1(a TEXT COLLATE BINARY);
    ALTER TABLE t1 ADD COLUMN b INTEGER COLLATE NOCASE;
    INSERT INTO t1 VALUES(1,'-2');
    INSERT INTO t1 VALUES(5.4e-08,'5.4e-08');
    SELECT typeof(a), a, typeof(b), b FROM t1;
  }
} {text 1 integer -2 text 5.4e-08 real 5.4e-08}

# Make sure that when a column is added by ALTER TABLE ADD COLUMN and has
# a default value that the default value is used by aggregate functions.
#
do_test alter-8.1 {
  execsql {
    CREATE TABLE t2(a INTEGER);
    INSERT INTO t2 VALUES(1);
    INSERT INTO t2 VALUES(1);
    INSERT INTO t2 VALUES(2);
    ALTER TABLE t2 ADD COLUMN b INTEGER DEFAULT 9;
    SELECT sum(b) FROM t2;
  }
} {27}
do_test alter-8.2 {
  execsql {
    SELECT a, sum(b) FROM t2 GROUP BY a;
  }
} {1 18 2 9}

#--------------------------------------------------------------------------
# alter-9.X - Special test: Make sure the sqlite_rename_trigger() and
# rename_table() functions do not crash when handed bad input.
#
ifcapable trigger {
  do_test alter-9.1 {
    execsql {SELECT SQLITE_RENAME_TRIGGER(0,0)}
  } {{}}
}
do_test alter-9.2 {
  execsql {
    SELECT SQLITE_RENAME_TABLE(0,0);
    SELECT SQLITE_RENAME_TABLE(10,20);
    SELECT SQLITE_RENAME_TABLE('foo', 'foo');
  }
} {{} {} {}}

#------------------------------------------------------------------------
# alter-10.X - Make sure ALTER TABLE works with multi-byte UTF-8 characters 
# in the names.
#
do_test alter-10.1 {
  execsql "CREATE TABLE xyz(x UNIQUE)"
  execsql "ALTER TABLE xyz RENAME TO xyz\u1234abc"
  execsql {SELECT name FROM sqlite_master WHERE name GLOB 'xyz*'}
} [list xyz\u1234abc]
do_test alter-10.2 {
  execsql {SELECT name FROM sqlite_master WHERE name GLOB 'sqlite_autoindex*'}
} [list sqlite_autoindex_xyz\u1234abc_1]
do_test alter-10.3 {
  execsql "ALTER TABLE xyz\u1234abc RENAME TO xyzabc"
  execsql {SELECT name FROM sqlite_master WHERE name GLOB 'xyz*'}
} [list xyzabc]
do_test alter-10.4 {
  execsql {SELECT name FROM sqlite_master WHERE name GLOB 'sqlite_autoindex*'}
} [list sqlite_autoindex_xyzabc_1]

do_test alter-11.1 {
  sqlite3_exec db {CREATE TABLE t11(%c6%c6)}
  execsql {
    ALTER TABLE t11 ADD COLUMN abc;
  }
  catchsql {
    ALTER TABLE t11 ADD COLUMN abc;
  }
} {1 {duplicate column name: abc}}
set isutf16 [regexp 16 [db one {PRAGMA encoding}]]
if {!$isutf16} {
  do_test alter-11.2 {
    execsql {INSERT INTO t11 VALUES(1,2)}
    sqlite3_exec db {SELECT %c6%c6 AS xyz, abc FROM t11}
  } {0 {xyz abc 1 2}}
}
do_test alter-11.3 {
  sqlite3_exec db {CREATE TABLE t11b("%81%82%83" text)}
  execsql {
    ALTER TABLE t11b ADD COLUMN abc;
  }
  catchsql {
    ALTER TABLE t11b ADD COLUMN abc;
  }
} {1 {duplicate column name: abc}}
if {!$isutf16} {
  do_test alter-11.4 {
    execsql {INSERT INTO t11b VALUES(3,4)}
    sqlite3_exec db {SELECT %81%82%83 AS xyz, abc FROM t11b}
  } {0 {xyz abc 3 4}}
  do_test alter-11.5 {
    sqlite3_exec db {SELECT [%81%82%83] AS xyz, abc FROM t11b}
  } {0 {xyz abc 3 4}}
  do_test alter-11.6 {
    sqlite3_exec db {SELECT "%81%82%83" AS xyz, abc FROM t11b}
  } {0 {xyz abc 3 4}}
}
do_test alter-11.7 {
  sqlite3_exec db {CREATE TABLE t11c(%81%82%83 text)}
  execsql {
    ALTER TABLE t11c ADD COLUMN abc;
  }
  catchsql {
    ALTER TABLE t11c ADD COLUMN abc;
  }
} {1 {duplicate column name: abc}}
if {!$isutf16} {
  do_test alter-11.8 {
    execsql {INSERT INTO t11c VALUES(5,6)}
    sqlite3_exec db {SELECT %81%82%83 AS xyz, abc FROM t11c}
  } {0 {xyz abc 5 6}}
  do_test alter-11.9 {
    sqlite3_exec db {SELECT [%81%82%83] AS xyz, abc FROM t11c}
  } {0 {xyz abc 5 6}}
  do_test alter-11.10 {
    sqlite3_exec db {SELECT "%81%82%83" AS xyz, abc FROM t11c}
  } {0 {xyz abc 5 6}}
}

do_test alter-12.1 {
  execsql {
    CREATE TABLE t12(a, b, c);
    CREATE VIEW v1 AS SELECT * FROM t12;
  }
} {}
do_test alter-12.2 {
  catchsql {
    ALTER TABLE v1 RENAME TO v2;
  }
} {1 {view v1 may not be altered}}
do_test alter-12.3 {
  execsql { SELECT * FROM v1; }
} {}
do_test alter-12.4 {
  db close
  sqlite3 db test.db
  execsql { SELECT * FROM v1; }
} {}
do_test alter-12.5 {
  catchsql { 
    ALTER TABLE v1 ADD COLUMN new_column;
  }
} {1 {Cannot add a column to a view}}

# Ticket #3102:
# Verify that comments do not interfere with the table rename
# algorithm.
#
do_test alter-13.1 {
  execsql {
    CREATE TABLE /* hi */ t3102a(x);
    CREATE TABLE t3102b -- comment
    (y);
    CREATE INDEX t3102c ON t3102a(x);
    SELECT name FROM sqlite_master WHERE name GLOB 't3102*' ORDER BY 1;
  }
} {t3102a t3102b t3102c}
do_test alter-13.2 {
  execsql {
    ALTER TABLE t3102a RENAME TO t3102a_rename;
    SELECT name FROM sqlite_master WHERE name GLOB 't3102*' ORDER BY 1;
  }
} {t3102a_rename t3102b t3102c}
do_test alter-13.3 {
  execsql {
    ALTER TABLE t3102b RENAME TO t3102b_rename;
    SELECT name FROM sqlite_master WHERE name GLOB 't3102*' ORDER BY 1;
  }
} {t3102a_rename t3102b_rename t3102c}

# Ticket #3651
do_test alter-14.1 {
  catchsql {
    CREATE TABLE t3651(a UNIQUE);
    ALTER TABLE t3651 ADD COLUMN b UNIQUE;
  }
} {1 {Cannot add a UNIQUE column}}
do_test alter-14.2 {
  catchsql {
    ALTER TABLE t3651 ADD COLUMN b PRIMARY KEY;
  }
} {1 {Cannot add a PRIMARY KEY column}}


#-------------------------------------------------------------------------
# Test that it is not possible to use ALTER TABLE on any system table.
#
set system_table_list {1 sqlite_master}
catchsql ANALYZE
ifcapable analyze { lappend system_table_list 2 sqlite_stat1 }
ifcapable stat3   { lappend system_table_list 3 sqlite_stat3 }
ifcapable stat4   { lappend system_table_list 4 sqlite_stat4 }

foreach {tn tbl} $system_table_list {
  do_test alter-15.$tn.1 {
    catchsql "ALTER TABLE $tbl RENAME TO xyz"
  } [list 1 "table $tbl may not be altered"]

  do_test alter-15.$tn.2 {
    catchsql "ALTER TABLE $tbl ADD COLUMN xyz"
  } [list 1 "table $tbl may not be altered"]
}

#------------------------------------------------------------------------
# Verify that ALTER TABLE works on tables with the WITHOUT rowid option.
#
do_execsql_test alter-16.1 {
  CREATE TABLE t16a(a TEXT, b REAL, c INT, PRIMARY KEY(a,b)) WITHOUT rowid;
  INSERT INTO t16a VALUES('abc',1.25,99);
  ALTER TABLE t16a ADD COLUMN d TEXT DEFAULT 'xyzzy';
  INSERT INTO t16a VALUES('cba',5.5,98,'fizzle');
  SELECT * FROM t16a ORDER BY a;
} {abc 1.25 99 xyzzy cba 5.5 98 fizzle}
do_execsql_test alter-16.2 {
  ALTER TABLE t16a RENAME TO t16a_rn;
  SELECT * FROM t16a_rn ORDER BY a;
} {abc 1.25 99 xyzzy cba 5.5 98 fizzle}

#-------------------------------------------------------------------------
# Verify that NULL values into the internal-use-only sqlite_rename_*()
# functions do not cause problems.
#
do_execsql_test alter-17.1 {
  SELECT sqlite_rename_table('CREATE TABLE xyz(a,b,c)','abc');
} {{CREATE TABLE "abc"(a,b,c)}}
do_execsql_test alter-17.2 {
  SELECT sqlite_rename_table('CREATE TABLE xyz(a,b,c)',NULL);
} {{CREATE TABLE "(NULL)"(a,b,c)}}
do_execsql_test alter-17.3 {
  SELECT sqlite_rename_table(NULL,'abc');
} {{}}
do_execsql_test alter-17.4 {
  SELECT sqlite_rename_trigger('CREATE TRIGGER r1 ON xyz WHEN','abc');
} {{CREATE TRIGGER r1 ON "abc" WHEN}}
do_execsql_test alter-17.5 {
  SELECT sqlite_rename_trigger('CREATE TRIGGER r1 ON xyz WHEN',NULL);
} {{CREATE TRIGGER r1 ON "(NULL)" WHEN}}
do_execsql_test alter-17.6 {
  SELECT sqlite_rename_trigger(NULL,'abc');
} {{}}
do_execsql_test alter-17.7 {
  SELECT sqlite_rename_parent('CREATE TABLE t1(a REFERENCES "xyzzy")',
         'xyzzy','lmnop');
} {{CREATE TABLE t1(a REFERENCES "lmnop")}}
do_execsql_test alter-17.8 {
  SELECT sqlite_rename_parent('CREATE TABLE t1(a REFERENCES "xyzzy")',
         'xyzzy',NULL);
} {{CREATE TABLE t1(a REFERENCES "(NULL)")}}
do_execsql_test alter-17.9 {
  SELECT sqlite_rename_parent('CREATE TABLE t1(a REFERENCES "xyzzy")',
         NULL, 'lmnop');
} {{}}
do_execsql_test alter-17.10 {
  SELECT sqlite_rename_parent(NULL,'abc','xyz');
} {{}}
do_execsql_test alter-17.11 {
  SELECT sqlite_rename_parent('create references ''','abc','xyz');
} {{create references '}}
do_execsql_test alter-17.12 {
  SELECT sqlite_rename_parent('create references "abc"123" ','abc','xyz');
} {{create references "xyz"123" }}
do_execsql_test alter-17.13 {
  SELECT sqlite_rename_parent("references '''",'abc','xyz');
} {{references '''}}

finish_test