test/quote.test

# 2001 September 15
#
# 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 file is the ability to specify table and column names
# as quoted strings.
#
# $Id: quote.test,v 1.7 2007/04/25 11:32:30 drh Exp $

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

# Create a table with a strange name and with strange column names.
#
do_test quote-1.0 {
  catchsql {CREATE TABLE '@abc' ( '#xyz' int, '!pqr' text );}
} {0 {}}

# Insert, update and query the table.
#
do_test quote-1.1 {
  catchsql {INSERT INTO '@abc' VALUES(5,'hello')}
} {0 {}}
do_test quote-1.2.1 {
  catchsql {SELECT * FROM '@abc'}
} {0 {5 hello}}
do_test quote-1.2.2 {
  catchsql {SELECT * FROM [@abc]}  ;# SqlServer compatibility
} {0 {5 hello}}
do_test quote-1.2.3 {
  catchsql {SELECT * FROM `@abc`}  ;# MySQL compatibility
} {0 {5 hello}}
do_test quote-1.3 {
  catchsql {
    SELECT '@abc'.'!pqr', '@abc'.'#xyz'+5 FROM '@abc'
  }
} {0 {hello 10}}
do_test quote-1.3.1 {
  catchsql {
    SELECT '!pqr', '#xyz'+5 FROM '@abc'
  }
} {0 {!pqr 5}}
do_test quote-1.3.2 {
  catchsql {
    SELECT "!pqr", "#xyz"+5 FROM '@abc'
  }
} {0 {hello 10}}
do_test quote-1.3.3 {
  catchsql {
    SELECT [!pqr], `#xyz`+5 FROM '@abc'
  }
} {0 {hello 10}}
do_test quote-1.3.4 {
  set r [catch {
    execsql {SELECT '@abc'.'!pqr', '@abc'.'#xyz'+5 FROM '@abc'}
  } msg ]
  lappend r $msg
} {0 {hello 10}}
do_test quote-1.4 {
  set r [catch {
    execsql {UPDATE '@abc' SET '#xyz'=11}
  } msg ]
  lappend r $msg
} {0 {}}
do_test quote-1.5 {
  set r [catch {
    execsql {SELECT '@abc'.'!pqr', '@abc'.'#xyz'+5 FROM '@abc'}
  } msg ]
  lappend r $msg
} {0 {hello 16}}

# Drop the table with the strange name.
#
do_test quote-1.6 {
  set r [catch {
    execsql {DROP TABLE '@abc'}
  } msg ]
  lappend r $msg
} {0 {}}

#-------------------------------------------------------------------------
# Check that it is not possible to use double-quotes for a string
# constant in a CHECK constraint or CREATE INDEX statement. However, 
# SQLite can load such a schema from disk.
#
reset_db 
sqlite3_db_config db SQLITE_DBCONFIG_DQS_DDL 0
sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1
do_execsql_test 2.0 {
  CREATE TABLE t1(x, y, z);
}
foreach {tn sql errname} {
  1 { CREATE TABLE xyz(a, b, c CHECK (c!="null") ) } null
  2 { CREATE INDEX i2 ON t1(x, y, z||"abc") }        abc
  3 { CREATE INDEX i3 ON t1("w") }                   w
  4 { CREATE INDEX i4 ON t1(x) WHERE z="w" }         w
} {
  do_catchsql_test 2.1.$tn $sql [list 1 "no such column: $errname"]
}

do_execsql_test 2.2 {
  PRAGMA writable_schema = 1;
  CREATE TABLE xyz(a, b, c CHECK (c!="null") );
  CREATE INDEX i2 ON t1(x, y, z||"abc");
  CREATE INDEX i3 ON t1("w"||"");
  CREATE INDEX i4 ON t1(x) WHERE z="w";
}

db close
sqlite3 db test.db

do_execsql_test 2.3.1 {
  INSERT INTO xyz VALUES(1, 2, 3);
}
do_catchsql_test 2.3.2 {
  INSERT INTO xyz VALUES(1, 2, 'null');
} {1 {CHECK constraint failed: c!="null"}}

do_execsql_test 2.4 {
  INSERT INTO t1 VALUES(1, 2, 3);
  INSERT INTO t1 VALUES(4, 5, 'w');
  SELECT * FROM t1 WHERE z='w';
} {4 5 w}
do_execsql_test 2.5 {
  SELECT sql FROM sqlite_master;
} {
  {CREATE TABLE t1(x, y, z)}
  {CREATE TABLE xyz(a, b, c CHECK (c!="null") )}
  {CREATE INDEX i2 ON t1(x, y, z||"abc")}
  {CREATE INDEX i3 ON t1("w"||"")}
  {CREATE INDEX i4 ON t1(x) WHERE z="w"}
}

# 2021-03-13
# ticket 1c24a659e6d7f3a1
reset_db
do_catchsql_test 3.0 {
  CREATE TABLE t1(a,b);
  CREATE INDEX x1 on t1("b");
  ALTER TABLE t1 DROP COLUMN b;
} {1 {error in index x1 after drop column: no such column: b}}
do_catchsql_test 3.1 {
  DROP TABLE t1;
  CREATE TABLE t1(a,"b");
  CREATE INDEX x1 on t1("b");
  ALTER TABLE t1 DROP COLUMN b;
} {1 {error in index x1 after drop column: no such column: b}}
do_catchsql_test 3.2 {
  DROP TABLE t1;
  CREATE TABLE t1(a,'b');
  CREATE INDEX x1 on t1("b");
  ALTER TABLE t1 DROP COLUMN b;
} {1 {error in index x1 after drop column: no such column: b}}
do_catchsql_test 3.3 {
  DROP TABLE t1;
  CREATE TABLE t1(a,"b");
  CREATE INDEX x1 on t1('b');
  ALTER TABLE t1 DROP COLUMN b;
} {1 {error in index x1 after drop column: no such column: b}}
do_catchsql_test 3.4 {
  DROP TABLE t1;
  CREATE TABLE t1(a, b, c);
  CREATE INDEX x1 ON t1("a"||"b");
  INSERT INTO t1 VALUES(1,2,3),(1,4,5);
  ALTER TABLE t1 DROP COLUMN b;
} {1 {error in index x1 after drop column: no such column: b}}
do_catchsql_test 3.5 {
  DROP TABLE t1;
  CREATE TABLE t1(a, b, c);
  CREATE INDEX x1 ON t1("a"||"x");
  INSERT INTO t1 VALUES(1,2,3),(1,4,5);
  ALTER TABLE t1 DROP COLUMN b;
} {0 {}}

finish_test