github.com/jdgcs/sqlite3@v1.12.1-0.20210908114423-bc5f96e4dd51/testdata/tcl/tkt2339.test (about)

     1  # 2007 May 6
     2  #
     3  # The author disclaims copyright to this source code.  In place of
     4  # a legal notice, here is a blessing:
     5  #
     6  #    May you do good and not evil.
     7  #    May you find forgiveness for yourself and forgive others.
     8  #    May you share freely, never taking more than you give.
     9  #
    10  #***********************************************************************
    11  #
    12  # $Id: tkt2339.test,v 1.2 2007/09/12 17:01:45 danielk1977 Exp $
    13  #
    14  
    15  set testdir [file dirname $argv0]
    16  source $testdir/tester.tcl
    17  
    18  ifcapable !subquery||!compound {
    19    finish_test
    20    return
    21  }
    22  
    23  do_test tkt2339.1 {
    24    execsql {
    25      create table t1(num int);
    26      insert into t1 values (1);
    27      insert into t1 values (2);
    28      insert into t1 values (3);
    29      insert into t1 values (4);
    30      
    31      create table t2(num int);
    32      insert into t2 values (11);
    33      insert into t2 values (12);
    34      insert into t2 values (13);
    35      insert into t2 values (14);
    36      
    37      SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
    38      UNION
    39      SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
    40    }
    41  } {3 4 13 14}
    42  do_test tkt2339.2 {
    43    execsql {
    44      SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
    45      UNION ALL
    46      SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
    47    }
    48  } {4 3 14 13}
    49  do_test tkt2339.3 {
    50    execsql {
    51      SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC)
    52      UNION ALL
    53      SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
    54    }
    55  } {4 3 2 1 14 13}
    56  do_test tkt2339.4 {
    57    execsql {
    58      SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
    59      UNION ALL
    60      SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC)
    61    }
    62  } {4 3 14 13 12 11}
    63  do_test tkt2339.5 {
    64    execsql {
    65      SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
    66      UNION
    67      SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC)
    68    }
    69  } {3 4 11 12 13 14}
    70  do_test tkt2339.6 {
    71    execsql {
    72      SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
    73      EXCEPT
    74      SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC)
    75    }
    76  } {3 4}
    77  do_test tkt2339.7 {
    78    execsql {
    79      SELECT * FROM (SELECT * FROM t1 LIMIT 2)
    80      UNION
    81      SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
    82    }
    83  } {1 2 13 14}
    84  do_test tkt2339.8 {
    85    execsql {
    86      SELECT * FROM (SELECT * FROM t1 LIMIT 2)
    87      UNION
    88      SELECT * FROM (SELECT * FROM t2 LIMIT 2)
    89    }
    90  } {1 2 11 12}
    91  do_test tkt2339.9 {
    92    execsql {
    93      SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
    94      UNION
    95      SELECT * FROM (SELECT * FROM t2 LIMIT 2)
    96    }
    97  } {3 4 11 12}
    98  
    99  
   100  finish_test