github.com/jdgcs/sqlite3@v1.12.1-0.20210908114423-bc5f96e4dd51/testdata/tcl/orderby4.test (about)

     1  # 2013 March 26
     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  # This file implements regression tests for SQLite library.  The
    12  # focus of this file is testing that the optimizations that disable
    13  # ORDER BY clauses work correctly on multi-value primary keys and
    14  # unique indices when only some prefix of the terms in the key are
    15  # used.  See ticket http://www.sqlite.org/src/info/a179fe74659
    16  #
    17  
    18  
    19  set testdir [file dirname $argv0]
    20  source $testdir/tester.tcl
    21  set ::testprefix orderby4
    22  
    23  # Generate test data for a join.  Verify that the join gets the
    24  # correct answer.
    25  #
    26  do_execsql_test 1.1 {
    27    CREATE TABLE t1(a, b, PRIMARY KEY(a,b));
    28    INSERT INTO t1 VALUES(1,1),(1,2);
    29    CREATE TABLE t2(x, y, PRIMARY KEY(x,y));
    30    INSERT INTO t2 VALUES(3,3),(4,4);
    31    SELECT a, x FROM t1, t2 ORDER BY 1, 2;
    32  } {1 3 1 3 1 4 1 4}
    33  do_execsql_test 1.2 {
    34    SELECT a, x FROM t1 CROSS JOIN t2 ORDER BY 1, 2;
    35  } {1 3 1 3 1 4 1 4}
    36  do_execsql_test 1.3 {
    37    SELECT a, x FROM t2 CROSS JOIN t1 ORDER BY 1, 2;
    38  } {1 3 1 3 1 4 1 4}
    39  
    40  do_execsql_test 2.1 {
    41    CREATE TABLE t3(a);
    42    INSERT INTO t3 VALUES(1),(1);
    43    CREATE INDEX t3a ON t3(a);
    44    CREATE TABLE t4(x);
    45    INSERT INTO t4 VALUES(3),(4);
    46    CREATE INDEX t4x ON t4(x);
    47    SELECT a, x FROM t3, t4 ORDER BY 1, 2;
    48  } {1 3 1 3 1 4 1 4}
    49  do_execsql_test 2.2 {
    50    SELECT a, x FROM t3 CROSS JOIN t4 ORDER BY 1, 2;
    51  } {1 3 1 3 1 4 1 4}
    52  do_execsql_test 2.3 {
    53    SELECT a, x FROM t4 CROSS JOIN t3 ORDER BY 1, 2;
    54  } {1 3 1 3 1 4 1 4}
    55  
    56  finish_test