modernc.org/cc@v1.0.1/v2/testdata/_sqlite/test/unordered.test (about)

     1  # 2011 April 9
     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.  
    12  #
    13  
    14  set testdir [file dirname $argv0]
    15  source $testdir/tester.tcl
    16  
    17  set testprefix unordered
    18  
    19  do_execsql_test 1.0 {
    20    CREATE TABLE t1(a, b);
    21    CREATE INDEX i1 ON t1(a);
    22    INSERT INTO t1 VALUES(1, 'xxx');
    23    INSERT INTO t1 SELECT a+1, b FROM t1;
    24    INSERT INTO t1 SELECT a+2, b FROM t1;
    25    INSERT INTO t1 SELECT a+4, b FROM t1;
    26    INSERT INTO t1 SELECT a+8, b FROM t1;
    27    INSERT INTO t1 SELECT a+16, b FROM t1;
    28    INSERT INTO t1 SELECT a+32, b FROM t1;
    29    INSERT INTO t1 SELECT a+64, b FROM t1;
    30    ANALYZE;
    31  } {}
    32  
    33  foreach idxmode {ordered unordered} {
    34    catchsql { DELETE FROM sqlite_stat2 }
    35    catchsql { DELETE FROM sqlite_stat3 }
    36    if {$idxmode == "unordered"} {
    37      execsql { UPDATE sqlite_stat1 SET stat = stat || ' unordered' }
    38    }
    39    db close
    40    sqlite3 db test.db
    41    foreach {tn sql r(ordered) r(unordered)} {
    42      1   "SELECT * FROM t1 ORDER BY a"
    43          {0 0 0 {SCAN TABLE t1 USING INDEX i1}}
    44          {0 0 0 {SCAN TABLE t1} 0 0 0 {USE TEMP B-TREE FOR ORDER BY}}
    45      2   "SELECT * FROM t1 WHERE a > 100"
    46          {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a>?)}}
    47          {0 0 0 {SCAN TABLE t1}}
    48      3   "SELECT * FROM t1 WHERE a = ? ORDER BY rowid"
    49          {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a=?)}}
    50          {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a=?)} 
    51           0 0 0 {USE TEMP B-TREE FOR ORDER BY}}
    52      4   "SELECT max(a) FROM t1"
    53          {0 0 0 {SEARCH TABLE t1 USING COVERING INDEX i1}}
    54          {0 0 0 {SEARCH TABLE t1}}
    55      5   "SELECT group_concat(b) FROM t1 GROUP BY a"
    56          {0 0 0 {SCAN TABLE t1 USING INDEX i1}}
    57          {0 0 0 {SCAN TABLE t1} 0 0 0 {USE TEMP B-TREE FOR GROUP BY}}
    58  
    59      6   "SELECT * FROM t1 WHERE a = ?"
    60          {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a=?)}}
    61          {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a=?)}}
    62      7   "SELECT count(*) FROM t1"
    63          {0 0 0 {SCAN TABLE t1 USING COVERING INDEX i1}}
    64          {0 0 0 {SCAN TABLE t1}}
    65    } {
    66      do_eqp_test 1.$idxmode.$tn $sql $r($idxmode)
    67    }
    68  }
    69  
    70  finish_test