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sqlite3

    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 (~128 rows)}}
   44:         {0 0 0 {SCAN TABLE t1 (~128 rows)} 0 0 0 {USE TEMP B-TREE FOR ORDER BY}}
   45:     2   "SELECT * FROM t1 WHERE a >?"
   46:         {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a>?) (~32 rows)}}
   47:         {0 0 0 {SCAN TABLE t1 (~42 rows)}}
   48:     3   "SELECT * FROM t1 WHERE a = ? ORDER BY rowid"
   49:         {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a=?) (~1 rows)}}
   50:         {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a=?) (~1 rows)} 
   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 (~1 rows)}}
   54:         {0 0 0 {SEARCH TABLE t1 (~1 rows)}}
   55:     5   "SELECT group_concat(b) FROM t1 GROUP BY a"
   56:         {0 0 0 {SCAN TABLE t1 USING INDEX i1 (~128 rows)}}
   57:         {0 0 0 {SCAN TABLE t1 (~128 rows)} 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=?) (~1 rows)}}
   61:         {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a=?) (~1 rows)}}
   62:     7   "SELECT count(*) FROM t1"
   63:         {0 0 0 {SCAN TABLE t1 USING COVERING INDEX i1(~128 rows)}}
   64:         {0 0 0 {SCAN TABLE t1 (~128 rows)}}
   65:   } {
   66:     do_eqp_test 1.$idxmode.$tn $sql $r($idxmode)
   67:   }
   68: }
   69: 
   70: finish_test