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Initial revision

# 2009 February 23
#
# 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 testing the reverse_select_order pragma.
#
# $Id: whereA.test,v 1.1 2012/02/21 17:04:16 misho Exp $

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

do_test whereA-1.1 {
  db eval {
    CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE, c);
    INSERT INTO t1 VALUES(1,2,3);
    INSERT INTO t1 values(2,'hello','world');
    INSERT INTO t1 VALUES(3,4.53,NULL);
    SELECT * FROM t1
  }
} {1 2 3 2 hello world 3 4.53 {}}
do_test whereA-1.2 {
  db eval {
    PRAGMA reverse_unordered_selects=1;
    SELECT * FROM t1;
  }
} {3 4.53 {} 2 hello world 1 2 3}

do_test whereA-1.3 {
  db close
  sqlite3 db test.db
  db eval {
    PRAGMA reverse_unordered_selects=1;
    SELECT * FROM t1;
  }
} {3 4.53 {} 2 hello world 1 2 3}
do_test whereA-1.4 {
  db close
  sqlite3 db test.db
  db eval {
    PRAGMA reverse_unordered_selects=1;
    SELECT * FROM t1 ORDER BY rowid;
  }
} {1 2 3 2 hello world 3 4.53 {}}
do_test whereA-1.5 {
  db eval {
    VACUUM;
    SELECT * FROM t1 ORDER BY rowid;
  }
} {1 2 3 2 hello world 3 4.53 {}}
do_test whereA-1.6 {
  db eval {
    PRAGMA reverse_unordered_selects;
  }
} {1}
do_test whereA-1.7 {
  db close
  sqlite3 db test.db
  db eval {
    PRAGMA reverse_unordered_selects=1;
    VACUUM;
    SELECT * FROM t1;
  }
} {3 4.53 {} 2 hello world 1 2 3}

do_test whereA-2.1 {
  db eval {
    PRAGMA reverse_unordered_selects=0;
    SELECT * FROM t1 WHERE a>0;
  }
} {1 2 3 2 hello world 3 4.53 {}}
do_test whereA-2.2 {
  db eval {
    PRAGMA reverse_unordered_selects=1;
    SELECT * FROM t1 WHERE a>0;
  }
} {3 4.53 {} 2 hello world 1 2 3}

do_test whereA-2.3 {
  db eval {
    PRAGMA reverse_unordered_selects=1;
    SELECT * FROM t1 WHERE a>0 ORDER BY rowid;
  }
} {1 2 3 2 hello world 3 4.53 {}}

do_test whereA-3.1 {
  db eval {
    PRAGMA reverse_unordered_selects=0;
    SELECT * FROM t1 WHERE b>0;
  }
} {1 2 3 3 4.53 {} 2 hello world}
do_test whereA-3.2 {
  db eval {
    PRAGMA reverse_unordered_selects=1;
    SELECT * FROM t1 WHERE b>0;
  }
} {2 hello world 3 4.53 {} 1 2 3}
do_test whereA-3.3 {
  db eval {
    PRAGMA reverse_unordered_selects=1;
    SELECT * FROM t1 WHERE b>0 ORDER BY b;
  }
} {1 2 3 3 4.53 {} 2 hello world}

do_test whereA-4.1 {
  db eval {
    CREATE TABLE t2(x);
    INSERT INTO t2 VALUES(1);
    INSERT INTO t2 VALUES(2);
    SELECT x FROM t2;
  }
} {2 1}
# Do an SQL statement.  Append the search count to the end of the result.
#
proc count sql {
  set ::sqlite_sort_count 0
  return [concat [execsql $sql] $::sqlite_sort_count]
}
do_test whereA-4.2 {   ;# Ticket #3904
  db eval {
    CREATE INDEX t2x ON t2(x);
  }
  count {
    SELECT x FROM t2;
  }
} {2 1 0}
do_test whereA-4.3 {
  count {
    SELECT x FROM t2 ORDER BY x;
  }
} {1 2 0}
do_test whereA-4.4 {
  count {
    SELECT x FROM t2 ORDER BY x DESC;
  }
} {2 1 0}
do_test whereA-4.5 {
  db eval {DROP INDEX t2x;}
  count {
    SELECT x FROM t2 ORDER BY x;
  }
} {1 2 1}
do_test whereA-4.6 {
  count {
    SELECT x FROM t2 ORDER BY x DESC;
  }
} {2 1 1}


finish_test