sl@0: # 2005 July 28
sl@0: #
sl@0: # The author disclaims copyright to this source code.  In place of
sl@0: # a legal notice, here is a blessing:
sl@0: #
sl@0: #    May you do good and not evil.
sl@0: #    May you find forgiveness for yourself and forgive others.
sl@0: #    May you share freely, never taking more than you give.
sl@0: #
sl@0: #***********************************************************************
sl@0: # This file implements regression tests for SQLite library.  The
sl@0: # focus of this file is testing the use of indices in WHERE clauses
sl@0: # when the WHERE clause contains the BETWEEN operator.
sl@0: #
sl@0: # $Id: between.test,v 1.2 2006/01/17 09:35:02 danielk1977 Exp $
sl@0: 
sl@0: set testdir [file dirname $argv0]
sl@0: source $testdir/tester.tcl
sl@0: 
sl@0: # Build some test data
sl@0: #
sl@0: do_test between-1.0 {
sl@0:   execsql {
sl@0:     BEGIN;
sl@0:     CREATE TABLE t1(w int, x int, y int, z int);
sl@0:   }
sl@0:   for {set i 1} {$i<=100} {incr i} {
sl@0:     set w $i
sl@0:     set x [expr {int(log($i)/log(2))}]
sl@0:     set y [expr {$i*$i + 2*$i + 1}]
sl@0:     set z [expr {$x+$y}]
sl@0:     ifcapable tclvar {
sl@0:       # Random unplanned test of the $varname variable syntax.
sl@0:       execsql {INSERT INTO t1 VALUES($::w,$::x,$::y,$::z)}
sl@0:     } else {
sl@0:       # If the $varname syntax is not available, use the regular variable
sl@0:       # declaration syntax.
sl@0:       execsql {INSERT INTO t1 VALUES(:w,:x,:y,:z)}
sl@0:     }
sl@0:   }
sl@0:   execsql {
sl@0:     CREATE UNIQUE INDEX i1w ON t1(w);
sl@0:     CREATE INDEX i1xy ON t1(x,y);
sl@0:     CREATE INDEX i1zyx ON t1(z,y,x);
sl@0:     COMMIT;
sl@0:   }
sl@0: } {}
sl@0: 
sl@0: # This procedure executes the SQL.  Then it appends to the result the
sl@0: # "sort" or "nosort" keyword depending on whether or not any sorting
sl@0: # is done.  Then it appends the ::sqlite_query_plan variable.
sl@0: #
sl@0: proc queryplan {sql} {
sl@0:   set ::sqlite_sort_count 0
sl@0:   set data [execsql $sql]
sl@0:   if {$::sqlite_sort_count} {set x sort} {set x nosort}
sl@0:   lappend data $x
sl@0:   return [concat $data $::sqlite_query_plan]
sl@0: }
sl@0: 
sl@0: do_test between-1.1.1 {
sl@0:   queryplan {
sl@0:     SELECT * FROM t1 WHERE w BETWEEN 5 AND 6 ORDER BY +w
sl@0:   }
sl@0: } {5 2 36 38 6 2 49 51 sort t1 i1w}
sl@0: do_test between-1.1.2 {
sl@0:   queryplan {
sl@0:     SELECT * FROM t1 WHERE +w BETWEEN 5 AND 6 ORDER BY +w
sl@0:   }
sl@0: } {5 2 36 38 6 2 49 51 sort t1 {}}
sl@0: do_test between-1.2.1 {
sl@0:   queryplan {
sl@0:     SELECT * FROM t1 WHERE w BETWEEN 5 AND 65-y ORDER BY +w
sl@0:   }
sl@0: } {5 2 36 38 6 2 49 51 sort t1 i1w}
sl@0: do_test between-1.2.2 {
sl@0:   queryplan {
sl@0:     SELECT * FROM t1 WHERE +w BETWEEN 5 AND 65-y ORDER BY +w
sl@0:   }
sl@0: } {5 2 36 38 6 2 49 51 sort t1 {}}
sl@0: do_test between-1.3.1 {
sl@0:   queryplan {
sl@0:     SELECT * FROM t1 WHERE w BETWEEN 41-y AND 6 ORDER BY +w
sl@0:   }
sl@0: } {5 2 36 38 6 2 49 51 sort t1 i1w}
sl@0: do_test between-1.3.2 {
sl@0:   queryplan {
sl@0:     SELECT * FROM t1 WHERE +w BETWEEN 41-y AND 6 ORDER BY +w
sl@0:   }
sl@0: } {5 2 36 38 6 2 49 51 sort t1 {}}
sl@0: do_test between-1.4 {
sl@0:   queryplan {
sl@0:     SELECT * FROM t1 WHERE w BETWEEN 41-y AND 65-y ORDER BY +w
sl@0:   }
sl@0: } {5 2 36 38 6 2 49 51 sort t1 {}}
sl@0: do_test between-1.5.1 {
sl@0:   queryplan {
sl@0:     SELECT * FROM t1 WHERE 26 BETWEEN y AND z ORDER BY +w
sl@0:   }
sl@0: } {4 2 25 27 sort t1 i1zyx}
sl@0: do_test between-1.5.2 {
sl@0:   queryplan {
sl@0:     SELECT * FROM t1 WHERE 26 BETWEEN +y AND z ORDER BY +w
sl@0:   }
sl@0: } {4 2 25 27 sort t1 i1zyx}
sl@0: do_test between-1.5.3 {
sl@0:   queryplan {
sl@0:     SELECT * FROM t1 WHERE 26 BETWEEN y AND +z ORDER BY +w
sl@0:   }
sl@0: } {4 2 25 27 sort t1 {}}
sl@0: 
sl@0: 
sl@0: finish_test