# 2006 June 10

 #

 # 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.

 #

 # $Id: vtab2.test,v 1.8 2008/01/31 15:53:46 drh Exp $

 set testdir [file dirname $argv0]

 source $testdir/tester.tcl

 ifcapable !vtab||!schema_pragmas {

   finish_test

   return

 }

 register_schema_module [sqlite3_connection_pointer db]

 do_test vtab2-1.1 {

   execsql {

     CREATE VIRTUAL TABLE schema USING schema;

     SELECT * FROM schema;

   }

 } [list \

   main schema 0 database   {} 0 {} 0 \

   main schema 1 tablename  {} 0 {} 0 \

   main schema 2 cid        {} 0 {} 0 \

   main schema 3 name       {} 0 {} 0 \

   main schema 4 type       {} 0 {} 0 \

   main schema 5 not_null   {} 0 {} 0 \

   main schema 6 dflt_value {} 0 {} 0 \

   main schema 7 pk         {} 0 {} 0 \

 ]

 # See ticket #2230.

 #

 do_test vtab2-1.2 {

   execsql {

     SELECT length(tablename) FROM schema GROUP by tablename;

   }

 } {6}

 do_test vtab2-1.3 {

   execsql {

     SELECT tablename FROM schema GROUP by length(tablename);

   }

 } {schema}

 do_test vtab2-1.4 {

   execsql {

     SELECT length(tablename) FROM schema GROUP by length(tablename);

   }

 } {6}

 register_tclvar_module [sqlite3_connection_pointer db]

 do_test vtab2-2.1 {

   set ::abc 123

   execsql {

     CREATE VIRTUAL TABLE vars USING tclvar;

     SELECT * FROM vars WHERE name='abc';

   }

 } [list abc "" 123]

 do_test vtab2-2.2 {

   set A(1) 1

   set A(2) 4

   set A(3) 9

   execsql {

     SELECT * FROM vars WHERE name='A';

   }

 } [list A 1 1 A 2 4 A 3 9]

 unset -nocomplain result

 unset -nocomplain var

 set result {}

 foreach var [lsort [info vars tcl_*]] {

   catch {lappend result $var [set $var]}

 }

 do_test vtab2-2.3 {

   execsql {

     SELECT name, value FROM vars

       WHERE name MATCH 'tcl_*' AND arrayname = '' 

       ORDER BY name;

   }

 } $result

 unset result

 unset var

 # Ticket #2894.

 #

 # Make sure we do call Column(), and Rowid() methods of

 # a virtual table when that table is in a LEFT JOIN.

 #

 do_test vtab2-3.1 {

   execsql {

     SELECT * FROM schema WHERE dflt_value IS NULL LIMIT 1

   }

 } {main schema 0 database {} 0 {} 0}

 do_test vtab2-3.2 {

   execsql {

     SELECT *, b.rowid

       FROM schema a LEFT JOIN schema b ON a.dflt_value=b.dflt_value

      WHERE a.rowid=1

   }

 } {main schema 0 database {} 0 {} 0 {} {} {} {} {} {} {} {} {}}

 finish_test