SQLite

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.324 2007/01/26 19:04:00 drh Exp $
*/
#include "sqliteInt.h"


/*
** Delete all the content of a Select structure but do not deallocate
** the select structure itself.

          /* If [0] is unused then [1] is also unused.  So we can
          ** always safely abort as soon as the first unused slot is found */
          assert( pLoop->addrOpenEphm[1]<0 );
          break;
        }
        sqlite3VdbeChangeP2(v, addr, nCol);
        sqlite3VdbeChangeP3(v, addr, (char*)pKeyInfo, P3_KEYINFO);
        pLoop->addrOpenEphm[i] = -1;
      }
    }

    if( pOrderBy ){
      struct ExprList_item *pOTerm = pOrderBy->a;
      int nOrderByExpr = pOrderBy->nExpr;
      int addr;

# 2007 January 26
#
# 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.
#
# This file implements tests to verify that ticket #2192 has been
# fixed.  
#
#
# $Id: tkt2192.test,v 1.1 2007/01/26 19:04:00 drh Exp $

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


do_test tkt2191-1.1 {
  execsql {
    -- Raw data (RBS) --------
    
    create table records (
      date          real,
      type          text,
      description   text,
      value         integer,
      acc_name      text,
      acc_no        text
    );
    
    -- Direct Debits ----------------
    create view direct_debits as
      select * from records where type = 'D/D';
    
    create view monthly_direct_debits as
      select strftime('%Y-%m', date) as date, (-1 * sum(value)) as value
        from direct_debits
       group by strftime('%Y-%m', date);
    
    -- Expense Categories ---------------
    create view energy as
      select strftime('%Y-%m', date) as date, (-1 * sum(value)) as value
        from direct_debits
       where description like '%NPOWER%'
       group by strftime('%Y-%m', date);
    
    create view phone_internet as
      select strftime('%Y-%m', date) as date, (-1 * sum(value)) as value
        from direct_debits
       where description like '%BT DIRECT%'
          or description like '%SUPANET%'
          or description like '%ORANGE%'
       group by strftime('%Y-%m', date);
    
    create view credit_cards as
      select strftime('%Y-%m', date) as date, (-1 * sum(value)) as value
        from direct_debits where description like '%VISA%'
       group by strftime('%Y-%m', date);
    
    -- Overview ---------------------
    
    create view expense_overview as
      select 'Energy' as expense, date, value from energy
      union
      select 'Phone/Internet' as expense, date, value from phone_internet
      union
      select 'Credit Card' as expense, date, value from credit_cards;
    
    create view jan as
      select 'jan', expense, value from expense_overview
       where date like '%-01';
    
    create view nov as
      select 'nov', expense, value from expense_overview
       where date like '%-11';
    
    create view summary as
      select * from jan join nov on (jan.expense = nov.expense);
  }
} {}
do_test tkt2192-1.2 {
  # set ::sqlite_addop_trace 1
  execsql {
    select * from summary;
  }
} {}
do_test tkt2192-2.1 {
  execsql {
    CREATE TABLE t1(a,b);
    CREATE VIEW v1 AS
      SELECT * FROM t1 WHERE b%7=0 UNION SELECT * FROM t1 WHERE b%5=0;
    INSERT INTO t1 VALUES(1,7);
    INSERT INTO t1 VALUES(2,10);
    INSERT INTO t1 VALUES(3,14);
    INSERT INTO t1 VALUES(4,15);
    INSERT INTO t1 VALUES(1,16);
    INSERT INTO t1 VALUES(2,17);
    INSERT INTO t1 VALUES(3,20);
    INSERT INTO t1 VALUES(4,21);
    INSERT INTO t1 VALUES(1,22);
    INSERT INTO t1 VALUES(2,24);
    INSERT INTO t1 VALUES(3,25);
    INSERT INTO t1 VALUES(4,26);
    INSERT INTO t1 VALUES(1,27);
 
    SELECT b FROM v1 ORDER BY b;
  }
} {7 10 14 15 20 21 25}
do_test tkt2192-2.2 {
  execsql {
    SELECT * FROM v1 ORDER BY a, b;
  }
} {1 7 2 10 3 14 3 20 3 25 4 15 4 21}
do_test tkt2192-2.3 {
  execsql {
    SELECT x.a || '/' || x.b || '/' || y.b
      FROM v1 AS x JOIN v1 AS y ON x.a=y.a AND x.b<y.b
     ORDER BY x.a, x.b, y.b
  }
} {3/14/20 3/14/25 3/20/25 4/15/21}
do_test tkt2192-2.4 {
  execsql {
    CREATE VIEW v2 AS
    SELECT x.a || '/' || x.b || '/' || y.b AS z
      FROM v1 AS x JOIN v1 AS y ON x.a=y.a AND x.b<y.b
     ORDER BY x.a, x.b, y.b;
    SELECT * FROM v2;
  }
} {3/14/20 3/14/25 3/20/25 4/15/21}

finish_test