**     CREATE INDEX
**     DROP INDEX
**     creating ID lists
**     BEGIN TRANSACTION
**     COMMIT
**     ROLLBACK
**
** $Id: build.c,v 1.314 2005/03/17 05:03:39 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** This routine is called when a new SQL statement is beginning to
** be parsed.  Initialize the pParse structure as needed.
................................................................................
** is added to the internal hash tables, assuming no errors have
** occurred.
**
** An entry for the table is made in the master table on disk, unless
** this is a temporary table or db->init.busy==1.  When db->init.busy==1
** it means we are reading the sqlite_master table because we just
** connected to the database or because the sqlite_master table has
** recently changes, so the entry for this table already exists in
** the sqlite_master table.  We do not want to create it again.
**
** If the pSelect argument is not NULL, it means that this routine
** was called to create a table generated from a 
** "CREATE TABLE ... AS SELECT ..." statement.  The column names of
** the new table will match the result set of the SELECT.
*/

**     CREATE INDEX
**     DROP INDEX
**     creating ID lists
**     BEGIN TRANSACTION
**     COMMIT
**     ROLLBACK
**
** $Id: build.c,v 1.315 2005/03/19 01:41:21 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** This routine is called when a new SQL statement is beginning to
** be parsed.  Initialize the pParse structure as needed.
................................................................................
** is added to the internal hash tables, assuming no errors have
** occurred.
**
** An entry for the table is made in the master table on disk, unless
** this is a temporary table or db->init.busy==1.  When db->init.busy==1
** it means we are reading the sqlite_master table because we just
** connected to the database or because the sqlite_master table has
** recently changed, so the entry for this table already exists in
** the sqlite_master table.  We do not want to create it again.
**
** If the pSelect argument is not NULL, it means that this routine
** was called to create a table generated from a 
** "CREATE TABLE ... AS SELECT ..." statement.  The column names of
** the new table will match the result set of the SELECT.
*/

#
# Run this Tcl script to generate the lang-*.html files.
#
set rcsid {$Id: lang.tcl,v 1.85 2005/03/17 05:03:40 danielk1977 Exp $}
source common.tcl

if {[llength $argv]>0} {
  set outputdir [lindex $argv 0]
} else {
  set outputdir ""
}
................................................................................
<ul>
<li>The column may not have a PRIMARY KEY or UNIQUE constraint.</li>
<li>The column may not have a default value of CURRENT_TIME, CURRENT_DATE 
    or CURRENT_TIMESTAMP.</li>
<li>If a NOT NULL constraint is specified, then the column must have a
    default value other than NULL.
</ul>





}

Section {ATTACH DATABASE} attach

Syntax {sql-statement} {
ATTACH [DATABASE] <database-filename> AS <database-name>
}

#
# Run this Tcl script to generate the lang-*.html files.
#
set rcsid {$Id: lang.tcl,v 1.86 2005/03/19 01:41:22 drh Exp $}
source common.tcl

if {[llength $argv]>0} {
  set outputdir [lindex $argv 0]
} else {
  set outputdir ""
}
................................................................................
<ul>
<li>The column may not have a PRIMARY KEY or UNIQUE constraint.</li>
<li>The column may not have a default value of CURRENT_TIME, CURRENT_DATE 
    or CURRENT_TIMESTAMP.</li>
<li>If a NOT NULL constraint is specified, then the column must have a
    default value other than NULL.
</ul>

<p>The execution time of the ALTER TABLE command is independent of
the amount of data in the table.  The ALTER TABLE command runs as quickly
on a table with 10 million rows as it does on a table with 1 row.
</p>
}

Section {ATTACH DATABASE} attach

Syntax {sql-statement} {
ATTACH [DATABASE] <database-filename> AS <database-name>
}

#
# Run this script to generated a omitted.html output file
#
set rcsid {$Id: omitted.tcl,v 1.7 2005/01/21 18:19:29 drh Exp $}
source common.tcl
header {SQL Features That SQLite Does Not Implement}
puts {
<h2>SQL Features That SQLite Does Not Implement</h2>

<p>
Rather than try to list all the features of SQL92 that SQLite does
................................................................................
  There is some support for triggers but it is not complete.  Missing
  subfeatures include FOR EACH STATEMENT triggers (currently all triggers
  must be FOR EACH ROW), INSTEAD OF triggers on tables (currently 
  INSTEAD OF triggers are only allowed on views), and recursive
  triggers - triggers that trigger themselves.
}

feature {ALTER TABLE} {
  To change a table you have to delete it (saving its contents to a temporary
  table) and recreate it from scratch.
  ("ALTER TABLE ... RENAME TABLE ..." was added to version 3.1.0.)

}

feature {Nested transactions} {
  The current implementation only allows a single active transaction.
}

feature {The COUNT(DISTINCT X) function} {

#
# Run this script to generated a omitted.html output file
#
set rcsid {$Id: omitted.tcl,v 1.8 2005/03/19 01:41:22 drh Exp $}
source common.tcl
header {SQL Features That SQLite Does Not Implement}
puts {
<h2>SQL Features That SQLite Does Not Implement</h2>

<p>
Rather than try to list all the features of SQL92 that SQLite does
................................................................................
  There is some support for triggers but it is not complete.  Missing
  subfeatures include FOR EACH STATEMENT triggers (currently all triggers
  must be FOR EACH ROW), INSTEAD OF triggers on tables (currently 
  INSTEAD OF triggers are only allowed on views), and recursive
  triggers - triggers that trigger themselves.
}

feature {Complete ALTER TABLE support} {
  Only the RENAME TABLE and ADD COLUMN variants of the 
  ALTER TABLE command are supported.  Other kinds of ALTER TABLE operations
  such as
  DROP COLUMN, ALTER COLUMN, ADD CONSTRAINT, and so forth are omitted.
}

feature {Nested transactions} {
  The current implementation only allows a single active transaction.
}

feature {The COUNT(DISTINCT X) function} {