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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems, Inc.
*
* Authors:
*
* Jay Pipes <jay.pipes@sun.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
*
* Implementation of SQL index hints
*/
#include <config.h>
#include <drizzled/sql_string.h>
#include <drizzled/session.h>
#include <drizzled/index_hint.h>
#include <drizzled/sql_table.h>
namespace drizzled
{
/*
* Names of the index hints (for error messages). Keep in sync with
* index_hint_type
*/
const char *index_hint_type_name[] =
{
"IGNORE INDEX"
, "USE INDEX"
, "FORCE INDEX"
};
/**
* Print an index hint
*
* Prints out the USE|FORCE|IGNORE index hint.
*
* @param Session pointer
* @param[out] Appends the index hint here
*/
void Index_hint::print(Session *session, String *str)
{
str->append(STRING_WITH_LEN(index_hint_type_name[type]));
str->append(STRING_WITH_LEN(" ("));
if (key_name.length)
{
if (session && is_primary_key_name(key_name.str))
str->append(is_primary_key_name(key_name.str));
else
str->append_identifier(key_name.str, key_name.length);
}
str->append(')');
}
} /* namespace drizzled */
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