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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2008 Sun Microsystems
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include <drizzled/server_includes.h>
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#include <drizzled/protocol.h>
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#include <drizzled/item/null.h>
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bool Item_null::eq(const Item *item, bool) const
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{ return item->type() == type(); }
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double Item_null::val_real()
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// following assert is redundant, because fixed=1 assigned in constructor
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int64_t Item_null::val_int()
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// following assert is redundant, because fixed=1 assigned in constructor
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String *Item_null::val_str(String *)
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// following assert is redundant, because fixed=1 assigned in constructor
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my_decimal *Item_null::val_decimal(my_decimal *)
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Item *Item_null::safe_charset_converter(const CHARSET_INFO * const tocs)
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This is used on INSERT.
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Allow NULL to be inserted in timestamp and auto_increment values.
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@param field Field where we want to store NULL
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1 Field doesn't support NULL values and can't handle 'field = NULL'
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int Item_null::save_in_field(Field *field, bool no_conversions)
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return set_field_to_null_with_conversions(field, no_conversions);
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@param field Field where we want to store NULL
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1 Field doesn't support NULL values
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int Item_null::save_safe_in_field(Field *field)
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return set_field_to_null(field);
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Pack data in buffer for sending.
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bool Item_null::send(Protocol *protocol,
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return protocol->store_null();