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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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#ifndef DRIZZLED_FUNCTIONS_MIN_MAX_H
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#define DRIZZLED_FUNCTIONS_MIN_MAX_H
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#include <drizzled/functions/func.h>
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class Item_func_min_max :public Item_func
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/* TRUE <=> arguments should be compared in the DATETIME context. */
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bool compare_as_dates;
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/* An item used for issuing warnings while string to DATETIME conversion. */
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enum_field_types cached_field_type;
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Item_func_min_max(List<Item> &list,int cmp_sign_arg) :Item_func(list),
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cmp_type(INT_RESULT), cmp_sign(cmp_sign_arg), compare_as_dates(false),
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String *val_str(String *);
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my_decimal *val_decimal(my_decimal *);
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void fix_length_and_dec();
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enum Item_result result_type () const { return cmp_type; }
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bool result_as_int64_t() { return compare_as_dates; };
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uint32_t cmp_datetimes(uint64_t *value);
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enum_field_types field_type() const { return cached_field_type; }
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class Item_func_min :public Item_func_min_max
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Item_func_min(List<Item> &list) :Item_func_min_max(list,1) {}
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const char *func_name() const { return "least"; }
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class Item_func_max :public Item_func_min_max
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Item_func_max(List<Item> &list) :Item_func_min_max(list,-1) {}
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const char *func_name() const { return "greatest"; }
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#endif /* DRIZZLED_FUNCTIONS_MIN_MAX_H */