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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, Inc.
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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_FUNCTION_ROLLUP_CONST_H
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#define DRIZZLED_FUNCTION_ROLLUP_CONST_H
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#include <drizzled/function/func.h>
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Objects of this class are used for ROLLUP queries to wrap up
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each constant item referred to in GROUP BY list.
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class Item_func_rollup_const :public Item_func
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Item_func_rollup_const(Item *a) :Item_func(a)
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name_length= a->name_length;
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double val_real() { return args[0]->val_real(); }
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int64_t val_int() { return args[0]->val_int(); }
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String *val_str(String *str) { return args[0]->val_str(str); }
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type::Decimal *val_decimal(type::Decimal *dec) { return args[0]->val_decimal(dec); }
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const char *func_name() const { return "rollup_const"; }
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bool const_item() const { return 0; }
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Item_result result_type() const { return args[0]->result_type(); }
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void fix_length_and_dec()
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collation= args[0]->collation;
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max_length= args[0]->max_length;
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decimals=args[0]->decimals;
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/* The item could be a NULL constant. */
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null_value= args[0]->is_null();
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} /* namespace drizzled */
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#endif /* DRIZZLED_FUNCTION_ROLLUP_CONST_H */