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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_SET_USER_VAR_H
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#define DRIZZLED_FUNCTIONS_SET_USER_VAR_H
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#include <drizzled/functions/func.h>
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/* Handling of user definable variables */
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class Item_func_set_user_var :public Item_func
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enum Item_result cached_result_type;
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user_var_entry *entry;
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char buffer[MAX_FIELD_WIDTH];
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my_decimal decimal_buff;
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LEX_STRING name; // keep it public
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Item_func_set_user_var(LEX_STRING a,Item *b)
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:Item_func(b), cached_result_type(INT_RESULT), name(a)
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enum Functype functype() const { return SUSERVAR_FUNC; }
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String *val_str(String *str);
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my_decimal *val_decimal(my_decimal *);
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int64_t val_int_result();
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String *str_result(String *str);
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my_decimal *val_decimal_result(my_decimal *);
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bool update_hash(void *ptr, uint32_t length, enum Item_result type,
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const CHARSET_INFO * const cs, Derivation dv, bool unsigned_arg);
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bool send(Protocol *protocol, String *str_arg);
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void make_field(Send_field *tmp_field);
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bool check(bool use_result_field);
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enum Item_result result_type () const { return cached_result_type; }
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bool fix_fields(Session *session, Item **ref);
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void fix_length_and_dec();
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virtual void print(String *str, enum_query_type query_type);
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void print_as_stmt(String *str, enum_query_type query_type);
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const char *func_name() const { return "set_user_var"; }
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int save_in_field(Field *field, bool no_conversions,
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bool can_use_result_field);
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int save_in_field(Field *field, bool no_conversions)
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return save_in_field(field, no_conversions, 1);
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void save_org_in_field(Field *field) { (void)save_in_field(field, 1, 0); }
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bool register_field_in_read_map(unsigned char *arg);
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bool register_field_in_bitmap(unsigned char *arg);
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#endif /* DRIZZLED_FUNCTIONS_SET_USER_VAR_H */