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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/item/cache_str.h>
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Item_cache_str::Item_cache_str(const Item *item) :
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Item_cache(), value(0),
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is_varbinary(item->type() == FIELD_ITEM &&
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((const Item_field *) item)->field->type() ==
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DRIZZLE_TYPE_VARCHAR &&
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!((const Item_field *) item)->field->has_charset())
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void Item_cache_str::store(Item *item)
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value_buff.set(buffer, sizeof(buffer), item->collation.collation);
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value= item->str_result(&value_buff);
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if ((null_value= item->null_value))
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else if (value != &value_buff)
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We copy string value to avoid changing value if 'item' is table field
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in queries like following (where t1.c is varchar):
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(select a,b,c from t1 where t1.a=t2.a) = ROW(a,2,'a'),
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(select c from t1 where a=t2.a)
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value_buff.copy(*value);
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double Item_cache_str::val_real()
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return my_strntod(value->charset(), (char*) value->ptr(),
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value->length(), &end_not_used, &err_not_used);
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int64_t Item_cache_str::val_int()
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return my_strntoll(value->charset(), value->ptr(),
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value->length(), 10, (char**) 0, &err);
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my_decimal *Item_cache_str::val_decimal(my_decimal *decimal_val)
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string2my_decimal(E_DEC_FATAL_ERROR, value, decimal_val);
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int Item_cache_str::save_in_field(Field *field, bool no_conversions)
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int res= Item_cache::save_in_field(field, no_conversions);