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492.3.31
by Lee
more changes to move functions from item_func.cc/h to the functions directory |
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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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*
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* Copyright (C) 2008 Sun Microsystems
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*
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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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*
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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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*
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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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*/
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#include <drizzled/server_includes.h> |
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#include CSTDINT_H
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#include <drizzled/functions/field.h> |
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584.4.7
by Monty Taylor
Removed a big bank of includes from item.h. |
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#include <drizzled/item/cmpfunc.h> |
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492.3.31
by Lee
more changes to move functions from item_func.cc/h to the functions directory |
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// Conversion functions
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int64_t Item_func_field::val_int() |
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{
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assert(fixed == 1); |
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if (cmp_type == STRING_RESULT) |
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{
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String *field; |
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if (!(field= args[0]->val_str(&value))) |
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return 0; |
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for (uint32_t i=1 ; i < arg_count ; i++) |
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{
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String *tmp_value=args[i]->val_str(&tmp); |
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if (tmp_value && !sortcmp(field,tmp_value,cmp_collation.collation)) |
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return (int64_t) (i); |
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}
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}
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else if (cmp_type == INT_RESULT) |
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{
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int64_t val= args[0]->val_int(); |
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if (args[0]->null_value) |
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return 0; |
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for (uint32_t i=1; i < arg_count ; i++) |
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{
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if (val == args[i]->val_int() && !args[i]->null_value) |
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return (int64_t) (i); |
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}
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}
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else if (cmp_type == DECIMAL_RESULT) |
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{
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my_decimal dec_arg_buf, *dec_arg, |
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dec_buf, *dec= args[0]->val_decimal(&dec_buf); |
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if (args[0]->null_value) |
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return 0; |
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for (uint32_t i=1; i < arg_count; i++) |
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{
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dec_arg= args[i]->val_decimal(&dec_arg_buf); |
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if (!args[i]->null_value && !my_decimal_cmp(dec_arg, dec)) |
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return (int64_t) (i); |
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}
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}
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else
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{
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double val= args[0]->val_real(); |
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if (args[0]->null_value) |
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return 0; |
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for (uint32_t i=1; i < arg_count ; i++) |
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{
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if (val == args[i]->val_real() && !args[i]->null_value) |
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return (int64_t) (i); |
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}
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}
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return 0; |
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}
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void Item_func_field::fix_length_and_dec() |
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{
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maybe_null=0; max_length=3; |
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cmp_type= args[0]->result_type(); |
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for (uint32_t i=1; i < arg_count ; i++) |
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cmp_type= item_cmp_type(cmp_type, args[i]->result_type()); |
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if (cmp_type == STRING_RESULT) |
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agg_arg_charsets(cmp_collation, args, arg_count, MY_COLL_CMP_CONV, 1); |
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}
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