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WL#3259 (RBR with more columns on slave than on master):

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Extended replication to allow extra columns added last on slave
as compared with table on master.
This commit is contained in:
mats@mysql.com
2006-05-03 15:00:38 +02:00
parent ed809462e9
commit 77c4a2ca60
11 changed files with 591 additions and 235 deletions
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156
sql/rpl_utility.cc Normal file
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/* Copyright 2006 MySQL AB. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include "rpl_utility.h"
uint32
field_length_from_packed(enum_field_types const field_type,
byte const *const data)
{
uint32 length;
switch (field_type) {
case MYSQL_TYPE_DECIMAL:
case MYSQL_TYPE_NEWDECIMAL:
length= ~0UL;
break;
case MYSQL_TYPE_YEAR:
case MYSQL_TYPE_TINY:
length= 1;
break;
case MYSQL_TYPE_SHORT:
length= 2;
break;
case MYSQL_TYPE_INT24:
length= 3;
break;
case MYSQL_TYPE_LONG:
length= 4;
break;
#ifdef HAVE_LONG_LONG
case MYSQL_TYPE_LONGLONG:
length= 8;
break;
#endif
case MYSQL_TYPE_FLOAT:
length= sizeof(float);
break;
case MYSQL_TYPE_DOUBLE:
length= sizeof(double);
break;
case MYSQL_TYPE_NULL:
length= 0;
break;
case MYSQL_TYPE_NEWDATE:
length= 3;
break;
case MYSQL_TYPE_DATE:
length= 4;
break;
case MYSQL_TYPE_TIME:
length= 3;
break;
case MYSQL_TYPE_TIMESTAMP:
length= 4;
break;
case MYSQL_TYPE_DATETIME:
length= 8;
break;
break;
case MYSQL_TYPE_BIT:
length= ~0UL;
break;
default:
/* This case should never be chosen */
DBUG_ASSERT(0);
/* If something goes awfully wrong, it's better to get a string than die */
case MYSQL_TYPE_STRING:
length= uint2korr(data);
break;
case MYSQL_TYPE_ENUM:
case MYSQL_TYPE_SET:
case MYSQL_TYPE_VAR_STRING:
case MYSQL_TYPE_VARCHAR:
length= ~0UL; // NYI
break;
case MYSQL_TYPE_TINY_BLOB:
case MYSQL_TYPE_MEDIUM_BLOB:
case MYSQL_TYPE_LONG_BLOB:
case MYSQL_TYPE_BLOB:
case MYSQL_TYPE_GEOMETRY:
length= ~0UL; // NYI
break;
}
}
/*********************************************************************
* table_def member definitions *
*********************************************************************/
/*
Is the definition compatible with a table?
Compare the definition with a table to see if it is compatible with
it. A table definition is compatible with a table if
- the columns types of the table definition is a (not necessarily
proper) prefix of the column type of the table, or
- the other way around
*/
int
table_def::compatible_with(RELAY_LOG_INFO *rli, TABLE *table)
const
{
/*
We only check the initial columns for the tables.
*/
uint const cols_to_check= min(table->s->fields, size());
int error= 0;
TABLE_SHARE const *const tsh= table->s;
/*
To get proper error reporting for all columns of the table, we
both check the width and iterate over all columns.
*/
if (tsh->fields < size())
{
DBUG_ASSERT(tsh->db.str && tsh->table_name.str);
error= 1;
slave_print_msg(ERROR_LEVEL, rli, ER_BINLOG_ROW_WRONG_TABLE_DEF,
"Table width mismatch - "
"received %u columns, %s.%s has %u columns",
size(), tsh->db.str, tsh->table_name.str, tsh->fields);
}
for (uint col= 0 ; col < cols_to_check ; ++col)
{
if (table->field[col]->type() != type(col))
{
DBUG_ASSERT(col < size() && col < tsh->fields);
DBUG_ASSERT(tsh->db.str && tsh->table_name.str);
error= 1;
slave_print_msg(ERROR_LEVEL, rli, ER_BINLOG_ROW_WRONG_TABLE_DEF,
"Column %d type mismatch - "
"received type %d, %s.%s has type %d",
col, type(col), tsh->db.str, tsh->table_name.str,
table->field[col]->type());
}
}
return error;
}