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#ifndef SQL_CLIENT_METADATA_INCLUDED
#define SQL_CLIENT_METADATA_INCLUDED
/*
Copyright (c) 2020, MariaDB Corporation.
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; version 2 of the License.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
#include "sql_string.h"
/*
Print MYSQL_FIELD metadata in human readable format
*/
class Client_field_metadata
{
const MYSQL_FIELD *m_field;
public:
Client_field_metadata(MYSQL_FIELD *field)
:m_field(field)
{ }
void print_attr(Binary_string *to,
const LEX_CSTRING &name,
mariadb_field_attr_t attr,
uint orig_to_length) const
{
MARIADB_CONST_STRING tmp;
if (!mariadb_field_attr(&tmp, m_field, attr) && tmp.length)
{
if (to->length() != orig_to_length)
to->append(" ", 1);
to->append(name);
to->append(tmp.str, tmp.length);
}
}
void print_data_type_related_attributes(Binary_string *to) const
{
static const LEX_CSTRING type= {C_STRING_WITH_LEN("type=")};
static const LEX_CSTRING format= {C_STRING_WITH_LEN("format=")};
uint to_length_orig= to->length();
print_attr(to, type, MARIADB_FIELD_ATTR_DATA_TYPE_NAME, to_length_orig);
print_attr(to, format, MARIADB_FIELD_ATTR_FORMAT_NAME, to_length_orig);
}
};
#endif // SQL_CLIENT_METADATA_INCLUDED
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