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MDEV-12415 Remove sp_name::m_qname

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This commit is contained in:
Alexander Barkov
2017-03-31 14:26:43 +04:00
parent 0d8dc74d30
commit e191833d75
10 changed files with 93 additions and 94 deletions
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62
sql/sql_class.h
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@ -5757,6 +5757,68 @@ class Sql_mode_save
sql_mode_t old_mode; // SQL mode saved at construction time.
};
/**
This class resembles the SQL Standard schema qualified object name:
<schema qualified name> ::= [ <schema name> <period> ] <qualified identifier>
*/
class Database_qualified_name
{
public:
LEX_STRING m_db;
LEX_STRING m_name;
Database_qualified_name(const LEX_STRING db, const LEX_STRING name)
:m_db(db), m_name(name)
{ }
Database_qualified_name(char *db, size_t db_length,
char *name, size_t name_length)
{
m_db.str= db;
m_db.length= db_length;
m_name.str= name;
m_name.length= name_length;
}
// Export db and name as a qualified name string: 'db.name'
size_t make_qname(char *dst, size_t dstlen) const
{
return my_snprintf(dst, dstlen, "%.*s.%.*s",
(int) m_db.length, m_db.str,
(int) m_name.length, m_name.str);
}
// Export db and name as a qualified name string, allocate on mem_root.
bool make_qname(THD *thd, LEX_STRING *dst) const
{
const uint dot= !!m_db.length;
/* format: [database + dot] + name + '\0' */
dst->length= m_db.length + dot + m_name.length;
if (!(dst->str= (char*) thd->alloc(dst->length + 1)))
return true;
sprintf(dst->str, "%.*s%.*s%.*s",
(int) m_db.length, (m_db.length ? m_db.str : ""),
dot, ".",
(int) m_name.length, m_name.str);
DBUG_ASSERT(ok_for_lower_case_names(m_db.str));
return false;
}
};
class ErrConvDQName: public ErrConv
{
const Database_qualified_name *m_name;
public:
ErrConvDQName(const Database_qualified_name *name)
:m_name(name)
{ }
const char *ptr() const
{
m_name->make_qname(err_buffer, sizeof(err_buffer));
return err_buffer;
}
};
#endif /* MYSQL_SERVER */
#endif /* SQL_CLASS_INCLUDED */