From a175314c3e5827eb193872241446f2f8f5c9d33c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 4 May 2024 20:07:14 +0200 Subject: Adding upstream version 1:10.5.12. Signed-off-by: Daniel Baumann --- sql/sql_schema.h | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 sql/sql_schema.h (limited to 'sql/sql_schema.h') diff --git a/sql/sql_schema.h b/sql/sql_schema.h new file mode 100644 index 00000000..886a115c --- /dev/null +++ b/sql/sql_schema.h @@ -0,0 +1,60 @@ +#ifndef SQL_SCHEMA_H_INCLUDED +#define SQL_SCHEMA_H_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 "mysqld.h" +#include "lex_string.h" + +class Schema +{ + LEX_CSTRING m_name; +public: + Schema(const LEX_CSTRING &name) + :m_name(name) + { } + virtual ~Schema() { } + const LEX_CSTRING &name() const { return m_name; } + virtual const Type_handler *map_data_type(THD *thd, const Type_handler *src) + const + { + return src; + } + /* + For now we have *hard-coded* compatibility schemas: + schema_mariadb, schema_oracle, schema_maxdb. + But eventually we'll turn then into real databases on disk. + So the code below compares names according to the filesystem + case sensitivity, like it is done for regular databases. + + Note, this is different to information_schema, whose name + is always case insensitive. This is intentional! + The assymetry will be gone when we'll implement SQL standard + regular and delimited identifiers. + */ + bool eq_name(const LEX_CSTRING &name) const + { + return !table_alias_charset->strnncoll(m_name.str, m_name.length, + name.str, name.length); + } + static Schema *find_by_name(const LEX_CSTRING &name); + static Schema *find_implied(THD *thd); +}; + + +extern Schema mariadb_schema; + +#endif // SQL_SCHEMA_H_INCLUDED -- cgit v1.2.3