Default_object_creation_ctx Class Reference

#include <table.h>

Inheritance diagram for Default_object_creation_ctx:

Collaboration diagram for Default_object_creation_ctx:

Public Member Functions
const CHARSET_INFO *	get_client_cs ()
const CHARSET_INFO *	get_connection_cl ()
Public Member Functions inherited from Object_creation_ctx
Object_creation_ctx *	set_n_backup (THD *thd)
void	restore_env (THD *thd, Object_creation_ctx *backup_ctx)

Protected Member Functions
	Default_object_creation_ctx (THD *thd)
	Default_object_creation_ctx (const CHARSET_INFO *client_cs, const CHARSET_INFO *connection_cl)
virtual Object_creation_ctx *	create_backup_ctx (THD *thd) const
virtual void	change_env (THD *thd) const

Protected Attributes
const CHARSET_INFO *	m_client_cs
const CHARSET_INFO *	m_connection_cl

Detailed Description

Default_object_creation_ctx – default implementation of Object_creation_ctx.

Definition at line 134 of file table.h.

Member Data Documentation

const CHARSET_INFO* Default_object_creation_ctx::m_client_cs

protected

client_cs stores the value of character_set_client session variable. The only character set attribute is used.

Client character set is included into query context, because we save query in the original character set, which is client character set. So, in order to parse the query properly we have to switch client character set on parsing.

Definition at line 168 of file table.h.

const CHARSET_INFO* Default_object_creation_ctx::m_connection_cl

protected

connection_cl stores the value of collation_connection session variable. Both character set and collation attributes are used.

Connection collation is included into query context, becase it defines the character set and collation of text literals in internal representation of query (item-objects).

Definition at line 178 of file table.h.

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The documentation for this class was generated from the following files:

• sql/table.h
• sql/table.cc