log0ddl.h File Reference

DDL log. More...

Go to the source code of this file.

Classes
class	DDL_Record
	DDL log record. More...
class	DDL_Log_Table
	Wrapper of mysql.innodb_ddl_log table. More...
class	Log_DDL
	Class to write and replay ddl logs. More...

Typedefs
using	DDL_Records = std::vector< DDL_Record * >
	Array of DDL records. More...

Enumerations
enum class	Log_Type : uint32_t {   SMALLEST_LOG = 1 , FREE_TREE_LOG = 1 , DELETE_SPACE_LOG , RENAME_SPACE_LOG ,   DROP_LOG , RENAME_TABLE_LOG , REMOVE_CACHE_LOG , ALTER_ENCRYPT_TABLESPACE_LOG ,   ALTER_UNENCRYPT_TABLESPACE_LOG , DELETE_SCHEMA_DIRECTORY_LOG , BIGGEST_LOG = DELETE_SCHEMA_DIRECTORY_LOG }
	DDL log types defined as uint32_t because it costs 4 bytes in mysql.innodb_ddl_log. More...

Functions
void	ddl_log_close ()
	Close the DDL log system. More...
void	ddl_log_crash_reset (THD *thd, SYS_VAR *var, void *var_ptr, const void *save)
	Reset all crash injection counters. More...

Variables
Log_DDL *	log_ddl
	Object to handle Log_DDL. More...
bool	innodb_ddl_log_crash_reset_debug
	Used by SET GLOBAL innodb_ddl_log_crash_counter_reset_debug = 1;. More...

Detailed Description

DDL log.

Created 12/1/2016 Shaohua Wang

Typedef Documentation

DDL_Records

using DDL_Records = std::vector<DDL_Record *>

Array of DDL records.

Enumeration Type Documentation

Log_Type

enum class Log_Type : uint32_t

strong

DDL log types defined as uint32_t because it costs 4 bytes in mysql.innodb_ddl_log.

Enumerator
SMALLEST_LOG	Smallest log type.
FREE_TREE_LOG	Drop an index tree.
DELETE_SPACE_LOG	Delete a file.
RENAME_SPACE_LOG	Rename a file.
DROP_LOG	Drop the entry in innodb_table_metadata.
RENAME_TABLE_LOG	Rename table in dict cache.
REMOVE_CACHE_LOG	Remove a table from dict cache.
ALTER_ENCRYPT_TABLESPACE_LOG	Alter Encrypt a tablespace.
ALTER_UNENCRYPT_TABLESPACE_LOG	Alter Unencrypt a tablespace.
DELETE_SCHEMA_DIRECTORY_LOG	For Atomic DROP/CREATE SCHEMA implementation.
BIGGEST_LOG	Biggest log type.

Function Documentation

ddl_log_close()

void ddl_log_close ( )

inline

Close the DDL log system.

ddl_log_crash_reset()

void ddl_log_crash_reset	(	THD *	thd,
		SYS_VAR *	var,
		void *	var_ptr,
		const void *	save
	)

Reset all crash injection counters.

It's used by: SET GLOBAL innodb_ddl_log_crash_reset_debug = 1 (0).

Parameters

[in]	thd	thread handle
[in]	var	pointer to system variable
[in]	var_ptr	where the formal string goes
[in]	save	immediate result from check function

Variable Documentation

innodb_ddl_log_crash_reset_debug

bool innodb_ddl_log_crash_reset_debug

extern

Used by SET GLOBAL innodb_ddl_log_crash_counter_reset_debug = 1;.

log_ddl

Log_DDL* log_ddl

extern

Object to handle Log_DDL.