diff options
Diffstat (limited to 'sql/ha_innodb.h')
| -rw-r--r-- | sql/ha_innodb.h | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/sql/ha_innodb.h b/sql/ha_innodb.h index 2cbc1c8d91b..3bc1fc5b2c8 100644 --- a/sql/ha_innodb.h +++ b/sql/ha_innodb.h @@ -302,7 +302,7 @@ which is in the prepared state */ int innobase_rollback_by_xid( /* out: 0 or error number */ - XID *xid); /* in : X/Open XA Transaction Idenfification */ + XID *xid); /* in : X/Open XA Transaction Identification */ int innobase_xa_end(THD *thd); @@ -312,9 +312,10 @@ int innobase_repl_report_sent_binlog(THD *thd, char *log_file_name, my_off_t end_offset); /*********************************************************************** -This function creates a consistent view for a cursor and start a transaction -if it has not been started. This consistent view is then used inside of MySQL -when accesing records using a cursor. */ +Create a consistent view for a cursor based on current transaction +which is created if the corresponding MySQL thread still lacks one. +This consistent view is then used inside of MySQL when accessing records +using a cursor. */ void* innobase_create_cursor_view(void); @@ -322,9 +323,9 @@ innobase_create_cursor_view(void); /* out: Pointer to cursor view or NULL */ /*********************************************************************** -This function closes the given consistent cursor view. Note that -global read view is restored to a transaction and a transaction is -started if it has not been started. */ +Close the given consistent cursor view of a transaction and restore +global read view to a transaction read view. Transaction is created if the +corresponding MySQL thread still lacks one. */ void innobase_close_cursor_view( @@ -332,8 +333,10 @@ innobase_close_cursor_view( void* curview); /* in: Consistent read view to be closed */ /*********************************************************************** -This function sets the given consistent cursor view to a transaction. -If a transaction does not exist, transaction is started. */ +Set the given consistent cursor view to a transaction which is created +if the corresponding MySQL thread still lacks one. If the given +consistent cursor view is NULL global read view of a transaction is +restored to a transaction read view. */ void innobase_set_cursor_view( |