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Merge romeo.(none):/home/bk/b22864-mysql-5.1-new-rpl

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into  romeo.(none):/home/bk/merge-b22864-myql-5.1-new-rpl
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mats@romeo.(none)
2006-12-21 19:36:28 +01:00
parent 4722743cae be9ffb12da
commit 8d4bddefd0
10 changed files with 563 additions and 93 deletions
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94
sql/sql_insert.cc
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@ -2646,8 +2646,7 @@ void select_insert::send_error(uint errcode,const char *err)
If the creation of the table failed (due to a syntax error, for
example), no table will have been opened and therefore 'table'
will be NULL. In that case, we still need to execute the rollback
and the end of the function to truncate the binary log, but we can
skip all the intermediate steps.
and the end of the function.
*/
if (table)
{
@ -2678,10 +2677,8 @@ void select_insert::send_error(uint errcode,const char *err)
if (!table->file->has_transactions())
{
if (mysql_bin_log.is_open())
{
thd->binlog_query(THD::ROW_QUERY_TYPE, thd->query, thd->query_length,
table->file->has_transactions(), FALSE);
}
if (!thd->current_stmt_binlog_row_based && !table->s->tmp_table &&
!can_rollback_data())
thd->options|= OPTION_STATUS_NO_TRANS_UPDATE;
@ -2948,6 +2945,24 @@ select_create::prepare(List<Item> &values, SELECT_LEX_UNIT *u)
DBUG_ENTER("select_create::prepare");
TABLEOP_HOOKS *hook_ptr= NULL;
/*
For row-based replication, the CREATE-SELECT statement is written
in two pieces: the first one contain the CREATE TABLE statement
necessary to create the table and the second part contain the rows
that should go into the table.
For non-temporary tables, the start of the CREATE-SELECT
implicitly commits the previous transaction, and all events
forming the statement will be stored the transaction cache. At end
of the statement, the entire statement is committed as a
transaction, and all events are written to the binary log.
On the master, the table is locked for the duration of the
statement, but since the CREATE part is replicated as a simple
statement, there is no way to lock the table for accesses on the
slave. Hence, we have to hold on to the CREATE part of the
statement until the statement has finished.
*/
class MY_HOOKS : public TABLEOP_HOOKS {
public:
MY_HOOKS(select_create *x) : ptr(x) { }
@ -2957,7 +2972,7 @@ select_create::prepare(List<Item> &values, SELECT_LEX_UNIT *u)
{
TABLE const *const table = *tables;
if (ptr->get_thd()->current_stmt_binlog_row_based &&
table->s->tmp_table == NO_TMP_TABLE &&
!table->s->tmp_table &&
!ptr->get_create_info()->table_existed)
{
ptr->binlog_show_create_table(tables, count);
@ -2973,9 +2988,9 @@ select_create::prepare(List<Item> &values, SELECT_LEX_UNIT *u)
unit= u;
/*
Start a statement transaction before the create if we are creating
a non-temporary table and are using row-based replication for the
statement.
Start a statement transaction before the create if we are using
row-based replication for the statement. If we are creating a
temporary table, we need to start a statement transaction.
*/
if ((thd->lex->create_info.options & HA_LEX_CREATE_TMP_TABLE) == 0 &&
thd->current_stmt_binlog_row_based)
@ -3075,13 +3090,35 @@ void select_create::store_values(List<Item> &values)
void select_create::send_error(uint errcode,const char *err)
{
DBUG_ENTER("select_create::send_error");
DBUG_PRINT("info",
("Current statement %s row-based",
thd->current_stmt_binlog_row_based ? "is" : "is NOT"));
DBUG_PRINT("info",
("Current table (at 0x%lu) %s a temporary (or non-existant) table",
table,
table && !table->s->tmp_table ? "is NOT" : "is"));
DBUG_PRINT("info",
("Table %s prior to executing this statement",
get_create_info()->table_existed ? "existed" : "did not exist"));
/*
Disable binlog, because we "roll back" partial inserts in ::abort
by removing the table, even for non-transactional tables.
This will execute any rollbacks that are necessary before writing
the transcation cache.
We disable the binary log since nothing should be written to the
binary log. This disabling is important, since we potentially do
a "roll back" of non-transactional tables by removing the table,
and the actual rollback might generate events that should not be
written to the binary log.
*/
tmp_disable_binlog(thd);
select_insert::send_error(errcode, err);
reenable_binlog(thd);
DBUG_VOID_RETURN;
}
@ -3092,6 +3129,14 @@ bool select_create::send_eof()
abort();
else
{
/*
Do an implicit commit at end of statement for non-temporary
tables. This can fail, but we should unlock the table
nevertheless.
*/
if (!table->s->tmp_table)
ha_commit(thd); // Can fail, but we proceed anyway
table->file->extra(HA_EXTRA_NO_IGNORE_DUP_KEY);
table->file->extra(HA_EXTRA_WRITE_CANNOT_REPLACE);
VOID(pthread_mutex_lock(&LOCK_open));
@ -3110,12 +3155,31 @@ bool select_create::send_eof()
void select_create::abort()
{
DBUG_ENTER("select_create::abort");
VOID(pthread_mutex_lock(&LOCK_open));
/*
We roll back the statement, including truncating the transaction
cache of the binary log, if the statement failed.
We roll back the statement prior to deleting the table and prior
to releasing the lock on the table, since there might be potential
for failure if the rollback is executed after the drop or after
unlocking the table.
We also roll back the statement regardless of whether the creation
of the table succeeded or not, since we need to reset the binary
log state.
*/
if (thd->current_stmt_binlog_row_based)
ha_rollback_stmt(thd);
if (thd->extra_lock)
{
mysql_unlock_tables(thd, thd->extra_lock);
thd->extra_lock=0;
}
if (table)
{
table->file->extra(HA_EXTRA_NO_IGNORE_DUP_KEY);
@ -3127,17 +3191,8 @@ void select_create::abort()
table->s->version= 0;
hash_delete(&open_cache,(byte*) table);
if (!create_info->table_existed)
{
quick_rm_table(table_type, create_table->db,
create_table->table_name, 0);
/*
We roll back the statement, including truncating the
transaction cache of the binary log, if the statement
failed.
*/
if (thd->current_stmt_binlog_row_based)
ha_rollback_stmt(thd);
}
/* Tell threads waiting for refresh that something has happened */
if (version != refresh_version)
broadcast_refresh();
@ -3147,6 +3202,7 @@ void select_create::abort()
table=0; // Safety
}
VOID(pthread_mutex_unlock(&LOCK_open));
DBUG_VOID_RETURN;
}