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Merge branch '10.2' into 10.3

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This commit is contained in:
Oleksandr Byelkin
2019-05-12 17:20:23 +02:00
parent a89f199c64 8ce702aa90
commit c51f85f882
255 changed files with 3975 additions and 1186 deletions
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36
sql/sql_update.cc
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@ -1536,6 +1536,9 @@ int mysql_multi_update_prepare(THD *thd)
List<Item> *fields= &lex->select_lex.item_list;
table_map tables_for_update;
bool update_view= 0;
DML_prelocking_strategy prelocking_strategy;
bool has_prelocking_list= thd->lex->requires_prelocking();
/*
if this multi-update was converted from usual update, here is table
counter else junk will be assigned here, but then replaced with real
@ -1556,10 +1559,10 @@ int mysql_multi_update_prepare(THD *thd)
keep prepare of multi-UPDATE compatible with concurrent LOCK TABLES WRITE
and global read lock.
*/
if ((original_multiupdate &&
open_tables(thd, &table_list, &table_count,
(thd->stmt_arena->is_stmt_prepare() ?
MYSQL_OPEN_FORCE_SHARED_MDL : 0))) ||
if ((original_multiupdate && open_tables(thd, &table_list, &table_count,
thd->stmt_arena->is_stmt_prepare()
? MYSQL_OPEN_FORCE_SHARED_MDL : 0,
&prelocking_strategy)) ||
mysql_handle_derived(lex, DT_INIT))
DBUG_RETURN(TRUE);
/*
@ -1608,6 +1611,9 @@ int mysql_multi_update_prepare(THD *thd)
if (unsafe_key_update(lex->select_lex.leaf_tables, tables_for_update))
DBUG_RETURN(true);
TABLE_LIST **new_tables= lex->query_tables_last;
DBUG_ASSERT(*new_tables== NULL);
/*
Setup timestamp handling and locking mode
*/
@ -1635,6 +1641,11 @@ int mysql_multi_update_prepare(THD *thd)
If table will be updated we should not downgrade lock for it and
leave it as is.
*/
tl->updating= 1;
if (tl->belong_to_view)
tl->belong_to_view->updating= 1;
if (extend_table_list(thd, tl, &prelocking_strategy, has_prelocking_list))
DBUG_RETURN(TRUE);
}
else
{
@ -1657,7 +1668,6 @@ int mysql_multi_update_prepare(THD *thd)
tl->lock_type= lock_type;
else
tl->set_lock_type(thd, lock_type);
tl->updating= 0;
}
}
@ -1666,6 +1676,20 @@ int mysql_multi_update_prepare(THD *thd)
Note that unlike in the above loop we need to iterate here not only
through all leaf tables but also through all view hierarchy.
*/
uint addon_table_count= 0;
if (*new_tables)
{
Sroutine_hash_entry **new_routines= thd->lex->sroutines_list.next;
DBUG_ASSERT(*new_routines == NULL);
if (open_tables(thd, thd->lex->create_info, new_tables,
&addon_table_count, new_routines,
thd->stmt_arena->is_stmt_prepare()
? MYSQL_OPEN_FORCE_SHARED_MDL : 0,
&prelocking_strategy))
DBUG_RETURN(TRUE);
}
for (tl= table_list; tl; tl= tl->next_local)
{
bool not_used= false;
@ -1694,7 +1718,7 @@ int mysql_multi_update_prepare(THD *thd)
/* now lock and fill tables */
if (!thd->stmt_arena->is_stmt_prepare() &&
lock_tables(thd, table_list, table_count, 0))
lock_tables(thd, table_list, table_count + addon_table_count, 0))
{
DBUG_RETURN(TRUE);
}