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manual merge 5.0-bugteam --> 5.1-bugteam (bug 40021)

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sql_view.cc: required_view_parameters has been decreased by 2 
(not by 1) because its value was incorrect: 16 instead of 15
(minor performance issue).
This commit is contained in:
Gleb Shchepa
2008-11-14 21:37:27 +04:00
parent de1fe9054f b82094a0f8
commit fa430818c3
6 changed files with 16 additions and 132 deletions
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31
sql/sql_view.cc
View File

@@ -655,7 +655,7 @@ bool mysql_create_view(THD *thd, TABLE_LIST *views,
}
VOID(pthread_mutex_unlock(&LOCK_open));
if (view->revision != 1)
if (mode != VIEW_CREATE_NEW)
query_cache_invalidate3(thd, view, 0);
start_waiting_global_read_lock(thd);
if (res)
@@ -673,12 +673,8 @@ err:
}
/* index of revision number in following table */
static const int revision_number_position= 8;
/* number of required parameters for making view */
static const int required_view_parameters= 16;
/* number of backups */
static const int num_view_backups= 3;
static const int required_view_parameters= 14;
/*
table of VIEW .frm field descriptors
@@ -711,9 +707,6 @@ static File_option view_parameters[]=
{{ C_STRING_WITH_LEN("with_check_option")},
my_offsetof(TABLE_LIST, with_check),
FILE_OPTIONS_ULONGLONG},
{{ C_STRING_WITH_LEN("revision")},
my_offsetof(TABLE_LIST, revision),
FILE_OPTIONS_REV},
{{ C_STRING_WITH_LEN("timestamp")},
my_offsetof(TABLE_LIST, timestamp),
FILE_OPTIONS_TIMESTAMP},
@@ -921,18 +914,9 @@ loop_out:
}
/*
read revision number
TODO: read dependence list, too, to process cascade/restrict
TODO: special cascade/restrict procedure for alter?
*/
if (parser->parse((uchar*)view, thd->mem_root,
view_parameters + revision_number_position, 1,
&file_parser_dummy_hook))
{
error= thd->is_error() ? -1 : 0;
goto err;
}
}
else
{
@@ -997,7 +981,7 @@ loop_out:
}
if (sql_create_definition_file(&dir, &file, view_file_type,
(uchar*)view, view_parameters, num_view_backups))
(uchar*)view, view_parameters))
{
error= thd->is_error() ? -1 : 1;
goto err;
@@ -1963,8 +1947,7 @@ mysql_rename_view(THD *thd,
goto err;
/* rename view and it's backups */
if (rename_in_schema_file(thd, view->db, view->table_name, new_name,
view_def.revision - 1, num_view_backups))
if (rename_in_schema_file(thd, view->db, view->table_name, new_name))
goto err;
dir.str= dir_buff;
@@ -1979,12 +1962,10 @@ mysql_rename_view(THD *thd,
file.length= pathstr.length - dir.length;
if (sql_create_definition_file(&dir, &file, view_file_type,
(uchar*)&view_def, view_parameters,
num_view_backups))
(uchar*)&view_def, view_parameters))
{
/* restore renamed view in case of error */
rename_in_schema_file(thd, view->db, new_name, view->table_name,
view_def.revision - 1, num_view_backups);
rename_in_schema_file(thd, view->db, new_name, view->table_name);
goto err;
}
} else