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Merge bk-internal.mysql.com:/data0/bk/mysql-5.0

Browse Source 
into  bk-internal.mysql.com:/data0/bk/mysql-5.0-kt
This commit is contained in:
rburnett@bk-internal.mysql.com
2006-08-03 16:54:06 +02:00
parent 224faba0bb 35af3d5578
commit 22c77e87a2
116 changed files with 3259 additions and 6540 deletions
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138
sql/sql_show.cc
View File

@@ -250,9 +250,35 @@ bool mysqld_show_column_types(THD *thd)
}
int
mysql_find_files(THD *thd,List<char> *files, const char *db,const char *path,
const char *wild, bool dir)
/*
find_files() - find files in a given directory.
SYNOPSIS
find_files()
thd thread handler
files put found files in this list
db database name to set in TABLE_LIST structure
path path to database
wild filter for found files
dir read databases in path if TRUE, read .frm files in
database otherwise
RETURN
FIND_FILES_OK success
FIND_FILES_OOM out of memory error
FIND_FILES_DIR no such directory, or directory can't be read
*/
enum find_files_result {
FIND_FILES_OK,
FIND_FILES_OOM,
FIND_FILES_DIR
};
static
find_files_result
find_files(THD *thd, List<char> *files, const char *db,
const char *path, const char *wild, bool dir)
{
uint i;
char *ext;
@@ -262,7 +288,7 @@ mysql_find_files(THD *thd,List<char> *files, const char *db,const char *path,
uint col_access=thd->col_access;
#endif
TABLE_LIST table_list;
DBUG_ENTER("mysql_find_files");
DBUG_ENTER("find_files");
if (wild && !wild[0])
wild=0;
@@ -275,7 +301,7 @@ mysql_find_files(THD *thd,List<char> *files, const char *db,const char *path,
my_error(ER_BAD_DB_ERROR, MYF(ME_BELL+ME_WAITTANG), db);
else
my_error(ER_CANT_READ_DIR, MYF(ME_BELL+ME_WAITTANG), path, my_errno);
DBUG_RETURN(-1);
DBUG_RETURN(FIND_FILES_DIR);
}
for (i=0 ; i < (uint) dirp->number_off_files ; i++)
@@ -337,7 +363,7 @@ mysql_find_files(THD *thd,List<char> *files, const char *db,const char *path,
if (files->push_back(thd->strdup(file->name)))
{
my_dirend(dirp);
DBUG_RETURN(-1);
DBUG_RETURN(FIND_FILES_OOM);
}
}
DBUG_PRINT("info",("found: %d files", files->elements));
@@ -345,7 +371,7 @@ mysql_find_files(THD *thd,List<char> *files, const char *db,const char *path,
VOID(ha_find_files(thd,db,path,wild,dir,files));
DBUG_RETURN(0);
DBUG_RETURN(FIND_FILES_OK);
}
@@ -439,13 +465,11 @@ bool mysqld_show_create_db(THD *thd, char *dbname,
{
Security_context *sctx= thd->security_ctx;
int length;
char path[FN_REFLEN];
char buff[2048];
String buffer(buff, sizeof(buff), system_charset_info);
#ifndef NO_EMBEDDED_ACCESS_CHECKS
uint db_access;
#endif
bool found_libchar;
HA_CREATE_INFO create;
uint create_options = create_info ? create_info->options : 0;
Protocol *protocol=thd->protocol;
@@ -480,23 +504,13 @@ bool mysqld_show_create_db(THD *thd, char *dbname,
}
else
{
(void) sprintf(path,"%s/%s",mysql_data_home, dbname);
length=unpack_dirname(path,path); // Convert if not unix
found_libchar= 0;
if (length && path[length-1] == FN_LIBCHAR)
{
found_libchar= 1;
path[length-1]=0; // remove ending '\'
}
if (access(path,F_OK))
if (check_db_dir_existence(dbname))
{
my_error(ER_BAD_DB_ERROR, MYF(0), dbname);
DBUG_RETURN(TRUE);
}
if (found_libchar)
path[length-1]= FN_LIBCHAR;
strmov(path+length, MY_DB_OPT_FILE);
load_db_opt(thd, path, &create);
load_db_opt_by_name(thd, dbname, &create);
}
List<Item> field_list;
field_list.push_back(new Item_empty_string("Database",NAME_LEN));
@@ -2000,8 +2014,8 @@ enum enum_schema_tables get_schema_table_idx(ST_SCHEMA_TABLE *schema_table)
wild string otherwise it's db name;
RETURN
1 error
0 success
zero success
non-zero error
*/
int make_db_list(THD *thd, List<char> *files,
@@ -2027,8 +2041,8 @@ int make_db_list(THD *thd, List<char> *files,
if (files->push_back(thd->strdup(information_schema_name.str)))
return 1;
}
return mysql_find_files(thd, files, NullS, mysql_data_home,
idx_field_vals->db_value, 1);
return (find_files(thd, files, NullS, mysql_data_home,
idx_field_vals->db_value, 1) != FIND_FILES_OK);
}
/*
@@ -2055,7 +2069,8 @@ int make_db_list(THD *thd, List<char> *files,
if (files->push_back(thd->strdup(information_schema_name.str)))
return 1;
*with_i_schema= 1;
return mysql_find_files(thd, files, NullS, mysql_data_home, NullS, 1);
return (find_files(thd, files, NullS,
mysql_data_home, NullS, 1) != FIND_FILES_OK);
}
@@ -2116,12 +2131,6 @@ int get_all_tables(THD *thd, TABLE_LIST *tables, COND *cond)
LINT_INIT(end);
LINT_INIT(len);
/*
Let us set fake sql_command so views won't try to merge
themselves into main statement.
*/
lex->sql_command= SQLCOM_SHOW_FIELDS;
lex->reset_n_backup_query_tables_list(&query_tables_list_backup);
/*
@@ -2144,8 +2153,16 @@ int get_all_tables(THD *thd, TABLE_LIST *tables, COND *cond)
I_S tables will be done.
*/
thd->temporary_tables= open_tables_state_backup.temporary_tables;
/*
Let us set fake sql_command so views won't try to merge
themselves into main statement. If we don't do this,
SELECT * from information_schema.xxxx will cause problems.
SQLCOM_SHOW_FIELDS is used because it satisfies 'only_view_structure()'
*/
lex->sql_command= SQLCOM_SHOW_FIELDS;
res= open_normal_and_derived_tables(thd, show_table_list,
MYSQL_LOCK_IGNORE_FLUSH);
lex->sql_command= save_sql_command;
/*
get_all_tables() returns 1 on failure and 0 on success thus
return only these and not the result code of ::process_table()
@@ -2204,9 +2221,28 @@ int get_all_tables(THD *thd, TABLE_LIST *tables, COND *cond)
strxmov(path, mysql_data_home, "/", base_name, NullS);
end= path + (len= unpack_dirname(path,path));
len= FN_LEN - len;
if (mysql_find_files(thd, &files, base_name,
path, idx_field_vals.table_value, 0))
goto err;
find_files_result res= find_files(thd, &files, base_name,
path, idx_field_vals.table_value, 0);
if (res != FIND_FILES_OK)
{
/*
Downgrade errors about problems with database directory to
warnings if this is not a 'SHOW' command. Another thread
may have dropped database, and we may still have a name
for that directory.
*/
if (res == FIND_FILES_DIR && lex->orig_sql_command == SQLCOM_END)
{
push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
thd->net.last_errno, thd->net.last_error);
thd->clear_error();
continue;
}
else
{
goto err;
}
}
if (lower_case_table_names)
orig_base_name= thd->strdup(base_name);
}
@@ -2267,8 +2303,10 @@ int get_all_tables(THD *thd, TABLE_LIST *tables, COND *cond)
TABLE_LIST *show_table_list= (TABLE_LIST*) sel.table_list.first;
lex->all_selects_list= &sel;
lex->derived_tables= 0;
lex->sql_command= SQLCOM_SHOW_FIELDS;
res= open_normal_and_derived_tables(thd, show_table_list,
MYSQL_LOCK_IGNORE_FLUSH);
lex->sql_command= save_sql_command;
/*
We should use show_table_list->alias instead of
show_table_list->table_name because table_name
@@ -2319,8 +2357,11 @@ bool store_schema_shemata(THD* thd, TABLE *table, const char *db_name,
int fill_schema_shemata(THD *thd, TABLE_LIST *tables, COND *cond)
{
char path[FN_REFLEN];
bool found_libchar;
/*
TODO: fill_schema_shemata() is called when new client is connected.
Returning error status in this case leads to client hangup.
*/
INDEX_FIELD_VALUES idx_field_vals;
List<char> files;
char *file_name;
@@ -2352,20 +2393,9 @@ int fill_schema_shemata(THD *thd, TABLE_LIST *tables, COND *cond)
(grant_option && !check_grant_db(thd, file_name)))
#endif
{
strxmov(path, mysql_data_home, "/", file_name, NullS);
length=unpack_dirname(path,path); // Convert if not unix
found_libchar= 0;
if (length && path[length-1] == FN_LIBCHAR)
{
found_libchar= 1;
path[length-1]=0; // remove ending '\'
}
load_db_opt_by_name(thd, file_name, &create);
if (found_libchar)
path[length-1]= FN_LIBCHAR;
strmov(path+length, MY_DB_OPT_FILE);
load_db_opt(thd, path, &create);
if (store_schema_shemata(thd, table, file_name,
if (store_schema_shemata(thd, table, file_name,
create.default_table_charset))
DBUG_RETURN(1);
}
@@ -3950,13 +3980,19 @@ bool get_schema_tables_result(JOIN *join)
table_list->table->file->delete_all_rows();
free_io_cache(table_list->table);
filesort_free_buffers(table_list->table);
table_list->table->null_row= 0;
}
else
table_list->table->file->records= 0;
if (table_list->schema_table->fill_table(thd, table_list,
tab->select_cond))
{
result= 1;
join->error= 1;
table_list->is_schema_table_processed= TRUE;
break;
}
table_list->is_schema_table_processed= TRUE;
}
}