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FLUSH TABLE table_list

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Fixes for RENAME TABLE
Portability fixes
This commit is contained in:
monty@donna.mysql.com
2000-08-22 00:18:32 +03:00
parent 48ee575ebc
commit f0952ce3e1
58 changed files with 502 additions and 400 deletions
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57
sql/sql_rename.cc
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@ -21,8 +21,8 @@
#include "mysql_priv.h"
static TABLE_LIST *mysql_rename_tables(THD *thd, TABLE_LIST *table_list,
bool skip_error);
static TABLE_LIST *rename_tables(THD *thd, TABLE_LIST *table_list,
bool skip_error);
/*
Every second entry in the table_list is the original name and every
@ -58,7 +58,7 @@ bool mysql_rename_tables(THD *thd, TABLE_LIST *table_list)
if (!got_all_locks && wait_for_locked_table_names(thd,table_list))
goto end;
if (!(ren_table=mysql_rename_tables(thd,table_list,0)))
if (!(ren_table=rename_tables(thd,table_list,0)))
error=0;
end:
@ -66,25 +66,24 @@ end:
{
/* Rename didn't succeed; rename back the tables in reverse order */
TABLE_LIST *prev=0,*table;
/*
Reverse the table list ; Note that we need to handle the case that
every second entry must stay in place in respect to the previous
*/
/* Reverse the table list */
while (table_list)
{
TABLE_LIST *next=table_list->next->next;
table_list->next->next=prev;
TABLE_LIST *next=table_list->next;
table_list->next=prev;
prev=table_list;
table_list=next;
}
table_list=prev;
/* Find the last renamed table */
for (table=table_list ; table->next != ren_table ;
for (table=table_list ;
table->next != ren_table ;
table=table->next->next) ;
table=table->next->next; // Skipp error table
/* Revert to old names */
mysql_rename_tables(thd, table, 1);
rename_tables(thd, table, 1);
/* Note that lock_table == 0 here, so the unlock loop will work */
}
if (!error)
@ -92,6 +91,7 @@ end:
mysql_update_log.write(thd->query,thd->query_length);
Query_log_event qinfo(thd, thd->query);
mysql_bin_log.write(&qinfo);
send_ok(&thd->net);
}
for (TABLE_LIST *table=table_list ; table != lock_table ; table=table->next)
unlock_table_name(thd,table);
@ -103,30 +103,45 @@ end:
/*
Rename all tables in list; Return pointer to wrong entry if something goes
wrong.
wrong. Note that the table_list may be empty!
*/
static TABLE_LIST *
mysql_rename_tables(THD *thd, TABLE_LIST *table_list, bool skip_error)
rename_tables(THD *thd, TABLE_LIST *table_list, bool skip_error)
{
TABLE_LIST *ren_table;
for (ren_table=table_list ; ren_table ; ren_table=ren_table->next)
TABLE_LIST *ren_table,*new_table;
DBUG_ENTER("rename_tables");
for (ren_table=table_list ; ren_table ; ren_table=new_table->next)
{
db_type table_type;
char name[FN_REFLEN];
TABLE_LIST *new_table=ren_table->next;
new_table=ren_table->next;
sprintf(name,"%s/%s/%s%s",mysql_data_home,
new_table->db,new_table->name,
reg_ext);
if (!access(name,F_OK))
{
my_error(ER_TABLE_EXISTS_ERROR,MYF(0),name);
return ren_table; // This can't be skipped
}
sprintf(name,"%s/%s/%s%s",mysql_data_home,
ren_table->db,ren_table->name,
reg_ext);
if ((table_type=get_table_type(name)) == DB_TYPE_UNKNOWN ||
mysql_rename_table(table_type,
ren_table->db, ren_table->name,
new_table->db, new_table->name))
if ((table_type=get_table_type(name)) == DB_TYPE_UNKNOWN)
{
my_error(ER_FILE_NOT_FOUND, MYF(0), name, my_errno);
if (!skip_error)
return ren_table;
}
else if (mysql_rename_table(table_type,
ren_table->db, ren_table->name,
new_table->db, new_table->name))
{
if (!skip_error)
return ren_table;
}
}
return 0;
DBUG_RETURN(0);
}