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Bug#17371: Unable to dump a schema with invalid views

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'show create' works even on views that are short of a base-table (this
throw a warning though, like you would expect). Unfortunately, this is
not what mysqldump uses; it creates stand-in tables and hence requests
'show fields' on the view which fails with missing base-tables.  The
--force option prevents the dump from stopping at this point; furthermore
this patch dumps a comment showing create for the offending view for
better diagnostics. This solution was confirmed by submitter as solving
their/clients' problem. Problem might become non-issue once mysqldump no
longer creates stand-in tables.
This commit is contained in:
tnurnberg@mysql.com
2006-05-30 14:49:05 +02:00
parent 15f763af84
commit c7ae355d89
3 changed files with 42 additions and 1 deletions
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21
client/mysqldump.c
View File

@ -1494,9 +1494,15 @@ static uint get_table_structure(char *table, char *db, char *table_type,
field= mysql_fetch_field_direct(result, 0);
if (strcmp(field->name, "View") == 0)
{
char *scv_buff = NULL;
if (verbose)
fprintf(stderr, "-- It's a view, create dummy table for view\n");
/* save "show create" statement for later */
if ((row= mysql_fetch_row(result)) && (scv_buff=row[1]))
scv_buff= my_strdup(scv_buff, MYF(0));
mysql_free_result(result);
/*
@ -1514,9 +1520,22 @@ static uint get_table_structure(char *table, char *db, char *table_type,
"SHOW FIELDS FROM %s", result_table);
if (mysql_query_with_error_report(sock, 0, query_buff))
{
/*
View references invalid or privileged table/col/fun (err 1356),
so we cannot create a stand-in table. Be defensive and dump
a comment with the view's 'show create' statement. (Bug #17371)
*/
if (mysql_errno(sock) == ER_VIEW_INVALID)
fprintf(sql_file, "\n-- failed on view %s: %s\n\n", result_table, scv_buff ? scv_buff : "");
my_free(scv_buff, MYF(MY_ALLOW_ZERO_PTR));
safe_exit(EX_MYSQLERR);
DBUG_RETURN(0);
DBUG_RETURN(0);
}
else
my_free(scv_buff, MYF(MY_ALLOW_ZERO_PTR));
if ((result= mysql_store_result(sock)))
{