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Bug#32430: 'show innodb status' causes errors

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Invalid (old?) table or database name in logs

Post push patch.

Bug was that a non partitioned table file was not
converted to system_charset, (due to table_name_len was not set).

Also missing DBUG_RETURN.

And Innodb adds quotes after calling the function,
so I added one more mode where explain_filename does not
add quotes. But it still appends the [sub]partition name
as a comment.

Also caught a minor quoting bug, the character '`' was
not quoted in the identifier. (so 'a`b' was quoted as `a`b`
and not `a``b`, this is mulitbyte characters aware.)
This commit is contained in:
Mattias Jonsson
2009-08-07 15:08:32 +02:00
parent bcbbef6fb9
commit 4a3876c3df
3 changed files with 71 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

76
sql/sql_table.cc
View File

@ -72,7 +72,7 @@ static void wait_for_kill_signal(THD *thd)
@brief Helper function for explain_filename
*/
static char* add_identifier(char *to_p, const char * end_p,
const char* name, uint name_len, int errcode)
const char* name, uint name_len, bool add_quotes)
{
uint res;
uint errors;
@ -92,18 +92,44 @@ static char* add_identifier(char *to_p, const char * end_p,
res= strconvert(&my_charset_filename, conv_name, system_charset_info,
conv_string, FN_REFLEN, &errors);
if (!res || errors)
{
DBUG_PRINT("error", ("strconvert of '%s' failed with %u (errors: %u)", conv_name, res, errors));
conv_name= name;
}
else
{
DBUG_PRINT("info", ("conv '%s' -> '%s'", conv_name, conv_string));
conv_name= conv_string;
}
if (errcode)
to_p+= my_snprintf(to_p, end_p - to_p, ER(errcode), conv_name);
if (add_quotes && (end_p - to_p > 2))
{
*(to_p++)= '`';
while (*conv_name && (end_p - to_p - 1) > 0)
{
uint length= my_mbcharlen(system_charset_info, *conv_name);
if (!length)
length= 1;
if (length == 1 && *conv_name == '`')
{
if ((end_p - to_p) < 3)
break;
*(to_p++)= '`';
*(to_p++)= *(conv_name++);
}
else if (length < (end_p - to_p))
{
to_p= strnmov(to_p, conv_name, length);
conv_name+= length;
}
else
break; /* string already filled */
}
to_p= strnmov(to_p, "`", end_p - to_p);
}
else
to_p+= my_snprintf(to_p, end_p - to_p, "`%s`", conv_name);
return to_p;
to_p= strnmov(to_p, conv_name, end_p - to_p);
DBUG_RETURN(to_p);
}
@ -135,6 +161,8 @@ static char* add_identifier(char *to_p, const char * end_p,
[,[ Temporary| Renamed] Partition `p`
[, Subpartition `sp`]] *|
(| is really a /, and it is all in one line)
EXPLAIN_PARTITIONS_AS_COMMENT_NO_QUOTING ->
same as above but no quotes are added.
@retval Length of returned string
*/
@ -245,28 +273,39 @@ uint explain_filename(const char *from,
part_name_len-= 5;
}
}
else
table_name_len= strlen(table_name);
if (db_name)
{
if (explain_mode == EXPLAIN_ALL_VERBOSE)
{
to_p= add_identifier(to_p, end_p, db_name, db_name_len,
ER_DATABASE_NAME);
to_p= strnmov(to_p, ER(ER_DATABASE_NAME), end_p - to_p);
*(to_p++)= ' ';
to_p= add_identifier(to_p, end_p, db_name, db_name_len, 1);
to_p= strnmov(to_p, ", ", end_p - to_p);
}
else
{
to_p= add_identifier(to_p, end_p, db_name, db_name_len, 0);
to_p= add_identifier(to_p, end_p, db_name, db_name_len,
(explain_mode !=
EXPLAIN_PARTITIONS_AS_COMMENT_NO_QUOTING));
to_p= strnmov(to_p, ".", end_p - to_p);
}
}
if (explain_mode == EXPLAIN_ALL_VERBOSE)
to_p= add_identifier(to_p, end_p, table_name, table_name_len,
ER_TABLE_NAME);
{
to_p= strnmov(to_p, ER(ER_TABLE_NAME), end_p - to_p);
*(to_p++)= ' ';
to_p= add_identifier(to_p, end_p, table_name, table_name_len, 1);
}
else
to_p= add_identifier(to_p, end_p, table_name, table_name_len, 0);
to_p= add_identifier(to_p, end_p, table_name, table_name_len,
(explain_mode !=
EXPLAIN_PARTITIONS_AS_COMMENT_NO_QUOTING));
if (part_name)
{
if (explain_mode == EXPLAIN_PARTITIONS_AS_COMMENT)
if (explain_mode == EXPLAIN_PARTITIONS_AS_COMMENT ||
explain_mode == EXPLAIN_PARTITIONS_AS_COMMENT_NO_QUOTING)
to_p= strnmov(to_p, " /* ", end_p - to_p);
else if (explain_mode == EXPLAIN_PARTITIONS_VERBOSE)
to_p= strnmov(to_p, " ", end_p - to_p);
@ -280,15 +319,22 @@ uint explain_filename(const char *from,
to_p= strnmov(to_p, ER(ER_RENAMED_NAME), end_p - to_p);
to_p= strnmov(to_p, " ", end_p - to_p);
}
to_p= strnmov(to_p, ER(ER_PARTITION_NAME), end_p - to_p);
*(to_p++)= ' ';
to_p= add_identifier(to_p, end_p, part_name, part_name_len,
ER_PARTITION_NAME);
(explain_mode !=
EXPLAIN_PARTITIONS_AS_COMMENT_NO_QUOTING));
if (subpart_name)
{
to_p= strnmov(to_p, ", ", end_p - to_p);
to_p= strnmov(to_p, ER(ER_SUBPARTITION_NAME), end_p - to_p);
*(to_p++)= ' ';
to_p= add_identifier(to_p, end_p, subpart_name, subpart_name_len,
ER_SUBPARTITION_NAME);
(explain_mode !=
EXPLAIN_PARTITIONS_AS_COMMENT_NO_QUOTING));
}
if (explain_mode == EXPLAIN_PARTITIONS_AS_COMMENT)
if (explain_mode == EXPLAIN_PARTITIONS_AS_COMMENT ||
explain_mode == EXPLAIN_PARTITIONS_AS_COMMENT_NO_QUOTING)
to_p= strnmov(to_p, " */", end_p - to_p);
}
DBUG_PRINT("exit", ("to '%s'", to));