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merge

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This commit is contained in:
Mattias Jonsson
2009-09-29 10:12:04 +02:00
parent 5f8bb5c507 43e6919d56
commit 1d1a293b26
9 changed files with 271 additions and 31 deletions
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58
sql/sql_table.cc
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@ -70,15 +70,21 @@ static void wait_for_kill_signal(THD *thd)
/**
@brief Helper function for explain_filename
@param thd Thread handle
@param to_p Explained name in system_charset_info
@param end_p End of the to_p buffer
@param name Name to be converted
@param name_len Length of the name, in bytes
*/
static char* add_identifier(char *to_p, const char * end_p,
const char* name, uint name_len, bool add_quotes)
static char* add_identifier(THD* thd, char *to_p, const char * end_p,
const char* name, uint name_len)
{
uint res;
uint errors;
const char *conv_name;
char tmp_name[FN_REFLEN];
char conv_string[FN_REFLEN];
int quote;
DBUG_ENTER("add_identifier");
if (!name[name_len])
@ -102,19 +108,21 @@ static char* add_identifier(char *to_p, const char * end_p,
conv_name= conv_string;
}
if (add_quotes && (end_p - to_p > 2))
quote = thd ? get_quote_char_for_identifier(thd, conv_name, res - 1) : '"';
if (quote != EOF && (end_p - to_p > 2))
{
*(to_p++)= '`';
*(to_p++)= (char) quote;
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 (length == 1 && *conv_name == (char) quote)
{
if ((end_p - to_p) < 3)
break;
*(to_p++)= '`';
*(to_p++)= (char) quote;
*(to_p++)= *(conv_name++);
}
else if (((long) length) < (end_p - to_p))
@ -125,7 +133,11 @@ static char* add_identifier(char *to_p, const char * end_p,
else
break; /* string already filled */
}
to_p= strnmov(to_p, "`", end_p - to_p);
if (end_p > to_p) {
*(to_p++)= (char) quote;
if (end_p > to_p)
*to_p= 0; /* terminate by NUL, but do not include it in the count */
}
}
else
to_p= strnmov(to_p, conv_name, end_p - to_p);
@ -145,6 +157,7 @@ static char* add_identifier(char *to_p, const char * end_p,
diagnostic, error etc. when it would be useful to know what a particular
file [and directory] means. Such as SHOW ENGINE STATUS, error messages etc.
@param thd Thread handle
@param from Path name in my_charset_filename
Null terminated in my_charset_filename, normalized
to use '/' as directory separation character.
@ -161,13 +174,12 @@ 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
*/
uint explain_filename(const char *from,
uint explain_filename(THD* thd,
const char *from,
char *to,
uint to_length,
enum_explain_filename_mode explain_mode)
@ -281,14 +293,12 @@ uint explain_filename(const char *from,
{
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= add_identifier(thd, to_p, end_p, db_name, db_name_len);
to_p= strnmov(to_p, ", ", end_p - to_p);
}
else
{
to_p= add_identifier(to_p, end_p, db_name, db_name_len,
(explain_mode !=
EXPLAIN_PARTITIONS_AS_COMMENT_NO_QUOTING));
to_p= add_identifier(thd, to_p, end_p, db_name, db_name_len);
to_p= strnmov(to_p, ".", end_p - to_p);
}
}
@ -296,16 +306,13 @@ uint explain_filename(const char *from,
{
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);
to_p= add_identifier(thd, to_p, end_p, table_name, table_name_len);
}
else
to_p= add_identifier(to_p, end_p, table_name, table_name_len,
(explain_mode !=
EXPLAIN_PARTITIONS_AS_COMMENT_NO_QUOTING));
to_p= add_identifier(thd, to_p, end_p, table_name, table_name_len);
if (part_name)
{
if (explain_mode == EXPLAIN_PARTITIONS_AS_COMMENT ||
explain_mode == EXPLAIN_PARTITIONS_AS_COMMENT_NO_QUOTING)
if (explain_mode == EXPLAIN_PARTITIONS_AS_COMMENT)
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);
@ -321,20 +328,15 @@ uint explain_filename(const char *from,
}
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,
(explain_mode !=
EXPLAIN_PARTITIONS_AS_COMMENT_NO_QUOTING));
to_p= add_identifier(thd, to_p, end_p, part_name, part_name_len);
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,
(explain_mode !=
EXPLAIN_PARTITIONS_AS_COMMENT_NO_QUOTING));
to_p= add_identifier(thd, to_p, end_p, subpart_name, subpart_name_len);
}
if (explain_mode == EXPLAIN_PARTITIONS_AS_COMMENT ||
explain_mode == EXPLAIN_PARTITIONS_AS_COMMENT_NO_QUOTING)
if (explain_mode == EXPLAIN_PARTITIONS_AS_COMMENT)
to_p= strnmov(to_p, " */", end_p - to_p);
}
DBUG_PRINT("exit", ("to '%s'", to));