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This commit is contained in:
Georgi Kodinov 2010-07-05 13:05:04 +03:00
commit ea140d862e
3 changed files with 67 additions and 9 deletions
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17
mysql-test/r/lowercase_view.result
View file

@ -148,3 +148,20 @@ a
DROP VIEW v1;
DROP TABLE t1;
End of 5.0 tests.
#
# Bug #53095: SELECT column_name FROM INFORMATION_SCHEMA.STATISTICS
# returns nothing
#
CREATE TABLE `ttt` (
`f1` char(3) NOT NULL,
PRIMARY KEY (`f1`)
) ENGINE=myisam DEFAULT CHARSET=latin1;
SELECT count(COLUMN_NAME) FROM INFORMATION_SCHEMA.STATISTICS WHERE TABLE_NAME =
'TTT';
count(COLUMN_NAME)
1
SELECT count(*) FROM INFORMATION_SCHEMA.STATISTICS WHERE TABLE_NAME = 'TTT';
count(*)
1
DROP TABLE `ttt`;
End of 5.0 tests.

22
mysql-test/t/lowercase_view.test
View file

@ -160,4 +160,26 @@ SELECT * FROM v1;
DROP VIEW v1;
DROP TABLE t1;
--echo End of 5.0 tests.
--echo #
--echo # Bug #53095: SELECT column_name FROM INFORMATION_SCHEMA.STATISTICS
--echo # returns nothing
--echo #
CREATE TABLE `ttt` (
`f1` char(3) NOT NULL,
PRIMARY KEY (`f1`)
) ENGINE=myisam DEFAULT CHARSET=latin1;
SELECT count(COLUMN_NAME) FROM INFORMATION_SCHEMA.STATISTICS WHERE TABLE_NAME =
'TTT';
SELECT count(*) FROM INFORMATION_SCHEMA.STATISTICS WHERE TABLE_NAME = 'TTT';
DROP TABLE `ttt`;
--echo End of 5.0 tests.

37
sql/sql_show.cc
View file

@ -2626,36 +2626,54 @@ bool get_lookup_field_values(THD *thd, COND *cond, TABLE_LIST *tables,
{
LEX *lex= thd->lex;
const char *wild= lex->wild ? lex->wild->ptr() : NullS;
bool rc= 0;
bzero((char*) lookup_field_values, sizeof(LOOKUP_FIELD_VALUES));
switch (lex->sql_command) {
case SQLCOM_SHOW_DATABASES:
if (wild)
{
lookup_field_values->db_value.str= (char*) wild;
lookup_field_values->db_value.length= strlen(wild);
thd->make_lex_string(&lookup_field_values->db_value,
wild, strlen(wild), 0);
lookup_field_values->wild_db_value= 1;
}
return 0;
break;
case SQLCOM_SHOW_TABLES:
case SQLCOM_SHOW_TABLE_STATUS:
case SQLCOM_SHOW_TRIGGERS:
case SQLCOM_SHOW_EVENTS:
lookup_field_values->db_value.str= lex->select_lex.db;
lookup_field_values->db_value.length=strlen(lex->select_lex.db);
thd->make_lex_string(&lookup_field_values->db_value,
lex->select_lex.db, strlen(lex->select_lex.db), 0);
if (wild)
{
lookup_field_values->table_value.str= (char*)wild;
lookup_field_values->table_value.length= strlen(wild);
thd->make_lex_string(&lookup_field_values->table_value,
wild, strlen(wild), 0);
lookup_field_values->wild_table_value= 1;
}
return 0;
break;
default:
/*
The "default" is for queries over I_S.
All previous cases handle SHOW commands.
*/
return calc_lookup_values_from_cond(thd, cond, tables, lookup_field_values);
rc= calc_lookup_values_from_cond(thd, cond, tables, lookup_field_values);
break;
}
if (lower_case_table_names && !rc)
{
/*
We can safely do in-place upgrades here since all of the above cases
are allocating a new memory buffer for these strings.
*/
if (lookup_field_values->db_value.str && lookup_field_values->db_value.str[0])
my_casedn_str(system_charset_info, lookup_field_values->db_value.str);
if (lookup_field_values->table_value.str &&
lookup_field_values->table_value.str[0])
my_casedn_str(system_charset_info, lookup_field_values->table_value.str);
}
return rc;
}
@ -3441,6 +3459,7 @@ int get_all_tables(THD *thd, TABLE_LIST *tables, COND *cond)
error= 0;
goto err;
}
DBUG_PRINT("INDEX VALUES",("db_name='%s', table_name='%s'",
STR_OR_NIL(lookup_field_vals.db_value.str),
STR_OR_NIL(lookup_field_vals.table_value.str)));