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Bug#9102 - Stored proccedures: function which returns blob causes crash

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Initialization of fields for sp return type was not complete.


mysql-test/r/sp.result:
  Bug#9102
    Test for bug
mysql-test/t/sp.test:
  Bug#9102
    Test for bug
sql/mysql_priv.h:
  Bug#9102
    new function: sp_prepare_create_field()
sql/sp_head.cc:
  Strip spaces and do charset conversion for sp function typelibs
sql/sql_table.cc:
  Bug#9102
    new function - sp_prepare_create_field()
    prepares create_field in similar way to mysql_prepare_table()
sql/sql_yacc.yy:
  Bug#9102
This commit is contained in:
unknown
2005-04-19 09:09:25 +01:00
parent d0eecb394d
commit 9bf92ed6fe
6 changed files with 124 additions and 3 deletions
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71
sql/sql_table.cc
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@@ -1351,6 +1351,77 @@ static int mysql_prepare_table(THD *thd, HA_CREATE_INFO *create_info,
}
/*
Preparation of create_field for SP function return values.
Based on code used in the inner loop of mysql_prepare_table() above
SYNOPSIS
sp_prepare_create_field()
thd Thread object
sql_field Field to prepare
DESCRIPTION
Prepares the field structures for field creation.
*/
void sp_prepare_create_field(THD *thd, create_field *sql_field)
{
if (sql_field->sql_type == FIELD_TYPE_SET ||
sql_field->sql_type == FIELD_TYPE_ENUM)
{
uint32 field_length, dummy;
if (sql_field->sql_type == FIELD_TYPE_SET)
{
calculate_interval_lengths(sql_field->charset,
sql_field->interval, &dummy,
&field_length);
sql_field->length= field_length +
(sql_field->interval->count - 1);
}
else /* FIELD_TYPE_ENUM */
{
calculate_interval_lengths(sql_field->charset,
sql_field->interval,
&field_length, &dummy);
sql_field->length= field_length;
}
set_if_smaller(sql_field->length, MAX_FIELD_WIDTH-1);
}
if (sql_field->sql_type == FIELD_TYPE_BIT)
{
sql_field->pack_flag= FIELDFLAG_NUMBER |
FIELDFLAG_TREAT_BIT_AS_CHAR;
}
sql_field->create_length_to_internal_length();
if (sql_field->length > MAX_FIELD_VARCHARLENGTH &&
!(sql_field->flags & BLOB_FLAG))
{
/* Convert long VARCHAR columns to TEXT or BLOB */
char warn_buff[MYSQL_ERRMSG_SIZE];
sql_field->sql_type= FIELD_TYPE_BLOB;
sql_field->flags|= BLOB_FLAG;
sprintf(warn_buff, ER(ER_AUTO_CONVERT), sql_field->field_name,
"VARCHAR",
(sql_field->charset == &my_charset_bin) ? "BLOB" : "TEXT");
push_warning(thd, MYSQL_ERROR::WARN_LEVEL_NOTE, ER_AUTO_CONVERT,
warn_buff);
}
if ((sql_field->flags & BLOB_FLAG) && sql_field->length)
{
if (sql_field->sql_type == FIELD_TYPE_BLOB)
{
/* The user has given a length to the blob column */
sql_field->sql_type= get_blob_type_from_length(sql_field->length);
sql_field->pack_length= calc_pack_length(sql_field->sql_type, 0);
}
sql_field->length= 0; // Probably from an item
}
}
/*
Create a table