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Fix for BUG#27592: stack overrun when storing datetime value

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using prepared statements.


sql/field.cc:
  Using MAX_DATETIME_WIDTH or MAX_DATETIME_COMPRESSED_WIDTH
  constants for the length of DATETIME fields.
  
  Using MAX_DATE_STRING_REP_LENGTH for allocating buffers
  for date/time/... string representation.
sql/item_timefunc.cc:
  Using MAX_DATETIME_WIDTH or MAX_DATETIME_COMPRESSED_WIDTH
  constants for the length of DATETIME fields.
  
  Using MAX_DATE_STRING_REP_LENGTH for allocating buffers
  for date/time/... string representation.
sql/unireg.h:
  Introduce a constant for length of datetime compressed
  format (YYYYMMDDHHMMSS).
This commit is contained in:
unknown 2007-06-07 13:50:22 +04:00
commit 727757d299
3 changed files with 36 additions and 21 deletions
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sql/unireg.h
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@ -71,6 +71,7 @@
#define MAX_TIME_WIDTH 23 /* -DDDDDD HH:MM:SS.###### */
#define MAX_DATETIME_FULL_WIDTH 29 /* YYYY-MM-DD HH:MM:SS.###### AM */
#define MAX_DATETIME_WIDTH 19 /* YYYY-MM-DD HH:MM:SS */
#define MAX_DATETIME_COMPRESSED_WIDTH 14 /* YYYYMMDDHHMMSS */
#define MAX_TABLES (sizeof(table_map)*8-3) /* Max tables in join */
#define PARAM_TABLE_BIT (((table_map) 1) << (sizeof(table_map)*8-3))