MDEV-7563 Support CHECK constraint as in (or close to) SQL Standard

MDEV-10134 Add full support for DEFAULT

- Added support for using tables with MySQL 5.7 virtual fields,
  including MySQL 5.7 syntax
- Better error messages also for old cases
- CREATE ... SELECT now also updates timestamp columns
- Blob can now have default values
- Added new system variable "check_constraint_checks", to turn of
  CHECK constraint checking if needed.
- Removed some engine independent tests in suite vcol to only test myisam
- Moved some tests from 'include' to 't'. Should some day be done for all tests.
- FRM version increased to 11 if one uses virtual fields or constraints
- Changed to use a bitmap to check if a field has got a value, instead of
  setting HAS_EXPLICIT_VALUE bit in field flags
- Expressions can now be up to 65K in total
- Ensure we are not refering to uninitialized fields when handling virtual fields or defaults
- Changed check_vcol_func_processor() to return a bitmap of used types
- Had to change some functions that calculated cached value in fix_fields to do
  this in val() or getdate() instead.
- store_now_in_TIME() now takes a THD argument
- fill_record() now updates default values
- Add a lookahead for NOT NULL, to be able to handle DEFAULT 1+1 NOT NULL
- Automatically generate a name for constraints that doesn't have a name
- Added support for ALTER TABLE DROP CONSTRAINT
- Ensure that partition functions register virtual fields used. This fixes
  some bugs when using virtual fields in a partitioning function

1 files changed, 4 insertions, 1 deletions

diff --git a/sql/log_event.h b/sql/log_event.h
index bc850c22a14..0ce0e563796 100644
--- a/sql/log_event.h
+++ b/sql/log_event.h
@@ -4238,7 +4238,10 @@ public:
       Indicates that rows in this event are complete, that is contain
       values for all columns of the table.
      */
-    COMPLETE_ROWS_F = (1U << 3)
+    COMPLETE_ROWS_F = (1U << 3),
+
+    /* Value of the OPTION_NO_CHECK_CONSTRAINT_CHECKS flag in thd->options */
+    NO_CHECK_CONSTRAINT_CHECKS_F = (1U << 7)
   };
 
   typedef uint16 flag_set;