MDEV-13005: Fixing bugs in SEQUENCE, part 3, 3/5

Task 3:
Added an additional condition for SEQUENCE option to check if cache < 0.

mysql-test/suite/sql_sequence/create.result

@@ -698,3 +698,6 @@ ERROR 42S02: Unknown SEQUENCE: 'x'
 # Task 2:
 CREATE SEQUENCE x START WITH 1 INCREMENT BY 123456789012345678;
 ERROR HY000: Sequence 'test.x' has out of range value for options
+# Task 3:
+CREATE SEQUENCE seq1 START WITH 1 cache -1;
+ERROR HY000: Sequence 'test.seq1' has out of range value for options

mysql-test/suite/sql_sequence/create.test

@@ -529,3 +529,7 @@ SET @x = PREVIOUS VALUE FOR x;
 --echo # Task 2:
 --error ER_SEQUENCE_INVALID_DATA
 CREATE SEQUENCE x START WITH 1 INCREMENT BY 123456789012345678;
+
+--echo # Task 3:
+--error ER_SEQUENCE_INVALID_DATA
+CREATE SEQUENCE seq1 START WITH 1 cache -1;

sql/sql_sequence.cc

@@ -121,7 +121,7 @@ bool sequence_definition::check_and_adjust(bool set_reserved_until)
       start >= min_value &&
       max_value != LONGLONG_MAX &&
       min_value != LONGLONG_MIN &&
-      cache < (LONGLONG_MAX - max_increment) / max_increment &&
+      cache >= 0 && cache < (LONGLONG_MAX - max_increment) / max_increment &&
       ((real_increment > 0 && reserved_until >= min_value) ||
        (real_increment < 0 && reserved_until <= max_value)))
     DBUG_RETURN(FALSE);