Alter Sequence allows MAXVALUE one over max value

[Chong Hsu]

Tested in 20150114 build.

Alter Sequence command allows MAXVALUE set to 9223372036854775807, that is one over allowed max value. See the example below:

SQL>CREATE SEQUENCE sq1;

--- SQL operation complete.

SQL>showddl SEQUENCE sq1;

CREATE SEQUENCE TRAFODION.HSU.SQ1
  START WITH 1 /* NEXT AVAILABLE VALUE 1 */
  INCREMENT BY 1
  MAXVALUE 9223372036854775806
  MINVALUE 1
  CACHE 25
  NO CYCLE
  LARGEINT
;

SQL>alter sequence seq1 maxvalue 9223372036854775807;

--- SQL operation complete.

SQL>create seq2 maxvalue 9223372036854775807;

*** ERROR[1576] MAXVALUE value is greater than maximum allowed for this sequence. [2015-01-14 21:24:50]