冰排添加释冷时长

释冷时长 RELEASELEN 字段 1为1小时，0.5 是30分钟

SELECT a.RELEASELEN, A.*,A.rowid FROM materialmst A WHERE name='CS-H4000BC1'
SELECT a.RELEASELEN, A.*,A.rowid FROM materialmst A WHERE a.RELEASELEN is not null