[FLINK-18731] The monotonicity of UNIX_TIMESTAMP function is not correct

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.12.0
• Component/s: Table SQL / Planner
• Labels: pull-request-available
• Assignee: godfrey he
• Reporter: godfrey he
• Created: 27/Jul/20 12:27
• Updated: 18/Nov/20 08:33
• Resolved: 18/Nov/20 08:33

Description

Currently, the monotonicity of UNIX_TIMESTAMP function is always INCREASING, actually, when it has empty function arguments (UNIX_TIMESTAMP(), is equivalent to NOW()), its monotonicity is INCREASING. otherwise its monotonicity should be NOT_MONOTONIC. (e.g. UNIX_TIMESTAMP(string))

Issue Links

• links to: GitHub Pull Request #12998