[CALCITE-4295] Composite of two checkers with SqlOperandCountRange throws IllegalArgumentException

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.25.0
• Fix Version/s: 1.26.0
• Component/s: core
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: Zhenghua Gao
• Created: 29/Sep/20 07:56
• Updated: 06/Oct/20 17:16
• Resolved: 01/Oct/20 07:08

Description

If we define a type checker with:

```

OperandTypes.or(

    OperandTypes.variadic(SqlOperandCountRanges.from(3),

    OperandTypes.variadic(SqlOperandCountRanges.from(4))

```

will throw a java.lang.IllegalArgumentException

The root cause is: 

the minMin function of CompositeOperandTypeChecker should return the minimum of lower bound of all SqlOperandCountRange

 

    

Issue Links

• links to: GitHub Pull Request #2184