NullabilityAnalyzer (trino-main 358 API)

java.lang.Object
- io.trino.sql.planner.NullabilityAnalyzer

public final class NullabilityAnalyzer
extends Object

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`mayReturnNullOnNonNullInput(Expression expression)`	TODO: this currently produces a very conservative estimate.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - mayReturnNullOnNonNullInput
```
public static boolean mayReturnNullOnNonNullInput(Expression expression)
```
    TODO: this currently produces a very conservative estimate. We need to narrow down the conditions under which certain constructs can return null (e.g., if(a, b, c) might return null for non-null a only if b or c can be null.