alamb opened a new issue, #6720:
URL: https://github.com/apache/arrow-datafusion/issues/6720
To me this doesn't look right. The previous test seems
correct. When putting a negation in front of interval I believe it should
negate the entire interval statement.
`interval '5' - '1' - '2' year` is one interval statement.
I think the statement
```
select -interval '5' - '1' - '2' year;
```
Should be interpreted as:
```
select - (interval '5' - '1' - '2' year);
```
Rather than
```
select (- interval '5') - '1' - '2' year;
```
If the user wants to negate only `5`, they should write it as follows (below
are all equivalents):
```
select interval '-5' - '1' - '2' year;
select interval - '5' - '1' - '2' year;
select - interval '5' year - interval '1' year - interval '2' year;
```
_Originally posted by @aprimadi in
https://github.com/apache/arrow-datafusion/pull/6698#discussion_r1232607304_
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