alamb opened a new issue, #6205:
URL: https://github.com/apache/arrow-datafusion/issues/6205
### Describe the bug
I can add a date and an interval using the `interval` syntax
```
❯ select '2012-01-01'::date + interval '1 month';
+----------------------------------------------------------------------------+
| Utf8("2012-01-01") + IntervalMonthDayNano("79228162514264337593543950336")
|
+----------------------------------------------------------------------------+
| 2012-02-01
|
+----------------------------------------------------------------------------+
```
I can add a interval and date using the explicit `::interval` syntax:
```
❯ select '1 month'::interval + '2012-01-01'::date;
+--------------------------------------+
| Utf8("1 month") + Utf8("2012-01-01") |
+--------------------------------------+
| 2012-02-01 |
+--------------------------------------+
```
However, I can not add a `interval` and `date` using `interval` sytnax 🤯
```
❯ select interval '1 month' + '2012-01-01'::date;
This feature is not implemented: Unsupported interval argument. Expected
string literal, got: BinaryOp { left: Value(SingleQuotedString("1 month")), op:
Plus, right: Cast { expr: Value(SingleQuotedString("2012-01-01")), data_type:
Date } }
```
### To Reproduce
```
❯ select interval '1 month' + '2012-01-01'::date;
```
### Expected behavior
```
+--------------------------------------+
| Utf8("1 month") + Utf8("2012-01-01") |
+--------------------------------------+
| 2012-02-01 |
+--------------------------------------+
```
### Additional context
This looks like potentially a sqlparser-rs bug (or something about how
datafusion handles the resulting AST)
Originally filed by @jackwener as
https://github.com/apache/arrow-datafusion/issues/6180
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