mustafasrepo opened a new issue, #7154:
URL: https://github.com/apache/arrow-datafusion/issues/7154
### Is your feature request related to a problem or challenge?
The following syntax to define primary key
```sql
statement ok
CREATE EXTERNAL TABLE multiple_ordered_table2 (
a0 INTEGER,
a INTEGER,
b INTEGER,
c INTEGER,
d INTEGER,
primary key(c)
)
STORED AS CSV
WITH HEADER ROW
LOCATION 'tests/data/window_2.csv';
```
is not supported currently. (Datafusion accepts above query, primary key is
not parsed and information is ignored.)
If we were to support, above syntax following query would work without error.
```sql
SELECT c, b, SUM(d)
FROM multiple_ordered_table2
GROUP BY c;
```
Currently, above query gives error.
Similar in [issue
7152](https://github.com/apache/arrow-datafusion/issues/7152)
```sql
statement ok
CREATE EXTERNAL TABLE multiple_ordered_table2 (
a0 INTEGER,
a INTEGER,
b INTEGER,
c INTEGER primary key,
d INTEGER
)
STORED AS CSV
WITH HEADER ROW
LOCATION 'tests/data/window_2.csv';
```
syntax is not supported either for external tables.
### Describe the solution you'd like
I would like to have this support.
### Describe alternatives you've considered
_No response_
### Additional context
_No response_
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