CSV to POSTGRESQL COPY superuser error, using STDIN instead ?

Hi, i want to copy a csv file to postgresql database, but i have this error due to permission on postgresql server. I cannot have SUPERUSER permission on this shared hosting.

I see on stackoverflow it's possible to bypass using STDIN and not file reading. This option also exist into odo ?

```
psycopg2.ProgrammingError: must be superuser to COPY to or from a file
HINT: Anyone can COPY to stdout or from stdin. psql's \copy command also works for anyone.

```

```
sqlalchemy.exc.ProgrammingError: (psycopg2.ProgrammingError) must be superuser to COPY to or from a file
HINT: Anyone can COPY to stdout or from stdin. psql's \copy command also works for anyone.
```

Start by locating odo's PostgreSQL import path and the code that issues COPY through psycopg2 or SQLAlchemy. Check how input files are currently passed to PostgreSQL, then verify that a non-superuser import can use STDIN and that the CSV data loads successfully without the reported permission error.

Written by the indexing model from the issue text.