harlequin-odbc-vertica
A Harlequin adapter for Vertica via ODBC.
This adapter extends harlequin-odbc to fix Vertica-specific issues with catalog and column metadata retrieval.
Problem
The standard harlequin-odbc adapter has two issues when used with Vertica:
- Empty Data Catalog: Vertica's ODBC driver returns
Nonefor catalog names, causing all tables to be filtered out. - Column listing error: Vertica's ODBC driver does not support the
catalogparameter inSQLColumns, resulting inHYC00errors.
Solution
harlequin-odbc-vertica overrides two methods in the ODBC adapter:
_list_tables: UsesSELECT current_database()as a fallback when the catalog name isNone._list_columns_in_relation: Omits thecatalogparameter when callingpyodbc.Cursor.columns().
Installation
pip install harlequin-odbc-vertica
Or with uv:
uv tool install harlequin --with harlequin-odbc-vertica
Prerequisites
You need:
- Harlequin installed
- An ODBC driver manager (
unixodbcon macOS/Linux) - The Vertica ODBC driver installed and registered in
odbcinst.ini
Usage
harlequin -a odbc-vertica 'DRIVER={Vertica};SERVER=your-server;PORT=5433;DATABASE=your-db;UID=user;PWD=password'
License
MIT
Metadata
Release files for harlequin-odbc-vertica 0.1.1
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
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| harlequin_odbc_vertica-0.1.1.tar.gz | 3.6 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| harlequin_odbc_vertica-0.1.1-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 7.9 kB
Release files / harlequin_odbc_vertica-0.1.1.tar.gz
| Download URL | harlequin_odbc_vertica-0.1.1.tar.gz |
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