> For the complete documentation index, see [llms.txt](https://docs.collibra.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.collibra.com/data-quality-self-hosted/connections/supported-connections/unsupported-data-types.md).
# Unsupported data types
Data Quality & Observability (self-hosted) supports all standard data types in columns, but there are some limitations around certain data source connections and specific data types. The table below details the data types that Data Quality & Observability (self-hosted) does **not** support.
| Unsupported data type | Unsupported on |
| --------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
| ARRAY | All connections |
| BINARY | All connections |
| BINARY VARYING | Redshift Pushdown |
| BLOB | All connections |
| BYTES | Oracle Pushdown |
| CLOB | All connections |
| GEOGRAPHY | - BigQuery Pushdown
- Redshift Pushdown
|
| GEOMETRY | Redshift Pushdown |
| HASHMAP | All connections |
| HLLSKETCH | Redshift Pushdown |
| HYPERLOGLOG | Trino Pushdown |
| JSON | All connections |
| LIST | All connections |
| LONG RAW | Oracle Pushdown |
| MAP | All connections |
| MONEY | PostgreSQL |
| NCHAR | Oracle Pushdown |
| NCLOB | All connections |
| NVARCHAR2 | Oracle Pushdown |
| OBJECT | Pushdown |
| P4HYPERLOGLOG | Trino Pushdown |
| QDIGEST | Trino Pushdown |
| ROWID | Oracle Pushdown |
| SDO\_GEOMETRY | Oracle |
| SETDIGEST | Trino Pushdown |
| SQL\_VARCHAR | Redshift Pushdown |
| STRUCT | All connections |
| SUPER | Redshift Pushdown |
| TDIGEST | Trino Pushdown |
| UNKNOWN | All connections |
| VARBINARY | - Redshift Pushdown
- SAP HANA Pushdown
- Snowflake Pushdown
- SQL Server Pushdown
- Trino Pushdown
|
| VARBYTE | Redshift Pushdown |
| VARIANT | All connections |