topic Re: How to define a column tag in a table schema definition? in Data Engineering

How to define a column tag in a table schema definition?

b-baran — Thu, 14 Aug 2025 13:35:16 GMT

Setting a tag for a specific column can be done using the SQL command:
https://docs.databricks.com/aws/en/sql/language-manual/sql-ref-syntax-ddl-set-tag

Is there another possible way to define a column tag?

For example, it is possible to add a column comment and masking function as below via the schema definition.

schema = """

Primary_Key BIGINT COMMENT "Primary Key",

Masked_Value STRING COMMENT "Masked Value" MASK catalog.schema.mask_function

"""

Re: How to define a column tag in a table schema definition?

WiliamRosa — Tue, 19 Aug 2025 21:51:10 GMT

Hi @b-baran,
I couldn’t find any alternative in the official documentation — currently, the only supported way to define column tags is using ALTER TABLE ... ALTER COLUMN ... SET TAGS.

Re: How to define a column tag in a table schema definition?

b-baran — Wed, 20 Aug 2025 11:58:07 GMT

Thank you very much for response William

Re: How to define a column tag in a table schema definition?

WiliamRosa — Wed, 20 Aug 2025 12:08:15 GMT

You’re welcome @b-baran ! If you feel my answer addressed your question, could you please mark it as the solution to the post? Thank you very much!