Documentation

Query Tags are SQL comments which are made up of (key=value) pairs.

These are appended to the SQL statements generated by Hasura for GraphQL operations. This enables the ability to get some application context in the database logs and also use native database monitoring tools (e.g. pganalyze) for better performance analysis.

The application context(query tags) can be used to detect slow GQL operation and relate them back to the SQL that was generated.

For eg: SELECT name FROM child * request_id=487c2ed5-08a4-429a-b0e0-4666a82e3cc6, field_name=child, operation_name=GetChild *

For more usage information, refer Query Tags Docs

query-tags as SQL comment which is appended to the prepared SQL statement