All statements

Reference catalog of every supported top-level FeatureQL statement. Each page gives the complete syntax, explains every clause and modifier, and identifies grammar-recognized forms that are intentionally unavailable.

For functions used inside expressions, see All functions . For data types and names, see All types .

Query

• RETURN — define outputs, resolve namespaces, bind inputs, filter, sort, and paginate
• USE — set default and aliased namespaces for following statements
• Revision context — ON BRANCH / AS OF / DROP BRANCH for catalog history (managed registry)

Persisted features

• CREATE FEATURES — persist a query-defined feature set or one expression
• ALTER FEATURES — update catalog properties, lifecycle state, fields, and position
• DROP FEATURES — remove explicit names or a filtered feature set

Persisted views (SQL edge)

• CREATE / REFRESH / DROP VIEW — compile FeatureQL to a stored FMV. SQL relation for JDBC and /* SQL */ scans

Inspection and query tools

• SHOW — query feature, function, documentation, test, revision, and JDBC catalogs
• SHOW CREATE — reconstruct feature definitions as FeatureQL or generated SQL
• DESCRIBE/DESC — return compiler metadata for named features
• EXPLAIN — inspect a statement or multi-statement request without applying it
• FORMAT — render a statement or multi-statement request in canonical FeatureQL

Transactions

• START TRANSACTION/COMMIT — one HTTP request: persist mutations, or a TEMPORARY overlay plus one result; optional 'message' becomes the revision message

Managed-registry permissions

• Permission statements — manage users, groups, namespace groups, permission rules, and effective permissions