{ "schema": { "properties": { "column_names": { "items": { "description": "A list of column names that compose the primary key", "type": "string" }, "type": "array" }, "name": { "description": "The primary key index name", "type": "string" }, "type": { "type": "string" } }, "type": "object", "title": "TableMetadataPrimaryKeyResponse" }, "schemaType": "response" }