X_ENTITY_OPERATOR_UNKNOWN

a predicate names an operator outside the vocabulary

an operator that is not one of the closed set Operator declares — usually a SQL symbol ('>' for gt) or a different case ('GT'), reaching the plan through a cast, an operator built from a string, or a test run with no typecheck. Refused where the chain is written (andWhere) and again by both drivers for a plan built by hand, identically: before this the memory driver matched NO row with no error and the Postgres driver failed with a misleading X_SQL_UNSAFE. 500 — nothing the caller sends changes the answer, and the repair is an edit to source

the fix opens with the call, the operator meant substituted — andWhere('likes', 'gt', value) # operators: eq, neq, … — and a placeholder with the whole list when nothing is close. SQL symbols map >→gt, >=→gte, <→lt, <=→lte, =→eq, !=/<>→neq; a known word in another case or with _ maps to itself ('GT', 'is_null'). The list is OPERATORS in @ultimat3/entity, and isOperator() tests a value read off the wire