AT NAMESPACE SYNC

CREATE GLOBAL TEMPORARY TABLE at_namespace_sync (
  namespacekey  dforeignkey,
  filename      dtext255,
  operation     CHAR(2) DEFAULT '  ' NOT NULL,
 
  CONSTRAINT at_fk_namespace_sync_fn
    FOREIGN KEY (filename) REFERENCES at_namespace_file (filename)
      ON UPDATE CASCADE
      ON DELETE CASCADE,
  CONSTRAINT at_chk_namespace_sync_op
    CHECK (operation IN ('  ', '< ', '> ', '>>', '<<', '==', '=>', '<=', '! ', '? '))
)
  ON COMMIT DELETE ROWS;