.. _ref-sql-operators: .. module:: trytond.sql.operators SQL Operators ============= .. class:: RangeOperator(first, second) Does the first range contain the second range or element? .. class:: RangeIn(first, second) Is the first range or element contained in the second range? .. class:: RangeOverlap(first, second) Does the ranges overlap, that is, have any elements in common?