@Override
    protected CompiledExpression compileSetAttribute(ExpressionBuilder expressionBuilder) {
        return null;
    }
Compiles the expression in a set clause

@param expressionBuilder helps visiting the conditions in order to compile the condition
@return compiled expression that can be used for matching events in find, contains, delete, update and
updateOrAdd
modules/siddhi-core/src/test/java/io/siddhi/core/query/table/util/TestStore.java