presto-main/src/main/java/io/prestosql/sql/gen/PageFunctionCompiler.java/PageFunctionCompiler/compileFilter
class PageFunctionCompiler:    public Supplier<PageFilter> compileFilter(RowExpression filter, Optional<String> classNameSuffix)
    {
        if (filterCache == null) {
            return compileFilterInternal(filter, classNameSuffix);
        }
        return filterCache.getUnchecked(filter);
    }