JCR SQL2之类的查询与转义无法正常工作

Question

此查询运行良好：

  Global symbol "$text" requires explicit package name at ./lockout.pl      line     55.
Can't use global @_ in "my" at ./lockout.pl line 61, near "= @_"
Can't use global $0 in "my" at ./lockout.pl line 68, near "= $0"
Can't use global $_ in "my" at ./lockout.pl line 79, near ". $_"
syntax error at ./lockout.pl line 93, near "}"

但是这个查询没有：

    SELECT n.* FROM [nt:unstructured] AS n
    WHERE n.property LIKE 'value'

错误也没有帮助：

    SELECT n.* FROM [nt:unstructured] AS n
    WHERE n.property LIKE 'value' ESCAPE '#'

那是什么给了什么？