Re: [basex-talk] query function like matches can't work fast as = op , how to optimizer it? how to create range index?

Thanks. but there is some way to create path/range index manually? -- 此致 easy 莫愁前路无知己，天下谁人不识君。 At 2013-11-19 04:02:28,"Christian Grün" <christian.gruen@gmail.com> wrote:

Hi Easy,

...

I found the @attribute='value' operation will fast after create attribute index, but function like matches,contains,starts-with has no effect even after create text index. how to optimum it , how to create path index, range index?

matches() works on arbitrary regular expressions, which is why a value index won’t be of any help. contains() is difficult, too, because it allows you to search for arbitrary substrings. starts-with() could indeed be rewritten to take advantage of an index structure, but this hasn’t been done yet.

Christian