Subject: Re: [xsl] xpath // query From: "Laura Jenkins" <xsl_list@xxxxxxxxxxx> Date: Wed, 24 Apr 2002 13:02:47 +0000 |
After thinking for a while, Im guessing it makes no difference to the selection time as the same number of nodes still need to be traversed. Theoretically, it may be slower as it involves an extra test. Is this correct? (or too insignificant to worry about)...
From: "Andrew Welch" <awelch@xxxxxxxxxxxxxxx> Reply-To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx To: "Xsl-List (E-mail)" <xsl-list@xxxxxxxxxxxxxxxxxxxxxx> Subject: [xsl] xpath // query Date: Wed, 24 Apr 2002 12:34:17 +0100
Hi list,
If I know that the element I am looking for will have a two certain ancestors, but an unknown number of elements in between, can I improve the xpath to reach the element by including the middle element?
For example, is:
select="A//C"
any different to:
select="A//B//C"
when I know that <B> is *guranteed* to be there (both select the same nodes). By adding the test for <B>, will it make the selection any faster?
After thinking for a while, Im guessing it makes no difference to the selection time as the same number of nodes still need to be traversed. Theoretically, it may be slower as it involves an extra test. Is this correct? (or too insignificant to worry about)...
cheers andrew
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