Subject: optimize XPath query to speed up processing
From: "Charlie G." <jcgautier@xxxxxxxxxxx>
Date: Thu, 8 Aug 2002 12:45:21 GMT
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Hello you all,
I d like to optimize the following Xpath query :
"//a/@href | //go/@href | //card/@onenterforward |
//card/@onenterbackward | //card/@ontimer | //template/@onenterforward
| //template/@onenterbackward | //template/@ontimer | //img/@src |
//option/@onpick "
I know it s bad to use // since the parser parses whole tree each time.
Goal : i want to get certain attributes values of certain nodes.
Eg. for the begining : if a node "<a>" has an attribute named "href" I
want to get the value of the "href" attribute ...
same for several nodes (go[with href] + card[with onenterforward or
onenterbackward or ontimer]) etc...
Is it possible to optimize my query to speed up processing ?
Shall i use 2 queries (which would be faster together? )
Thanks for help
Charlie
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