Thanks for the tip. On 09/08/2022 17:49, Majewski, Steven Dennis (sdm7g) wrote:
You can also do this maybe more simply in XQuery. In that case, you may want to remove any whitespace differences on ingest ( or else, use normalize-space() in comparisons ) [ In BaseX, there is an option to strip whitespace on parse. ]Exactly how, depends on how you are defining EQUALs, ( i.e. comparing @lon & @lat values alone, or including text in the comparison ) and what you want to do in a conflict ( use first or use last or maybe drop both and report ) let $doc := <data> <entries> <wpt lat="46.98520" lon="6.8831"> <name>London</name> </wpt> <wpt lat="46.98520" lon="2.8831"> <name>Paris</name> </wpt> <wpt lat="46.98520" lon="-4.8831"> <name>Manhattan</name> </wpt> <wpt lat="46.98520" lon="6.8831"> <name>London 2</name> </wpt> <wpt lat="46.98520" lon="-4.8831"> <name>New York</name> </wpt> </entries> </data> for $x in $doc/entries/wpt where not( $x/@lon = $x/following-sibling::wpt/@lon and $x/@lat = $x/following-sibling::wpt/@lat ) return $x The above compares @lon & @lat and only includes the last in a conflict: <wpt lat="46.98520" lon="2.8831"><name>Paris</name></wpt> <wpt lat="46.98520" lon="6.8831"><name>London</name></wpt> <wpt lat="46.98520" lon="-4.8831"><name>New York</name></wpt> Change the “where” condition to compare the complete wpt element and keep the first occurrence by changing the comparison to preceding-sibling:: where not( $x = $x/preceding-sibling::wpt )
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