[GENERAL] XML Index again

[Chris Roffler]

I still have some problems with my xml index

CREATE INDEX xml_index
  ON time_series
  USING btree
  ((
  (xpath('/AttributeList/Attributes/Attribute/Name/text()',
external_attributes))[1]::text));

When I run the following query the index is not used :

select id from time_series where
array_upper(
(xpath('/AttributeList/Attributes/Attribute[Name="Attribute122021"]',
external_attributes))
, 1) > 0

Any Idea on how to configure the index ?

Thanks
Chris