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https://issues.apache.org/jira/browse/SOLR-10266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15923703#comment-15923703
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Cao Manh Dat commented on SOLR-10266:
-------------------------------------
[~hossman] I checked the test and you actually right. The test is badly
written, It should change from
{code}
assertQ(req("q", "*:*", "fl", "id, " + dvFieldName, "sort", "product(-1," +
dvFieldName + ") asc"),
{code}
to
{code}
assertQ(req("q", "*:*", "fl", "id, " + dvFieldName, "sort", "product(-1,ms(" +
dvFieldName + ","+baseDate+")) desc")
{code}
But It does not mean that
bq. the sorting by function on DatePointField may not be working?
Because {{ProductFloatFunction}} for {{product()}} so the long value ( of date
field ) will be converted into float which lead into losing some last decimals.
So they will end up with same value {{7.8973554E11}}
> invalid assumptions about doc order in TestPointFields - possibly masking
> real bug in {{DatePointField}} ?
> ----------------------------------------------------------------------------------------------------------
>
> Key: SOLR-10266
> URL: https://issues.apache.org/jira/browse/SOLR-10266
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Hoss Man
> Attachments: SOLR-10266.patch
>
>
> There are a bunch of places in TestPointFields where {{assertQ()}} is used to
> verify that many docs match a query and have particular values -- but because
> of how the XPath expressions are written there are implicit assumptions about
> the order of the docs matching the order they were added to the index, which
> isn't always garunteed depending on the randomized merge policy that might be
> used.
> while fixing this, i also uncovered what _appears_ to be a more serious bug
> with {{DatePointField}} function sorting (either that, or a badly written
> test) that we need to get to the bottom of.
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