Robert Muir created LUCENE-5220:
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Summary: Expression SortField has crappy toString/bad
equals/hashcode
Key: LUCENE-5220
URL: https://issues.apache.org/jira/browse/LUCENE-5220
Project: Lucene - Core
Issue Type: Bug
Affects Versions: 4.6
Reporter: Robert Muir
Attachments: LUCENE-5220.patch
While doing some unrelated debugging:
I noticed when printing the Sort, the expressions get the inherited toString
for a CUSTOM comparator, which is not very good:
{noformat}
<custom:"sqrt(_score) + ln(popularity)": null>!
{noformat}
I think its better if it looks something like this instead:
{noformat}
<expr "sqrt(_score) + ln(popularity)">!
{noformat}
Also equals/hashcode is wrong: it will bogusly report equals(true) if the
expression is the same: but bindings could be different!
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