[5.x] Fix filters for complex painless scripted fields#9244
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Backports PR #9171 **Commit 1:** Fix filters for complex painless scripted fields Painless scripted fields that consisted of more than a single expression would break when the user attempted to filter on them in Discover or Visualize because of the naive way we were building them. We now wrap the user's script in a lambda so that it can be as complex at they need it to be. The only special exception is that the user cannot define named functions since those cannot go inside a Painless lambda. Fixes #9024 Related elastic/elasticsearch#21635 * Original sha: b2a86bb * Authored by Matthew Bargar <mbargar@gmail.com> on 2016-11-21T23:18:20Z **Commit 2:** DRY it up * Original sha: 927de50 * Authored by Matthew Bargar <mbargar@gmail.com> on 2016-11-22T16:21:21Z **Commit 3:** Phrase tests * Original sha: 79e69bd * Authored by Matthew Bargar <mbargar@gmail.com> on 2016-11-22T16:48:12Z **Commit 4:** Only include necessary comparators and add tests * Original sha: 5b9137b * Authored by Matthew Bargar <mbargar@gmail.com> on 2016-11-22T17:38:59Z
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Fix filters for complex painless scripted fields
Backports PR #9171
Commit 1:
Fix filters for complex painless scripted fields
Painless scripted fields that consisted of more than a single expression
would break when the user attempted to filter on them in Discover or
Visualize because of the naive way we were building them. We now wrap
the user's script in a lambda so that it can be as complex at they need
it to be. The only special exception is that the user cannot define
named functions since those cannot go inside a Painless lambda.
Fixes #9024
Related elastic/elasticsearch#21635
Commit 2:
DRY it up
Commit 3:
Phrase tests
Commit 4:
Only include necessary comparators and add tests