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add nori_number token filter in analysis-nori #53583

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merged 5 commits into from
Mar 23, 2020
Merged

add nori_number token filter in analysis-nori #53583

merged 5 commits into from
Mar 23, 2020

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danmuzi
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@danmuzi danmuzi commented Mar 15, 2020

The KoreanNumberFilter has included in Nori after Lucene 8.2.0. (LUCENE-8812)
However, it isn't supported now in Nori Analysis plugin. (Kuromoji supports kuromoji_number)
It seems to be missing(#30397) because KoreanNumberFilter didn't exist at Lucene 7.4.0 that supports Nori first time.
This PR is for that.

@jrodewig jrodewig added :Search Relevance/Analysis How text is split into tokens >docs General docs changes labels Mar 16, 2020
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Pinging @elastic/es-search (:Search/Analysis)

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Pinging @elastic/es-docs (>docs)

@jimczi jimczi added >feature v7.7.0 v8.0.0 and removed >docs General docs changes labels Mar 16, 2020
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jimczi reviewed Mar 17, 2020
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Thanks for adding this filter danmuzi ! I left one comment regarding the discard_punctuation option of the tokenizer that was added to handle the number filter correctly.

docs/plugins/analysis-nori.asciidoc Show resolved Hide resolved
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danmuzi commented Mar 19, 2020

Thanks for your review, @jimczi 👍
I added some commits reflecting your comments.
But I'm not sure it's right to include the discard_punctuation option in this PR.
Because this PR is for nori_number token filter.
So I submitted commits separately.
If you think creating a new PR for discard_punctuation is better, I will write a new PR for that.
If so, I'll remove the discard_punctuation commit in this PR and rebase to master branch after discard_punctuation PR is submitted.
What do you think about this?

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I left two minor comments but the change looks good to me.

But I'm not sure it's right to include the discard_punctuation option in this PR.
Because this PR is for nori_number token filter.

I think it's ok since the discard_punctuation option was added specifically for the number token filter. Let's add both in the same pr, thanks for separating the commits though.

plugins/analysis-nori/src/test/java/org/elasticsearch/index/analysis/NoriAnalysisTests.java Show resolved Hide resolved
docs/plugins/analysis-nori.asciidoc
This filter does this kind of normalization and allows a search for 3200 to match ３．２천 in text,
but can also be used to make range facets based on the normalized numbers and so on.

Notice that this analyzer uses a token composition scheme and relies on punctuation tokens
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Maybe add add a NOTE: to emphasize this part ?

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Done!

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danmuzi commented Mar 20, 2020

Thanks Jim.
I added a commit based on your review.
It's about adding NOTE in asciidoc and test cases for discard_punctuation.
Please check it!

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jimczi commented Mar 23, 2020

@elasticmachine ok to test

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danmuzi commented Mar 23, 2020

I'm not sure why elasticsearch-ci/2 and elasticsearch-ci/bwc and elasticsearch-ci/default-distro are failed.
It doesn't seem related but I found an indentation problem in this PR.
And I rebased this patch to the latest master branch commit.

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danmuzi commented Mar 23, 2020

Because of the my rebase mistake, the previous Jenkins build history has been lost in this conversation.
So I attach the failure builds before the rebase.
elasticsearch-ci/2 : https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+pull-request-2/19332/
elasticsearch-ci/bwc : https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+pull-request-bwc/19021/
elasticsearch-ci/default-distro : https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+pull-request+default-distro/18876/

After the rebase, all Jenkins builds passed.

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jimczi approved these changes Mar 23, 2020
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LGTM, thanks @danmuzi !

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danmuzi commented Mar 23, 2020

Thanks for your kind reviews! @jimczi

@jimczi jimczi merged commit 8d4ff29 into elastic:master Mar 23, 2020
jimczi pushed a commit that referenced this pull request Mar 23, 2020
@danmuzi @jimczi
Add nori_number token filter in analysis-nori (#53583)
bc2289c 
This change adds the `nori_number` token filter.
It also adds a `discard_punctuation` option in nori_tokenizer that should be used in conjunction with the new filter.
@codebrain codebrain mentioned this pull request Apr 1, 2020
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@codebrain codebrain mentioned this pull request Apr 15, 2020
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>feature :Search Relevance/Analysis How text is split into tokens v7.7.0 v8.0.0-alpha1
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