commit | 85048f496323587f18bd0e07223351ce22c52299 | [log] [tgz] |
---|---|---|
author | Borui Tao <borui.tao@ericsson.com> | Tue Jul 03 08:56:02 2018 -0400 |
committer | David Pursehouse <dpursehouse@collab.net> | Thu Jul 12 08:31:36 2018 +0900 |
tree | 28b8e22dfcca8adebd860bb7f0e44dec2bc4114a | |
parent | 0e2e776953db9ecc2795c800de10f8349be03d4b [diff] |
Elasticsearch: Add char analyzer to ensure consistency of query results When using Elasticsearch, doing a query that involved the characters "." and "_", from full text fields, did not include results with keywords as a substring. This behavior was different from Lucene, where these two characters are mapped to the space character (" ") so that the query returns keywords separated by them. This change adds character mappings for Elasticsearch in order to ensure that the full-text queries return same results as when using Lucene. At index creation time, this change creates a new elasticsearch setting where an analyzer with character mappings is configured. This analyzer is then added to the elasticsearch mappings to be used by the full-text field queries. Because the elasticsearch mappings and settings can only be configured at index creation time, one should take the following steps to apply this change: 1. delete the index (changes, accounts, groups). 2. initialize an Elasticsearch site with this change. 3. reindex the documents (changes, accounts, groups). 4. start the site. This change applies to all the currently supported Elasticsearch versions. Bug: Issue 9146 Bug: Issue 9147 Change-Id: I6da7a98d35d912b5bee7cc510d02db4433f25538
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