Bala Kolla created COUCHDB-2861:
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Summary: Provide an ability to disable the indexing of
array-length-field when using cloudant query
Key: COUCHDB-2861
URL: https://issues.apache.org/jira/browse/COUCHDB-2861
Project: CouchDB
Issue Type: Story
Security Level: public (Regular issues)
Components: Mango
Reporter: Bala Kolla
The array length field is a single extra field per unique path to an array. The
case where we found this was a client that had data that used arbitrary data as
keys which exploded the number of fields in Lucene. The obvious fix was to
switch to only indexing what they wanted to query on. Unfortunately that didn't
prevent the automatically created array length fields from being created.
This patch is a big hammer to remove the auto generated array length fields
which may be generally useful.
Though we're also planning on another patch that removes array length fields
for anything that's not specified in the index's field list
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