Non-string OpenSearch indexing in Amazon Neptune - Amazon Neptune
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Non-string OpenSearch indexing in Amazon Neptune

Non-string OpenSearch indexing in Amazon Neptune allows replicating non-string values for predicates to OpenSearch using the stream poller. All predicate values that can safely be converted to a corresponding OpenSearch mapping or datatype is then replicated to OpenSearch.

For non-string indexing to be enabled on a new stack, the Enable Non-String Indexing flag in the Amazon CloudFormation template must be set to true. This is the default setting. To update an existing stack to support non-string indexing, see Updating an existing stack below.

Note

  • It is best not to enable non-string indexing on engine versions earlier than 1.0.4.2.

  • OpenSearch queries using regular expressions for field names that match multiple fields, some of which contain string values and others of which contain non-string values, fail with an error. The same thing happens if full-text search queries in Neptune are of that type.

  • When sorting by a non-string field, append ".value" to the field name to differentiate it from a string field.

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