👀 Views: 98 💬 Answers: 1 📅 Created: 2025-06-16

elasticsearch synonyms search json

I'm currently implementing a search feature using Elasticsearch 8.5, and I've run into a question when using a custom analyzer that includes a synonym filter... Despite having set up the analyzer correctly, queries that should match documents containing synonyms are returning no results. I defined my custom analyzer as follows: ```json { "settings": { "analysis": { "filter": { "synonym_filter": { "type": "synonym", "synonyms": [ "quick,fast", "jumps,leaps" ] } }, "analyzer": { "custom_analyzer": { "tokenizer": "standard", "filter": ["lowercase", "synonym_filter"] } } } }, "mappings": { "properties": { "text": { "type": "text", "analyzer": "custom_analyzer" } } } } ``` I've indexed a document containing "quick" and "jumps" in the `text` field. When I run a search query like this: ```json { "query": { "match": { "text": "fast leaps" } } } ``` I receive an empty result set. I've verified that the synonyms are loaded correctly and that the tokens are being analyzed as expected using the `_analyze` API: ```json POST /my_index/_analyze { "analyzer": "custom_analyzer", "text": "fast leaps" } ``` The response from the analyzer shows that the input is being tokenized correctly to "quick" and "jumps", but it seems that the search query is not matching the indexed document. I also tried using a `bool` query with `should` clauses to explicitly match each synonym, but the results were still empty. Is there a specific configuration or additional step I might be missing to ensure that synonyms work effectively in my search queries? Any help would be greatly appreciated. My development environment is Windows. What am I doing wrong? Thanks for any help you can provide! The stack includes Json and several other technologies. Any help would be greatly appreciated!