[MM3-users] Re: Full-text searching: why Haystack instead of PostgreSQL?

Haystack supports multiple backends https://django-haystack.readthedocs.io/en/master/backend_support.html

• Solr
• ElasticSearch
• Whoosh
• Xapian

You should rephrase the question to something like "Why ElasticSearch instead of PostgreSQL?" And the answer: ElasticSearch is a focused, purpose-built, search engine with better performance for that very specific task. Right?