Reputation: 309
Tried to implement partial text search with postgresql and django,used the following query
Entry.objects.filter(headline__contains="search text")
This returns records having exact match,ie suppose checking for a match against the record "welcome to the new world" with query __contains="welcome world" , returns zero records
How can i implement this partial text search with postgresql-8.4 and django?
Upvotes: 2
Views: 1441
Reputation: 337
If you want this exact partial search you can use the startswitch field lookup method: Entry.objects.filter(headline__startswith="search text"). See more info at https://docs.djangoproject.com/en/dev/ref/models/querysets/#startswith.
This method creates a LIKE query ("SELECT ... WHERE headline LIKE 'search text%'") so if you're looking for a fulltext alternative you can check out PostgreSQL's built in Tsearch2 extension or other options such as Xapian, Solr, Sphinx, etc.
Each of the former engines mentioned have Django apps that makes them easier to integrate: Djapian for Xapian integration or Haystack for multiple integrations in one app.
Upvotes: 2