Feature "Search and retrieve"

About In this context… What links here? CONTENT [edit] EntityType "Feature" Keywords/Contexts Elasticsearch  Annotations HasGitHubRepository::www MentionsDomainTerm::Search Routing MentionsDomainTerm::Search Request Scope MentionsDomainTerm::Index Aliases MentionsDomainTerm::Search API MentionsDomainTerm::Search Requests MentionsDomainTerm::Query DSL MentionsDomainTerm::Node MentionsDomainTerm::Filter DSL [edit] [edit] Main Page ‎ (← links) Template:EntitiesByEntityType ‎ (← links) Property:PertainsToDomain ‎ (← links) Property:HasEntityType ‎ (← links) Property:HasEntityTitle ‎ (← links) Property:HasEntityKeyword ‎ (← links) Property:HasEntityTypeAndEntityTitle ‎ (← links) Property:HasGitHubRepository ‎ (← links) Feature ‎ (← links) Elasticsearch ‎ (← links) [edit] See below…

HasGitHubRepository www

Story

• Component 518024, Component0945587209
• Queries return score
• Filtered queries match or do no match
• Construct Search Requests ^Elastic as queries in combination with filter(s)
  • Search requests are sent to a Node ^Elastic, which sends it to all primary and replica shards for the index(es) being queried and returns sorted and ranked search results
  • Default Search Routing ^Elastic is "query_then_fetch"
  • Search Request Scope ^Elastic can be specified: indices, types, Index Aliases ^Elastic, index patterns (for searching multiple indexes)
  • Components:
    • query (search for docs containing "xyz" limited to docs having e.g. status=active)
    • size
    • from
    • _source (configure this to filter fields to be returned, if no stored field has been defined in mapping then the field is returned from _source, _source filtering is cheaper than using stored fields)
    • sort
• The Search API ^Elastic implements the Query DSL ^Elastic and the Filter DSL ^Elastic