Knowledge Base Search Operators

The following special operators can be used when searching the Knowledge Base:

Search Operators

• operator OR:

  hello | world
  

• operator NOT:

  hello -world
  

  • You can also use:

    hello !world
    

• field search operator:

  @title hello @answer world
  

• field position limit modifier:

  @answer[50] hello
  

• multiple-field search operator:

  @(title,answer) hello world
  

• all-field search operator:

  @* hello
  

• phrase search operator:

  "hello world"
  

• proximity search operator:

  "hello world"~10
  

• quorum matching operator:

  "the world is a wonderful place"/3
  

• strict order operator (aka operator "before"):

  aaa << bbb << ccc
  

• exact form modifier:

  raining =cats and =dogs
  

• field-start and field-end modifier:

  ^hello world$
  

Here's an example query that uses some of the above operators:

"hello world" @title "example program"~5 @answer python -(php|perl) @* code

Field Names

Valid field names include:

• title
• answer
• question
• node_id
• user_id
• type
• type_crc
• status
• status_crc
• answered
• created
• modified