Query language specification

The text below represents the complete specification of the search query DSL (Domain Specific Language) used in text queries. See also Search operation tableSearch flow.

query:

  • regex-query
  • non-regex-query

regex-query:

  • ^pattern

non-regex-query:

  • unary-query
  • binary-query

unary-query:

  • word
  • word-pattern (since v.18.12)
  • phrase-query
  • field-name-query
  • numeric-range-query
  • date-range-query
  • parenthesized-query
  • not-query

phrase-query:

  • phrase-item-list

phrase-item-list:

  • phrase-item phrase-item
  • phrase-item-list phrase-item

phrase-item:

  • word
  • word-pattern (since v.18.12)
  • wildcard (since v.18.1)

word:

  • any word without special characters

word-pattern (since v.18.12)

  • any non-special characters
  • ? (question marks)
  • ?(n~m) (Wildcard groups, where n is byte-number, m is byte-number, and n <= m. For example: ?(1~2) )

wildcard: (since v.18.1)

  • byte-number
  • byte-number ~~ byte-number

byte-number: (since v.18.1)

  • Any integer number in the range from 0 to 255

field-name-query:

  • field-nameunary-query

numeric-range-query:

  • number ~~ number

number:

  • Any non-negative integer number

date-range-query:

  • daterange( date ~~ date )

date:

  • A date in the format ‘yyyy-MM-dd’. For example: 2019-09-16

parenthesized-query:

  • non-regex-query )

not-query:

  • unary-query
  • NOT unary-query

binary-query:

  • and-query
  • or-query

and-query:

  • non-regex-query & unary-query
  • non-regex-query AND unary-query

or-query:

  • non-regex-query | unary-query
  • non-regex-query || unary-query
  • non-regex-query OR unary-query

escape-sequence: (since v.19.2)

  • \*N
    *where N is one of
    ( ) : " & | ! ^ ~ * ? \
    or
    s (for space character)
  • \uhhhh
    where h is hexadecimal digit (for any Unicode character)

More resources

GitHub examples

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