tsearch2::build_query_postgres (private)

 tsearch2::build_query_postgres [ -query query ]

Defined in packages/tsearch2-driver/tcl/tsearch2-driver-procs.tcl

Convert conjunctions to query characters for tsearch2 use websearch_to_tsquery which is integrated in postgres >= 11 websearch_to_tsquery creates a tsquery value from querytext using an alternative syntax in which simple unformatted text is a valid query. Unlike plainto_tsquery and phraseto_tsquery, it also recognizes certain operators. Moreover, this function should never raise syntax errors, which makes it possible to use raw user-supplied input for search. The following syntax is supported:

• unquoted text: text not inside quote marks will be converted to terms separated by & operators, as if processed by plainto_tsquery.
• "quoted text": text inside quote marks will be converted to terms separated by <-> operators, as if processed by phraseto_tsquery.
• OR: logical or will be converted to the | operator.
• -: the logical not operator, converted to the ! operator.

For further documentation see also: https://www.postgresql.org/docs/11/textsearch-controls.html#TEXTSEARCH-PARSING-QUERIES

Switches:

-query

(optional)

string to convert

Returns:

returns formatted query string for tsearch2 tsquery

Partial Call Graph (max 5 caller/called nodes):

Testcases:

No testcase defined.

Source code:

    ad_try {
        db_1row build_querystring {select websearch_to_tsquery(:query) as query from dual}
    } on error {errorMsg} {
        ns_log warning "tsearch2 websearch_to_tsquery failed,"  "fall back to tcl query builder query was: $query errorMsg: $errorMsg"
        set query [tsearch2::build_query_tcl -query $query]
    }
    return $query

XQL Not present:

Generic, Oracle

PostgreSQL XQL file:

packages/tsearch2-driver/tcl/tsearch2-driver-procs-postgresql.xql