{"Entry":{"collection":"conn","key":"options","name":"options","aliases":["PGOPTIONS","options"],"metadata":{"aliases":["PGOPTIONS","options"],"category":"Session and protocol","content_hash":"146fa10f3f4cd5a29985fb01cf415fc8665daa89b39ef3c8c8ab6aa07d984f99","derived_content_hash":"3ec73b8c57ebeb056743455eb893ed6d8f59ef068e5f140fa2fdb4ad94ecbb7b","documentation_refresh":{"batch":"20261113","original_source_rev":"","versions":{"14":"14.25","15":"15.20","16":"16.16","17":"17.12","18":"18.7","19":"19rc2"}},"imported_at":"2026-09-30T00:40:35.007906+08:00","name":"options","name_zh":"","slug":"options","summary":"Specifies command-line options to send to the server at connection start. For example, setting this to -c geqo=off or --geqo=off sets the session's value of the geqo parameter to off . Spaces within this string are considered to separate command-line arguments, unless escaped with a backslash ( \\ ); write \\\\ to represent a literal backslash. 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For a detailed discussion of the available options, consult Chapter 19 ."],"manual_html":"\u003cdiv\u003e\u003cdl class=\"variablelist\"\u003e\u003cdt id=\"LIBPQ-CONNECT-OPTIONS\"\u003e\u003cspan class=\"term\"\u003e\u003ccode class=\"literal\"\u003eoptions\u003c/code\u003e\u003c/span\u003e \u003c/dt\u003e\u003cdd\u003e\n\u003cp\u003eSpecifies command-line options to send to the server at connection start. For example, setting this to \u003ccode class=\"literal\"\u003e-c geqo=off\u003c/code\u003e or \u003ccode class=\"literal\"\u003e--geqo=off\u003c/code\u003e sets the session's value of the \u003ccode class=\"varname\"\u003egeqo\u003c/code\u003e parameter to \u003ccode class=\"literal\"\u003eoff\u003c/code\u003e. Spaces within this string are considered to separate command-line arguments, unless escaped with a backslash (\u003ccode class=\"literal\"\u003e\\\u003c/code\u003e); write \u003ccode class=\"literal\"\u003e\\\\\u003c/code\u003e to represent a literal backslash. For a detailed discussion of the available options, consult \u003ca class=\"xref\" href=\"/docs/18/runtime-config.html\" title=\"Chapter 19. Server Configuration\"\u003eChapter 19\u003c/a\u003e.\u003c/p\u003e\n\u003c/dd\u003e\u003c/dl\u003e\u003c/div\u003e","related":[{"label":"Connection service file","url":"/docs/18/libpq-pgservice.html"},{"label":"Password file","url":"/docs/18/libpq-pgpass.html"},{"label":"All libpq environment variables","url":"/docs/18/libpq-envars.html"}],"sections":[{"paragraphs":["The following environment variables can be used to select default connection parameter values, which will be used by PQconnectdb , PQsetdbLogin and PQsetdb if no value is directly specified by the calling code. These are useful to avoid hard-coding database connection information into simple client applications, for example.","Service names can be defined in either a per-user service file or a system-wide file. 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