更新时间:2022-04-24 GMT+08:00
分享

PG_CATALOG

  • PG_CATALOG.shufflemasking(col text)

    对输入字符串混淆屏蔽后返回

    PG_CATALOG.shufflemasking(col text)函数原型为:

    pg_catalog.shufflemasking(col text) RETURNS text AS $$
    declare
        value text := reverse(col);
        size INTEGER := length(col);
    begin
        return reverse(reverse(left(value, size/2)) || reverse(right(value, size/2)));
    end;
    $$ LANGUAGE plpgsql;
    表1

    参数

    描述

    col

    待混肴的文本

  • PG_CATALOG.signal_backend(bigint, integer)

    语言内部功能

    PG_CATALOG.signal_backend(bigint, integer)函数原型为:

        pg_catalog.signal_backend(bigint, integer)
         RETURNS boolean
         LANGUAGE internal
         STRICT NOT FENCED NOT SHIPPABLE
        AS 'signal_backend';
分享:

    相关文档

    相关产品

close