云数据库 GaussDB-PG_CATALOG

时间:2023-11-01 16:22:24

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';
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