我有一个简单的表，如下所示：| uid | search_qeury | search_ts ||-------|-----------------|-----------------------------------|| uid_1 | {\'key1&quo...

我有一张简单的表格，如下所示：

| uid   | search_qeury    | search_ts                         |
|-------|-----------------|-----------------------------------|
| uid_1 | {"key1":"val1"} | 2024-08-16 08:06:26.283557 +00:00 |
| uid_2 | {"key2":"val2"} | 2024-08-16 08:06:26.283557 +00:00 |

直接描述语言（DDL）：

CREATE TABLE IF NOT EXISTS users_searches
(
    uid                varchar      NOT NULL,
    search_query       json         NOT NULL,
    search_ts          timestamptz  NOT NULL
);

我需要做的是将这些值聚合到一个包含以下列的新表中： uid , searching_4h , searching_8h , searching_12h

因此我编写了一个代码来按照以下方式实现该功能：

SELECT
    uid,
    JSON_AGG(search_query) FILTER (WHERE search_ts > CURRENT_TIMESTAMP - INTERVAL '4' HOUR)  AS searches_4h,
    JSON_AGG(search_query) FILTER (WHERE search_ts > CURRENT_TIMESTAMP - INTERVAL '8' HOUR)  AS searches_8h,
    JSON_AGG(search_query) FILTER (WHERE search_ts > CURRENT_TIMESTAMP - INTERVAL '12' HOUR) AS searches_12h
FROM users_searches
WHERE search_ts > CURRENT_TIMESTAMP - INTERVAL '12' HOUR
GROUP BY uid

但需要大约 10 分钟才能完成。我想知道是否有更优化的方法来实现这一点。谢谢