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From: Dan Kortschak <[email protected]>
To: Alban Hertroys <[email protected]>
Cc: PostgreSQL General <[email protected]>
Subject: Re: re-novice coming back to pgsql: porting an SQLite update statement to postgres
Date: Sat, 14 Sep 2024 10:30:08 +0000
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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On Sat, 2024-09-14 at 12:05 +0200, Alban Hertroys wrote:
> 
> That’s because the replacement data is an array of objects, not a
> single object.
> 
> You need to iterate through the array elements to build your
> replacement data, something like what I do here with a select
> (because that’s way easier to play around with):
> 
> with dollar6 as (
> select jsonb($$[
>                                                 {
>                                                         "data": {
> "foo": 1, "bar": 2
>                                                         },
>                                                         "end": "2023-
> 06-12T19:54:51Z",
>                                                         "start":
> "2023-06-12T19:54:39Z"
>                                                 }
>                                         ]$$::text) replacement
> )
> select *
> from dollar6
> cross join lateral jsonb_array_elements(replacement) r
> where (r->>'start')::timestamptz <= current_timestamp;


Thanks

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