Re: jsonb_array_length: ERROR: 22023: cannot get array length of ascalar - Mailing list pgsql-general

From Adrian Klaver
Subject Re: jsonb_array_length: ERROR: 22023: cannot get array length of ascalar
Date
Msg-id 9f14c950-b175-2765-1b8b-6105ea6c6f2a@aklaver.com
Whole thread Raw
In response to Re: jsonb_array_length: ERROR: 22023: cannot get array length of a scalar  (Alexander Farber <alexander.farber@gmail.com>)
List pgsql-general
On 03/02/2018 10:58 AM, Alexander Farber wrote:
> I see, thank you for your comments, David and Adrian.
> 
> In the "tiles" column actually save either the JSON array of tiles - 
> when the user plays them
> 
> Or a string (which is jsonb too) concatenated of letters - when the user 
> swaps the letters.
> 
> Maybe I should rethink my table structure (I just want to "log" all 
> plays, swaps, skips, resigns in the words_moves table)...

Or make the string the value of an array:

[{"swap": "ТСНЦУЭ"}]

so you are not changing the inner JSON in the field.

> 
> Or maybe I should always check for the "action" column first (acts as 
> enum) - before accessing "tiles" column....
> 
> Regrads
> Alex
> 


-- 
Adrian Klaver
adrian.klaver@aklaver.com


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