cant get what I want from array_to_json (simple) - Mailing list pgsql-sql

From Michael Moore
Subject cant get what I want from array_to_json (simple)
Date
Msg-id CACpWLjOpxfWyJOOPZ6uDYMvfVWYzfZrhdHuoqXTACbWJd04B_A@mail.gmail.com
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Responses Re: cant get what I want from array_to_json (simple)  ("David G. Johnston" <david.g.johnston@gmail.com>)
List pgsql-sql
CREATE TYPE key_value_pair AS
   (key text,
    value text);

DO $$declare
   arr qsn_app.key_value_pair[]; 
   pcolumn_values_i json;
begin
  arr[0]  := ('this','that');
  arr[1]  := ('another','one');
  pcolumn_values_i := array_to_json( arr );
  RAISE NOTICE '#1 %', pcolumn_values_i;
end$$;

the 'NOTICE' shows:
NOTICE:  #1 [{"key":"this","value":"that"},{"key":"another","value":"one"}]
what I want to see is:
NOTICE:  #1 {"this":"that","another":"one"}

TIA,
Mike

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