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Fix vague comment in jsonb documentation

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The sample query fails because of an attempt to update the key of a numeric.
But the comment says it's just because of the missing object key.  That's not
correct because jsonb subscription automatically adds missing keys.

Reported-by: Nikita Konev
This commit is contained in:
Alexander Korotkov
2021-03-09 18:16:03 +03:00
parent 14d9b37607
commit 6540cc517d
1 changed files with 2 additions and 1 deletions
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doc/src/sgml/json.sgml
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@ -648,7 +648,8 @@ SELECT ('[1, "2", null]'::jsonb)[1];
UPDATE table_name SET jsonb_field['key'] = '1'; UPDATE table_name SET jsonb_field['key'] = '1';
-- This will raise an error if any record's jsonb_field['a']['b'] is something -- This will raise an error if any record's jsonb_field['a']['b'] is something
-- other than an object. For example, the value {"a": 1} has no 'b' key. -- other than an object. For example, the value {"a": 1} has a numeric value
-- of the key 'a'.
UPDATE table_name SET jsonb_field['a']['b']['c'] = '1'; UPDATE table_name SET jsonb_field['a']['b']['c'] = '1';
-- Filter records using a WHERE clause with subscripting. Since the result of -- Filter records using a WHERE clause with subscripting. Since the result of