Show NULL values AS <NULL> not working

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Hi Dave and team,

Another slight bug (I think):

I have a table which has a column called "first_invalid" which should be a
timestamp if the record is invalid, or NULL if it's valid.
In PgAdmin I have the "Show NULL values as <NULL>" option enabled, but it
still displays a blank cell for this column.

The reason why I think it may not be a bug, is I tried doing this:

"SELECT COALESCE(first_invalid, '<NULL>') AS first_invalid FROM table"

but PostgreSQL threw it out because "<NULL>" is not a valid timestamp -
instead I had to do:

"SELECT COALESCE(first_invalid, '1900-01-01') AS first_invalid FROM table"

to prove the column is in fact NULL, and I do get: "1900-01-01
00:00:00+00"
for this record, but in the data entry grid, PgAdmin still displays it
blank.

Question: is this a bug, or intended behaviour?

Thanks,

Andy

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Hi Dave and team,<br><br>Another slight bug (I think):<br><br>I have a
table which has a column called &quot;first_invalid&quot; which should be
a timestamp if the record is invalid, or NULL if it&#39;s valid.<br>In
PgAdmin I have the &quot;Show NULL values as &lt;NULL&gt;&quot; option
enabled, but it still displays a blank cell for this column.
<br><br>The reason why I think it may not be a bug, is I tried doing
this:<br><br>&quot;SELECT COALESCE(first_invalid, &#39;&lt;NULL&gt;&#39;)
AS first_invalid FROM table&quot;<br><br>but PostgreSQL threw it out
because &quot;&lt;NULL&gt;&quot; is not a valid timestamp - instead I had
to do:
<br><br>&quot;SELECT COALESCE(first_invalid, &#39;1900-01-01&#39;) AS
first_invalid FROM table&quot;<br><br>to prove the column is in fact NULL,
and I do get: &quot;1900-01-01 00:00:00+00&quot; for this record, but in
the data entry grid, PgAdmin still displays it blank.
<br><br>Question: is this a bug, or intended
behaviour?<br><br>Thanks,<br><br>Andy<br>

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