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Re: BUG #4324: Default value for a column is not returned in select when column has not been explicitly set


  • From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
  • To: "Jeff Galyan" <jeff(at)richrelevance(dot)com>
  • Cc: pgsql-bugs(at)postgresql(dot)org
  • Subject: Re: BUG #4324: Default value for a column is not returned in select when column has not been explicitly set
  • Date: Sat, 26 Jul 2008 13:30:43 -0400
  • Message-id: <24201.1217093443@sss.pgh.pa.us> <text/plain>

"Jeff Galyan" <jeff(at)richrelevance(dot)com> writes:
> Take an existing table with some data in it and add a nullable column of
> type boolean with default value true.  In 8.2, 'select bool_column from
> my_table' would have returned 'true' for all rows where the column had not
> been explicitly set (which should be all of them at this point).

Works for me:

regression=# create table foo (f1 int);
CREATE TABLE
regression=# insert into foo values(1),(2);
INSERT 0 2
regression=# alter table foo add column b bool default true;
ALTER TABLE
regression=# select * from foo;
 f1 | b 
----+---
  1 | t
  2 | t
(2 rows)

Please provide a concrete test case to demonstrate what you are seeing.

			regards, tom lane



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