On Dec 7, 2016 5:07 PM, "Karsten Hilbert" <Karsten.Hilbert@xxxxxxx> wrote:
>
> On Wed, Dec 07, 2016 at 07:57:54AM -0800, Rich Shepard wrote:
>
> > I have used '-- ' to enter comments about tables or columns and am curious
> > about the value of storing comments in tables using the COMMENT key word.
> > When is the latter more appropriate than the former?
>
> "--" only means "comment" to SQL code (such as in scripts).
> PostgreSQL itself simply ignores it.
>
> OTOH, using "comment on ... is ..." tells PostgreSQL to
> _store_ a comment on a database object for later retrieval.
>
This also means that tools like pg_autodoc can include it as part of the generated documentation.
> Karsten
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