To clarify Bert's question: Yes the text is saved as unfiltered, but there is a format column in the node_revisions table which describes how to format the node for that particular version. Changing the default site format after saving a node will not update this column.

As David remarked, changing parameters of formats in usage will be visible.

On Mon, Jan 10, 2011 at 10:56 AM, Jamie Holly <hovercrafter@earthlink.net> wrote:
That's how it works. Check_markup is called in node_prepare.

Jamie Holly
http://www.intoxination.net
http://www.hollyit.net


On 1/10/2011 7:58 AM, Earnie Boyd wrote:
> Bert Van Kets wrote:
> >  I was thought that Drupal saved the entered data in the database as is,
> >  unfiltered. The filtering is done on retrieval and rendering.
> >  Your finding conflicts with this.
> >
> >  How is the node content saved in the database then? As entered, or filtered?
> >
>
> My experience tells me that the database data contains the entered data
> and the filter controls the display of that data.
>
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