Re: new "row-level lock" error messages

Alvaro Herrera wrote:
> Peter Eisentraut wrote:
> 
> > I would suggest that these changes be undone, except that the old
> > "SELECT FOR ..." be replaced by a dynamic string that reverse-parses the
> > LockingClause to provide the actual clause that was used.
> 
> Here's a patch for this.

Pushed to 9.3 and master.  Sample output:

alvherre=# select * from foo, bar for update of foof for share of bar;
ERROR:  relation "foof" in FOR UPDATE clause not found in FROM clause

alvherre=# select * from foo, bar for update of foo for share of barf;
ERROR:  relation "barf" in FOR SHARE clause not found in FROM clause

Amusingly, the only test in which these error messages appeared, in
contrib/file_fdw, was removed after the two commits that changed the
wording.  So there's not a single test which needed to be tweaked for
this change.

-- 
Álvaro Herrera                http://www.2ndQuadrant.com/
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