On 12/03/2012 10:32 AM, Tom Lane wrote:
Robert Haas <[email protected]> writes:
On Mon, Dec 3, 2012 at 6:38 AM, Amit Kapila <[email protected]> wrote:
opt_persistent: PERSISTENT { $$ = TRUE; }
| /*EMPTY*/ %prec Op { $$ = FALSE; }
;
I am not sure if there are any problems with above change.
We usually try to avoid operator precedence declarations. They
sometimes have unforeseen consequences.
Yes. This is not an improvement over factoring out opt_persistent as
I recommended previously.
This is by no means the first time this has come up. See
<http://wiki.postgresql.org/wiki/Fixing_shift/reduce_conflicts_in_Bison>
cheers
andrew
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