Обсуждение: NAMEDATALEN change

We need to change the maximum length of table/column name lengths, and it looks as if changing NAMEDATALEN in src/include/postgres_ext.h and recompiling postgres.

2 questions:

a) Do I need to dump the database and reload ? (my guess is yes but only a guess ...)

b) any caveats or warnings about this ?

TIA,

Greg Williamson
Senior DBA
GlobeXplorer LLC, a DigitalGlobe company

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"Gregory Williamson" <Gregory.Williamson@digitalglobe.com> writes:
> a) Do I need to dump the database and reload ?

Yes.  (Any reasonably modern backend will in fact refuse to start
if pg_control shows an incompatible nameDataLen.)  This is not a
lot different from changing --enable-integer-datetimes, for instance.

            regards, tom lane