getScale() and getPrecision() patch
От | David Esposito |
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Тема | getScale() and getPrecision() patch |
Дата | |
Msg-id | PEEDKNLDICKECFBNGNLLIEIDCBAA.esposito@newnetco.com обсуждение исходный текст |
Ответ на | getScale() and getPrecision() ("David Esposito" <esposito@newnetco.com>) |
Ответы |
Re: getScale() and getPrecision() patch
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Список | pgsql-jdbc |
With a little bit of hacking, I figured out the internal representation that PostGreSQL uses for its precision and scale values ... here's the diff for the patch: \postgresql-7.1\src\interfaces\jdbc\org\postgresql\jdbc2\ResultSetMetaData.j ava [root@TIMDA1 postgresbugfix]# diff ResultSetMetaData.java ResultSetMetaData.java-original 288,293d287 < case Types.NUMERIC: < Field f = getField(column); < if(f != null) < return ((0xFFFF0000)&f.mod)>>16; < else < return 0; 325,330d318 < case Types.NUMERIC: < Field f = getField(column); < if(f != null) < return (((0x0000FFFF)&f.mod)-4); < else < return 0; [root@TIMDA1 postgresbugfix]# > -----Original Message----- > From: pgsql-jdbc-owner@postgresql.org > [mailto:pgsql-jdbc-owner@postgresql.org]On Behalf Of David Esposito > Sent: Wednesday, May 02, 2001 12:55 PM > To: pgsql-jdbc@postgresql.org > Subject: [JDBC] getScale() and getPrecision() > > > Is there a reason that getScale() and getPrecision() both return zero for > NUMERIC fields? It seems like this shouldn't be the case. In the example > fields below (generated by doing a \d on the table), it would > seem like the > getScale and Precision methods should return the numbers contained in the > parentheses. > > Or at least that's how the docs seem to read and that's how Oracle does it > too ... ;) > > catalog_item_id | numeric(11,0) | not null > catalog_item_category_id | numeric(11,0) | not null > catalog_item_manufacturer_no | character varying(20) | > catalog_item_manufacturer_url | character varying(50) | > catalog_item_retail_price | numeric(11,2) | not null > catalog_item_member_price | numeric(11,2) | not null > catalog_item_sellable | numeric(1,0) | not null > > -Dave > > > ---------------------------(end of broadcast)--------------------------- > TIP 6: Have you searched our list archives? > > http://www.postgresql.org/search.mpl
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