Обсуждение: Issue with ALTER Table.
The Catalog Schema seems not to be actualized when using ALTER Table. I had reported a problem with adding NEW tables, which was corrected by Hiroshi http://postgresql.1045698.n5.nabble.com/SQLDescribeCol-schema-cache-not-being-updated-completely-tt4372956.html http://postgresql.1045698.n5.nabble.com/Error-Retrieving-Catalog-Info-tt4598955.html When "altering" a Datatype of column the problem still exists: Say, we have a column which is defined as varchar(40) Now we want to double the field length to varchar(80) ALTER TABLE customer ALTER COLUMN address TYPE varchar(80), When we retrieving the Catalog-Info the value of field length is 40 furthermore. After a new connect we get the correct values and only after that writing / reading to the altered field is working reliable. Has someone found a another workaround, idea, hint preventing a reconnect? regards, BGoebel -- View this message in context: http://postgresql.1045698.n5.nabble.com/Issue-with-ALTER-Table-tp5749048.html Sent from the PostgreSQL - odbc mailing list archive at Nabble.com.
On 20.03.2013 17:49, BGoebel wrote: > The Catalog Schema seems not to be actualized when using ALTER Table. > > I had reported a problem with adding NEW tables, which was corrected by > Hiroshi > > http://postgresql.1045698.n5.nabble.com/SQLDescribeCol-schema-cache-not-being-updated-completely-tt4372956.html > > http://postgresql.1045698.n5.nabble.com/Error-Retrieving-Catalog-Info-tt4598955.html > > When "altering" a Datatype of column the problem still exists: > Say, we have a column which is defined as varchar(40) > Now we want to double the field length to varchar(80) > > ALTER TABLE customer > ALTER COLUMN address TYPE varchar(80), > > When we retrieving the Catalog-Info the value of field length is 40 > furthermore. > > After a new connect we get the correct values and only after that writing / > reading to the altered field is working reliable. Can you provide a self-contained test case? That seems like the exact same thing reported by Jan-Peter Seifelt, in the first thread that you linked to, and that one was fixed. I can't reproduce it here, either. I tested the attached test case, but it correctly prints the new size after ALTER. - Heikki
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Our test bench had an error. psqlodbc30a.dll 9.1.2.1 is delivering the expected results. Hiroshi wrote he had no time for check this issue, and so i never checked our code. I am really sorry for that. BGoebel Heikki Linnakangas-6 wrote > On 20.03.2013 17:49, BGoebel wrote: >> The Catalog Schema seems not to be actualized when using ALTER Table. >> >> I had reported a problem with adding NEW tables, which was corrected by >> Hiroshi >> >> http://postgresql.1045698.n5.nabble.com/SQLDescribeCol-schema-cache-not-being-updated-completely-tt4372956.html >> >> http://postgresql.1045698.n5.nabble.com/Error-Retrieving-Catalog-Info-tt4598955.html >> >> When "altering" a Datatype of column the problem still exists: >> Say, we have a column which is defined as varchar(40) >> Now we want to double the field length to varchar(80) >> >> ALTER TABLE customer >> ALTER COLUMN address TYPE varchar(80), >> >> When we retrieving the Catalog-Info the value of field length is 40 >> furthermore. >> >> After a new connect we get the correct values and only after that writing >> / >> reading to the altered field is working reliable. > > Can you provide a self-contained test case? That seems like the exact > same thing reported by Jan-Peter Seifelt, in the first thread that you > linked to, and that one was fixed. I can't reproduce it here, either. I > tested the attached test case, but it correctly prints the new size > after ALTER. > > - Heikki > > > -- > Sent via pgsql-odbc mailing list ( > pgsql-odbc@ > ) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-odbc > > > alter-test.c (1K) > <http://postgresql.1045698.n5.nabble.com/attachment/5749243/0/alter-test.c> > common.h (5K) > <http://postgresql.1045698.n5.nabble.com/attachment/5749243/1/common.h> -- View this message in context: http://postgresql.1045698.n5.nabble.com/Issue-with-ALTER-Table-tp5749048p5749301.html Sent from the PostgreSQL - odbc mailing list archive at Nabble.com.