Re: [JDBC] DatabaseMetaData.getTables()
On Sat, 27 Oct 2001 19:25:49 -0500, you wrote: There seems to be a problem with DatabaseMetaData.getTables() [...] It throws a NullPointerException: This may have been fixed by now: http://fts.postgresql.org/db/mw/msg.html?mid=1021572 Regards, René Pijlman [EMAIL PROTECTED] ---(end of broadcast)--- TIP 2: you can get off all lists at once with the unregister command (send unregister YourEmailAddressHere to [EMAIL PROTECTED])
Re: [JDBC] DatabaseMetaData.getTables()
I forgot to mention I'm using the current CVS. On Sun, Oct 28, 2001 at 10:07:06AM +0100, Rene Pijlman wrote: On Sat, 27 Oct 2001 19:25:49 -0500, you wrote: There seems to be a problem with DatabaseMetaData.getTables() [...] It throws a NullPointerException: This may have been fixed by now: http://fts.postgresql.org/db/mw/msg.html?mid=1021572 Regards, René Pijlman [EMAIL PROTECTED] -- Jason Davies [EMAIL PROTECTED] PGP signature
Re: [JDBC] DatabaseMetaData.getTables()
It appears the getBytes was previously being used to return a byte array of any arbitrary column. Fixes for blobs seem to have broken this. The question is as Jason pointed out which do we fix. It doesn't seem unreasonable to be able to return a byte array for any arbitray column. On the other hand is this the intended use? Dave -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Jason Davies Sent: October 27, 2001 8:26 PM To: [EMAIL PROTECTED] Subject: [JDBC] DatabaseMetaData.getTables() Hi, There seems to be a problem with DatabaseMetaData.getTables() when I do the following: ResultSet R=conn.getMetaData().getTables(null, null, %, null); It throws a NullPointerException: java.lang.NullPointerException at org.postgresql.jdbc2.DatabaseMetaData.getTables(DatabaseMetaData.java:17 32) at Test.main(Test.java:66) Looking at the source, ResultSet.getBytes() is called and it returns null, causing this exception to be thrown. However I can use ResultSet.getString() without a problem. I'm using 7.1.3 at the moment. Does ResultSet.getBytes() need to be fixed or should getTables() be modified? I'd be grateful for any insights. Or you can just tell me to use the latest cvs version of PostgreSQL :) What is the consensus on supporting older versions, will you phase out old code when 7.2 comes out? -- Jason Davies [EMAIL PROTECTED] ---(end of broadcast)--- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
Re: [JDBC] DatabaseMetaData.getTables()
On Sun, Oct 28, 2001 at 07:14:42AM -0500, Dave Cramer wrote: It appears the getBytes was previously being used to return a byte array of any arbitrary column. Fixes for blobs seem to have broken this. The question is as Jason pointed out which do we fix. It doesn't seem unreasonable to be able to return a byte array for any arbitray column. On the other hand is this the intended use? This is what the documentation says: public byte[] getBytes(int columnIndex) throws SQLException Retrieves the value of the designated column in the current row of this ResultSet object as a byte array in the Java programming language. The bytes represent the raw values returned by the driver. It seems to imply that it _should_ return a byte array for any arbitary column. But as usual, it's up to us to decide. I think it's reasonable, since we are working with byte arrays in the code anyway. -- Jason Davies [EMAIL PROTECTED] PGP signature
Re: [JDBC] DatabaseMetaData.getTables()
Well I think we can restore the orignal functionality of getBytes so that it returns a byte array for other objects As long as we preserve the functionality for bytea types, and LargeObjects Dave -Original Message- From: Jason Davies [mailto:[EMAIL PROTECTED]] Sent: October 28, 2001 8:34 AM To: Dave Cramer Cc: [EMAIL PROTECTED] Subject: Re: [JDBC] DatabaseMetaData.getTables() On Sun, Oct 28, 2001 at 07:14:42AM -0500, Dave Cramer wrote: It appears the getBytes was previously being used to return a byte array of any arbitrary column. Fixes for blobs seem to have broken this. The question is as Jason pointed out which do we fix. It doesn't seem unreasonable to be able to return a byte array for any arbitray column. On the other hand is this the intended use? This is what the documentation says: public byte[] getBytes(int columnIndex) throws SQLException Retrieves the value of the designated column in the current row of this ResultSet object as a byte array in the Java programming language. The bytes represent the raw values returned by the driver. It seems to imply that it _should_ return a byte array for any arbitary column. But as usual, it's up to us to decide. I think it's reasonable, since we are working with byte arrays in the code anyway. -- Jason Davies [EMAIL PROTECTED] ---(end of broadcast)--- TIP 4: Don't 'kill -9' the postmaster
[JDBC] DatabaseMetaData.getTables()
Hi, There seems to be a problem with DatabaseMetaData.getTables() when I do the following: ResultSet R=conn.getMetaData().getTables(null, null, %, null); It throws a NullPointerException: java.lang.NullPointerException at org.postgresql.jdbc2.DatabaseMetaData.getTables(DatabaseMetaData.java:1732) at Test.main(Test.java:66) Looking at the source, ResultSet.getBytes() is called and it returns null, causing this exception to be thrown. However I can use ResultSet.getString() without a problem. I'm using 7.1.3 at the moment. Does ResultSet.getBytes() need to be fixed or should getTables() be modified? I'd be grateful for any insights. Or you can just tell me to use the latest cvs version of PostgreSQL :) What is the consensus on supporting older versions, will you phase out old code when 7.2 comes out? -- Jason Davies [EMAIL PROTECTED] PGP signature
