suite. This reduces the number of failures from 9 to 7.
Both ConnectionTest and JBuilderTest did not create their own
tables, which caused these test cases to fail with "relation ...
does not exist". It appears these test cases relied on tables
created by the example code elsewhere in the source tree. I've
added the necessary "create table" and "drop table" statements
to the test cases, using the column definitions from the example
code.
While working on that I modified the helper method createTable
in JDBC2Tests.java to take a table parameter, rather than using
table names passed via the properties in build.xml. I'm not sure
what that was good for, and in fact, except for the default
table name "jdbctest", this functionality wasn't used at all.
Ren? Pijlman
discussion on pgsql-hackers (especially the frightening memory dump in
<12273.999562219@sss.pgh.pa.us>), we decided that it is best not to
use identifiers from an untrusted source at all. Therefore, all
claims of the suitability of PQescapeString() for identifiers have
been removed.
Florian Weimer
>tcl-extension for postgreSQL.
>I'm currently using 7.0 and always getting a seg fault when I try to
>read from the database connection after issueing a "COPY table TO
>stdout;" (I'm using the connection handle, *not* the result handle).
>Maybe this is fixed in a later release.
>The README file in src/interfaces/libpgtcl tells me, that this should
>work, but unforunately it doesn't.
Yes, it seems broken. It is a bug in libpgtcl. Are you running Tcl >= 8.3.2?
That's when the Tcl team changed the data structure for channel
callbacks. The change itself was designed to be backward compatible, but I
suspect a related change made the code more sensitive to errors in the
structure (NULL pointers where functions are required). Either that, or
nobody has tried to use libpgtcl with COPY in a long time.
First, I have to say I can't think of a good reason to use PostgreSQL's
COPY command from a Tcl application. I think it should only be used with
psql for importing data from another source into PostgreSQL, or for
exporting PostgreSQL data into another database (but why would anyone do
that?) If it was me, I would stick with SELECT and INSERT and be "SQL
Compliant".
OK, editorial is over. Try applying the patch below to fix
src/interfaces/libpgtcl/pgtclId.c
and let us know if it works. I did little testing on it, but my test did
segfault before and ran fine (copy in and copy out) after the patch. This
is for PostgreSQL-7.1.2 - since you are running older 7.0, I don't know if
this will work, but I suspect it will.
PS It's the absence of PgWatchProc which kills it. I didn't upgrade it
to the "V2" channel type structure, so it should be compatible with older
Tcl's. But aside from gets and puts, I doubt any other file operations
would work on the handle during a copy.
ljb
>
>> On Mon, 3 Sep 2001 22:01:17 -0500, you wrote:
>> public boolean isWritable(int column) throws SQLException
>> {
>> return !isReadOnly(column);
>> }
Actually, I think this change has a consequence for this method
in the same class:
public boolean isDefinitelyWritable(int column)
throws SQLException
{
return isWritable(column);
}
This is from the JDBC spec
(http://java.sun.com/j2se/1.3/docs/api/java/sql/ResultSetMetaData.html):
isReadOnly() - Indicates whether the designated column is
definitely not writable.
isWritable() - Indicates whether it is possible for a write on
the designated column to succeed.
isDefinitelyWritable() - Indicates whether a write on the
designated column will definitely succeed.
At this time we don't really implement the fine semantics of
these methods. I would suggest the following defaults:
isReadOnly() false
isWritable() true
isDefinitelyWritable() false
And that would mean that your patch is correct, but
isDefinitelyWritable() would need to be patched accordingly:
public boolean isDefinitelyWritable(int column)
throws SQLException
{
return false;
}
Again, both in jdbc1 and jdbc2.
Regards,
Ren? Pijlman <rene@lab.applinet.nl>
>public boolean isWritable(int column) throws SQLException
>{
> if (isReadOnly(column))
> return true;
> else
> return false;
>}
The author probably intended:
public boolean isWritable(int column) throws SQLException
{
return !isReadOnly(column);
}
And if he would have coded it this way he wouldn't have made
this mistake :-)
>hence, isWritable() will always return false. this is something
>of a problem :)
Why exactly? In a way, true is just as incorrect as false, and
perhaps it should throw "not implemented". But I guess that
would be too non-backwardly-compatible.
>let me know if i can provide further information.
Will you submit a patch?
Regards,
Ren? Pijlman <rene@lab.applinet.nl>
-------------------------------------------------------------------
Subject: Re: [PATCHES] encoding names
From: Karel Zak <zakkr@zf.jcu.cz>
To: Peter Eisentraut <peter_e@gmx.net>
Cc: pgsql-patches <pgsql-patches@postgresql.org>
Date: Fri, 31 Aug 2001 17:24:38 +0200
On Thu, Aug 30, 2001 at 01:30:40AM +0200, Peter Eisentraut wrote:
> > - convert encoding 'name' to 'id'
>
> I thought we decided not to add functions returning "new" names until we
> know exactly what the new names should be, and pending schema
Ok, the patch not to add functions.
> better
>
> ...(): encoding name too long
Fixed.
I found new bug in command/variable.c in parse_client_encoding(), nobody
probably never see this error:
if (pg_set_client_encoding(encoding))
{
elog(ERROR, "Conversion between %s and %s is not supported",
value, GetDatabaseEncodingName());
}
because pg_set_client_encoding() returns -1 for error and 0 as true.
It's fixed too.
IMHO it can be apply.
Karel
PS:
* following files are renamed:
src/utils/mb/Unicode/KOI8_to_utf8.map -->
src/utils/mb/Unicode/koi8r_to_utf8.map
src/utils/mb/Unicode/WIN_to_utf8.map -->
src/utils/mb/Unicode/win1251_to_utf8.map
src/utils/mb/Unicode/utf8_to_KOI8.map -->
src/utils/mb/Unicode/utf8_to_koi8r.map
src/utils/mb/Unicode/utf8_to_WIN.map -->
src/utils/mb/Unicode/utf8_to_win1251.map
* new file:
src/utils/mb/encname.c
* removed file:
src/utils/mb/common.c
--
Karel Zak <zakkr@zf.jcu.cz>
http://home.zf.jcu.cz/~zakkr/
C, PostgreSQL, PHP, WWW, http://docs.linux.cz, http://mape.jcu.cz
flawed in the following ways:
1. Only returned columns that had a default value defined, rather than all
columns in a table
2. Used 2 * N + 1 queries to find out attributes, comments and typenames
for N columns.
By using some outer join syntax it is possible to retrieve all necessary
information in just one SQL statement. This means this version is only
suitable for PostgreSQL >= 7.1. Don't know whether that's a problem.
I've tested this function with current sources and 7.1.3 and patched both
jdbc1 and jdbc2. I haven't compiled nor tested the jdbc1 version though, as
I have no JDK 1.1 available.
Note the discussion in http://fts.postgresql.org/db/mw/msg.html?mid=1029626
regarding differences in obtaining comments on database object in 7.1 and
7.2. I was unable to use the following syntax (or similar ones):
select
...,
description
from
...
left outer join col_description(a.attrelid, a.attnum) description
order by
c.relname, a.attnum;
(the error was parse error at or near '(') so I had to paste the actual
code for the col_description function into the left outer join. Maybe
someone who is more knowledgable about outer joins might provide me with a
better SQL statement.
Jeroen van Vianen
the JDBC driver.
I've done this by extracting it into a new method object called
QueryExecutor (should go into org/postgresql/core/) and then taking it
apart into different methods in that class.
A short summary:
* Extracted ExecSQL() from Connection into a method object called
QueryExecutor.
* Moved ReceiveFields() from Connection to QueryExecutor.
* Extracted parts of the original ExecSQL() method body into smaller
methods on QueryExecutor.
* Bug fix: The instance variable "pid" in Connection was used in two
places with different meaning. Both were probably in dead code, but it's
fixed anyway.
Anders Bengtsson
for the changed files and a few new files:
- test/jdbc2/BatchExecuteTest.java
- util/MessageTranslator.java
- jdbc2/PBatchUpdateException.java
As an aside, is this the best way to submit a patch consisting
of both changed and new files? Or is there a smarter cvs command
which gets them all in one patch file?
This patch fixes batch processing in the JDBC driver to be
JDBC-2 compliant. Specifically, the changes introduced by this
patch are:
1) Statement.executeBatch() no longer commits or rolls back a
transaction, as this is not prescribed by the JDBC spec. Its up
to the application to disable autocommit and to commit or
rollback the transaction. Where JDBC talks about "executing the
statements as a unit", it means executing the statements in one
round trip to the backend for better performance, it does not
mean executing the statements in a transaction.
2) Statement.executeBatch() now throws a BatchUpdateException()
as required by the JDBC spec. The significance of this is that
the receiver of the exception gets the updateCounts of the
commands that succeeded before the error occurred. In order for
the messages to be translatable, java.sql.BatchUpdateException
is extended by org.postgresql.jdbc2.PBatchUpdateException() and
the localization code is factored out from
org.postgresql.util.PSQLException to a separate singleton class
org.postgresql.util.MessageTranslator.
3) When there is no batch or there are 0 statements in the batch
when Statement.executeBatch() is called, do not throw an
SQLException, but silently do nothing and return an update count
array of length 0. The JDBC spec says "Throws an SQLException if
the driver does not support batch statements", which is clearly
not the case. See testExecuteEmptyBatch() in
BatchExecuteTest.java for an example. The message
postgresql.stat.batch.empty is removed from the language
specific properties files.
4) When Statement.executeBatch() is performed, reset the
statement's list of batch commands to empty. The JDBC spec isn't
100% clear about this. This behaviour is only documented in the
Java tutorial
(http://java.sun.com/docs/books/tutorial/jdbc/jdbc2dot0/batchupdates.html).
Note that the Oracle JDBC driver also resets the statement's
list in executeBatch(), and this seems the most reasonable
interpretation.
5) A new test case is added to the JDBC test suite which tests
various aspects of batch processing. See the new file
BatchExecuteTest.java.
Regards,
Ren? Pijlman
two additional files win32.mak and libpgtcl.def.
This patch allows to compile libpgtcl.dll on Windows
with tcl > 8.0. I've tested it on WinNT (VC6.0), SUSE Linux (7.0)
and Solaris 2.6 with tcl 8.3.3.
Mikhail Terekhov
really played it totally safe in my last suggestion, the system table might
pick up the msg but not the netmsg.dll, so better try both.
I also added a hex printout of the "errno" appended to all messages, that's
nicer.
If anyone hate my coding style, or that i'm using goto constructs, just tell
me, and i'll rework it into a nested if () thing.
Magnus Naeslund(f)
system. Some systems did not understand the 'l' section, and in general
it wasn't entirely appropriate.
On SCO OpenServer, the man pages won't be installed at all until someone
figures out their man system.
Client headers are no longer in a subdirectory, since they have been made
namespace-clean.
Internal libpq headers are in a private subdirectory.
Server headers are in a private subdirectory. pg_config has a new option
to point there.
longer compiles, due to objects being referenced in this patch that do
not exist in JDK1.1.
Barry Lind
---------------------------------------------------------------------------
The JDBC driver requires
permission java.net.SocketPermission "host:port", "connect";
in the policy file of the application using the JDBC driver
in the postgresql.jar file. Since the Socket() call in the
driver is not protected by AccessController.doPrivileged() this
permission must also be granted to the entire application.
>>>>
>>>> permission java.net.SocketPermission "host:port", "connect";
>>>>
>>>>in the policy file of the application using the JDBC driver
>>>>in the postgresql.jar file. Since the Socket() call in the
>>>>driver is not protected by AccessController.doPrivileged() this
>>>>permission must also be granted to the entire application.
>>>>
>>>>The attached diff fixes it so that the connect permission can be
>>>>restricted just the the postgresql.jar codeBase if desired.
David Daney
org.postgresql.util.Serialize and org.postgresql.jdbc2.PreparedStatement
that fixes the ability to "serialize" a simple java class into a
postgres table.
The current cvs seems completely broken in this support, so the patch
puts it into working condition, granted that there are many limitations
with serializing java classes into Postgres.
The code to do serialize appears to have been in the driver since
Postgres 6.4, according to some comments in the source. My code is not
adding any totally new ability to the driver, rather just fixing what
is there so that it actually is usable. I do not think that it should
affect any existing functions of the driver that people regularly
depend on.
The code is activated if you use jdbc2.PreparedStatement and try to
setObject some java class type that is unrecognized, like not String or
not some other primitive type. This will cause a sequence of function
calls that results in an instance of Serialize being instantiated for
the class type passed. The Serialize constructor will query pg_class
to see if it can find an existing table that matches the name of the
java class. If found, it will continue and try to use the table to
store the object, otherwise an SQL exception is thrown and no harm is
done. Serialize.create() has to be used to setup the table for a java
class before anything can really happen with this code other than an
SQLException (unless by some freak chance a table exists that it thinks
it can use).
I saw a difference in Serialize.java between 7.1.3 and 7.2devel that I
didn't notice before, so I had to redo my changes from the 7.2devel
version (why I had to resend this patch now). I was missing the
fixString stuff, which is nice and is imporant to ensure the inserts
will not fail due to embedded single quote or unescaped backslashes. I
changed that fixString function in Serialize just a little since there
is no need to muddle with escaping newlines: only escaping single quote
and literal backslashes is needed. Postgres appears to insert newlines
within strings without trouble.
This patch moves the logic that looks up TypeOid, PGTypeName, and
SQLTypeName from Field to Connection. It is moved to connection since
it needs to differ from the jdbc1 to jdbc2 versions and Connection
already has different subclasses for the two driver versions. It also
made sense to move the logic to Connection as some of the logic was
already there anyway.
Barry Lind
following email.
> > The problem: When I call getBigDecimal() on a ResultSet, it
> > sometimes throws an exception:
> >
> > Bad BigDecimal 174.50
> > at org.postgresql.jdbc2.ResultSet.getBigDecimal(ResultSet.java:373)
> > at org.postgresql.jdbc2.ResultSet.getBigDecimal(ResultSet.java:984)
> > ...blah blah blah...
> > org.postgresql.util.PSQLException: Bad BigDecimal 174.50
Barry Lind
so it may be a transit problem. Also removed the 'txt' suffix
in case that was confusing some transport layer trying to be
too inteligent for our own good.
This may have been because the Array.java class from the
previous patch didn't seem to have made it into the snapshot
build for some reason. This patch should at least fix that issue.
Greg Zoller
