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Diffstat (limited to 'src/interfaces/jdbc/README_6.3')
| -rw-r--r-- | src/interfaces/jdbc/README_6.3 | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/interfaces/jdbc/README_6.3 b/src/interfaces/jdbc/README_6.3 new file mode 100644 index 0000000000..797d3ff99b --- /dev/null +++ b/src/interfaces/jdbc/README_6.3 @@ -0,0 +1,78 @@ +Ok, here's the JDBC patch. + +The jdbc6.3.tar.gz file that I've uploaded ftp.postgresql.org contains the +following files: + +README_6.3 This message +blob.patch The patch to src/backend/tcop/fastpath.c fixing large objects +jdbc.tar The entire jdbc driver + +I've put the entire driver here, rather than a patch, because its become +too complicated to do one this time. Files have been moved, two files +removed because they were obsolete, and there are a lot of new files. + +Heres what the patch does: + +* Memory overflow problem in the backend causing large objects to fail in + both libpq & jdbc (causing the backend to crash with a Segmentation + Violation) +* Problem with equals() method on the geometric support classes if the + class being checked wasn't the same class +* Fixed output of PGpath and PGpolygon support classes (missing , separator) +* Optimised the geometric support classes +* HTMLised the inline documentation, so the output of javadoc is easier + to read (mainly paragraphs) +* Removed obsolete class PGlobj (it never worked, and has been replaced + to read (mainly paragraphs) +* Removed obsolete class PGlobj (it never worked, and has been replaced + by the postgresql.largeobject package) +* Removed obsolete example JDBC_Test.java (replaced by new examples) +* Added < and > to nesting in PGtokenizer. +* Added fastpath support as a new package +* Added large object support as a new package +* Added ability of user code to handle custom storage types. +* Added new example testing the importing and exporting of a large object +* Added example application showing how to store and display images stored + as large objects +* Added example implementing part of psql client. This shows how to find out + what tables/columns are in a database (not yet complete) +* ResultSet.getBytes() now returns large object if field is an oid +* ResultSet.getString() now doesn't call getBytes() as this now would + cause an infinite loop because of large object support in getBytes() +* PreparedStatement.setBytes() now create a large object, and store its + oid into the column +* Reworked date style handling to make it easier to support new styles +* Added german and ISO styles, now all styles supported by postgresql + are now supported by the driver +* Fixed DatabaseMetaData.getTables() +* DatabaseMetaData.getTableTypes() returns our supported types. +* Fixed DatabaseMetaData.getColumns() + +These three are required for Borland's JBuilder to work. For now they +return an empty result, as I'm not sure yet on how to get the +required results. +* DatabaseMetaData.getBestRowIdentifier() +* DatabaseMetaData.getProcedureColumns() +* DatabaseMetaData.getIndexInfo() + +Finally, one change that is incompatible with earlier versions of the +driver. This change only affects any client code that uses the geometric +classes (eg: PGpoint) or the getObject()/setObject() methods. + +Because of a problem with javac, if user code includes the line: + +import postgresql.*; + +then javac will fail, saying that interfaces cannot be instanciated. + +To fix this, I've moved these classes into a new sub package, +postgresql.geometric and the PG_Object (renamed PGobject), and PGtokenizer +to postgresql.util.So the above line would become: + +import postgresql.geometric.*; + +Anyhow, I'm going to start writing some proper documentation for the +driver. For now, there is some available temporarily at: + + http://www.demon.co.uk/finder/postgres/jdbc/packages.html + |