|
|
|
|
@ -0,0 +1,287 @@
|
|
|
|
|
<Sect1>
|
|
|
|
|
<Title>Release 6.4</Title>
|
|
|
|
|
<!--
|
|
|
|
|
<docinfo>
|
|
|
|
|
<authorgroup>
|
|
|
|
|
<author>
|
|
|
|
|
<firstname>Bruce</firstname>
|
|
|
|
|
<surname>Momjian</surname>
|
|
|
|
|
</author>
|
|
|
|
|
</authorgroup>
|
|
|
|
|
<date>1998-10-30</date>
|
|
|
|
|
</docinfo>
|
|
|
|
|
-->
|
|
|
|
|
|
|
|
|
|
<para>
|
|
|
|
|
There are <emphasis>many</emphasis> new features and improvements in this release.
|
|
|
|
|
Thanks to our developers and maintainers, nearly every aspect of the system
|
|
|
|
|
has received some attention since the previous release.
|
|
|
|
|
Here is a brief, incomplete summary:
|
|
|
|
|
|
|
|
|
|
<itemizedlist spacing="compact">
|
|
|
|
|
<listitem>
|
|
|
|
|
<para>
|
|
|
|
|
Views and rules are now functional thanks to extensive new code in the
|
|
|
|
|
rewrite rules system from Jan Wieck. He also wrote a chapter on it
|
|
|
|
|
for the <citetitle>Programmer's Guide</citetitle>.
|
|
|
|
|
|
|
|
|
|
<listitem>
|
|
|
|
|
<para>
|
|
|
|
|
Jan also contributed a second procedural language, PL/pgSQL, to go with the
|
|
|
|
|
original PL/pgTCL procedural language he contributed last release.
|
|
|
|
|
|
|
|
|
|
<listitem>
|
|
|
|
|
<para>
|
|
|
|
|
We have optional multiple-byte character set support from Tatsuo Iishi
|
|
|
|
|
to complement our existing locale support.
|
|
|
|
|
|
|
|
|
|
<listitem>
|
|
|
|
|
<para>
|
|
|
|
|
Client/server communications has been cleaned up, with better support for
|
|
|
|
|
asynchronous messages and interrupts thanks to Tom Lane.
|
|
|
|
|
|
|
|
|
|
<listitem>
|
|
|
|
|
<para>
|
|
|
|
|
The parser will now perform automatic type coersion to match arguments
|
|
|
|
|
to available operators and functions, and to match columns and expressions
|
|
|
|
|
with target columns. This uses a generic mechanism which supports
|
|
|
|
|
the type extensibility features of <productname>Postgres</productname>.
|
|
|
|
|
There is a new chapter in the <citetitle>User's Guide</citetitle>
|
|
|
|
|
which covers this topic.
|
|
|
|
|
|
|
|
|
|
<listitem>
|
|
|
|
|
<para>
|
|
|
|
|
Three new data types have been added.
|
|
|
|
|
Two types, <type>inet</type> and <type>cidr</type>, support various forms
|
|
|
|
|
of IP network, subnet, and machine addressing. There is now an 8-byte integer
|
|
|
|
|
type available on some platforms. See the chapter on data types
|
|
|
|
|
in the <citetitle>User's Guide</citetitle> for details.
|
|
|
|
|
A fourth type, <type>serial</type>, is now supported by the parser as an
|
|
|
|
|
amalgam of the <type>int4</type> type, a sequence, and a unique index.
|
|
|
|
|
|
|
|
|
|
<listitem>
|
|
|
|
|
<para>
|
|
|
|
|
Several more <acronym>SQL92</acronym>-compatible syntax features have been
|
|
|
|
|
added, including <command>INSERT DEFAULT VALUES</command>
|
|
|
|
|
|
|
|
|
|
<listitem>
|
|
|
|
|
<para>
|
|
|
|
|
The automatic configuration and installation system has received some
|
|
|
|
|
attention, and should be more robust for more platforms than it has ever
|
|
|
|
|
been.
|
|
|
|
|
|
|
|
|
|
</itemizedlist>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<sect2>
|
|
|
|
|
<title>Migration to v6.4</title>
|
|
|
|
|
|
|
|
|
|
<para>
|
|
|
|
|
A dump/restore using <application>pg_dump</application>
|
|
|
|
|
or <application>pg_dumpall</application>
|
|
|
|
|
is required for those wishing to migrate data from any
|
|
|
|
|
previous release of <productname>Postgres</productname>.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<sect2>
|
|
|
|
|
<title>Detailed Change List</title>
|
|
|
|
|
|
|
|
|
|
<para>
|
|
|
|
|
<programlisting>
|
|
|
|
|
Bug Fixes
|
|
|
|
|
---------
|
|
|
|
|
Fix for a tiny memory leak in PQsetdb/PQfinish(Bryan)
|
|
|
|
|
Remove char2-16 data types, use char/varchar(Darren)
|
|
|
|
|
Pqfn not handles a NOTICE message(Anders)
|
|
|
|
|
Reduced busywaiting overhead for spinlocks with many backends (dg)
|
|
|
|
|
Stuck spinlock detection (dg)
|
|
|
|
|
Fix up "ISO-style" timespan decoding and encoding(Thomas)
|
|
|
|
|
Fix problem with table drop after rollback of transaction(Vadim)
|
|
|
|
|
Change error message and remove non-functional update message(Vadim)
|
|
|
|
|
Fix for COPY array checking
|
|
|
|
|
Fix for SELECT 1 UNION SELECT NULL
|
|
|
|
|
Fix for buffer leaks in large object calls(Pascal)
|
|
|
|
|
Change owner from oid to int4 type(Bruce)
|
|
|
|
|
Fix a bug in the oracle compatibility functions btrim() ltrim() and rtrim()
|
|
|
|
|
Fix for shared invalidation cache overflow(Massimo)
|
|
|
|
|
Prevent file descriptor leaks in failed COPY's(Bruce)
|
|
|
|
|
Fix memory leak in libpgtcl's pg_select(Constantin)
|
|
|
|
|
Fix problems with username/passwords over 8 characters(Tom)
|
|
|
|
|
Fix problems with handling of asynchronous NOTIFY in backend(Tom)
|
|
|
|
|
Fix of many bad system table entries(Tom)
|
|
|
|
|
|
|
|
|
|
Enhancements
|
|
|
|
|
------------
|
|
|
|
|
Upgrade ecpg and ecpglib,see src/interfaces/ecpc/ChangeLog(Michael)
|
|
|
|
|
Show the index used in an EXPLAIN(Zeugswetter)
|
|
|
|
|
EXPLAIN invokes rule system and shows plan(s) for rewritten queries(Jan)
|
|
|
|
|
Multi-byte awareness of many data types and functions, via configure(Tatsuo)
|
|
|
|
|
New configure --with-mb option(Tatsuo)
|
|
|
|
|
New initdb --pgencoding option(Tatsuo)
|
|
|
|
|
New createdb -E multibyte option(Tatsuo)
|
|
|
|
|
Select version(); now returns PostgreSQL version(Jeroen)
|
|
|
|
|
Libpq now allows asynchronous clients(Tom)
|
|
|
|
|
Allow cancel from client of backend query(Tom)
|
|
|
|
|
Psql now cancels query with Control-C(Tom)
|
|
|
|
|
Libpq users need not issue dummy queries to get NOTIFY messages(Tom)
|
|
|
|
|
NOTIFY now sends sender's PID, so you can tell whether it was your own(Tom)
|
|
|
|
|
PGresult struct now includes associated error message, if any(Tom)
|
|
|
|
|
Define "tz_hour" and "tz_minute" arguments to date_part()(Thomas)
|
|
|
|
|
Add routines to convert between varchar and bpchar(Thomas)
|
|
|
|
|
Add routines to allow sizing of varchar and bpchar into target columns(Thomas)
|
|
|
|
|
Add bit flags to support timezonehour and minute in data retrieval(Thomas)
|
|
|
|
|
Allow more variations on valid floating point numbers (e.g. ".1", "1e6")(Thomas)
|
|
|
|
|
Fixes for unary minus parsing with leading spaces(Thomas)
|
|
|
|
|
Implement TIMEZONE_HOUR, TIMEZONE_MINUTE per SQL92 specs(Thomas)
|
|
|
|
|
Check for and properly ignore FOREIGN KEY column constraints(Thomas)
|
|
|
|
|
Define USER as synonym for CURRENT_USER per SQL92 specs(Thomas)
|
|
|
|
|
Enable HAVING clause but no fixes elsewhere yet.
|
|
|
|
|
Make "char" type a synonym for "char(1)" (actually implemented as bpchar)(Thomas)
|
|
|
|
|
Save string type if specified for DEFAULT clause handling(Thomas)
|
|
|
|
|
Coerce operations involving different data types(Thomas)
|
|
|
|
|
Allow some index use for columns of different types(Thomas)
|
|
|
|
|
Add capabilities for automatic type conversion(Thomas)
|
|
|
|
|
Cleanups for large objects, so file is truncated on open(Peter)
|
|
|
|
|
Readline cleanups(Tom)
|
|
|
|
|
Allow psql \f \ to make spaces as delimiter(Bruce)
|
|
|
|
|
Pass pg_attribute.atttypmod to the frontend for column field lengths(Tom,Bruce)
|
|
|
|
|
Msql compatibility library in /contrib(Aldrin)
|
|
|
|
|
Remove the requirement that ORDER/GROUP BY clause identifiers be
|
|
|
|
|
included in the target list(David)
|
|
|
|
|
Convert columns to match columns in UNION clauses(Thomas)
|
|
|
|
|
Remove fork()/exec() and only do fork()(Bruce)
|
|
|
|
|
Jdbc cleanups(Peter)
|
|
|
|
|
Show backend status on ps command line(only works on some platforms)(Bruce)
|
|
|
|
|
Pg_hba.conf now has a sameuser option in the database field
|
|
|
|
|
Make lo_unlink take oid param, not int4
|
|
|
|
|
New DISABLE_COMPLEX_MACRO for compilers that can't handle our macros(Bruce)
|
|
|
|
|
Libpgtcl now handles NOTIFY as a Tcl event, need not send dummy queries(Tom)
|
|
|
|
|
libpgtcl cleanups(Tom)
|
|
|
|
|
Add -error option to libpgtcl's pg_result command(Tom)
|
|
|
|
|
New locale patch, see docs/README/locale(Oleg)
|
|
|
|
|
Fix for pg_dump so CONSTRAINT and CHECK syntax is correct(ccb)
|
|
|
|
|
New contrib/lo code for large object orphan removal(Peter)
|
|
|
|
|
New psql command "SET CLIENT_ENCODING TO 'encoding'" for multi-bytes
|
|
|
|
|
feature, see /doc/README.mb(Tatsuo)
|
|
|
|
|
/contrib/noupdate code to revoke update permission on a column
|
|
|
|
|
Libpq can now be compiled on win32(Magnus)
|
|
|
|
|
Add PQsetdbLogin() in libpq
|
|
|
|
|
New 8-byte integer type, checked by configure for OS support(Thomas)
|
|
|
|
|
Better support for quoted table/column names(Thomas)
|
|
|
|
|
Surround table and column names with double-quotes in pg_dump(Thomas)
|
|
|
|
|
PQreset() now works with passwords(Tom)
|
|
|
|
|
Handle case of GROUP BY target list column number out of range(David)
|
|
|
|
|
Allow UNION in subselects
|
|
|
|
|
Add auto-size to screen to \d? commands(Bruce)
|
|
|
|
|
Use UNION to show all \d? results in one query(Bruce)
|
|
|
|
|
Add \d? field search feature(Bruce)
|
|
|
|
|
Pg_dump issues fewer \connect requests(Tom)
|
|
|
|
|
Make pg_dump -z flag work better, document it in manual page(Tom)
|
|
|
|
|
Add HAVING clause with full support for subselects and unions(Stephan)
|
|
|
|
|
Full text indexing routines in contrib/fulltextindex(Maarten)
|
|
|
|
|
Transaction ids now stored in shared memory(Vadim)
|
|
|
|
|
New PGCLIENTENCODING when issuing COPY command(Tatsuo)
|
|
|
|
|
Support for SQL92 syntax "SET NAMES"(Tatsuo)
|
|
|
|
|
Support for LATIN2-5(Tatsuo)
|
|
|
|
|
Add UNICODE regression test case(Tatsuo)
|
|
|
|
|
Lock manager cleanup, new locking modes for LLL(Vadim)
|
|
|
|
|
Allow index use with OR clauses(Bruce)
|
|
|
|
|
Allows "SELECT NULL ORDER BY 1;"
|
|
|
|
|
Explain VERBOSE prints the plan, and now pretty-prints the plan to
|
|
|
|
|
the postmaster log file(Bruce)
|
|
|
|
|
Add Indices display to \d command(Bruce)
|
|
|
|
|
Allow GROUP BY on functions(David)
|
|
|
|
|
New pg_class.relkind for large objects(Bruce)
|
|
|
|
|
New way to send libpq NOTICE messages to a different location(Tom)
|
|
|
|
|
New \w write command to psql(Bruce)
|
|
|
|
|
New /contrib/findoidjoins scans oid columns to find join relationships(Bruce)
|
|
|
|
|
Allow binary-compatible indices to be considered when checking for valid
|
|
|
|
|
indices for restriction clauses containing a constant(Thomas)
|
|
|
|
|
New ISBN/ISSN code in /contrib/isbn_issn
|
|
|
|
|
Allow NOT LIKE, IN, NOT IN, BETWEEN, and NOT BETWEEN constraint(Thomas)
|
|
|
|
|
New rewrite system fixes many problems with rules and views(Jan)
|
|
|
|
|
* Rules on relations work
|
|
|
|
|
* Event qualifications on insert/update/delete work
|
|
|
|
|
* New OLD variable to reference CURRENT, CURRENT will be remove in future
|
|
|
|
|
* Update rules can reference NEW and OLD in rule qualifications/actions
|
|
|
|
|
* Insert/update/delete rules on views work
|
|
|
|
|
* Multiple rule actions are now supported, surrounded by parentheses
|
|
|
|
|
* Regular users can create views/rules on tables they have RULE permits
|
|
|
|
|
* Rules and views inherit the permissions on the creator
|
|
|
|
|
* No rules at the column level
|
|
|
|
|
* No UPDATE NEW/OLD rules
|
|
|
|
|
* New pg_tables, pg_indexes, pg_rules and pg_views system views
|
|
|
|
|
* Only a single action on SELECT rules
|
|
|
|
|
* Total rewrite overhaul, perhaps for 6.5
|
|
|
|
|
* handle subselects
|
|
|
|
|
* handle aggregates on views
|
|
|
|
|
* handle insert into select from view works
|
|
|
|
|
System indexes are now multi-key(Bruce)
|
|
|
|
|
Oidint2, oidint4, and oidname types are removed(Bruce)
|
|
|
|
|
Use system cache for more system table lookups(Bruce)
|
|
|
|
|
New backend programming language PL/pgSQL in backend/pl(Jan)
|
|
|
|
|
New SERIAL data type, auto-creates sequence/index(Thomas)
|
|
|
|
|
Enable assert checking without a recompile(Massimo)
|
|
|
|
|
User lock enhancements(Massimo)
|
|
|
|
|
New setval() command to set sequence value(Massimo)
|
|
|
|
|
Auto-remove unix socket file on startup if no postmaster running(Massimo)
|
|
|
|
|
Conditional trace package(Massimo)
|
|
|
|
|
New UNLISTEN command(Massimo)
|
|
|
|
|
Psql and libpq now compile under win32 using win32.mak(Magnus)
|
|
|
|
|
Lo_read no longer stores trailing NULL(Bruce)
|
|
|
|
|
Identifiers are now truncated to 31 characters internally(Bruce)
|
|
|
|
|
Createuser options now availble on the command line
|
|
|
|
|
Code for 64-bit integer supported added, configure tested, int8 type(Thomas)
|
|
|
|
|
Prevent file descriptor leaf from failed COPY(Bruce)
|
|
|
|
|
New pg_upgrade command(Bruce)
|
|
|
|
|
Updated /contrib directories(Massimo)
|
|
|
|
|
New CREATE TABLE DEFAULT VALUES statement available(Thomas)
|
|
|
|
|
New INSERT INTO TABLE DEFAULT VALUES statement available(Thomas)
|
|
|
|
|
New DECLARE and FETCH feature(Thomas)
|
|
|
|
|
libpq's internal structures now not exported(Tom)
|
|
|
|
|
Allow up to 8 key indexes(Bruce)
|
|
|
|
|
Remove ARCHIVE keyword, that is no longer used(Thomas)
|
|
|
|
|
pg_dump -n flag to supress quotes around indentifiers
|
|
|
|
|
disable system columns for views(Jan)
|
|
|
|
|
new INET and CIDR types for network addresses(TomH, Paul)
|
|
|
|
|
no more double quotes in psql output
|
|
|
|
|
pg_dump now dumps views(Terry)
|
|
|
|
|
new SET QUERY_LIMIT(Tatsuo,Jan)
|
|
|
|
|
|
|
|
|
|
Source Tree Changes
|
|
|
|
|
-------------------
|
|
|
|
|
/contrib cleanup(Jun)
|
|
|
|
|
Inline some small functions called for every row(Bruce)
|
|
|
|
|
Alpha/linux fixes
|
|
|
|
|
Hp/UX cleanups(Tom)
|
|
|
|
|
Multi-byte regression tests(Soonmyung.)
|
|
|
|
|
Remove --disabled options from configure
|
|
|
|
|
Define PGDOC to use POSTGRESDIR by default
|
|
|
|
|
Make regression optional
|
|
|
|
|
Remove extra braces code to pgindent(Bruce)
|
|
|
|
|
Add bsdi shared library support(Bruce)
|
|
|
|
|
New --without-CXX support configure option(Brook)
|
|
|
|
|
New FAQ_CVS
|
|
|
|
|
Update backend flowchart in tools/backend(Bruce)
|
|
|
|
|
Change atttypmod from int16 to int32(Bruce, Tom)
|
|
|
|
|
Getrusage() fix for platforms that do not have it(Tom)
|
|
|
|
|
Add PQconnectdb, PGUSER, PGPASSWORD to libpq man page
|
|
|
|
|
NS32K platform fixes(Phil Nelson, John Buller)
|
|
|
|
|
Sco 7/UnixWare 2.x fixes(Billy,others)
|
|
|
|
|
Sparc/Solaris 2.5 fixes(Ryan)
|
|
|
|
|
Pgbuiltin.3 is obsolete, move to doc files(Thomas)
|
|
|
|
|
Even more documention(Thomas)
|
|
|
|
|
Nextstep support(Jacek)
|
|
|
|
|
Aix support(David)
|
|
|
|
|
pginterface manual page(Bruce)
|
|
|
|
|
shared libraries all have version numbers
|
|
|
|
|
merged all OS-specific shared library defines into one file
|
|
|
|
|
smarter TCL/TK configuration checking(Billy)
|
|
|
|
|
smarter perl configuration(Brook)
|
|
|
|
|
configure uses supplied install-sh if no install script found(Tom)
|
|
|
|
|
new Makefile.shlib for shared library configuration(Tom)
|
|
|
|
|
</programlisting>
|
|
|
|
|
</Para>
|
|
|
|
|
|
|
|
|
|
</Sect1>
|
|
|
|
|
|
Thomas G. Lockhart