Peter Eisentraut [Mon, 21 May 2001 16:54:46 +0000 (16:54 +0000)]
Make char(n) and varchar(n) types raise an error if the inserted string is
too long. While I was adjusting the regression tests I moved the array
things all into array.sql, to make things more manageable.
Jan Wieck [Mon, 21 May 2001 14:22:19 +0000 (14:22 +0000)]
Enhancement of SPI to get access to portals
- New functions to create a portal using a prepared/saved
SPI plan or lookup an existing portal by name.
- Functions to fetch/move from/in portals. Results are placed
in the usual SPI_processed and SPI_tuptable, so the entire
set of utility functions can be used to gain attribute access.
- Prepared/saved SPI plans now use their own memory context
and SPI_freeplan(plan) can remove them.
- Tuple result sets (SPI_tuptable) now uses it's own memory
context and can be free'd by SPI_freetuptable(tuptab).
Enhancement of PL/pgSQL
- Uses generic named portals internally in FOR ... SELECT
loops to avoid running out of memory on huge result sets.
- Support for CURSOR and REFCURSOR syntax using the new SPI
functionality. Cursors used internally only need no explicit
transaction block. Refcursor variables can be used inside
of explicit transaction block to pass cursors between main
application and functions.
Tom Lane [Sun, 20 May 2001 20:28:20 +0000 (20:28 +0000)]
Modify optimizer data structures so that IndexOptInfo lists built for
create_index_paths are not immediately discarded, but are available for
subsequent planner work. This allows avoiding redundant syscache lookups
in several places. Change interface to operator selectivity estimation
procedures to allow faster and more flexible estimation.
Initdb forced due to change of pg_proc entries for selectivity functions!
Peter Eisentraut [Sat, 19 May 2001 09:01:10 +0000 (09:01 +0000)]
Allow special '$libdir' macro to show up in object file path in CREATE
FUNCTION command. Guard against trying to load a directory. Update
documentation some.
Bruce Momjian [Sat, 19 May 2001 00:33:20 +0000 (00:33 +0000)]
New comment. This func/column things has always confused me.
/*
* parse function
* This code is confusing because the database can accept
* relation.column, column.function, or relation.column.function.
* In these cases, funcname is the last parameter, and fargs are
* the rest.
*
* It can also be called as func(col) or func(col,col).
* In this case, Funcname is the part before parens, and fargs
* are the part in parens.
*
*/
Node *
ParseFuncOrColumn(ParseState *pstate, char *funcname, List *fargs,
bool agg_star, bool agg_distinct,
int precedence)
Tom Lane [Fri, 18 May 2001 16:02:01 +0000 (16:02 +0000)]
Add regression test to catch future breakage of avg(interval). This
aggregate seems uniquely fragile, because it's the only one with an
agginitval that's at all likely to change in format.
Peter Eisentraut [Thu, 17 May 2001 21:12:49 +0000 (21:12 +0000)]
Add -U and -W options to pg_dump and friends to support non-interactive
specification of username (like in psql). pg_dumpall now works with
password authentication.
Bruce Momjian [Thu, 17 May 2001 04:10:02 +0000 (04:10 +0000)]
Included is a patch that fixes a bug introduced in the lastest version
(1.22) of interfaces/jdbc/org/postgresql/jdbc2/ResultSet.java. That
change removed a line that set the variable s to the value of the
stringbuffer. This fix changes the following if checks to check the
length of the stringbuffer instead of s, since s no longer contains the
string the if conditions are expecting.
The bug manifests itself in getTimestamp() loosing the timezone
information of timestamps selected from the database, thereby causing
the time to be incorrect.
Bruce Momjian [Thu, 17 May 2001 03:55:04 +0000 (03:55 +0000)]
Cleanup of backpatch of jdbc2 improvements to jdbc1:
Here's what I came up with. The biggest difference api between JDK1.x and
later versions is the support for collections. The problem was with the
Vector class; in jdk1.x there is no method called add, so I changed the
calls to addElement. Also no addAll, so I rewrote the method slightly to not
require addAll. While reviewing this I notices some System.out.println
statements that weren't commented out. So I commented them out in both
versions.
The upshot of all of this is that I have clean compile, but no idea if the
code works ;(
Tom Lane [Thu, 17 May 2001 01:28:50 +0000 (01:28 +0000)]
Replace poorly-coded vac_find_eq routine with call to standard bsearch
library code. Tweak progress messages to include elapsed real time,
not only CPU time.
Tom Lane [Wed, 16 May 2001 22:35:12 +0000 (22:35 +0000)]
Repair race condition introduced into heap_update() in 7.1 ---
PageGetFreeSpace() was being called while not holding the buffer lock, which
not only could yield a garbage answer, but even if it's the right answer there
might be less space available after we reacquire the buffer lock.
Also repair potential deadlock introduced by my recent performance improvement
in RelationGetBufferForTuple(): it was possible for two heap_updates to try to
lock two buffers in opposite orders. The fix creates a global rule that
buffers of a single heap relation should be locked in decreasing block number
order. Currently, this only applies to heap_update; VACUUM can get away with
ignoring the rule since it holds exclusive lock on the whole relation anyway.
However, if we try to implement a VACUUM that can run in parallel with other
transactions, VACUUM will also have to obey the lock order rule.
Bruce Momjian [Wed, 16 May 2001 17:24:10 +0000 (17:24 +0000)]
The configure.in file erraneous assumes that FreeBSD 1.x and 2.x have
ELF capability.
While this is true to some extent, this assumption makes it impossible
to compile PostgreSQL 7.1 and 7.2devel without the --disable-shared
switch during configuration.
Bruce Momjian [Wed, 16 May 2001 16:42:31 +0000 (16:42 +0000)]
I was trying to get a very nice FREE graphical db tool called DbVisualizer
(http://www.ideit.com/products/dbvis/) to work with Postgresql and I found
out the following bug: if database has views then getTables() gets the null
pointer exception ('order by relname' makes the listing tree in
DbVisualizer a lot useful !!)
This patch should propably be applied to the the jdbc1's
DatabaseMetaData.java, too.
Bruce Momjian [Wed, 16 May 2001 03:29:01 +0000 (03:29 +0000)]
The current implementation of BlobInputStream does
not properly handle 8-bit unsigned data as it blindly
casts the byte to an int, which java most helpfully
promotes to a signed type. This causes problems when
you can only return -1 to indicated EOF.
The following patch fixes the bug and has been tested
locally on image data.
Tom Lane [Tue, 15 May 2001 16:11:58 +0000 (16:11 +0000)]
Remove unnecessary EvalPlanQual support code --- since this plan node
type never scans a relation directly, it can't be an EPQ target.
Explicitly drop subplan's tuple table to ensure we have no buffer pin
leaks.
Bruce Momjian [Tue, 15 May 2001 14:14:49 +0000 (14:14 +0000)]
we found a problem in GiST with massive insert/update operations
with many NULLs ( inserting of NULL into indexed field cause
ERROR: MemoryContextAlloc: invalid request size)
As a workaround 'vacuum analyze' could be used.
This patch resolves the problem, please upply to 7.1.1 sources and
current cvs tree.
Tom Lane [Tue, 15 May 2001 00:33:36 +0000 (00:33 +0000)]
EvalPlanQual was thoroughly broken for concurrent update/delete on inheritance
trees (mostly my fault). Repair. Also fix long-standing bug in ExecReplace:
after recomputing a concurrently updated tuple, we must recheck constraints.
Make EvalPlanQual leak memory with somewhat less enthusiasm than before,
although plugging leaks fully will require more changes than I care to risk
in a dot-release.
Tom Lane [Mon, 14 May 2001 20:25:00 +0000 (20:25 +0000)]
Current implementation of FOR UPDATE has no hope of working correctly
for relations on the nullable side of an OUTER JOIN. For now I think
we'd better refuse such queries.
Bruce Momjian [Sun, 13 May 2001 02:17:09 +0000 (02:17 +0000)]
> I've been experimenting with pgcrypto 0.3 (distributed with
> Postgres 7.1.0), and I think I've found a bug.
>
> I compiled Pgcrypto with OpenSSL, using gcc 2.95.4 and
> OpenSSL 0.9.6a (the latest Debian 'unstable' packages).
> web=> select encode(digest('blah', 'sha1'), 'base64');
> FATAL 1: pg_encode: overflow, encode estimate too small
> pqReadData() -- backend closed the channel unexpectedly.
> This probably means the backend terminated abnormally
> before or while processing the request.
> The connection to the server was lost. Attempting reset: Succeeded.
Tom Lane [Sat, 12 May 2001 23:36:03 +0000 (23:36 +0000)]
proisstrict must be assumed FALSE when dumping from a 7.0 database,
not TRUE. Otherwise we break pl call handler functions. fmgr_oldstyle
will take care of making sure the semantics are the same for C functions.
Clean up some slightly grotty coding in 7.0 pg_class reading, also.
Tom Lane [Sat, 12 May 2001 19:58:28 +0000 (19:58 +0000)]
Modify RelationGetBufferForTuple() so that we only do lseek and lock
when we need to move to a new page; as long as we can insert the new
tuple on the same page as before, we only need LockBuffer and not the
expensive stuff. Also, twiddle bufmgr interfaces to avoid redundant
lseeks in RelationGetBufferForTuple and BufferAlloc. Successive inserts
now require one lseek per page added, rather than one per tuple with
several additional ones at each page boundary as happened before.
Lock contention when multiple backends are inserting in same table
is also greatly reduced.
Peter Eisentraut [Sat, 12 May 2001 17:49:32 +0000 (17:49 +0000)]
PL/Python should build portably now, if you can get over the fact that
there's no shared libpython. Test suite works as well. Also, add some
documentation.
Peter Eisentraut [Sat, 12 May 2001 01:30:30 +0000 (01:30 +0000)]
PL/Python integration: support in create/droplang, add CVS keywords,
remove useless files, beat some sense into Makefile. For me it builds
and sort of runs, so it's a start.
Philip Warner [Sat, 12 May 2001 01:03:59 +0000 (01:03 +0000)]
- Don't dump COMMENTs in data-only dumps
- Fix view dumping SQL for V7.0
- Fix bug when getting view oid with long view names
- Treat SEQUENCE SET TOC entries as data entries rather than schema
entries.
- Make allowance for data entries that did not have a data dumper
routine (eg. SEQUENCE SET)
Tom Lane [Fri, 11 May 2001 05:09:03 +0000 (05:09 +0000)]
Suppress failures in parallel regress tests due to use of same table
name in two different tests. This solution does not meet with universal
approval, so it may get changed later ...
Bruce Momjian [Fri, 11 May 2001 01:46:33 +0000 (01:46 +0000)]
Stamp CVS as 7.2. Update all interface version numbers. This is the
time to do it, not during beta because people are using this stuff in
production sometimes.