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single-byte encodings, and a direct C implementation of the single-argument
forms (where spaces are always what gets trimmed). This is in preparation
for using rtrim1() as the bpchar-to-text cast operator, but is a useful
performance improvement even if we decide not to do that.
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qualified when necessary, simplify argument-printing code.
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Ross Reedstrom, a couple months back) and to detect timezones that are
using leap-second timekeeping. The unknown-zone-name test is pretty
heuristic and ugly, but it seems better than the old behavior of just
switching to GMT given a bad name. Also make DecodePosixTimezone() a
tad more robust.
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Win32 port is now called 'win32' rather than 'win'
add -lwsock32 on Win32
make gethostname() be only used when kerberos4 is enabled
use /port/getopt.c
new /port/opendir.c routines
disable GUC unix_socket_group on Win32
convert some keywords.c symbols to KEYWORD_P to prevent conflict
create new FCNTL_NONBLOCK macro to turn off socket blocking
create new /include/port.h file that has /port prototypes, move
out of c.h
new /include/port/win32_include dir to hold missing include files
work around ERROR being defined in Win32 includes
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class when lc_collate is not C.
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only remnant of this failed experiment is that the server will take
SET AUTOCOMMIT TO ON. Still TODO: provide some client-side autocommit
logic in libpq.
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This makes no difference for existing uses, but allows SelectSortFunction()
and pred_test_simple_clause() to use indexscans instead of seqscans to
locate entries for a particular operator in pg_amop. Better yet, they can
use the SearchSysCacheList() API to cache the search results.
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but that was enough tedium for one day. Along the way, move the few
support routines for types xid and cid into a more logical place.
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the folly of not passing element type to typsend/typreceive, so fix that.
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so that COPY BINARY regression test passes.
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messages. Binary I/O is now up and working, but only for a small set
of datatypes (integers, text, bytea).
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testing purposes.
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yet, but they're there. Also some editorial work on CREATE TYPE reference
page.
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DestReceiver pointers instead of just CommandDest values. The DestReceiver
is made at the point where the destination is selected, rather than
deep inside the executor. This cleans up the original kluge implementation
of tstoreReceiver.c, and makes it easy to support retrieving results
from utility statements inside portals. Thus, you can now do fun things
like Bind and Execute a FETCH or EXPLAIN command, and it'll all work
as expected (e.g., you can Describe the portal, or use Execute's count
parameter to suspend the output partway through). Implementation involves
stuffing the utility command's output into a Tuplestore, which would be
kind of annoying for huge output sets, but should be quite acceptable
for typical uses of utility commands.
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Only lightly tested as yet, since libpq doesn't know anything about 'em.
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Per recent discussion on pgsql-general, this is appropriate for spec
compliance, and has the nice side-effect of easing porting from old
pg_dump files that exhibit the 59.999=>60.000 roundoff problem.
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Dump/read non-default GUC values for use by exec'ed backend, for Win32.
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Both plannable queries and utility commands are now always executed
within Portals, which have been revamped so that they can handle the
load (they used to be good only for single SELECT queries). Restructure
code to push command-completion-tag selection logic out of postgres.c,
so that it won't have to be duplicated between simple and extended queries.
initdb forced due to addition of a field to Query nodes.
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of extended query features in new FE/BE protocol. TransactionCommandContext
is gone (PortalContext replaces it for some purposes), and QueryContext
has taken on a new meaning (MessageContext plays its old role).
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context sloppiness, some other things. Includes Neil's mopup patch
of 22-Apr.
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schema that was in our search path.
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test in there...
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in all cases, leaked TopMemoryContext memory in others. Make the
interaction between SetClientEncoding and InitializeClientEncoding
cleaner and better documented. I suspect these changes should be
back-patched into 7.3, but will wait on Tatsuo's verification.
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as the correct user, not only query execution. Per report from Sean
Chittenden.
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initial values and runtime changes in selected parameters. This gets
rid of the need for an initial 'select pg_client_encoding()' query in
libpq, bringing us back to one message transmitted in each direction
for a standard connection startup. To allow server version to be sent
using the same GUC mechanism that handles other parameters, invent the
concept of a never-settable GUC parameter: you can 'show server_version'
but it's not settable by any GUC input source. Create 'lc_collate' and
'lc_ctype' never-settable parameters so that people can find out these
settings without need for pg_controldata. (These side ideas were all
discussed some time ago in pgsql-hackers, but not yet implemented.)
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rewritten and the protocol is changed, but most elog calls are still
elog calls. Also, we need to contemplate mechanisms for controlling
all this functionality --- eg, how much stuff should appear in the
postmaster log? And what API should libpq expose for it?
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have length words. COPY OUT reimplemented per new protocol: it doesn't
need \. anymore, thank goodness. COPY BINARY to/from frontend works,
at least as far as the backend is concerned --- libpq's PQgetline API
is not up to snuff, and will have to be replaced with something that is
null-safe. libpq uses message length words for performance improvement
(no cycles wasted rescanning long messages), but not yet for error
recovery.
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value, per recent discussion on pgsql-general.
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account for NULLs; in hindsight this is obvious since the code for
the MCV-lists case would reduce to this when there are zero entries
in both lists. Per example from Alec Mitchell.
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See following posting for more details.
Subject: Re: [HACKERS] [BUGS] Bug #943: Server-Encoding from EUC_TW to UTF-8 doesn't
From: Tatsuo Ishii <t-ishii@sra.co.jp>
To: michael.enke@wincor-nixdorf.com, pgsql-bugs@postgresql.org
Cc: pgsql-hackers@postgresql.org
Date: Sat, 12 Apr 2003 10:51:45 +0900 (JST)
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expressions, ARRAY(sub-SELECT) expressions, some array functions.
Polymorphic functions using ANYARRAY/ANYELEMENT argument and return
types. Some regression tests in place, documentation is lacking.
Joe Conway, with some kibitzing from Tom Lane.
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on UPDATE.
This get's rid of the long standing annoyance that updating a row
that has foreign keys locks all the referenced rows even if the
foreign key values do not change.
The trick is to actually do a check identical to NO ACTION after an
eventually done UPDATE in the SET DEFAULT case. Since a SET DEFAULT
operation should have moved referencing rows to a new "home", a following
NO ACTION check can only fail if the column defaults of the referencing
table resulted in the key we actually deleted. Thanks to Stephan.
Jan
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date2j(2000, 1, 1). Should make for some marginal speed improvement
in date/time operations.
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return type, make protection condition agree with recent change to
pg_stat_get_backend_activity, clean up documentation.
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find out about it is to read the documentation that tells you how
dangerous it is. Add default_transaction_read_only to documentation;
seems to have been overlooked in patch that added read-only transactions.
Clean up check_guc comparison script, which has been suffering bit rot.
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(ye good olde uninitialized-local-variable).
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page when it's read in, per pghackers discussion around 17-Feb. Add a
GUC variable zero_damaged_pages that causes the response to be a WARNING
followed by zeroing the page, rather than the normal ERROR; this is per
Hiroshi's suggestion that there needs to be a way to get at the data
in the rest of the table.
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