be able to do that, but the ability seems to have got lost in the
shuffle). Add a -o nextOID switch for completeness. Improve the
documentation to explain how and why to use these switches.
The error message said so :-)
In 25.3. Using PL/Python
If the trigger "when" is BEFORE, you may return None or "OK"
from the Python function to indicate the tuple is unmodified, "SKIP"
to abort the event, or "MODIFIED" to indicate you've modified the tuple.
should read
If the trigger "when" is BEFORE, you may return None or "OK"
from the Python function to indicate the tuple is unmodified, "SKIP"
to abort the event, or "MODIFY" to indicate you've modified the tuple.
elein
the SQL99 standard. (I'm not sure that the character-class features are
quite right, but that can be fixed later.) Document SQL99 and POSIX
regexps as being different features; provide variants of SUBSTRING for
each.
with OPAQUE. CREATE LANGUAGE, CREATE TRIGGER, and CREATE TYPE will all
accept references to functions declared with OPAQUE --- but they will
issue a NOTICE, and will modify the function entries in pg_proc to have
the preferred type-safe argument or result types instead of OPAQUE.
Per recent pghackers discussions.
to be flexible about assignment casts without introducing ambiguity in
operator/function resolution. Introduce a well-defined promotion hierarchy
for numeric datatypes (int2->int4->int8->numeric->float4->float8).
Change make_const to initially label numeric literals as int4, int8, or
numeric (never float8 anymore).
Explicitly mark Func and RelabelType nodes to indicate whether they came
from a function call, explicit cast, or implicit cast; use this to do
reverse-listing more accurately and without so many heuristics.
Explicit casts to char, varchar, bit, varbit will truncate or pad without
raising an error (the pre-7.2 behavior), while assigning to a column without
any explicit cast will still raise an error for wrong-length data like 7.3.
This more nearly follows the SQL spec than 7.2 behavior (we should be
reporting a 'completion condition' in the explicit-cast cases, but we have
no mechanism for that, so just do silent truncation).
Fix some problems with enforcement of typmod for array elements;
it didn't work at all in 'UPDATE ... SET array[n] = foo', for example.
Provide a generalized array_length_coerce() function to replace the
specialized per-array-type functions that used to be needed (and were
missing for NUMERIC as well as all the datetime types).
Add missing conversions int8<->float4, text<->numeric, oid<->int8.
initdb forced.
> Hannu Krosing wrote:
>
>> It seems that my last mail on this did not get through to the list
>> ;(
>>
>> Please consider renaming the new builtin function
>> split(text,text,int)
>>
>> to something else, perhaps
>>
>> split_part(text,text,int)
>>
>> (like date_part)
>>
>> The reason for this request is that 3 most popular scripting
>> languages (perl, python, php) all have also a function with similar
>> signature, but returning an array instead of single element and the
>> (optional) third argument is limit (maximum number of splits to
>> perform)
>>
>> I think that it would be good to have similar function in (some
>> future release of) postgres, but if we now let in a function with
>> same name and arguments but returning a single string instead an
>> array of them, then we will need to invent a new and not so easy to
>> recognise name for the "real" split function.
>>
>
> This is a good point, and I'm not opposed to changing the name, but
> it is too bad your original email didn't get through before beta1 was
> rolled. The change would now require an initdb, which I know we were
> trying to avoid once beta started (although we could change it
> without *requiring* an initdb I suppose).
>
> I guess if we do end up needing an initdb for other reasons, we
> should make this change too. Any other opinions? Is split_part an
> acceptable name?
>
> Also, if we add a todo to produce a "real" split function that
> returns an array, similar to those languages, I'll take it for 7.4.
No one commented on the choice of name, so the attached patch changes
the name of split(text,text,int) to split_part(text,text,int) per
Hannu's recommendation above. This can be applied without an initdb if
current beta testers are advised to run:
update pg_proc set proname = 'split_part' where proname = 'split';
in the case they want to use this function. Regression and doc fix is
also included in the patch.
Joe Conway
creation to world, but disallow temp table creation in template1. Per
latest round of pghackers discussion.
I did not force initdb, but the permissions lockdown on template1 will
not take effect unless you do one (or manually REVOKE TEMP ON DATABASE template1 FROM public).
Gerhard Hintermayer, revised and documented by Tom Lane.
This patch also fixes a 'must fix' bug: libpgtcl's LISTEN/NOTIFY
support was broken by the recent changes to the PGnotify structure.
Guess that change wasn't quite so safe as we thought.
< o -ALTER TABLE ALTER COLUMN SET/DROP NOT NULL (Christopher Kings-Lynne)
< o ALTER TABLE ADD COLUMN column SERIAL doesn't create sequence
> o -ALTER TABLE ALTER COLUMN SET/DROP NOT NULL (Christopher)
200a200,201
> o ALTER TABLE ADD COLUMN column SERIAL doesn't create sequence because
> of the item above
232c233
< o -Disallow missing columns in INSERT ... VALUES, per ANSI
> o -Disallow missing columns in INSERT ... (col) VALUES, per ANSI
335,336d335
< * Have SERIAL generate non-colliding sequence names when we have
< auto-destruction
< * Allow logging of query durations
> * -Allow logging of query durations
51,52d50
< * Make single-user local access permissions the default by limiting
< permissions on the socket file (Peter E)
72,73c70,71
< * Reserve last few process slots for super-user if max_connections reached
< * Add GUC parameter to print queries that generate errors
> * -Reserve last few process slots for super-user if max_connections reached
> * -Add GUC parameter to print queries that generate errors
82,83c80,81
< * Declare typein/out functions in pg_proc with a special "C string" data type
< * Functions returning sets do not totally work
> * -Declare typein/out functions in pg_proc with a special "C string" data type
> * -Functions returning sets do not totally work
90c88
< * Allow bytea to handle LIKE with non-TEXT patterns
> * -Allow bytea to handle LIKE with non-TEXT patterns
94c92
< o Store binary-compatible type information in the system
> o -Store binary-compatible type information in the system
97d94
< o -SELECT col FROM tab WHERE numeric_col = 10.1 fails, requires quotes
102c99
< o Ensure we have array-eq operators for every built-in array type
> o -Ensure we have array-eq operators for every built-in array type
119d115
< * Allow setting database character set without multibyte enabled
152d147
< * Have UPDATE/DELETE clean out indexes
198,199d192
< o ALTER TABLE ADD COLUMN to inherited table put column in wrong place
< [inheritance]
201d193
< o Add ALTER FUNCTION
203,204c195,196
< o -ALTER TABLE ADD PRIMARY KEY (Tom)
< o -ALTER TABLE ADD UNIQUE (Tom)
> o -ALTER TABLE ADD PRIMARY KEY (Christopher)
> o -ALTER TABLE ADD UNIQUE (Christopher)
248c240
< o -Remove SET KSQO option now that OR processing is improved (Tom)
> o -Remove SET KSQO option now that OR processing is improved (Bruce)
280c272
< * Have pg_dump use LEFT OUTER JOIN in multi-table SELECTs
> * -Have pg_dump use LEFT OUTER JOIN in multi-table SELECTs
287d278
< * Add config file check for $ODBCINI, $HOME/.odbc.ini, installpath/etc/odbc.ini
318,322d308
< * ODBC
< o ODBC 3.0 support
< o Unicode(UCS-2) support
< o Updatable cursors support
<
337c323
< * Fix foreign key constraints to not error on intermediate db states (Stephan)
> * -Fix foreign key constraints to not error on intermediate db states (Stephan)
352c338
< * Propagate column or table renaming to foreign key constraints
> * -Propagate column or table renaming to foreign key constraints
447c433
< * Remove wal_files postgresql.conf option because WAL files are now recycled
> * -Remove wal_files postgresql.conf option because WAL files are now recycled
460c446
< * Improve dynamic memory allocation by introducing tuple-context memory
> * -Improve dynamic memory allocation by introducing tuple-context memory
463c449
< * Nested FULL OUTER JOINs don't work (Tom)
> * -Nested FULL OUTER JOINs don't work (Tom)
> * -Add OR REPLACE clauses to non-FUNCTION object creation
> * -Allow autocommit so always in a transaction block
> * -Cache most recent query plan(s) (Neil) [prepare]
not synonymous with CHECK (xxx IS NOT NULL) -- for example, consider
ALTER TABLE ADD PRIMARY KEY, which checks for 'NOT NULL', not a check
constraint.
Neil Conway
already fixed by You. However there were a few left and attached patch
should fix the rest of them.
I used StringInfo only in 2 places and both of them are inside debug
ifdefs. Only performance penalty will come from using strlen() like all
the other code does.
I also modified some of the already patched parts by changing
snprintf(buf, 2 * BUFSIZE, ... style lines to
snprintf(buf, sizeof(buf), ... where buf is an array.
Jukka Holappa
(overlaying low byte of page size) and add HEAP_HASOID bit to t_infomask,
per earlier discussion. Simplify scheme for overlaying fields in tuple
header (no need for cmax to live in more than one place). Don't try to
clear infomask status bits in tqual.c --- not safe to do it there. Don't
try to force output table of a SELECT INTO to have OIDs, either. Get rid
of unnecessarily complex three-state scheme for TupleDesc.tdhasoids, which
has already caused one recent failure. Improve documentation.
available (else there's no way to interpret the list links). Change
pg_locks view to show transaction ID locks separately from ordinary
relation locks. Avoid showing N duplicate rows when the same lock is
held multiple times (seems unlikely that users care about exact hold
count). Improve documentation.
to false provides more SQL-spec-compliant behavior than we had before.
I am not sure that setting it false is actually a good idea yet; there
is a lot of client-side code that will probably be broken by turning
autocommit off. But it's a start.
Loosely based on a patch by David Van Wie.
column additions, deletions, and renames that would let a child table
get out of sync with its parent. Patch by Alvaro Herrera, with some
kibitzing by Tom Lane.
to the table function, thus preventing memory leakage accumulation across
calls. This means that SRFs need to be careful to distinguish permanent
and local storage; adjust code and documentation accordingly. Patch by
Joe Conway, very minor tweaks by Tom Lane.
bit on the indexes.
I also attach clusterdb and clusterdb.sgml; both of them are blatant
rips of vacuumdb and vacuumdb.sgml, but get the job done. Please review
them, as I'm probably making a lot of mistakes with SGML and I can't
compile it here.
vacuumdb itself is not very comfortable to use when the databases have
passwords, because it has to connect once for each table (I can probably
make it connect only once for each database; should I?). Because of
this I added a mention of PGPASSWORDFILE in the documentation, but I
don't know if that is the correct place for that.
Alvaro Herrera
value '-2' is used to indicate a variable-width type whose width is
computed as strlen(datum)+1. Everything that looks at typlen is updated
except for array support, which Joe Conway is working on; at the moment
it wouldn't work to try to create an array of cstring.
>>" It's also possible to select no escape character by writing ESCAPE ''.
>>In this case there is no way to turn off the special meaning of
>>underscore and percent signs in the pattern."
Joe Conway
with OPAQUE, as per recent pghackers discussion. I still want to do some
more work on the 'cstring' pseudo-type, but I'm going to commit the bulk
of the changes now before the tree starts shifting under me ...
FOUND is set whenever a SELECT INTO returns > 0 rows, *or* when an
INSERT, UPDATE, or DELETE affects > 0 rows. We implemented the first
part of this behavior, but not the second.
I also improved the documentation on the various situations in which
FOUND can be set (excluding inside FOR loops, which I still need to
think about), and added some regression tests for this behavior.
Neil Conway
> Quick system function to pull out the current database.
>
> I've used this a number of times to allow stored procedures to find out
> where they are. Especially useful for those that do logging or hit a
> remote server.
>
> It's called current_database() to match with current_user().
It's also a necessity for an informational schema. The catalog
(database) name is required in a number of places.
Rod Taylor
The -n and -N options were removed. Quoting is now smart enough to
supply quotes if and only if necessary.
Numerical types are now printed without quotes, except in cases of
special values such as NaN.
Boolean values printed as true and false.
Most string literals now do not escape whitespace characters (newlines,
etc.) for portability.
SET SESSION AUTHORIZATION argument is a string literal, to follow SQL.
Made commands output by pg_dump use consistent spacing and indentation.
This patch is an updated version of the lock listing patch. I've made
the following changes:
- write documentation
- wrap the SRF in a view called 'pg_locks': all user-level
access should be done through this view
- re-diff against latest CVS
One thing I chose not to do is adapt the SRF to use the anonymous
composite type code from Joe Conway. I'll probably do that eventually,
but I'm not really convinced it's a significantly cleaner way to
bootstrap SRF builtins than the method this patch uses (of course, it
has other uses...)
Neil Conway
