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columns, to allow more correct behavior in multiple-inheritance cases.
Patch by Alvaro Herrera, review by Tom Lane.
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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.
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parse analysis and into the execution code (in tablecmds.c). This
eliminates a lot of unreasonably complex code that needed to have two
or more execution paths in case it was dealing with a not-yet-created
table column vs. an already-existing one. The execution code is always
dealing with already-created tables and so needs only one case. This
also eliminates some potential race conditions (the table wasn't locked
between parse analysis and execution), makes it easy to fix the gripe
about wrong referenced-column names generating a misleading error message,
and lets us easily add a dependency from the foreign-key constraint to
the unique index that it requires the referenced table to have. (Cf.
complaint from Kris Jurka 12-Sep-2002 on pgsql-bugs.)
Also, third try at building a deletion mechanism that is not sensitive
to the order in which pg_depend entries are visited. Adding the above-
mentioned dependency exposed the folly of what dependency.c had been
doing: it failed for cases where B depends on C while both auto-depend
on A. Dropping A should succeed in this case, but was failing if C
happened to be visited before B. It appears the only solution is two
separate walks over the dependency tree.
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-ffast-math.
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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.
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Need 'isync' during TAS and 'sync' during S_UNLOCK.
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avoid O(N^2) behavior. Problem noted and fixed by Stephen Marshall <smarshall@wsicorp.com>,
with some help from Tom Lane.
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when default expression for a domain is being used. Avoid repetitive
catalog lookups.
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* to_char(0,'FM999.99') returns a period, to_char(1,'FM999.99') does not
Karel Zak
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> I see in your recent bytea-LIKE patch
>
> if (datatype != BYTEAOID && pg_database_encoding_max_length()
> 1)
> len = pg_mbcliplen((const unsigned char *) workstr, len,
len - 1);
> else
> len -= -1;
>
> Surely there's one too many minus signs in that last?
Joe Conway
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fixes a few minor bugs (typos, potential buffer overruns, etc.), and
fixes some spelling/grammar mistakes.
Neil Conway
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Neil Conway
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Also:
- Changed header file order (alphabetical)
- Changed to m = attnum - 1 in binary copy code for consistency
Rod Taylor
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> moment, but they used to be used; I think the correct response is to
> put back the missing counter increments, not rip out the counters.
Ok, fair enough. It's worth noting that they've been broken for a
while -- for example, the HashJoin counter increments were broken when
you comitted r1.20 of executor/nodeHashJoin.c in May of '99.
I've attached a revised patch that doesn't remove the counters (but
doesn't increment them either: I'm not sure of all the places where
the counter should be incremented).
Neil Conway
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composite types. Add a couple more lsyscache.c routines to support this,
and make use of them in some other places that were doing lookups the
hard way.
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ruleutils display is not such a great idea. For arguments of functions
and operators I think we'd better keep the historical behavior of showing
such casts explicitly, to ensure that the function/operator is reparsed
the same way when the rule is reloaded. This also makes the output of
EXPLAIN less obscurantist about exactly what's happening.
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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.
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conversion function interface.
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(notify/SI-overrun interrupt) while it is in process of doing proc_exit,
it is possible for Async_NotifyHandler() to try to start a transaction
when one is already running. This leads to Asserts() or worse. I think
it may only be possible to occur when frontend synchronization is lost
(ie, the elog(FATAL) in SocketBackend() fires), but that is a standard
occurrence after error during COPY. In any case, I have seen this
failure occur during regression tests, so it is definitely possible.
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Kenji Sugita.
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inline documentation to the main docs.
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and fixed a bug found by the regression test
Modified Files:
jdbc/org/postgresql/jdbc1/AbstractJdbc1Statement.java
jdbc/org/postgresql/test/jdbc2/Jdbc2TestSuite.java
Added Files:
jdbc/org/postgresql/test/jdbc2/ServerPreparedStmtTest.java
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Change PG_RETURN_INT32(0) to PG_RETURN_VOID()
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don't assume relname field of a relcache entry will stay valid across
lots of operations.
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doesn't match any known variable.
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fmgr.h - it's discouraged to access fcinfo directly but there is no
macro to get the number of arguments passed to the function. Checking
the number of arguments is often useful when you have a function which
can be called like:
func('arg');
func(null);
func();
all mapping to the same C function.
the macro has a function-like appearance to match the other PG_*
macros.
Lee Kindness.
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>
>>::sigh:: Is it me or does it look like all
>>of pl/pgsql is schema un-aware (ie, all of the declarations). -sc
>
>
> Yeah. The group of routines parse_word, parse_dblword, etc that are
> called by the lexer certainly all need work. There are some
> definitional issues to think about, too --- plpgsql presently relies on
> the number of names to give it some idea of what to look for, and those
> rules are probably all toast now. Please come up with a sketch of what
> you think the behavior should be before you start hacking code.
Attached is a diff -c format proposal to fix this. I've also attached a short
test script. Seems to work OK and passes all regression tests.
Here's a breakdown of how I understand plpgsql's "Special word rules" -- I
think it illustrates the behavior reasonably well. New functions added by this
patch are plpgsql_parse_tripwordtype and plpgsql_parse_dblwordrowtype:
Joe Conway
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> 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
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> where more than one schema is in use, because it doesn't trouble to
> schema-qualify table names.
Ok, the following patch should solve this concern. It also tries to
connect as little times as possible (the previous one would connect one
time per table plus one per database; this one connects two times per
database).
Alvaro Herrera
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that are explicitly JOINed are not considered dependencies unless they
are actually used in the query: mere presence in the joinaliasvars
list of a JOIN RTE doesn't count as being used. The patch touches
a number of files because I needed to generalize the API of
query_tree_walker to support an additional flag bit, but the changes
are otherwise quite small.
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- Properly drop tables in jdbc regression tests with cascade for 7.3
- problem with Statement.execute() and executeUpdate() not clearing binds
- problem with ResultSet not correctly handling default encoding
- changes to correctly support show transaction isolation level in 7.3
- changed DatabaseMetaDataTest to handle differences in FK names in 7.3
- better fix for dynamically checking server NAME data length
(With the fixes above the jdbc regression tests pass on jdbc2 and jdbc3
against both a 7.2 and 7.3 server)
Patchs submitted by David Wall (d.wall@computer.org):
- problem with getBlob when largeobject oid is null
- improvements to BlobOutputStream
Patch submitted by Haris Peco (snpe@snpe.co.yu):
- problem with callable statement not supporting prepared statement methods
Modified Files:
jdbc/org/postgresql/Driver.java.in
jdbc/org/postgresql/jdbc1/AbstractJdbc1Connection.java
jdbc/org/postgresql/jdbc1/AbstractJdbc1DatabaseMetaData.java
jdbc/org/postgresql/jdbc1/AbstractJdbc1Statement.java
jdbc/org/postgresql/jdbc2/AbstractJdbc2ResultSet.java
jdbc/org/postgresql/jdbc2/AbstractJdbc2Statement.java
jdbc/org/postgresql/jdbc2/Jdbc2ResultSet.java
jdbc/org/postgresql/jdbc3/Jdbc3ResultSet.java
jdbc/org/postgresql/largeobject/BlobOutputStream.java
jdbc/org/postgresql/largeobject/LargeObject.java
jdbc/org/postgresql/test/TestUtil.java
jdbc/org/postgresql/test/jdbc2/DatabaseMetaDataTest.java
jdbc/org/postgresql/test/jdbc2/UpdateableResultTest.java
jdbc/org/postgresql/test/jdbc2/optional/BaseDataSourceTest.java
jdbc/org/postgresql/test/jdbc2/optional/ConnectionPoolTest.java
jdbc/org/postgresql/test/jdbc2/optional/SimpleDataSourceTest.java
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Fixed Statement to correctly DEALLOCATE any prepared statements
Modified Files:
jdbc/org/postgresql/PGStatement.java
jdbc/org/postgresql/jdbc1/AbstractJdbc1DatabaseMetaData.java
jdbc/org/postgresql/jdbc1/AbstractJdbc1Statement.java
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NAMEDATALEN of 64.
Kris Jurka
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