Commit Graph

4121 Commits

Author SHA1 Message Date
Bruce Momjian
58c909bb8d OK -- here's take #5.
It "make"s and "make check"s clean against current cvs tip.

There are now both Text and Name variants, and the regression test support
is rolled into the patch. Note that to be complete wrt Name based variants,
there are now 12 user visible versions of has_table_privilege:

has_table_privilege(Text usename, Text relname, Text priv_type)
has_table_privilege(Text usename, Name relname, Text priv_type)
has_table_privilege(Name usename, Text relname, Text priv_type)
has_table_privilege(Name usename, Name relname, Text priv_type)
has_table_privilege(Text relname, Text priv_type) /* assumes current_user */
has_table_privilege(Name relname, Text priv_type) /* assumes current_user */
has_table_privilege(Text usename, Oid reloid, Text priv_type)
has_table_privilege(Name usename, Oid reloid, Text priv_type)
has_table_privilege(Oid reloid, Text priv_type)  /* assumes current_user */
has_table_privilege(Oid usesysid, Text relname, Text priv_type)
has_table_privilege(Oid usesysid, Name relname, Text priv_type)
has_table_privilege(Oid usesysid, Oid reloid, Text priv_type)

For the Text based inputs, a new internal function, get_Name is used
(shamelessly copied from get_seq_name in sequence.c) to downcase if not
quoted, or remove quotes if quoted, and truncate. I also added a few test
cases for the downcasing, quote removal, and Name based variants to the
regression test.

Joe Conway
2001-06-12 15:58:34 +00:00
Tom Lane
1d584f97b9 Clean up various to-do items associated with system indexes:
pg_database now has unique indexes on oid and on datname.
pg_shadow now has unique indexes on usename and on usesysid.
pg_am now has unique index on oid.
pg_opclass now has unique index on oid.
pg_amproc now has unique index on amid+amopclaid+amprocnum.
Remove pg_rewrite's unnecessary index on oid, delete unused RULEOID syscache.
Remove index on pg_listener and associated syscache for performance reasons
(caching rows that are certain to change before you need 'em again is
rather pointless).
Change pg_attrdef's nonunique index on adrelid into a unique index on
adrelid+adnum.

Fix various incorrect settings of pg_class.relisshared, make that the
primary reference point for whether a relation is shared or not.
IsSharedSystemRelationName() is now only consulted to initialize relisshared
during initial creation of tables and indexes.  In theory we might now
support shared user relations, though it's not clear how one would get
entries for them into pg_class &etc of multiple databases.

Fix recently reported bug that pg_attribute rows created for an index all have
the same OID.  (Proof that non-unique OID doesn't matter unless it's
actually used to do lookups ;-))

There's no need to treat pg_trigger, pg_attrdef, pg_relcheck as bootstrap
relations.  Convert them into plain system catalogs without hardwired
entries in pg_class and friends.

Unify global.bki and template1.bki into a single init script postgres.bki,
since the alleged distinction between them was misleading and pointless.
Not to mention that it didn't work for setting up indexes on shared
system relations.

Rationalize locking of pg_shadow, pg_group, pg_attrdef (no need to use
AccessExclusiveLock where ExclusiveLock or even RowExclusiveLock will do).
Also, hold locks until transaction commit where necessary.
2001-06-12 05:55:50 +00:00
Tom Lane
88e948216c Nest macros with slightly less enthusiasm, for performance and to avoid
having non-gcc compilers spit up.
2001-06-11 05:00:56 +00:00
Tom Lane
2a6f7ac456 Move temporary files into 'pg_tempfiles' subdirectory of each database
directory (which can be made a symlink to put temp files on another disk).
Add code to delete leftover temp files during postmaster startup.
Bruce, with some kibitzing from Tom.
2001-06-11 04:12:29 +00:00
Tom Lane
01a819abe3 Make planner compute the number of hash buckets the same way that
nodeHash.c will compute it (by sharing code).
2001-06-11 00:17:08 +00:00
Tom Lane
a8fe109ac1 Fix thinko in hash cost estimation: average frequency
should be computed from total number of distinct values in whole
relation, not # distinct values we expect to have after restriction
clauses are applied.
2001-06-10 02:59:35 +00:00
Peter Eisentraut
7ceed2a9b5 Allow GRANT/REVOKE to/from more than one user per invocation. Command tag
for GRANT/REVOKE is now just that, not "CHANGE".

On the way, migrate some of the aclitem internal representation away from
the parser and build a real parse tree instead.  Also add some 'const'
qualifiers.
2001-06-09 23:21:55 +00:00
Tom Lane
202548d6cc Teach convert_to_scalar about datatypes timetz, inet, cidr, macaddr. 2001-06-09 22:16:18 +00:00
Tom Lane
bdadc9bf1c Remove RelationGetBufferWithBuffer(), which is horribly confused about
appropriate pin-count manipulation, and instead use ReleaseAndReadBuffer.
Make use of the fact that the passed-in buffer (if there is one) must
be pinned to avoid grabbing the bufmgr spinlock when we are able to
return this same buffer.  Eliminate unnecessary 'previous tuple' and
'next tuple' fields of HeapScanDesc and IndexScanDesc, thereby removing
a whole lot of bookkeeping from heap_getnext() and related routines.
2001-06-09 18:16:59 +00:00
Peter Eisentraut
959dc927d3 Preliminary code cleanup in elog(). Split out some code into utility
functions, remove indent support, make sure all strings are marked
translatable.
2001-06-08 21:16:49 +00:00
Bruce Momjian
4ee76ad884 reset all: command line and .conf options change defaults
on RESET ALL those are restored.

show all: GUC + non-GUC.

SHOW ALL, RESET ALL

Marko Kreen
2001-06-07 04:50:57 +00:00
Bruce Momjian
ba17165f55 This adds unary plus capability. No grammar changes, per Tom's request.
Marko Kreen
2001-06-07 00:09:32 +00:00
Tom Lane
a6697b3614 get_seq_name should truncate name to NAMEDATALEN, so that this works:
create sequence a1234567890123456789012345678901234567890;
select nextval('a1234567890123456789012345678901234567890');
2001-06-06 22:03:48 +00:00
Tom Lane
b67fc0079c Be a little smarter about deciding how many most-common values to save. 2001-06-06 21:29:17 +00:00
Tom Lane
1173344e74 Adjust WAL code so that checkpoints truncate the xlog at the previous
checkpoint's redo pointer, not its undo pointer, per discussion in
pghackers a few days ago.  No point in hanging onto undo information
until we have the ability to do something with it --- and this solves
a rather large problem with log space for long-running transactions.
Also, change all calls of write() to detect the case where write
returned a count less than requested, but failed to set errno.
Presume that this situation indicates ENOSPC, and give the appropriate
error message, rather than a random message associated with the previous
value of errno.
2001-06-06 17:07:46 +00:00
Tom Lane
fb97d2b6bf Correct permissions-checking bugs associated with ancient decision to
copy PUBLIC access rights into each newly created ACL entry.  Instead
treat each ACL entry as independent flags.  Also clean up some ugliness
in acl.h API.
2001-06-05 19:34:56 +00:00
Tom Lane
cdd230d628 Improve planning of OR indexscan plans: for quals like
WHERE (a = 1 or a = 2) and b = 42
and an index on (a,b), include the clause b = 42 in the indexquals
generated for each arm of the OR clause.  Essentially this is an index-
driven conversion from CNF to DNF.  Implementation is a bit klugy, but
better than not exploiting the extra quals at all ...
2001-06-05 17:13:52 +00:00
Tom Lane
7c579fa12d Further work on making use of new statistics in planner. Adjust APIs
of costsize.c routines to pass Query root, so that costsize can figure
more things out by itself and not be so dependent on its callers to tell
it everything it needs to know.  Use selectivity of hash or merge clause
to estimate number of tuples processed internally in these joins
(this is more useful than it would've been before, since eqjoinsel is
somewhat more accurate than before).
2001-06-05 05:26:05 +00:00
Bruce Momjian
28d2420eef This patch adds support for %TYPE in CREATE FUNCTION argument and return
types.  This version has an elog() to remind the user the type
resolution is not dynamic.

Ian Lance Taylor
2001-06-04 23:27:23 +00:00
Tom Lane
eeaa497e7b Give error message, rather than coredump, for utility statements in
conditional rules (rules with WHERE clauses).  We cannot support these
since there's noplace to hang a condition on a utility statement.
We caught the other case (attempt to attach a condition at rewrite time)
awhile ago, but this one escaped notice until now.
2001-06-04 16:17:30 +00:00
Peter Eisentraut
12c1552066 Mark many strings in backend not covered by elog for translation. Also,
make strings in xlog.c look more like English and less like binary noise.
2001-06-03 14:53:56 +00:00
Tom Lane
277a47ad0f Accept and output '-Infinity' as well as 'Infinity', per long-ago
suggestion from Ross Reedstrom.  Still needs work to make those symbols
convert to actual IEEE infinities (on machines where such things exist).
2001-06-02 20:18:30 +00:00
Tom Lane
5433b48380 Tweak sorting so that nulls appear at the front of a descending sort
(vs. at the end of a normal sort).  This ensures that explicit sorts
yield the same ordering as a btree index scan.  To be really sure that
that equivalence holds, we use the btree entries in pg_amop to decide
whether we are looking at a '<' or '>' operator.  For a sort operator
that has no btree association, we put the nulls at the front if the
operator is named '>' ... pretty grotty, but it does the right thing in
simple ASC and DESC cases, and at least there's no possibility of getting
a different answer depending on the plan type chosen.
2001-06-02 19:01:53 +00:00
Peter Eisentraut
e542036461 Native Language Support (NLS)
Use --enable-nls to turn it on; see installation instructions for details.
See developer's guide how to make use of it in programs and how to add
translations.

psql sources have been almost fully prepared and an incomplete German
translation has been provided.  In the backend, only elog() calls are
currently translatable, and the provided German translation file is more
of a placeholder.
2001-06-02 18:25:18 +00:00
Tom Lane
58193c5f37 Paranoia about unordered comparisons in IEEE float math. If we are
given values that compare as unordered, make sure we reply that they
are equal, which is better than giving an arbitrary answer --- at least
it doesn't depend on which one is passed as which arg.
2001-06-02 17:12:12 +00:00
Jan Wieck
fc7c16fd16 dllist.c is included in the frontend libpq interface via symlink.
There is no elog() available. Used fprintf(stderr, ...) and exit
instead.

Jan
2001-06-02 15:16:55 +00:00
Tom Lane
c6b1ef8fe7 Check for malloc failure. 2001-06-01 20:29:43 +00:00
Tom Lane
ddd96e1f21 Guard against malloc failure. Also, don't examine segP->lastBackend
until we hold the spinlock.
2001-06-01 20:07:16 +00:00
Tom Lane
d8adce8983 Check for malloc failure. 2001-06-01 19:54:58 +00:00
Tom Lane
25ee08e14a If spi.c wants to use malloc, it better test for malloc failure. 2001-06-01 19:43:55 +00:00
Tom Lane
7c0c9b3cce New improved version of bpcharin() may have got the truncation case
right, but it failed to get the padding case right.

This was obscured by subsequent application of bpchar() in all but one
regression test case, and that one didn't fail in an obvious way ---
trailing blanks are hard to see.  Add another test case to make it
more obvious if it breaks again.
2001-06-01 17:49:17 +00:00
Tom Lane
a51ec450ff Remove fastpath.c's lame attempt at caching function lookup info across
calls.  This has never actually cached anything, because postgres.c does
each fastpath call as a separate transaction command, and so fastpath.c
would always decide that its cache was outdated.  If it had worked, it
would now be failing for calls of oldstyle functions due to dangling
pointers in the FmgrInfo struct.  Rip it out for simplicity and bug-
proofing.
2001-06-01 15:45:42 +00:00
Tom Lane
0b370ea7c8 Clean up some minor problems exposed by further thought about Panon's bug
report on old-style functions invoked by RI triggers.  We had a number of
other places that were being sloppy about which memory context FmgrInfo
subsidiary data will be allocated in.  Turns out none of them actually
cause a problem in 7.1, but this is for arcane reasons such as the fact
that old-style triggers aren't supported anyway.  To avoid getting burnt
later, I've restructured the trigger support so that we don't keep trigger
FmgrInfo structs in relcache memory.  Some other related cleanups too:
it's not really necessary to call fmgr_info at all while setting up
the index support info in relcache entries, because those ScanKeyEntry
structs are never used to invoke the functions.  This should speed up
relcache initialization a tiny bit.
2001-06-01 02:41:36 +00:00
Tom Lane
3043810d97 Updates to make GIST work with multi-key indexes (from Oleg Bartunov
and Teodor Sigaev).  Declare key values as Datum where appropriate,
rather than char* (Tom Lane).
2001-05-31 18:16:55 +00:00
Tom Lane
e1107fc285 RI triggers would fail for datatypes using old-style equal function,
because cached fmgr info contained reference to a shorter-lived data
structure.  Also guard against possibility that fmgr_info could fail,
leaving an incomplete entry present in the hash table.
2001-05-31 17:32:33 +00:00
Bruce Momjian
53020d0fbe Remove OLD_FILE_NAMING code. No longer used. 2001-05-30 20:52:34 +00:00
Tom Lane
f1d5d0905c Tweak StrategyEvaluation data structure to eliminate hardwired limit on
number of strategies supported by an index AM.  Add missing copyright
notices and CVS $Header$ markers to GIST source files.
2001-05-30 19:53:40 +00:00
Tom Lane
6625cf5f4f Fix broken $Header$ declaration. 2001-05-30 18:32:29 +00:00
Bruce Momjian
33f2614aa1 Remove SEP_CHAR, replace with / or '/' as appropriate. 2001-05-30 14:15:27 +00:00
Bruce Momjian
7160c86ec2 These patches should fix check constraints not inheriting
when added by alter table add constraint.  The first file
patches backend/commands/command.c and the latter is a patch
to the alter table regression test.

Stephan Szabo
2001-05-30 13:00:03 +00:00
Bruce Momjian
36546c98b5 Attached is my patch that adds DROP CONSTRAINT support to PostgreSQL. I
basically want your guys feedback.  I have sprinkled some of my q's thru
the text delimited with the @@ symbol.  It seems to work perfectly.

[ Removed @@ comments because patch was reviewed. ]

At the moment it does CHECK constraints only, with inheritance.  However,
due to the problem mentioned before with the mismatching between inherited
constraints it may be wise to disable the inheritance feature for a while.
it is written in an extensible fashion to support future dropping of other
types of constraint, and is well documented.

Please send me your comments, check my use of locking, updating of
indices, use of ERROR and NOTICE, etc. and I will rework the patch based
on feedback until everyone
is happy with it...

Christopher Kings
2001-05-30 12:57:36 +00:00
Tom Lane
8a3b80deb0 Make text <=> char conversion functions convert zero character to and
from an empty text string.  This makes them consistent with the de facto
behavior of type char's I/O conversion functions, and avoids generating
text values with embedded nulls, which confuse many text operators.
2001-05-28 21:58:32 +00:00
Tatsuo Ishii
e23f8c4557 Fix a message error in utf_to_local 2001-05-28 01:00:25 +00:00
Tom Lane
9e7243063c When using a junkfilter, the output tuple should NOT be stored back into
the same tuple slot that the raw tuple came from, because that slot has
the wrong tuple descriptor.  Store it into its own slot with the correct
descriptor, instead.  This repairs problems with SPI functions seeing
inappropriate tuple descriptors --- for example, plpgsql code failing to
cope with SELECT FOR UPDATE.
2001-05-27 20:48:51 +00:00
Tom Lane
a3855c5761 Cause ExecCountSlots() accounting to bear some relationship to reality.
Rather surprising we hadn't seen bug reports about this ...
2001-05-27 20:42:20 +00:00
Tom Lane
73d1040bd9 Fix eqjoinsel() to make use of new statistics. 2001-05-27 17:37:48 +00:00
Peter Eisentraut
96147a6d1c Make UPDATE and DELETE privileges distinct. Add REFERENCES and TRIGGER
privileges.  INSERT and COPY FROM now require INSERT (only).  Add
privileges regression test.
2001-05-27 09:59:30 +00:00
Bruce Momjian
f6923ff3ac Oops, only wanted python change in the last commit. Backing out. 2001-05-25 15:45:34 +00:00
Bruce Momjian
dffb673692 While changing Cygwin Python to build its core as a DLL (like Win32
Python) to support shared extension modules, I have learned that Guido
prefers the style of the attached patch to solve the above problem.
I feel that this solution is particularly appropriate in this case
because the following:

    PglargeType
    PgType
    PgQueryType

are already being handled in the way that I am proposing for PgSourceType.

Jason Tishler
2001-05-25 15:34:50 +00:00
Bruce Momjian
f36fc7bb63 I haven't tried building postgres with the Watcom compiler for 7.1 because
it does not support 64bit integers. AFAIK that's the default data type for
OIDs, so I am not surprised that this does not work. Use gcc instead.
BTW., 7.1 does not compile as is with gcc either, I believed the
required patches made it into the 7.1.1 release but obviously I missed
the deadline.
Since the ports mailing list does not seem to be archived I have attached
a copy of the patch (for 7.1 and 7.1.1).

I've just performed a build of a Watcom compiled version and found a couple
of bugs in the watcom specific part of that patch. Please use the attached
version instead.

Tegge, Bernd
2001-05-24 15:53:34 +00:00