Commit Graph

541 Commits

Author SHA1 Message Date
Bruce Momjian f5a613c0ed >From what I gather, this should be a little cleaner because the
triggered
function now returns the right datatype.

--
Peter Eisentraut                  Sernanders väg 10:115
1999-12-14 00:12:06 +00:00
Bruce Momjian bcaabc5698 Depending on my interpreting (and programming) skills, this might solve
anywhere from zero to two TODO items.

* Allow flag to control COPY input/output of NULLs

I got this:
COPY table .... [ WITH NULL AS 'string' ]
which does what you'd expect. The default is \N, otherwise you can use
empty strings, etc. On Copy In this acts like a filter: every data item
that looks like 'string' becomes a NULL. Pretty straightforward.

This also seems to be related to

* Make postgres user have a password by default

If I recall this discussion correctly, the problem was actually that the
default password for the postgres (or any) user is in fact "\N", because
of the way copy is used. With this change, the file pg_pwd is copied out
with nulls as empty strings, so if someone doesn't have a password, the
password is just '', which one would expect from a new account. I don't
think anyone really wants a hard-coded default password.

Peter Eisentraut                  Sernanders väg 10:115
1999-12-14 00:08:21 +00:00
Bruce Momjian a82f9ffde6 New LDOUT makefile variable for QNX os. 1999-12-13 22:35:27 +00:00
Bruce Momjian cb00b7faa5 I'm in TODO mood today ...
* Document/trigger/rule so changes to pg_shadow recreate pg_pwd

I did it with a trigger and it seems to work like a charm. The function
that already updates the file for create and alter user has been made a
built-in "SQL" function and a trigger is created at initdb time.

Comments around the pg_pwd updating function seem to be worried about
this
routine being called concurrently, but I really don't see a reason to
worry about this. Verify for yourself. I guess we never had a system
trigger before, so treat this with care, and feel free to adjust the
nomenclature as well.

--
Peter Eisentraut                  Sernanders väg 10:115
1999-12-12 05:57:36 +00:00
Bruce Momjian 11023eb1f5 Meanwhile, database names with single quotes in names don't work very well
at all, and because of shell quoting rules this can't be fixed, so I put
in error messages to that end.

Also, calling create or drop database in a transaction block is not so
good either, because the file system mysteriously refuses to roll back rm
calls on transaction aborts. :) So I put in checks to see if a transaction
is in progress and signal an error.

Also I put the whole call in a transaction of its own to be able to roll
back changes to pg_database in case the file system operations fail.

The alternative location issues I posted recently were untouched, awaiting
the outcome of that discussion. Other than that, this should be much more
fool-proof now.

The docs I cleaned up as well.

Peter Eisentraut                  Sernanders väg 10:115
1999-12-12 05:15:10 +00:00
Jan Wieck 62c42a05a2 Added global variable to have RI triggers override
time qualification of HeapTupleSatisfiesSnapshot()

Jan
1999-12-10 12:34:15 +00:00
Bruce Momjian 97dec77fab Rename several destroy* functions/tags to drop*. 1999-12-10 03:56:14 +00:00
Bruce Momjian 3ffd3d82db Make LD -r as macros that can be changed for QNX. 1999-12-09 19:15:45 +00:00
Jan Wieck b8ef7e7f82 Completed FOREIGN KEY syntax.
Added functionality for automatic trigger creation during CREATE TABLE.

Added ON DELETE RESTRICT and some others.

Jan
1999-12-06 18:02:47 +00:00
Bruce Momjian 4901ff77bd Mention index name when reporting corruption. 1999-12-01 00:29:54 +00:00
Bruce Momjian 1f64926953 Fix compile error on older patch. 1999-11-30 04:29:57 +00:00
Bruce Momjian eebfb9baa5 create/alter user extension
This one should work much better than the one I sent in previously. The
functionality is the same, but the patch was missing one file resulting
in
the compilation failing. The docs also received a minor fix.

Peter Eisentraut                  Sernanders väg 10:115
1999-11-30 03:57:29 +00:00
Tom Lane d367f626f4 Add permissions check: now one must be the Postgres superuser or the
table owner in order to vacuum a table.  This is mainly to prevent
denial-of-service attacks via repeated vacuums.  Allow VACUUM to gather
statistics about system relations, except for pg_statistic itself ---
not clear that it's worth the trouble to make that case work cleanly.
Cope with possible tuple size overflow in pg_statistic tuples; I'm
surprised we never realized that could happen.  Hold a couple of locks
a little longer to try to prevent deadlocks between concurrent VACUUMs.
There still seem to be some problems in that last area though :-(
1999-11-29 04:43:15 +00:00
Tom Lane aa903cf07c Remove pg_vlock locking from VACUUM, allowing multiple VACUUMs to run in
parallel --- and, not incidentally, removing a common reason for needing
manual cleanup by the DB admin after a crash.  Remove initial global
delete of pg_statistics rows in VACUUM ANALYZE; this was not only bad
for performance of other backends that had to run without stats for a
while, but it was fundamentally broken because it was done outside any
transaction.  Surprising we didn't see more consequences of that.
Detect attempt to run VACUUM inside a transaction block.  Check for
query cancel request before starting vacuum of each table.  Clean up
vacuum's private portal storage if vacuum is aborted.
1999-11-28 02:10:01 +00:00
Tom Lane 4dded12faa COPY to a relation should keep write lock till transaction commit.
Thanks to Hiroshi for spotting the problem.
1999-11-27 21:52:53 +00:00
Bruce Momjian 922e53e6ea Enable pg_statistic cache use. 1999-11-25 00:15:57 +00:00
Bruce Momjian 74f418eb9a Add pg_statistic index, add missing Hiroshi file. 1999-11-24 16:52:50 +00:00
Bruce Momjian bb10bf319e Rename heap_replace to heap_update. 1999-11-24 00:44:37 +00:00
Bruce Momjian 6f9ff92cc0 Tid access method feature from Hiroshi Inoue, Inoue@tpf.co.jp 1999-11-23 20:07:06 +00:00
Bruce Momjian fc955b14ea Add system indexes to match all caches.
Make all system indexes unique.
Make all cache loads use system indexes.
Rename *rel to *relid in inheritance tables.
Rename cache names to be clearer.
1999-11-22 17:56:41 +00:00
Tom Lane d8ba3dfb0b Change backend-side COPY to write files with permissions 644 not 666
(whoever thought world-writable files were a good default????).  Modify
the pg_pwd code so that pg_pwd is created with 600 permissions.  Modify
initdb so that permissions on a pre-existing PGDATA directory are not
blindly accepted: if the dir is already there, it does chmod go-rwx
to be sure that the permissions are OK and the dir actually is owned
by postgres.
1999-11-21 04:16:17 +00:00
Jan Wieck 73bfcf6b22 Changed pg_rewrite attributes ev_qual and ev_action to the new
compressed lztext data type.

Jan
1999-11-18 13:56:30 +00:00
Bruce Momjian 7a203a3f02 Add recreate index notice to vacuum error. 1999-11-14 17:27:01 +00:00
Bruce Momjian 86ef36c907 New NameStr macro to convert Name to Str. No need for var.data anymore.
Fewer calls to nameout.

Better use of RelationGetRelationName.
1999-11-07 23:08:36 +00:00
Bruce Momjian d426869b89 Fix compile after COMMENT problem. 1999-10-26 16:32:46 +00:00
Bruce Momjian 577e21b34f Hello.
The following patch extends the COMMENT ON functionality to the
rest of the database objects beyond just tables, columns, and views. The
grammer of the COMMENT ON statement now looks like:

COMMENT ON [
  [ DATABASE | INDEX | RULE | SEQUENCE | TABLE | TYPE | VIEW ] <objname>
|

  COLUMN <relation>.<attribute> |
  AGGREGATE <aggname> <aggtype> |
  FUNCTION <funcname> (arg1, arg2, ...) |
  OPERATOR <op> (leftoperand_typ rightoperand_typ) |
  TRIGGER <triggername> ON relname>

Mike Mascari
(mascarim@yahoo.com)
1999-10-26 03:12:39 +00:00
Tom Lane 51f62d505e Standardize on MAXPGPATH as the size of a file pathname buffer,
eliminating some wildly inconsistent coding in various parts of the
system.  I set MAXPGPATH = 1024 in config.h.in.  If anyone is really
convinced that there ought to be a configure-time test to set the
value, go right ahead ... but I think it's a waste of time.
1999-10-25 03:08:03 +00:00
Bruce Momjian 7acc237744 This patch implements ORACLE's COMMENT SQL command.
>From the ORACLE 7 SQL Language Reference Manual:
-----------------------------------------------------
COMMENT

Purpose:

To add a comment about a table, view, snapshot, or
column into the data dictionary.

Prerequisites:

The table, view, or snapshot must be in your own
schema
or you must have COMMENT ANY TABLE system privilege.

Syntax:

COMMENT ON [ TABLE table ] |
           [ COLUMN table.column] IS 'text'

You can effectively drop a comment from the database
by setting it to the empty string ''.
-----------------------------------------------------

Example:

COMMENT ON TABLE workorders IS
   'Maintains base records for workorder information';

COMMENT ON COLUMN workorders.hours IS
   'Number of hours the engineer worked on the task';

to drop a comment:

COMMENT ON COLUMN workorders.hours IS '';

The current patch will simply perform the insert into
pg_description, as per the TODO. And, of course, when
the table is dropped, any comments relating to it
or any of its attributes are also dropped. I haven't
looked at the ODBC source yet, but I do know from
an ODBC client standpoint that the standard does
support the notion of table and column comments.
Hopefully the ODBC driver is already fetching these
values from pg_description, but if not, it should be
trivial.

Hope this makes the grade,

Mike Mascari
(mascarim@yahoo.com)
1999-10-15 01:49:49 +00:00
Tom Lane 3eb1c82277 Fix planner and rewriter to follow SQL semantics for tables that are
mentioned in FROM but not elsewhere in the query: such tables should be
joined over anyway.  Aside from being more standards-compliant, this allows
removal of some very ugly hacks for COUNT(*) processing.  Also, allow
HAVING clause without aggregate functions, since SQL does.  Clean up
CREATE RULE statement-list syntax the same way Bruce just fixed the
main stmtmulti production.
CAUTION: addition of a field to RangeTblEntry nodes breaks stored rules;
you will have to initdb if you have any rules.
1999-10-07 04:23:24 +00:00
Tom Lane eabc714a91 Reimplement parsing and storage of default expressions and constraint
expressions in CREATE TABLE.  There is no longer an emasculated expression
syntax for these things; it's full a_expr for constraints, and b_expr
for defaults (unfortunately the fact that NOT NULL is a part of the
column constraint syntax causes a shift/reduce conflict if you try a_expr.
Oh well --- at least parenthesized boolean expressions work now).  Also,
stored expression for a column default is not pre-coerced to the column
type; we rely on transformInsertStatement to do that when the default is
actually used.  This means "f1 datetime default 'now'" behaves the way
people usually expect it to.
BTW, all the support code is now there to implement ALTER TABLE ADD
CONSTRAINT and ALTER TABLE ADD COLUMN with a default value.  I didn't
actually teach ALTER TABLE to call it, but it wouldn't be much work.
1999-10-03 23:55:40 +00:00
Tom Lane 6eb8d255d2 Allow CREATE FUNCTION's WITH clause to be used for all language types,
not just C, so that ISCACHABLE attribute can be specified for user-defined
functions.  Get rid of ParamString node type, which wasn't actually being
generated by gram.y anymore, even though define.c thought that was what
it was getting.  Clean up minor bug in dfmgr.c (premature heap_close).
1999-10-02 21:33:33 +00:00
Jan Wieck ccecf1fa46 Added utils/adt/ri_triggers with empty shells for the
FOREIGN KEY triggers.

Added pg_proc entries for all the new functions.

Jan
1999-09-30 14:54:24 +00:00
Jan Wieck 1547ee017c This is part #1 for of the DEFERRED CONSTRAINT TRIGGER support.
Implements the CREATE CONSTRAINT TRIGGER and SET CONSTRAINTS commands.

TODO:
    Generic builtin trigger procedures
    Automatic execution of appropriate CREATE CONSTRAINT... at CREATE TABLE
    Support of new trigger type in pg_dump
    Swapping of huge # of events to disk

Jan
1999-09-29 16:06:40 +00:00
Vadim B. Mikheev 3fea625e9d Make tree compilable (+WAL). 1999-09-28 11:41:09 +00:00
Bruce Momjian 9394d62c73 I have been working with user defined types and user defined c
functions.  One problem that I have encountered with the function
manager is that it does not allow the user to define type conversion
functions that convert between user types. For instance if mytype1,
mytype2, and mytype3 are three Postgresql user types, and if I wish to
define Postgresql conversion functions like

I run into problems, because the Postgresql dynamic loader would look
for a single link symbol, mytype3, for both pieces of object code.  If
I just change the name of one of the Postgresql functions (to make the
symbols distinct), the automatic type conversion that Postgresql uses,
for example, when matching operators to arguments no longer finds the
type conversion function.

The solution that I propose, and have implemented in the attatched
patch extends the CREATE FUNCTION syntax as follows. In the first case
above I use the link symbol mytype2_to_mytype3 for the link object
that implements the first conversion function, and define the
Postgresql operator with the following syntax

The patch includes changes to the parser to include the altered
syntax, changes to the ProcedureStmt node in nodes/parsenodes.h,
changes to commands/define.c to handle the extra information in the AS
clause, and changes to utils/fmgr/dfmgr.c that alter the way that the
dynamic loader figures out what link symbol to use.  I store the
string for the link symbol in the prosrc text attribute of the pg_proc
table which is currently unused in rows that reference dynamically
loaded
functions.


Bernie Frankpitt
1999-09-28 04:34:56 +00:00
Bruce Momjian d62a7ac6d3 Massimo's SET FSYNC and SHOW PG_OPTIONS changes, without SET QUERY_LIMIT. 1999-09-27 20:27:32 +00:00
Bruce Momjian 12a932251c Cancel query support from Massimo 1999-09-27 20:00:44 +00:00
Bruce Momjian 74a263ed34 Fix to give super user and createdb user proper update catalog rights. 1999-09-27 16:44:56 +00:00
Tom Lane e812458b27 Several changes here, not very related but touching some of the same files.
* Buffer refcount cleanup (per my "progress report" to pghackers, 9/22).
* Add links to backend PROC structs to sinval's array of per-backend info,
and use these links for routines that need to check the state of all
backends (rather than the slow, complicated search of the ShmemIndex
hashtable that was used before).  Add databaseOID to PROC structs.
* Use this to implement an interlock that prevents DESTROY DATABASE of
a database containing running backends.  (It's a little tricky to prevent
a concurrently-starting backend from getting in there, since the new
backend is not able to lock anything at the time it tries to look up
its database in pg_database.  My solution is to recheck that the DB is
OK at the end of InitPostgres.  It may not be a 100% solution, but it's
a lot better than no interlock at all...)
* In ALTER TABLE RENAME, flush buffers for the relation before doing the
rename of the physical files, to ensure we don't get failures later from
mdblindwrt().
* Update TRUNCATE patch so that it actually compiles against current
sources :-(.
You should do "make clean all" after pulling these changes.
1999-09-24 00:25:33 +00:00
Bruce Momjian e7cad7b0cb Add TRUNCATE command, with psql help and sgml additions. 1999-09-23 17:03:39 +00:00
Tom Lane bd272cace6 Mega-commit to make heap_open/heap_openr/heap_close take an
additional argument specifying the kind of lock to acquire/release (or
'NoLock' to do no lock processing).  Ensure that all relations are locked
with some appropriate lock level before being examined --- this ensures
that relevant shared-inval messages have been processed and should prevent
problems caused by concurrent VACUUM.  Fix several bugs having to do with
mismatched increment/decrement of relation ref count and mismatched
heap_open/close (which amounts to the same thing).  A bogus ref count on
a relation doesn't matter much *unless* a SI Inval message happens to
arrive at the wrong time, which is probably why we got away with this
sloppiness for so long.  Repair missing grab of AccessExclusiveLock in
DROP TABLE, ALTER/RENAME TABLE, etc, as noted by Hiroshi.
Recommend 'make clean all' after pulling this update; I modified the
Relation struct layout slightly.
Will post further discussion to pghackers list shortly.
1999-09-18 19:08:25 +00:00
Tom Lane 4644fc8071 Eliminate query length limitation imposed by pg_client_to_server
and pg_server_to_client.  Eliminate copy.c's restriction on the length
of a single attribute.
1999-09-11 22:28:11 +00:00
Tom Lane b399805e22 Eliminate elog()'s hardwired limit on length of an error message.
This change seems necessary in conjunction with long queries, and it
cleans up some bogosity in connection with long EXPLAIN texts anyway.
Note that current libpq will accept any length error message (at least
until it runs out of memory); prior versions have a limit of 8K, but
will cleanly discard excess error text, so there shouldn't be any
big compatibility problems with old clients.
1999-09-11 19:06:42 +00:00
Tom Lane a24ebc3f7e Remove no-longer-needed code to update temprel's copy of
pg_class tuple during ALTER TABLE ADD COLUMN.
1999-09-04 21:19:33 +00:00
Tom Lane 130e372b5d Minor improvements to stringinfo package to make it more
robust, since it's about to get used much more heavily.
1999-08-31 01:28:37 +00:00
Tatsuo Ishii edda70c0de Fix vacuum's memory consumption 1999-08-25 12:20:57 +00:00
Tom Lane 78114cd4d4 Further planner/optimizer cleanups. Move all set_tlist_references
and fix_opids processing to a single recursive pass over the plan tree
executed at the very tail end of planning, rather than haphazardly here
and there at different places.  Now that tlist Vars do not get modified
until the very end, it's possible to get rid of the klugy var_equal and
match_varid partial-matching routines, and just use plain equal()
throughout the optimizer.  This is a step towards allowing merge and
hash joins to be done on expressions instead of only Vars ...
1999-08-22 20:15:04 +00:00
Tom Lane ed3f69168f EXPLAIN didn't know about 'Materialize' plan nodes. 1999-08-16 23:47:23 +00:00
Bruce Momjian 158fd5f1c4 > > Prevent sorting if result is already sorted
> >
> > was implemented by Jan Wieck.
> > His work is for ascending order cases.
> >
> > Here is a patch to prevent sorting also in descending
> > order cases.
> > Because I had already changed _bt_first() to position
> > backward correctly before v6.5,this patch would work.
> >
Hiroshi Inoue
Inoue@tpf.co.jp
1999-08-09 06:20:27 +00:00
Tom Lane 14f84cd821 Store -1 in attdisbursion to signal 'no duplicates in column'.
Centralize att_disbursion readout logic.
1999-08-09 03:16:47 +00:00
Tom Lane fb491a5854 For a unique-key attribute (no duplicate values), vacuum analyze
was recording a disbursion of 0, not the correct value 1/numberOfRows.
1999-08-08 17:13:10 +00:00
Tom Lane 44878506d8 First step in fixing selectivity-estimation code. eqsel and
neqsel now behave as per my suggestions in pghackers a few days ago.
selectivity for < > <= >= should work OK for integral types as well, but
still need work for nonintegral types.  Since these routines have never
actually executed before :-(, this may result in some significant changes
in the optimizer's choices of execution plans.  Let me know if you see
any serious misbehavior.
CAUTION: THESE CHANGES REQUIRE INITDB.  pg_statistic table has changed.
1999-08-01 04:54:25 +00:00
Bruce Momjian 44763a2b23 Make usecatupd disabled for normal users, and allow normal users to
update temp tables with this setting.
1999-07-30 18:09:49 +00:00
Tom Lane 2aa64f79f5 Plug several holes in backend's ability to cope with
unexpected loss of connection to frontend.
1999-07-22 02:40:07 +00:00
Bruce Momjian faf7d78174 Install new alignment code to use MAXALIGN rather than DOUBLEALIGN where
approproate.
1999-07-19 07:07:29 +00:00
Bruce Momjian a927d6ea4e configure cleanup 1999-07-18 18:03:50 +00:00
Bruce Momjian 3406901a29 Move some system includes into c.h, and remove duplicates. 1999-07-17 20:18:55 +00:00
Tom Lane c62b8a68bf Fix incorrect declaration of rtentry as 'ResTarget' where it
should be 'RangeTblEntry' ; explain.c had copied the erroneous code.
1999-07-17 19:01:21 +00:00
Bruce Momjian 7d5b08dec0 More cleanup 1999-07-16 05:41:19 +00:00
Bruce Momjian a71802e12e Final cleanup. 1999-07-16 05:00:38 +00:00
Bruce Momjian 9b645d481c Update #include cleanups 1999-07-16 03:14:30 +00:00
Bruce Momjian a9591ce66a Change #include's to use <> and "" as appropriate. 1999-07-15 23:04:24 +00:00
Bruce Momjian 2e6b1e63a3 Remove unused #includes in *.c files. 1999-07-15 22:40:16 +00:00
Bruce Momjian 4b2c2850bf Clean up #include in /include directory. Add scripts for checking includes. 1999-07-15 15:21:54 +00:00
Bruce Momjian e9c977da7d Fix spelling of variable name. 1999-07-07 09:36:45 +00:00
Bruce Momjian 1391098851 Fix misspelling. 1999-07-07 09:11:15 +00:00
Bruce Momjian 97dfff832c Fix to prevent too large tuple from being created. 1999-07-03 00:33:04 +00:00
Bruce Momjian 326d8658ad Change form() to varargform() to prevent portability problems. 1999-06-19 04:54:23 +00:00
Tom Lane 285610e9ea Explain didn't handle inheritance correctly (it didn't
manipulate rtable the same way executor does).
1999-06-17 23:45:32 +00:00
Bruce Momjian 4c65382596 Remove QUERY_LIMIT and documenation on same. Change _ALIGN to TYPEALIGN
for Irix.
1999-06-17 15:16:09 +00:00
Tom Lane d9e223d53c Fix critical error noticed by Massimo: copy.c used to have a
special hack to ensure it would close its output file even after failure
due to elog(ERROR) partway through the copy.  This is now unnecessary
because fd.c takes care of cleaning up open files at transaction abort;
worse, after fd.c closed the file copy.c would try to do so *again* at
the start of the next COPY command.  This would result in havoc in most
implementations of stdio library.
1999-06-12 20:41:25 +00:00
Vadim B. Mikheev ba740a0917 Change Assert(Ptp.t_data->t_xmax == tp.t_data->t_xmin) to :
/*
 * Read above about cases when !ItemIdIsUsed(Citemid)
 * (child item is removed)... Due to the fact that
 * at the moment we don't remove unuseful part of
 * update-chain, it's possible to get too old
 * parent row here. Like as in the case which
 * caused this problem, we stop shrinking here.
 * I could try to find real parent row but want
 * not to do it because of real solution will
 * be implemented anyway, latter, and we are too
 * close to 6.5 release.        - vadim 06/11/99
 */
if (Ptp.t_data->t_xmax != tp.t_data->t_xmin)
...
1999-06-11 09:35:08 +00:00
Vadim B. Mikheev 78f7ccc982 1. Fix for elog(ERROR, "EvalPlanQual: t_xmin is uncommitted ?!")
and possibly for other cases too:

   DO NOT cache status of transaction in unknown state
   (i.e. non-committed and non-aborted ones)

   Example:
   T1 reads row updated/inserted by running T2 and cache T2 status.
   T2 commits.
   Now T1 reads a row updated by T2 and with HEAP_XMAX_COMMITTED
   in t_infomask (so cached T2 status is not changed).
   Now T1 EvalPlanQual gets updated row version without HEAP_XMIN_COMMITTED
   -> TransactionIdDidCommit(t_xmin) and TransactionIdDidAbort(t_xmin)
   return FALSE and T2 decides that t_xmin is not committed and gets
   ERROR above.

   It's too late to find more smart way to handle such cases and so
   I just changed xact status caching and got rid TransactionIdFlushCache()
   from code.

   Changed: transam.c, xact.c, lmgr.c and transam.h - last three
   just because of TransactionIdFlushCache() is removed.

2. heapam.c:

   T1 marked a row for update. T2 waits for T1 commit/abort.
   T1 commits. T3 updates the row before T2 locks row page.
   Now T2 sees that new row t_xmax is different from xact id (T1)
   T2 was waiting for. Old code did Assert here. New one goes to
   HeapTupleSatisfiesUpdate. Obvious changes too.

3. Added Assert to vacuum.c
4. bufmgr.c: break
   Assert(buf->r_locks == 0 && !buf->ri_lock)
   into two Asserts.
1999-06-10 14:17:12 +00:00
Vadim B. Mikheev 1b812d9358 1. xact.c: update comments about changing MyProc->xid and MyProc->xmin.
2. varsup.c:ReadNewTransactionId(): don't read nextXid from disk -
   this func doesn't allocate next xid, so ShmemVariableCache->nextXid
   may be used (but GetNewTransactionId() must be called first).
3. vacuum.c: change elog(ERROR, "Child item....") to elog(NOTICE) -
   this is not ERROR, proper handling is just not implemented, yet.
4. s_lock.c: increase S_MAX_BUSY by 2 times.
5. shmem.c:GetSnapshotData(): have to call ReadNewTransactionId()
   _after_ SpinAcquire(ShmemIndexLock).
1999-06-06 20:19:35 +00:00
Vadim B. Mikheev f103501286 Unuseful tuple.t_data->t_infomask & HEAP_XMIN_COMMITTED in
vc_scanheap().
1999-06-03 13:25:54 +00:00
Vadim B. Mikheev df9e539ea2 1. Run all pg_dump queries in single serializable transaction.
2. Get rid of locking when updating statistics in vacuum.
3. Use QuerySnapshot in COPY TO and call SetQuerySnashot
   in main tcop loop before FETCH and COPY TO.
1999-05-29 10:25:33 +00:00
Bruce Momjian 278bbf4572 Make functions static or NOT_USED as appropriate. 1999-05-26 12:57:23 +00:00
Bruce Momjian fcff1cdf4e Another pgindent run. Sorry folks. 1999-05-25 22:43:53 +00:00
Bruce Momjian 07842084fe pgindent run over code. 1999-05-25 16:15:34 +00:00
Vadim B. Mikheev 7e14593d2e Fix tuple chain moving bug found by "Hiroshi Inoue" <Inoue@tpf.co.jp>. 1999-05-23 09:10:24 +00:00
Tom Lane 33773af95b Generate distinct error messages for trigger function not found
and trigger function found but returns wrong type.
1999-05-20 14:39:49 +00:00
Bruce Momjian c2b75c83f3 All works on linux now by my tests and regression(with patch below).
ALTER TABLE RENAME with extents.
Ole Gjerde
1999-05-17 18:24:48 +00:00
Bruce Momjian 4853495e03 Change error messages to oids come out as %u and not %d. Change has no
real affect now.
1999-05-10 00:46:32 +00:00
Tom Lane 0b69d8a27c Rearrange top-level rewrite operations so that EXPLAIN works
on queries involving UNION, EXCEPT, INTERSECT.
1999-05-09 23:31:47 +00:00
Vadim B. Mikheev 202e523d10 Mistyping by me.
Fixed by Hiroshi.
1999-05-09 14:00:29 +00:00
Bruce Momjian 210055ad61 here are some patches for 6.5.0 which I already submitted but have never
been applied. The patches are in the .tar.gz attachment at the end:

varchar-array.patch     this patch adds support for arrays of bpchar() and
                        varchar(), which where always missing from postgres.

                        These datatypes can be used to replace the _char4,
                        _char8, etc., which were dropped some time ago.

block-size.patch        this patch fixes many errors in the parser and other
                        program which happen with very large query statements
                        (> 8K) when using a page size larger than 8192.

                        This patch is needed if you want to submit queries
                        larger than 8K. Postgres supports tuples up to 32K
                        but you can't insert them because you can't submit
                        queries larger than 8K. My patch fixes this problem.

                        The patch also replaces all the occurrences of `8192'
                        and `1<<13' in the sources with the proper constants
                        defined in include files. You should now never find
                        8192 hardwired in C code, just to make code clearer.


--
Massimo Dal Zotto
1999-05-03 19:10:48 +00:00
Tom Lane 87d95ca04d Arrange for VACUUM to delete the init file that relcache.c uses
to save a little bit of backend startup time.  This way, the first
backend started after a VACUUM will rebuild the init file with up-to-date
statistics for the critical system indexes.
1999-05-01 19:09:46 +00:00
Tom Lane 40cad8b66f My first cut at libpq revision didn't handle MULTIBYTE correctly,
but I think it's OK now...
1999-04-25 19:27:47 +00:00
Tom Lane 95cc41b81d Revise backend libpq interfaces so that messages to the frontend
can be generated in a buffer and then sent to the frontend in a single
libpq call.  This solves problems with NOTICE and ERROR messages generated
in the middle of a data message or COPY OUT operation.
1999-04-25 03:19:27 +00:00
Bruce Momjian fc08814e00 Rename explain's "size" to "rows". 1999-04-23 21:23:49 +00:00
Bruce Momjian c672559c9c Fix adding columns to a temp table. 1999-04-13 19:04:33 +00:00
Vadim B. Mikheev 12a5aa4f1a Some comments... 1999-04-12 16:56:36 +00:00
Tom Lane 098e043849 Fix CREATE OPERATOR ... LANGUAGE 'internal', which I broke while
making prosrc instead of proname be the link to the actual internal function.
1999-04-09 22:35:43 +00:00
Tom Lane 97c52abcc5 Repair problems with omitted password and VALID UNTIL
parameters in CREATE USER.
1999-04-02 06:16:36 +00:00
Tom Lane 0b874f01dd Clean up compile errors and warnings, cf Billy Allie's
complaints (and some of my own).
1999-04-02 04:51:05 +00:00
Bruce Momjian 0000a0c004 Small cleanups. 1999-03-30 01:37:28 +00:00
Vadim B. Mikheev fdf6be80f9 1. Vacuum is updated for MVCC.
2. Much faster btree tuples deletion in the case when first on page
   index tuple is deleted (no movement to the left page(s)).
3. Remember blkno of new root page in BTPageOpaque of
   left/right siblings when root page is splitted.
1999-03-28 20:32:42 +00:00
Bruce Momjian 344dfc0b0f Remove Tee code, move to _deadcode. 1999-03-23 16:51:04 +00:00
Bruce Momjian 92781fc18a cleanups 1999-03-23 05:41:00 +00:00
Bruce Momjian 58118db39d Add new postgres -O option to allow system table structure changes. 1999-03-17 22:53:31 +00:00
Bruce Momjian 89b762e509 Fix snprintf with strings, and nextval('"Aa"'); 1999-03-16 04:26:01 +00:00
Bruce Momjian 434762b559 Here is a patch.
I have changed to call pg_exec_query_dest() instead of pg_exec_query().

Thanks.

Hiroshi Inoue
1999-03-16 03:24:18 +00:00
Bruce Momjian 1a305b7ad5 Drop buffers before destroying database files. 1999-03-15 14:07:44 +00:00
Bruce Momjian f6a9ed0445 Hello,
I've been working on the following TODO list item:
  * psql \d on index with char()/varchar() fields shows improper length

I've attached a simple patch to fix this.

-Ryan
1999-03-14 05:23:12 +00:00
Marc G. Fournier f34240de06 Changes to fix/improve the dynamic loading on NT
From: Horak Daniel <horak@mmp.plzen-city.cz>
1999-03-09 13:39:15 +00:00
Tom Lane 98f739454c Remove recipe.o from Makefile ... dead code not quite dead enough,
it seems.
1999-02-27 21:42:33 +00:00
Bruce Momjian 6df955fd3b Fix problem with selectivity error in added columns with ALTER TABLE.
Move files to deadcode.
1999-02-24 17:29:06 +00:00
Marc G. Fournier 8c3e8a8a0e From: Tatsuo Ishii <t-ishii@sra.co.jp>
Ok. I made patches replacing all of "#if FALSE" or "#if 0" to "#ifdef
NOT_USED" for current. I have tested these patches in that the
postgres binaries are identical.
1999-02-21 03:49:55 +00:00
Bruce Momjian b4e7510e09 Enable bushy and right-hand queries by default. 1999-02-18 06:01:11 +00:00
Bruce Momjian 6724a50787 Change my-function-name-- to my_function_name, and optimizer renames. 1999-02-13 23:22:53 +00:00
Bruce Momjian 318e593f03 Rename Temp to Noname for noname tables. 1999-02-09 17:03:14 +00:00
Jan Wieck be948af2e8 Added LIMIT/OFFSET functionality including new regression test for it.
Removed CURRENT keyword for rule queries and changed rules regression
accordingly. CURRENT has beed announced to disappear in v6.5.

Jan
1999-02-08 14:14:32 +00:00
Jan Wieck ef590e101e Changed ExecConstraints() and ExecRelCheck() to cache the constraints
qualification expression trees in the execution state. Prevents from
memory exhaustion on INSERT, UPDATE or COPY to tables that have CHECK
constraints. Speedup against the variant using freeObject() is more than
factor 2.

Jan
1999-02-07 16:17:14 +00:00
Bruce Momjian 9322950aa4 Cleanup of source files where 'return' or 'var =' is alone on a line. 1999-02-03 21:18:02 +00:00
Bruce Momjian 8d9237d485 Optimizer rename ClauseInfo -> RestrictInfo. Update optimizer README. 1999-02-03 20:15:53 +00:00
Bruce Momjian 4390b0bfbe Add TEMP tables/indexes. Add COPY pfree(). Other cleanups. 1999-02-02 03:45:56 +00:00
Jan Wieck 7fc75517df Fixed growing of backend due to not pfree()'d data on COPY FROM
Fixed growing of backend if BEFORE DELETE trigger returns heap tuple
different from trigtuple.

Jan
1999-02-01 20:25:55 +00:00
Vadim B. Mikheev aaef7beb79 Hope that execMain.c good merged.
Fix for BEFORE ROW UPDATE triggers: result tuple may be different
(due to concurrent update) from one initially produced by top level plan.
1999-01-29 11:56:01 +00:00
Vadim B. Mikheev e3a1ab764e READ COMMITTED isolevel is implemented and is default now. 1999-01-29 09:23:17 +00:00
Tom Lane e6725d1574 Add explicit buffering in backend libpq, to compensate for
buffering lost by not going through stdio anymore for client I/O.
1999-01-23 22:27:29 +00:00
Bruce Momjian c91dbcc5c7 The following patch finishes primary key support. Previously, when
a field was labelled as a primary key, the system automatically
created a unique index on the field.  This patch extends it so
that the index has the indisprimary field set.  You can pull a list
of primary keys with the followiing select.

SELECT pg_class.relname, pg_attribute.attname
    FROM pg_class, pg_attribute, pg_index
    WHERE pg_class.oid = pg_attribute.attrelid AND
        pg_class.oid = pg_index.indrelid AND
        pg_index.indkey[0] = pg_attribute.attnum AND
        pg_index.indisunique = 't';

There is nothing in this patch that modifies the template database to
set the indisprimary attribute for system tables.  Should they be
changed or should we only be concerned with user tables?

D'Arcy
1999-01-21 22:48:20 +00:00
Bruce Momjian 7a6b562fdf Apply Win32 patch from Horak Daniel. 1999-01-17 06:20:06 +00:00
Marc G. Fournier 3b3ffc8d97 From: Magnus Hagander <mha@sollentuna.net>
Here is a first patch to cleanup the backend side of libpq.
This patch removes all external dependencies on the "Pfin" and "Pfout" that
are declared in pqcomm.h. These variables are also changed to "static" to
make sure.
Almost all the change is in the handler of the "copy" command - most other
areas of the backend already used the correct functions.
This change will make the way for cleanup of the internal stuff there - now
that all the functions accessing the file descriptors are confined to a
single directory.
1999-01-11 03:56:11 +00:00
Jan Wieck eeff2c94be Fixed nodeToString() to put out "<>" for NULL strings again.
More cleanups to appendStringInfo() usage in node/outfuncs.c.

Jan
1998-12-18 14:45:09 +00:00
Vadim B. Mikheev 3498d878cb SET TRANSACTION ISOLATION LEVEL ...
LOCK TABLE IN ... MODE
...implemented
1998-12-18 09:10:39 +00:00
Vadim B. Mikheev 3f7fbf85dc Initial MVCC code.
New code for locking buffer' context.
1998-12-15 12:47:01 +00:00
Marc G. Fournier 9396802f14 more cleanups...of note, appendStringInfo now performs like sprintf(),
where you state a format and arguments.  the old behavior required
each appendStringInfo to have to have a sprintf() before it if any
formatting was required.

Also shortened several instances where there were multiple appendStringInfo()
calls in a row, doing nothing more then adding one more word to the String,
instead of doing them all in one call.
1998-12-14 08:11:17 +00:00
Marc G. Fournier df1468e251 Many more cleanups... 1998-12-14 06:50:32 +00:00
Marc G. Fournier 7c3b7d2744 Initial attempt to clean up the code...
Switch sprintf() to snprintf()
Remove any/all #if 0 -or- #ifdef NOT_USED -or- #ifdef FALSE sections of
	code
1998-12-14 05:19:16 +00:00
Vadim B. Mikheev 6beba218d7 New HeapTuple structure/interface. 1998-11-27 19:52:36 +00:00
Vadim B. Mikheev 34680930d5 Fix using indices in OR.
EXPLAIN all indices used.
1998-11-22 10:48:45 +00:00
Tom Lane 39792e5b01 EXPLAIN VERBOSE had a very high probability of triggering
a backend core dump, because it was concatenating a potentially long
string onto another string that didn't necessarily have enough room.
Shame, shame.
1998-11-08 19:38:34 +00:00
Tom Lane 3d87216ab9 Get rid of some minor compiler warnings.
(HP's cc doesn't like if you forward-declare a routine static,
and then don't make it static in the actual definition...)
1998-10-26 01:00:13 +00:00
Bruce Momjian 54fd5f6cc4 Fix from Jan for vacuum statistics loss. 1998-10-23 16:49:24 +00:00
Bruce Momjian aeb277c405 Update for bsdi 3.0. 1998-10-23 01:02:10 +00:00
Bruce Momjian 524f4b2d10 The patch does 2 things:
Fixes  a  bug  in  the rule system that caused a crashing
        backend when a join-view with calculated column  is  used
        in subselect.

        Modifies  EXPLAIN to explain rewritten queries instead of
        the plain SeqScan on a view. Rules can produce very  deep
MORE

Jan.
1998-10-21 16:21:29 +00:00
Bruce Momjian 8cec4cf91b New QUERY_LIMIT set command. 1998-10-14 05:10:12 +00:00
Bruce Momjian beac8c1c46 Fix for vacuum and cache use. Fix for BSDI 4.0. 1998-10-12 00:53:42 +00:00
Bruce Momjian 6799af7d80 Reverse out vacuum change. 1998-10-09 21:31:34 +00:00
Bruce Momjian 2ac3173d75 major/minor shared name cleanup 1998-10-09 21:28:50 +00:00
Tom Lane 5524a85172 Clean up minor gcc warning about lack of reset_r_plans prototype. 1998-10-08 23:50:28 +00:00
Bruce Momjian 681343ab6c No need compile command/version.c anymore. 1998-10-08 18:37:14 +00:00
Bruce Momjian 173c555948 Make functions static or ifdef NOT_USED. Prevent pg_version creation. 1998-10-08 18:30:52 +00:00
Bruce Momjian 30debec6e5 Hello!
Here are two new patches for the Win32 support.

1) The patch based on the one from Hiroshi Inoue [Inoue@tpf.co.jp], to
load
Winsock.dll from libpq.dll.
2) A patch for psql.c to remove the call to WSAStartup(), since it is
not
required when it's done in libpq.dll.

I'm still looking for the possibility of having a crypt() function in
libpq.dll too, the same way getopt was included. Any chance of getting
this
before 6.4, or should we wait for the next one?


//Magnus
1998-10-08 00:10:49 +00:00
Bruce Momjian cb4292ea64 vacuum cleanups 1998-10-07 22:31:50 +00:00
Bruce Momjian 9549a8cd7d Fix snprintf.c for machines that don't have long long, like some Irix. 1998-10-07 17:12:52 +00:00
Tom Lane c77a29a14e Substantial rewrite of async.c to avoid problems with non-reentrant stdio
and possibly other problems.  Minor changes in xact.c and postgres.c's
main loop to support new handling of async NOTIFY.
1998-10-06 02:40:09 +00:00
Thomas G. Lockhart 86234a0965 Fix up warning and error messages to use single-quotes around strings. 1998-10-05 02:49:36 +00:00
Bruce Momjian 33572dd7ed Fix for constbyval . 1998-10-01 22:45:32 +00:00
Bruce Momjian b932b1b1c4 Allow 8-key indexes. 1998-09-23 04:22:14 +00:00
Bruce Momjian b5ed4be218 AIX align fix. 1998-09-08 22:15:42 +00:00
Bruce Momjian 202751921d Alignment cleanup so no more massive switch statements for alignment,
just two macros.
1998-09-07 05:35:48 +00:00
Bruce Momjian fcecc5ca1e [Part #1: Type: text/plain, Encoding: 7bit, Size: 59]
I will be cleaning this up more before the Oct 1 deadline.

David Hartwig.  AND/OR fix.
1998-09-03 02:34:35 +00:00
Bruce Momjian 58fdae0ddf Fix for indexing problems. 1998-09-02 23:05:37 +00:00
Bruce Momjian fa1a8d6a97 OK, folks, here is the pgindent output. 1998-09-01 04:40:42 +00:00
Bruce Momjian af74855a60 Renaming cleanup, no pgindent yet. 1998-09-01 03:29:17 +00:00
Marc G. Fournier 6c4982851a From: Massimo Dal Zotto <dz@cs.unitn.it> 1998-08-30 21:05:27 +00:00
Bruce Momjian f1d0e64ff9 Prevent file descriptor leak from failed COPY. 1998-08-29 18:19:59 +00:00
Bruce Momjian 2618fcdf0d Fix scanner name length trimming. 1998-08-29 05:27:17 +00:00
Bruce Momjian 9728ce7499 This is the first (of hopefully few) AIX port patches. This patch
was tested with Linux/GCC.  I still have some issues with with the
snprintf() function.

David Hartwig
1998-08-29 04:09:29 +00:00
Bruce Momjian d8dbbc8cf9 vacuum fix. 1998-08-28 04:57:21 +00:00
Bruce Momjian a53ea467e1 Hi all,
I  don't know if this is really related to the initdb problem
    discussion (haven't followed it enough). But seems so because
    it  fixes  a  damn  problem  during  index tuple insertion on
    CREATE TABLE into pg_attribute_relid_attnum_index.

    Anyway - this bug was really hard to find. During startup the
    relcache  reads  in  some  prepared  information  about index
    strategies from a file and then  reinitializes  the  function
    pointers  inside  the  scanKey data.  But for sake it assumed
    single attribute index tuples (hasn't that changed recently).
    Thus not all the strategies scanKey entries where initialized
    properly,  resulting  in  invalid  addresses  for  the  btree
    comparision functions.

    With  the  patch  at  the  end  the  regression  tests passed
    excellent except for the sanity_check that crashed at  vacuum
    and the misc test where the select unique1 from onek2 outputs
    the two rows in different order.

Jan
1998-08-28 03:36:31 +00:00
Bruce Momjian d394d06d7a Fix atttypmod alignment again, and re-enable ecpg. 1998-08-26 16:43:54 +00:00
Bruce Momjian 093beb3560 Make attalign match type alignment. 1998-08-26 05:22:58 +00:00
Marc G. Fournier 8e9d69d6ac From: Massimo Dal Zotto <dz@cs.unitn.it>
> sequence.patch
>
>       adds the missing setval command to sequences. Owner of sequences
>       can now set the last value to any value between min and max
>       without recreating the sequence. This is useful after loading
>       data from external files.
1998-08-25 21:25:46 +00:00
Bruce Momjian c0b01461db o note that now pg_database has a new attribuite "encoding" even
if MULTIBYTE is not enabled. So be sure to run initdb.

o these patches are made against the latest source tree (after
Bruce's massive patch, I think) BTW, I noticed that after running
regression, the oid field of pg_type seems disappeared.

	regression=> select oid from pg_type; ERROR:  attribute
	'oid' not found

this happens after the constraints test. This occures with/without
my patches. strange...

o pg_database_mb.h, pg_class_mb.h, pg_attribute_mb.h are no longer
used, and shoud be removed.

o GetDatabaseInfo() in utils/misc/database.c removed (actually in
#ifdef 0). seems nobody uses.

t-ishii@sra.co.jp
1998-08-24 01:14:24 +00:00
Bruce Momjian 8ae24a7566 update fixes. 1998-08-20 22:24:11 +00:00
Bruce Momjian 4a70002149 fix for index problem. 1998-08-20 22:07:46 +00:00
Bruce Momjian 31309423c9 Another vacuum fix. 1998-08-20 15:16:59 +00:00
Bruce Momjian 09e125084a Fix for vacuum introduced today. 1998-08-19 23:48:23 +00:00
Bruce Momjian a4d3695f28 Vacuum cleanup. 1998-08-19 22:01:18 +00:00
Bruce Momjian bd5aaca391 Vacuum fix. Was modifying cache. 1998-08-19 19:59:49 +00:00
Bruce Momjian 9c4eceb4e3 Fix for vacuum updating problem. 1998-08-19 15:47:36 +00:00
Bruce Momjian 7971539020 heap_fetch requires buffer pointer, must be released; heap_getnext
no longer returns buffer pointer, can be gotten from scan;
	descriptor; bootstrap can create multi-key indexes;
pg_procname index now is multi-key index; oidint2, oidint4, oidname
are gone (must be removed from regression tests); use System Cache
rather than sequential scan in many places; heap_modifytuple no
longer takes buffer parameter; remove unused buffer parameter in
a few other functions; oid8 is not index-able; remove some use of
single-character variable names; cleanup Buffer variables usage
and scan descriptor looping; cleaned up allocation and freeing of
tuples; 18k lines of diff;
1998-08-19 02:04:17 +00:00
Bruce Momjian 79c8d2e3a0 Change owner from oid to int4 type. 1998-08-11 18:28:49 +00:00
Bruce Momjian af5fde7491 Make large objects their own relkind type. Fix dups in pg_class_mb
files.  Fix sequence creation hack for relkind type.
1998-08-06 05:13:14 +00:00
Bruce Momjian d9be0ff432 MergeSort was sometimes called mergejoin and was confusing. Now
it is now only mergejoin.
1998-08-04 16:44:31 +00:00
Bruce Momjian 7db9ea5c1e EXPLAIN VERBOSE prints the plan, and now pretty-prints the plan to
the postmaster log file.
1998-08-04 15:00:28 +00:00
Bruce Momjian f71b671bd5 Make EXPLAIN show output more clearly. 1998-08-04 04:50:15 +00:00
Vadim B. Mikheev be8300b18f Use Snapshot in heap access methods. 1998-07-27 19:38:40 +00:00
Marc G. Fournier 5979d73841 From: t-ishii@sra.co.jp
As Bruce mentioned, this is due to the conflict among changes we made.
Included patches should fix the problem(I changed all MB to
MULTIBYTE). Please let me know if you have further problem.

P.S. I did not include pathces to configure and gram.c to save the
file size(configure.in and gram.y modified).
1998-07-26 04:31:41 +00:00
Marc G. Fournier bf00bbb0c4 I really hope that I haven't missed anything in this one...
From: t-ishii@sra.co.jp

Attached are patches to enhance the multi-byte support.  (patches are
against 7/18 snapshot)

* determine encoding at initdb/createdb rather than compile time

Now initdb/createdb has an option to specify the encoding. Also, I
modified the syntax of CREATE DATABASE to accept encoding option. See
README.mb for more details.

For this purpose I have added new column "encoding" to pg_database.
Also pg_attribute and pg_class are changed to catch up the
modification to pg_database.  Actually I haved added pg_database_mb.h,
pg_attribute_mb.h and pg_class_mb.h. These are used only when MB is
enabled. The reason having separate files is I couldn't find a way to
use ifdef or whatever in those files. I have to admit it looks
ugly. No way.

* support for PGCLIENTENCODING when issuing COPY command

commands/copy.c modified.

* support for SQL92 syntax "SET NAMES"

See gram.y.

* support for LATIN2-5
* add UNICODE regression test case
* new test suite for MB

New directory test/mb added.

* clean up source files

Basic idea is to have MB's own subdirectory for easier maintenance.
These are include/mb and backend/utils/mb.
1998-07-24 03:32:46 +00:00
Bruce Momjian 460b20a43f 1) Queries using the having clause on base tables should work well
now. Here some tested features, (examples included in the patch):

1.1) Subselects in the having clause 1.2) Double nested subselects
1.3) Subselects used in the where clause and in the having clause
     simultaneously 1.4) Union Selects using having 1.5) Indexes
on the base relations are used correctly 1.6) Unallowed Queries
are prevented (e.g. qualifications in the
     having clause that belong to the where clause) 1.7) Insert
into as select

2) Queries using the having clause on view relations also work
   but there are some restrictions:

2.1) Create View as Select ... Having ...; using base tables in
the select 2.1.1) The Query rewrite system:

2.1.2) Why are only simple queries allowed against a view from 2.1)
? 2.2) Select ... from testview1, testview2, ... having...; 3) Bug
in ExecMergeJoin ??


Regards Stefan
1998-07-19 05:49:26 +00:00
Bruce Momjian 7b2b779a2a Add auto-size to screen to \d? commands. Use UNION to show all
\d? results in one query. Add \d? field search feature.  Rename MB
to MULTIBYTE.
1998-07-18 18:34:34 +00:00
Bruce Momjian 2077ce123b Fix for COPY problem and atttypmod. 1998-07-15 18:53:40 +00:00
Bruce Momjian 9e964f90fb Fix explain for union and inheritance. Rename Append structure
members to be clearer.  Fix cost computation for these.
1998-07-15 14:54:39 +00:00
Bruce Momjian 683f399391 Change atttypmod from int16 to int32, for Thomas. 1998-07-12 21:29:40 +00:00
Bruce Momjian 2a8996f631 Print relation name before vacuum, results after vacuum. 1998-07-12 04:37:55 +00:00
Marc G. Fournier a0659e3e2c From: Tom Lane <tgl@sss.pgh.pa.us>
Making PQrequestCancel safe to call in a signal handler turned out to be
much easier than I feared.  So here are the diffs.

Some notes:
  * I modified the postmaster's packet "iodone" callback interface to allow
    the callback routine to return a continue-or-drop-connection return
    code; this was necessary to allow the connection to be closed after
    receiving a Cancel, rather than proceeding to launch a new backend...
    Being a neatnik, I also made the iodone proc have a typechecked
    parameter list.
  * I deleted all code I could find that had to do with OOB.
  * I made some edits to ensure that all signals mentioned in the code
    are referred to symbolically not by numbers ("SIGUSR2" not "2").
    I think Bruce may have already done at least some of the same edits;
    I hope that merging these patches is not too painful.
1998-07-09 03:29:11 +00:00
Bruce Momjian e747c58718 Fix for hang after postmaster restart. Add new proc_exit and
shmem_exit to replace exitpg().
1998-06-27 04:53:49 +00:00
Marc G. Fournier 5fdefbc7ef From: t-ishii@sra.co.jp
As mentioned around line 1153 in backend/commands/copy.c, the method
of array checking is not perfect.

test=> create table t1 (i text);
test=> insert into t1 values('{\\.}');
INSERT 2645600 1
test=> select * from t1;
i
-----
{\\.}
(2 rows)
test=> copy t1 to '/tmp/aaa';
test=> copy t1 from '/tmp/aaa';
ERROR:  CopyReadAttribute - end of record marker corrupted

Copy cannot read data produced by itself!
1998-06-19 11:40:46 +00:00
Bruce Momjian e0ca37bdf6 More mb patches. 1998-06-16 07:38:20 +00:00
Bruce Momjian cb7cbc16fa Hi, here are the patches to enhance existing MB handling. This time
I have implemented a framework of encoding translation between the
backend and the frontend. Also I have added a new variable setting
command:

SET CLIENT_ENCODING TO 'encoding';

Other features include:
	Latin1 support more 8 bit cleaness

See doc/README.mb for more details. Note that the pacthes are
against May 30 snapshot.

Tatsuo Ishii
1998-06-16 07:29:54 +00:00
Bruce Momjian 6bd323c6b3 Remove un-needed braces around single statements. 1998-06-15 19:30:31 +00:00
Bruce Momjian a576a60e3f Show backend status on ps command line. Remove unused args from
pg_exec_query().
1998-06-04 17:26:49 +00:00
Thomas G. Lockhart de75f9ef49 Change parameters to func_error(). 1998-05-09 23:43:45 +00:00
Bruce Momjian edbd51395c What I've done:
1. Rewritten libpq to allow asynchronous clients.

2. Implemented client side of cancel protocol in library,
   and patched psql.c to send a cancel request upon SIGINT.  The
   backend doesn't notice it yet :-(

3. Implemented 'Z' protocol message addition and renaming of
   copy in/out start messages.  These are implemented conditionally,
   ie, the client protocol version is checked; so the code should
   still work with 1.0 clients.

4. Revised protocol and libpq sgml documents (don't have an SGML
   compiler, though, so there may be some markup glitches here).


What remains to be done:

1. Implement addition of atttypmod field to RowDescriptor messages.
   The client-side code is there but ifdef'd out.  I have no idea
   what to change on the backend side.  The field should be sent
   only if protocol >= 2.0, of course.

2. Implement backend response to cancel requests received as OOB
   messages.  (This prolly need not be conditional on protocol
   version; just do it if you get SIGURG.)

3. Update libpq.3.  (I'm hoping this can be generated mechanically
   from libpq.sgml... if not, will do it by hand.)  Is there any
   other doco to fix?

4. Update non-libpq interfaces as necessary.  I patched libpgtcl
   so that it would compile, but haven't tested it.  Dunno what
   needs to be done with the other interfaces.

Have at it!

Tom Lane
1998-05-06 23:51:16 +00:00
Marc G. Fournier 5e202d8586 show the index used in an explain
From: Zeugswetter Andreas SARZ <Andreas.Zeugswetter@telecom.at>
1998-04-27 16:57:09 +00:00
Bruce Momjian 09baa3cc81 This patch...
1. Removes the unnecessary "#define AbcRegProcedure 123"'s from
pg_proc.h.

2. Changes those #defines to use the names already defined in
fmgr.h.

3. Forces the make of fmgr.h in backend/Makefile instead of having
it
   made as a dependency in access/common/Makefile  *hack*hack*hack*

4. Rearranged the #includes to a less helter-skelter arrangement,
also
    changing <file.h> to "file.h" to signify a non-system header.

5. Removed "pg_proc.h" from files where its only purpose was for
the
   #defines removed in item #1.

6. Added "fmgr.h" to each file changed for completeness sake.

Turns out that #6 was not necessary for some files because fmgr.h
was being included in a roundabout way SIX levels deep by the first
include.

"access/genam.h"
 ->"access/relscan.h"
   ->"utils/rel.h"
     ->"access/strat.h"
       ->"access/skey.h"
	 ->"fmgr.h"

So adding fmgr.h really didn't add anything to the compile, hopefully
just made it clearer to the programmer.

S Darren.
1998-04-27 04:08:07 +00:00
Bruce Momjian 0d203b745d Re-apply Darren's char2-16 removal code. 1998-04-26 04:12:15 +00:00