Commit Graph

20310 Commits

Author SHA1 Message Date
Michael Meskes
2d5d691d15 - Fixed memory leak in ecpglib by adding some missing free() commands.
- Added patch by Gavin Scott <gavin@planetacetech.com> for Intel 64bit hardware.
2005-06-02 12:35:11 +00:00
Tom Lane
21fda22ec4 Change CRCs in WAL records from 64bit to 32bit for performance reasons.
Instead of a separate CRC on each backup block, include backup blocks
in their parent WAL record's CRC; this is important to ensure that the
backup block really goes with the WAL record, ie there was not a page
tear right at the start of the backup block.  Implement a simple form
of compression of backup blocks: drop any run of zeroes starting at
pd_lower, so as not to store the unused 'hole' that commonly exists in
PG heap and index pages.  Tweak PageRepairFragmentation and related
routines to ensure they keep the unused space zeroed, so that the above
compression method remains effective.  All per recent discussions.
2005-06-02 05:55:29 +00:00
Bruce Momjian
c196c7ae8b Completed:
< 	o Allow COPY to understand \x as a hex byte
> 	o -Allow COPY to understand \x as a hex byte
2005-06-02 01:27:58 +00:00
Bruce Momjian
b51366396b Add support for \x hex strings in psql variables. 2005-06-02 01:23:48 +00:00
Bruce Momjian
65537ac1b4 Add support for \x hex escapes in backend strings. Octal was already
supported.  This follows the C standard escapes.
2005-06-02 01:23:08 +00:00
Bruce Momjian
202e6e73e6 Add support for \x hex escapes in COPY.
Sergey Ten
2005-06-02 01:21:22 +00:00
Bruce Momjian
b6e5c4ad0a Fix log_statement to properly recognize SELECT INTO and CREATE TABLE AS
and DDL statements.

Backpatch fix to 8.0.X.

Per report from Murthy Kambhampaty
2005-06-01 23:27:03 +00:00
Tom Lane
1e85fa2008 patternsel() was improperly stripping RelabelType from the derived
expressions it constructed, causing scalarineqsel to become confused
if the underlying variable was of a domain type.  Per report from
Kevin Grittner.
2005-06-01 17:05:11 +00:00
Teodor Sigaev
7148de1fa8 Prevent to divide by zero and range out of 0..1 2005-06-01 11:45:03 +00:00
Tom Lane
a91fa39028 Add test to WAL replay to verify that xl_prev points back to the previous
WAL record; this is necessary to be sure we recognize stale WAL records
when a WAL page was only partially written during a system crash.
2005-05-31 19:10:28 +00:00
Bruce Momjian
5b3625f1b7 Tab cleanup for SGML.
Robert Treat
2005-05-31 14:48:47 +00:00
Tom Lane
982888bddc Fix information_schema for OUT and INOUT parameters. 2005-05-31 03:36:24 +00:00
Tom Lane
6dfe64ee57 Teach ruleutils to drill down into RECORD-type Vars in the same way
that the parser now can, so that it can reverse-list cases involving
FieldSelect from a RECORD Var.
2005-05-31 03:03:59 +00:00
Tom Lane
83b72ee286 ParseComplexProjection should make use of expandRecordVariable so that
it can handle cases like (foo.x).y where foo is a subquery and x is
a function-returning-RECORD RTE in that subquery.
2005-05-31 01:03:23 +00:00
Tom Lane
12a323b7a8 Change relblocknumber field of pg_buffercache view from numeric to int8
for efficiency's sake.  Mark Kirkwood.
2005-05-31 00:07:47 +00:00
Tom Lane
978129f28e Document get_call_result_type() and friends; mark TypeGetTupleDesc()
and RelationNameGetTupleDesc() as deprecated; remove uses of the
latter in the contrib library.  Along the way, clean up crosstab()
code and documentation a little.
2005-05-30 23:09:07 +00:00
Bruce Momjian
b215fae891 Move to ALTER section:
< * Prevent child tables from altering constraints like CHECK that were
<   inherited from the parent table
470a469,471
>
> 	o Prevent child tables from altering constraints like CHECK that were
> 	  inherited from the parent table
2005-05-30 21:12:23 +00:00
Bruce Momjian
09439e212e Add:
> * Prevent child tables from altering constraints like CHECK that were
>   inherited from the parent table
2005-05-30 21:08:27 +00:00
Bruce Momjian
25146d3c29 Add support for NUMERIC ^ NUMERIC based on power(numeric, numeric). 2005-05-30 20:59:17 +00:00
Bruce Momjian
a54c21a59c Wording improvement (may -> can) 2005-05-30 19:32:44 +00:00
Tom Lane
ac25dbd84b Add support for FUNCTION RTEs to build_physical_tlist(), so that the
physical-tlist optimization can be applied to FunctionScan nodes as well
as regular tables and SubqueryScans.
2005-05-30 18:55:49 +00:00
Bruce Momjian
3e8dbc846c Support only octal for psql PROMPT values, rather than the confusing
hex/decimal/octal.  Documentation already updated.

BACKWARD COMPATIBLE CHANGE
2005-05-30 18:28:11 +00:00
Bruce Momjian
33294d57c7 Use {xqoctesc} lex macro now that \ddd is standard. 2005-05-30 16:48:47 +00:00
Bruce Momjian
a2cce84349 Update psql docs for recent octal-only string behavior. 2005-05-30 15:24:23 +00:00
Bruce Momjian
f13c132072 Have psql escape bytes in strings for variables follow the backend
conventions of only allowing octal, like \045.  Remove support for
\decimal, \0octal, and \0xhex which matches the strtol() function but
didn't make sense with backslashes.

These now return the same character:

	test=> \set x '\54'
	test=> \echo :x
	,
	test=> \set x '\054'
	test=> \echo :x
	,

THIS IS A BACKWARD COMPATIBILITY CHANGE.
2005-05-30 14:50:35 +00:00
Bruce Momjian
6616e23264 Add missing <P>. 2005-05-30 13:11:06 +00:00
Neil Conway
adfeef55cb When enqueueing after-row triggers for updates of a table with a foreign
key, compare the new and old row versions. If the foreign key column has
not changed, we needn't enqueue the trigger, since the update cannot
violate the foreign key. This optimization was previously applied in the
RI trigger function, but it is more efficient to avoid firing the trigger
altogether. Per recent discussion on pgsql-hackers.

Also add a regression test for some unintuitive foreign key behavior, and
refactor some code that deals with the OIDs of the various RI trigger
functions.
2005-05-30 07:20:59 +00:00
Neil Conway
f99b75b0a0 Create separate ON INSERT and ON UPDATE triggers on tables with foreign
keys, rather than a single trigger for both events. This should not change
functionality, but it is more consistent: previously, there were trigger
functions for both "check_insert" and "check_update", but the former was
used for both events.

Bump catalog version number (not strictly necessary, but best to be
cautious).
2005-05-30 06:52:38 +00:00
Tom Lane
0832fb74df Fix longstanding oversight in ruleutils.c: it doesn't regurgitate
a FOR UPDATE clause, if one is present.
2005-05-30 01:57:27 +00:00
Tom Lane
cfd9be939e Change the UNKNOWN type to have an internal representation matching
cstring, rather than text, so as to eliminate useless conversions
inside the parser.  Per recent discussion.
2005-05-30 01:20:50 +00:00
Tom Lane
c8f81df41b Skip eval_const_expressions when the query is such that the expression
would be evaluated only once anyway (ie, it's just a SELECT with no
FROM or an INSERT ... VALUES).  The planner can't do it any faster than
the executor, so no point in an extra copying of the expression tree.
2005-05-30 01:04:44 +00:00
Tom Lane
03a542ba63 Avoid unnecessary fetch from pg_shadow in the normal case in
pg_class_aclmask().  We only need to do this when we have to check
pg_shadow.usecatupd, and that's not relevant unless the target table
is a system catalog.  So we can usually avoid one syscache lookup.
2005-05-29 23:38:05 +00:00
Tom Lane
140b078d2a Improve LockAcquire API per my recent proposal. All error conditions
are now reported via elog, eliminating the need to test the result code
at most call sites.  Make it possible for the caller to distinguish a
freshly acquired lock from one already held in the current transaction.
Use that capability to avoid redundant AcceptInvalidationMessages() calls
in LockRelation().
2005-05-29 22:45:02 +00:00
Tom Lane
299c442077 Make superuser.c maintain a simple one-entry cache holding the superuser
status of the most recently queried userid.  Since the common pattern is
many successive queries about the same user (ie, the current user) this
can save a lot of syscache probes.
2005-05-29 20:38:06 +00:00
Tom Lane
db86f29617 Marginal hack to save a little bit of time in bpcharin() when typmod is -1,
which is a common case.
2005-05-29 20:15:59 +00:00
Tom Lane
7cac50271d Avoid unnecessary call of rangeTableEntry_used() for the result relation
of a query.
2005-05-29 18:34:57 +00:00
Tom Lane
d66daabec9 Remove typeidIsValid() checks in can_coerce_type(). These checks
were pretty expensive and I believe the case they were put in to
defend against can no longer arise, now that we have dependency checks
to prevent deletion of a type entry that is still referenced.  Certainly
the example given in the CVS log entry can't happen anymore.
Since this was the only use of typeidIsValid(), remove the routine too.
2005-05-29 18:24:14 +00:00
Tom Lane
bbc048319f expandRTE and get_rte_attribute_type mistakenly always imputed typmod -1
to columns of an RTE that was a function returning RECORD with a column
definition list.  Apparently no one has tried to use non-default typmod
with a function returning RECORD before.
2005-05-29 17:10:23 +00:00
Tom Lane
e92a88272e Modify hash_search() API to prevent future occurrences of the error
spotted by Qingqing Zhou.  The HASH_ENTER action now automatically
fails with elog(ERROR) on out-of-memory --- which incidentally lets
us eliminate duplicate error checks in quite a bunch of places.  If
you really need the old return-NULL-on-out-of-memory behavior, you
can ask for HASH_ENTER_NULL.  But there is now an Assert in that path
checking that you aren't hoping to get that behavior in a palloc-based
hash table.
Along the way, remove the old HASH_FIND_SAVE/HASH_REMOVE_SAVED actions,
which were not being used anywhere anymore, and were surely too ugly
and unsafe to want to see revived again.
2005-05-29 04:23:07 +00:00
Bruce Momjian
ecd70d7526 Add reference to libpq environment variables for client applications. 2005-05-29 03:32:18 +00:00
Tom Lane
f8a051604f Bgwriter should PANIC if it runs out of memory for pending-fsyncs
hash table.  This is a pretty unlikely scenario, since the table
should be tiny, but we can't guarantee continued correct operation
if it does occur.  Spotted by Qingqing Zhou.
2005-05-28 17:21:32 +00:00
Tom Lane
6d9ee03148 get_expr_result_type has to be prepared to pull type information
from a RECORD Const node, because that's what it may be faced with
after constant-folding of a function returning RECORD.  Per example
from Michael Fuhr.
2005-05-28 05:10:47 +00:00
Bruce Momjian
70f320495f Remove:
<
< * Add XML output to pg_dump and COPY
<
<   We already allow XML to be stored in the database, and XPath queries
<   can be used on that data using /contrib/xml2. It also supports XSLT
<   transformations.
2005-05-28 04:12:13 +00:00
Tom Lane
32e8fc4a28 Arrange to cache fmgr lookup information for an index's access method
routines in the index's relcache entry, instead of doing a fresh fmgr_info
on every index access.  We were already doing this for the index's opclass
support functions; not sure why we didn't think to do it for the AM
functions too.  This supersedes the former method of caching (only)
amgettuple in indexscan scan descriptors; it's an improvement because the
function lookup can be amortized across multiple statements instead of
being repeated for each statement.  Even though lookup for builtin
functions is pretty cheap, this seems to drop a percent or two off some
simple benchmarks.
2005-05-27 23:31:21 +00:00
Bruce Momjian
dd67cf365a Update Farsi FAQ.
Mahmoud Taghizadeh
2005-05-27 22:09:42 +00:00
Bruce Momjian
42319310dc Add:
> * Consider sorting hash buckets so entries can be found using a binary
>   search, rather than a linear scan
> * In hash indexes, consider storing the hash value with or instead
>   of the key itself
2005-05-27 22:07:26 +00:00
Bruce Momjian
770156e157 Add:
> * Add the features of packages
> 	o  Make private objects accessable only to objects in the same schema
> 	o  Allow current_schema.objname to access current schema objects
> 	o  Add session variables
> 	o  Allow nested schemas
2005-05-27 22:01:18 +00:00
Bruce Momjian
d4b50caf25 Display only 9 subsecond digits instead of 10 for time values, for
consistency and to prevent rounding for days < 30.  Also round off all
trailing zeros, rather than leaving an even number of digits.
2005-05-27 21:31:23 +00:00
Bruce Momjian
5dafb69e17 Re-order 'else' clause for clarity. 2005-05-27 18:33:30 +00:00
Tom Lane
b4176e9f4c Clean up bogus checking of date and numeric fields in DBF files,
per report from Boris van Schooten.
2005-05-27 15:44:04 +00:00