pghackers proposal of 8-Nov. All the existing cross-type comparison
operators (int2/int4/int8 and float4/float8) have appropriate support.
The original proposal of storing the right-hand-side datatype as part of
the primary key for pg_amop and pg_amproc got modified a bit in the event;
it is easier to store zero as the 'default' case and only store a nonzero
when the operator is actually cross-type. Along the way, remove the
long-since-defunct bigbox_ops operator class.
Remove the 'strategy map' code, which was a large amount of mechanism
that no longer had any use except reverse-mapping from procedure OID to
strategy number. Passing the strategy number to the index AM in the
first place is simpler and faster.
This is a preliminary step in planned support for cross-datatype index
operations. I'm committing it now since the ScanKeyEntryInitialize()
API change touches quite a lot of files, and I want to commit those
changes before the tree drifts under me.
regression=# select 1 from tenk1 ta cross join tenk1 tb for update;
ERROR: no relation entry for relid 3
7.3 said "SELECT FOR UPDATE cannot be applied to a join", which was better
but still wrong, considering that 7.2 took the query just fine. Fix by
making transformForUpdate() ignore JOIN and other special RTE types,
rather than trying to mark them FOR UPDATE. The actual error message now
only appears if you explicitly name the join in FOR UPDATE.
process the command as though it were issued by the object owner.
This prevents creating weird scenarios in which the same privileges
may appear to flow from different sources, and ensures that a superuser
can in fact revoke all privileges if he wants to. In particular this
means that the regression tests work when run by a superuser other than
the original bootstrap userid. Per report from Larry Rosenman.
behavior of malloc and realloc when request size is 0. Fix escape
sequence recognizer so that only valid 3-digit octal sequences are
treated as escape sequences ... isdigit() is not a correct test.
rule split the query into one INSERT and one UPDATE where the UPDATE
then hit's the just created row without modifying the key fields again.
In this special case, the new key slipped in totally unchecked.
Jan
offered for completion only when the input-so-far is at least 'pg_'.
This seems to be the best compromise behavior emerging from yesterday's
discussion. While at it, refactor code to eliminate repetitive use of
nearly identical queries, which was exceedingly tedious to maintain.
Also const-ify code more thoroughly in hopes of moving constant data into
text segment, and remove unnecessary length limit on queries.
ACL array, and force languages to be treated as owned by the bootstrap
user ID. (pg_language should have a lanowner column, but until it does
this will have to do as a workaround.)
"schema." has been typed. This allows readline to complete subsequent
characters immediately if all relations in the target schema start with
the same prefix. This actually worked before, but I unintentionally
broke it a few days ago.
Also, make completion schema-aware for GRANT, REVOKE, VACUUM.
Make a LOT of fixes to syscat.source to:
* Set search_path properly (and reset it)
* Add schema name to all results
* Add schema name to ORDER BY first
* Make checks for user-defined objects match reality
* format_type all type names
* Respect attisdropped
* Change !~ to 'not like' since it's more standard
Christopher Kings-Lynne
0.0/0.0. That option appears to affect the regression test result as well.
The compiler documentation doesn't recommend -O4 for universal use, so
let's stick to the conservative -O (== -O2) by default.
subquery that didn't previously have one. We have traditionally made
the caller of ResolveNew responsible for updating the hasSubLinks flag
of the outermost query, but this fails to account for hasSubLinks in
subqueries. Fix ResolveNew to handle this. We might later want to
change the calling convention of ResolveNew so that it can fix the
outer query too, simplifying callers. But I went with the localized
fix for now. Per bug report from J Smith, 20-Oct-03.
to ensure any needed compiler support routines are included. This is
arguably appropriate on *every* gcc platform, but for the moment I'll take
the conservative approach of only doing it on a platform where it's
provably useful. Per complaint from Heiko Lehmann, 13-Feb-03, as well
as personal experience --- contrib/pgstattuple has never worked for me,
but it does now.
fully search-path-proof yet; also, element_types view did not work for
parameters and result types of functions, because it didn't generate
the object_name for the function the same way the data_type_privileges
view does. While at it, centralize dependencies on INDEX_MAX_KEYS/
FUNC_MAX_ARGS into a function returning setof int, so that it will be
easier to fix information_schema for nonstandard values of these
parameters.
Use pg_get_constraintdef instead of pg_constraint.consrc
Use UNION ALL instread of UNION
Make use of regclass type for getting OID of system catalogs
Add schema qualifications where necessary
Fix typos
of the entries used to be zero, which I think I had deliberately done in
the name of saving cycles during ANALYZE, but it was really a rather
foolish decision. Some of the more complex views in information_schema
were getting really bad plans for lack of statistics on the columns they
were joining over.
I'm not forcing an initdb for this, but I think there will be one soon
anyway to repair some bugs in the information_schema views.
memory say 'out of shared memory'; some were doing that and some just
said 'out of memory'. Also add a HINT about increasing max_locks_per_transaction
where relevant, per suggestion from Sean Chittenden. (The former change
does not break the strings freeze; the latter does, but I think it's
worth doing anyway.)
protocol, per report from Igor Shevchenko. NOTIFY thought it could
do its thing if transaction blockState is TBLOCK_DEFAULT, but in
reality it had better check the low-level transaction state is
TRANS_DEFAULT as well. Formerly it was not possible to wait for the
client in a state where the first is true and the second is not ...
but now we can have such a state. Minor cleanup in StartTransaction()
as well.
up by quotes or backslashes in words that are being matched to database
names (per gripe from Ian Barwick, though I didn't use his patch).
Also fix possible memory leakage if _complete_with_query isn't run to
completion (not clear if that can happen or not, but be safe).
be made, to avoid corner cases where max_connections ends up unreasonably
small because shared_buffers is hogging too much shmem space. Per pghackers
discussion about a week ago. Also, fix the copy-newlines problem in a
more robust way, by using COPY FROM filename instead of COPY FROM STDIN;
per a suggestion from Peter.
when the pg_class.relhassubclass value is already correct. This should
avoid most cases of the 'tuple concurrently updated' problem that
Robert Creager recently complained about. Also remove a bunch of dead
code in StoreCatalogInheritance() --- it was still computing the complete
list of direct and indirect inheritance ancestors, though that list has
not been needed since we got rid of the pg_ipl catalog.
one side of a binary operator is probably supposed to be the same type
as the other operand' will be applied for domain types. This worked
in 7.3 but was broken in 7.4 due to code rearrangements. Mea culpa.
a single LEFT JOIN query instead of firing the check trigger for each
row individually. Stephan Szabo, with some kibitzing from Tom Lane and
Jan Wieck.
before it is de-backslashed, not after. This allows the null string \N
to be reliably distinguished from the data value \N (which must be
represented as \\N). Per bug report from Manfred Koizar ... but it's
amazing this hasn't been reported before ...
Also, be consistent about encoding conversion for null string: the form
specified in the command is in the server encoding, but what is sent
to/from client must be in client encoding. This never worked quite
right before either.
will downcase the supplied field name unless it is double-quoted. Also,
upgrade the routine's handling of double quotes to match the backend,
in particular support doubled double quotes within quoted identifiers.
Per pgsql-interfaces discussion a couple weeks ago.
with required outer parentheses. Breakage seems to be leftover from
domain-constraint patches. This could be smarter about suppressing
extra parens, but at this stage of the release cycle I want certainty
not cuteness.
of function bodies is done at CREATE FUNCTION time. This is normally
true but can be set false to avoid problems with forward references,
wrong schema search path, etc. This is just the backend patch, still
need to adjust pg_dump to make use of it.
to make them comparable to what UpdateStats does in the same situation.
I'm not certain two instances of vac_update_relstats could run in
parallel for the same relation, but parallel invocations of vac_update_dbstats
do seem possible.
in the schema search path. Otherwise pg_dump doesn't correctly dump
scenarios where a custom opclass is created in 'public' and then used
by indexes in other schemas.
processing the request; this ensures that the request won't be taken
to cancel a subsequently-issued query. Race condition originally
noted by Oliver Jowett in the context of JDBC, but libpq has it too.
discussion on pgsql-hackers: in READ COMMITTED mode we just have to force
a QuerySnapshot update in the trigger, but in SERIALIZABLE mode we have
to run the scan under a current snapshot and then complain if any rows
would be updated/deleted that are not visible in the transaction snapshot.
invalid (has the wrong magic number) until the build is entirely
complete. This turns out to cost no additional writes in the normal
case, since we were rewriting the metapage at the end of the process
anyway. In normal scenarios there's no real gain in security, because
a failed index build would roll back the transaction leaving an unused
index file, but for rebuilding shared system indexes this seems to add
some useful protection.
Bruce Momjian
Tom Lane
Jan Wieck
Michael Meskes
Peter Eisentraut
Dave Cramer