Commit Graph

138 Commits

Author SHA1 Message Date
Tom Lane bff0422b6c Revise hash join and hash aggregation code to use the same datatype-
specific hash functions used by hash indexes, rather than the old
not-datatype-aware ComputeHashFunc routine.  This makes it safe to do
hash joining on several datatypes that previously couldn't use hashing.
The sets of datatypes that are hash indexable and hash joinable are now
exactly the same, whereas before each had some that weren't in the other.
2003-06-22 22:04:55 +00:00
Tom Lane f45df8c014 Cause CHAR(n) to TEXT or VARCHAR conversion to automatically strip trailing
blanks, in hopes of reducing the surprise factor for newbies.  Remove
redundant operators for VARCHAR (it depends wholly on TEXT operations now).
Clean up resolution of ambiguous operators/functions to avoid surprising
choices for domains: domains are treated as equivalent to their base types
and binary-coercibility is no longer considered a preference item when
choosing among multiple operators/functions.  IsBinaryCoercible now correctly
reflects the notion that you need *only* relabel the type to get from type
A to type B: that is, a domain is binary-coercible to its base type, but
not vice versa.  Various marginal cleanup, including merging the essentially
duplicate resolution code in parse_func.c and parse_oper.c.  Improve opr_sanity
regression test to understand about binary compatibility (using pg_cast),
and fix a couple of small errors in the catalogs revealed thereby.
Restructure "special operator" handling to fetch operators via index opclasses
rather than hardwiring assumptions about names (cleans up the pattern_ops
stuff a little).
2003-05-26 00:11:29 +00:00
Peter Eisentraut 2c0556068f Indexing support for pattern matching operations via separate operator
class when lc_collate is not C.
2003-05-15 15:50:21 +00:00
Bruce Momjian d84fe82230 Update copyright to 2002. 2002-06-20 20:29:54 +00:00
Bruce Momjian ea08e6cd55 New pgindent run with fixes suggested by Tom. Patch manually reviewed,
initdb/regression tests pass.
2001-11-05 17:46:40 +00:00
Bruce Momjian 6783b2372e Another pgindent run. Fixes enum indenting, and improves #endif
spacing.  Also adds space for one-line comments.
2001-10-28 06:26:15 +00:00
Bruce Momjian b81844b173 pgindent run on all C files. Java run to follow. initdb/regression
tests pass.
2001-10-25 05:50:21 +00:00
Thomas G. Lockhart 6f58115ddd Measure the current transaction time to milliseconds.
Define a new function, GetCurrentTransactionStartTimeUsec() to get the time
 to this precision.
Allow now() and timestamp 'now' to use this higher precision result so
 we now have fractional seconds in this "constant".
Add timestamp without time zone type.
Move previous timestamp type to timestamp with time zone.
Accept another ISO variant for date/time values: yyyy-mm-ddThh:mm:ss
 (note the "T" separating the day from hours information).
Remove 'current' from date/time types; convert to 'now' in input.
Separate time and timetz regression tests.
Separate timestamp and timestamptz regression test.
2001-09-28 08:09:14 +00:00
Tom Lane f933766ba7 Restructure pg_opclass, pg_amop, and pg_amproc per previous discussions in
pgsql-hackers.  pg_opclass now has a row for each opclass supported by each
index AM, not a row for each opclass name.  This allows pg_opclass to show
directly whether an AM supports an opclass, and furthermore makes it possible
to store additional information about an opclass that might be AM-dependent.
pg_opclass and pg_amop now store "lossy" and "haskeytype" information that we
previously expected the user to remember to provide in CREATE INDEX commands.
Lossiness is no longer an index-level property, but is associated with the
use of a particular operator in a particular index opclass.

Along the way, IndexSupportInitialize now uses the syscaches to retrieve
pg_amop and pg_amproc entries.  I find this reduces backend launch time by
about ten percent, at the cost of a couple more special cases in catcache.c's
IndexScanOK.

Initial work by Oleg Bartunov and Teodor Sigaev, further hacking by Tom Lane.

initdb forced.
2001-08-21 16:36:06 +00:00
Tom Lane 95f8901a96 Add comparison operators and btree indexing support for type bytea.
From Joe Conway.
2001-08-13 18:45:36 +00:00
Tom Lane bf56f0759b Make OIDs optional, per discussions in pghackers. WITH OIDS is still the
default, but OIDS are removed from many system catalogs that don't need them.
Some interesting side effects: TOAST pointers are 20 bytes not 32 now;
pg_description has a three-column key instead of one.

Bugs fixed in passing: BINARY cursors work again; pg_class.relhaspkey
has some usefulness; pg_dump dumps comments on indexes, rules, and
triggers in a valid order.

initdb forced.
2001-08-10 18:57:42 +00:00
Bruce Momjian 623bf843d2 Change Copyright from PostgreSQL, Inc to PostgreSQL Global Development Group. 2001-01-24 19:43:33 +00:00
Tom Lane 376784cf8a Repair erroneous use of hashvarlena() for MACADDR, which is not a
varlena type.  (I did not force initdb, but you won't see the fix
unless you do one.)  Also, make sure all index support operators and
functions are careful not to leak memory for toasted inputs; I had
missed some hash and rtree support ops on this point before.
2000-12-08 23:57:03 +00:00
Tom Lane b503cbe319 First pass at integrating BIT and BIT VARYING code from Adriaan Joubert.
Update functions to new-style fmgr, make BIT and VARBIT be binary-
equivalent, add entries to allow these types to be btree indexed,
correct a few bugs.  BIT/VARBIT are now toastable, too.
NOTE: initdb forced due to catalog updates.
2000-08-21 04:48:57 +00:00
Tom Lane 8f9fa0e143 Type lztext is toast.
(Sorry, couldn't help it...)

Removed type filename as well, since it's unused and probably useless.
INITDB FORCED, because pg_rewrite columns are now plain text again.
2000-07-30 22:14:09 +00:00
Tom Lane c590273fef Clean up bogosities in pg_opclass, pg_amop, pg_amproc. There are amproc
entries now for int8 and network hash indexes.  int24_ops and int42_ops
are gone.  pg_opclass no longer contains multiple entries claiming to be
the default opclass for the same datatype.  opr_sanity regress test
extended to catch errors like these in the future.
2000-06-19 03:55:01 +00:00
Thomas G. Lockhart 6456810078 Implement column aliases on views "CREATE VIEW name (collist)".
Implement TIME WITH TIME ZONE type (timetz internal type).
Remap length() for character strings to CHAR_LENGTH() for SQL92
 and to remove the ambiguity with geometric length() functions.
Keep length() for character strings for backward compatibility.
Shrink stored views by removing internal column name list from visible rte.
Implement min(), max() for time and timetz data types.
Implement conversion of TIME to INTERVAL.
Implement abs(), mod(), fac() for the int8 data type.
Rename some math functions to generic names:
 round(), sqrt(), cbrt(), pow(), etc.
Rename NUMERIC power() function to pow().
Fix int2 factorial to calculate result in int4.
Enhance the Oracle compatibility function translate() to work with string
 arguments (from Edwin Ramirez).
Modify pg_proc system table to remove OID holes.
2000-03-14 23:06:59 +00:00
Jan Wieck 75133d9a46 Reactivated LZTEXT data type and changed rule plan- and qual-strings
into lztext.

Jan
2000-02-27 12:02:34 +00:00
Bruce Momjian 7528fd2d52 Add btree indexing of boolean values
Don Baccus
2000-02-10 19:51:52 +00:00
Bruce Momjian 5c25d60244 Add:
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc

to all files copyright Regents of Berkeley.  Man, that's a lot of files.
2000-01-26 05:58:53 +00:00
Jan Wieck e3cec20ccd Removed LZTEXT datatype as discussed.
Jan
1999-12-28 13:40:53 +00:00
Bruce Momjian b7539d92f9 Fix indexing of cidr. 1999-12-08 11:37:38 +00:00
Jan Wieck 4069d48aa7 Added another single byte oriented decompressor, useful for
comparision functions.

Added all lztext comparision functions, operators and a default
operator class for nbtree on lztext.

Jan
1999-11-25 01:28:07 +00:00
Jan Wieck b5c4b77283 Added nbtree operator class for NUMERIC
Jan
1999-09-29 21:13:31 +00:00
Tom Lane f95538269f Remove a bunch of dead entries exposed by findoidjoins crosschecks.
Apparently, whatever these things used to link to got recycled into
something else ... but the dependent entries didn't.
1999-03-26 07:32:42 +00:00
Bruce Momjian 817a3e6d39 Enclosed below I have a patch to allow a btree index on the int8 type.
I would like some feedback on what the hash function for the int8 hash
function
in the ./backend/access/hash/hashfunc.c should return.

Also, could someone (maybe Tomas Lockhart?) look-over the patch and make
sure
the system table entries are correct?  I've tried to research them as
much as I
could, but some of them are still not clear to me.

Thanks,
-Ryan
1999-03-14 05:09:05 +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 2d69fd90b9 Integrate new IP type from Tom Ivar Helbekkmo. 1998-10-03 05:41:01 +00:00
Bruce Momjian fa1a8d6a97 OK, folks, here is the pgindent output. 1998-09-01 04:40:42 +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 22cc0e1645 Remove NOBTREE defines, and make findoidlinks handle regproc. 1998-08-11 05:32:46 +00:00
Thomas G. Lockhart 2c98143681 Add datetime and timespan hash index declarations. Use float8 for both;
certainly OK for datetime since it is a float8 and should be OK for
 timespan since the first field within timespan is a float8.
Use float8 hash function for time type (rather than char8).
1997-11-30 22:58:07 +00:00
Bruce Momjian 319dbfa736 Another PGINDENT run that changes variable indenting and case label indenting. Also static variable indenting. 1997-09-08 02:41:22 +00:00
Bruce Momjian 1ccd423235 Massive commit to run PGINDENT on all *.c and *.h files. 1997-09-07 05:04:48 +00:00
Thomas G. Lockhart 7c243f83e8 Add comparision routines and catalog entries to support indices on
datetime and timespan.
1997-09-04 18:43:59 +00:00
Marc G. Fournier 07a65b2255 Commit of a *MAJOR* patch from Dan McGuirk <djm@indirect.com>
Changes:

        * Unique index capability works using the syntax 'create unique
          index'.

        * Duplicate OID's in the system tables are removed.  I put
          little scripts called 'duplicate_oids' and 'find_oid' in
          include/catalog that help to find and remove duplicate OID's.
          I also moved 'unused_oids' from backend/catalog to
          include/catalog, since it has to be in the same directory
          as the include files in order to work.

        * The backend tries converting the name of a function or aggregate
          to all lowercase if the original name given doesn't work (mostly
          for compatibility with ODBC).

        * You can 'SELECT NULL' to your heart's content.

        * I put my _bt_updateitem fix in instead, which uses
          _bt_insertonpg so that even if the new key is so big that
          the page has to be split, everything still works.

        * All literal references to system catalog OID's have been
          replaced with references to define'd constants from the catalog
          header files.

        * I added a couple of node copy functions.  I think this was a
          preliminary attempt to get rules to work.
1996-11-13 20:56:15 +00:00
Marc G. Fournier 99412aef23 remove:
#include "postgres.h"
	#include "c.h"
1996-10-31 09:51:30 +00:00
Marc G. Fournier 1054097464 More cleanups of the include files
- centralizing to simplify the -I's required to compile
1996-08-28 01:59:28 +00:00