postgres

Commit Graph

Author	SHA1	Message	Date
Teodor Sigaev	f2c064afcb	Cleanup vectors of GISTENTRY and eliminate problem with 64-bit strict-aligned boxes. Change interface to user-defined GiST support methods union and picksplit. Now instead of bytea struct it used special GistEntryVector structure.	22 years ago
Tom Lane	5390e284db	Remove broken (and unnecessary) definition of operator <> for _int4 datatype; the generic array comparators added in 7.4 supersede this. Per report and patch from Korea PostgreSQL Users' Group.	22 years ago
Bruce Momjian	47d5c3d5e7	Changes: 1 intarray: bugfix for int[]-int[] operation 2 intarray: split _int.c to several files (_int.c now is unused) 3 ntarray (gist__intbig_ops opclass): use special type for index storage 4 ltree (gist__ltree_ops opclass), intarray (gist__intbig_ops): optimize GiST's penalty and picksplit interface functions, now use Hemming distance. Teodor Sigaev	23 years ago
Tom Lane	f85f43dfb5	Backend support for autocommit removed, per recent discussions. The only remnant of this failed experiment is that the server will take SET AUTOCOMMIT TO ON. Still TODO: provide some client-side autocommit logic in libpq.	23 years ago
Bruce Momjian	aa4c702eac	Update /contrib for "autocommit TO 'on'". Create objects in public schema. Make spacing/capitalization consistent. Remove transaction block use for object creation. Remove unneeded function GRANTs.	24 years ago
Tom Lane	b663f3443b	Add a bunch of pseudo-types to replace the behavior formerly associated with OPAQUE, as per recent pghackers discussion. I still want to do some more work on the 'cstring' pseudo-type, but I'm going to commit the bulk of the changes now before the tree starts shifting under me ...	24 years ago
Bruce Momjian	181ca96e7a	August 6, 2002 1. Reworked patch from Andrey Oktyabrski (ano@spider.ru) with functions: icount, sort, sort_asc, uniq, idx, subarray operations: #, +, -, \|, & FUNCTIONS: int icount(int[]) - the number of elements in intarray int[] sort(int[], 'asc' \| 'desc') - sort intarray int[] sort(int[]) - sort in ascending order int[] sort_asc(int[]),sort_desc(int[]) - shortcuts for sort int[] uniq(int[]) - returns unique elements int idx(int[], int item) - returns index of first intarray matching element to item, or '0' if matching failed. int[] subarray(int[],int START [, int LEN]) - returns part of intarray starting from element number START (from 1) and length LEN. OPERATIONS: int[] && int[] - overlap - returns TRUE if arrays has at least one common elements. int[] @ int[] - contains - returns TRUE if left array contains right array int[] ~ int[] - contained - returns TRUE if left array is contained in right array # int[] - return the number of elements in array int[] + int - push element to array ( add to end of array) int[] + int[] - merge of arrays (right array added to the end of left one) int[] - int - remove entries matched by right argument from array int[] - int[] - remove left array from right int[] \| int - returns intarray - union of arguments int[] \| int[] - returns intarray as a union of two arrays int[] & int[] - returns intersection of arrays Oleg Bartunov	24 years ago
Tom Lane	ea4686e3e1	Implement CREATE/DROP OPERATOR CLASS. Work still remains: need more documentation (xindex.sgml should be rewritten), need to teach pg_dump about it, need to update contrib modules that currently build pg_opclass entries by hand. Original patch by Bill Studenmund, grammar adjustments and general update for 7.3 by Tom Lane.	24 years ago
Bruce Momjian	74a8af099f	Please apply attached patch to contrib/intarray (7.2, 7.3). Fixed bug with '=' operator for gist__int_ops and define '=' operator for gist__intbig_ops opclass. Now '=' operator is consistent with standard 'array' type. Thanks Achilleus Mantzios for bug report and suggestion. Oleg Bartunov	24 years ago
Tom Lane	27a54ae282	Opclasses live in namespaces. I also took the opportunity to create an 'opclass owner' column in pg_opclass. Nothing is done with it at present, but since there are plans to invent a CREATE OPERATOR CLASS command soon, we'll probably want DROP OPERATOR CLASS too, which suggests that a notion of ownership would be a good idea.	24 years ago
Tom Lane	56f5dc9078	Remove bogus pg_amop insertion commands, per discussion of 25-Oct. No change in results of script, but perhaps less confusion for people reading it.	24 years ago
Tom Lane	14b0da2ac3	Changes: 1. gist__int_ops is now without lossy 2. added sort entry in picksplit Oleg Bartunov	25 years ago
Bruce Momjian	484a0fa454	please apply attached patch to current CVS. Changes: 1. Added support for boolean queries (indexable operator @@, looks like a @@ '1\|(2&3)' 2. Some code cleanup and optimization Regards, Oleg	25 years ago
Tom Lane	a54075a6d6	Update GiST for new pg_opclass arrangement (finally a clean solution for haskeytype). Update GiST contrib modules too. Add linear-time split algorithm for R-tree GiST opclass. From Oleg Bartunov and Teodor Sigaev.	25 years ago
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.	25 years ago
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.	25 years ago
Bruce Momjian	13923be7c8	1. null-safe interface to GiST (as proposed in http://fts.postgresql.org/db/mw/msg.html?mid=1028327) 2. support for 'pass-by-value' arguments - to test this we used special opclass for int4 with values in range [0-2^15] More testing will be done after resolving problem with index_formtuple and implementation of B-tree using GiST 3. small patch to contrib modules (seg,cube,rtree_gist,intarray) - mark functions as 'isstrict' where needed. Oleg Bartunov	25 years ago
Bruce Momjian	4bcb80a3e3	Update contrib intarray to Jan 25 version.	25 years ago
Marc G. Fournier	1db943b3ca	commit Oleg and Teodor's RD-tree implementation ... this provides the	25 years ago

19 Commits (15516c5f0b8c8209e23f36aa6e204e21bea19e6c)