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| author | Marc G. Fournier <scrappy@hub.org> | 1996-11-13 20:56:15 +0000 |
|---|---|---|
| committer | Marc G. Fournier <scrappy@hub.org> | 1996-11-13 20:56:15 +0000 |
| commit | 07a65b22554d54455de5bc791a48fb0542f48791 (patch) | |
| tree | 8320f9bb483ac60e34af929036a1a5a36c19d827 /src/include/access/nbtree.h | |
| parent | 0cec8fe26c4c76bcc72b78c194a1aa026748c6dc (diff) | |
| download | postgresql-07a65b22554d54455de5bc791a48fb0542f48791.tar.gz postgresql-07a65b22554d54455de5bc791a48fb0542f48791.zip | |
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.
Diffstat (limited to 'src/include/access/nbtree.h')
| -rw-r--r-- | src/include/access/nbtree.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/include/access/nbtree.h b/src/include/access/nbtree.h index 685546f827f..c17ce47813c 100644 --- a/src/include/access/nbtree.h +++ b/src/include/access/nbtree.h @@ -6,7 +6,7 @@ * * Copyright (c) 1994, Regents of the University of California * - * $Id: nbtree.h,v 1.3 1996/11/05 10:37:08 scrappy Exp $ + * $Id: nbtree.h,v 1.4 1996/11/13 20:50:32 scrappy Exp $ * *------------------------------------------------------------------------- */ @@ -170,7 +170,10 @@ typedef BTStackData *BTStack; /* * prototypes for functions in nbtinsert.c */ -extern InsertIndexResult _bt_doinsert(Relation rel, BTItem btitem); +extern InsertIndexResult _bt_doinsert(Relation rel, BTItem btitem, + bool index_is_unique, bool is_update); + + /* default is to allow duplicates */ extern bool _bt_itemcmp(Relation rel, Size keysz, BTItem item1, BTItem item2, StrategyNumber strat); @@ -200,7 +203,7 @@ extern void btbuild(Relation heap, Relation index, int natts, AttrNumber *attnum, IndexStrategy istrat, uint16 pcount, Datum *params, FuncIndexInfo *finfo, PredInfo *predInfo); extern InsertIndexResult btinsert(Relation rel, Datum *datum, char *nulls, - ItemPointer ht_ctid); + ItemPointer ht_ctid, bool is_update); extern char *btgettuple(IndexScanDesc scan, ScanDirection dir); extern char *btbeginscan(Relation rel, bool fromEnd, uint16 keysz, ScanKey scankey); @@ -237,6 +240,7 @@ extern OffsetNumber _bt_binsrch(Relation rel, Buffer buf, int keysz, extern RetrieveIndexResult _bt_next(IndexScanDesc scan, ScanDirection dir); extern RetrieveIndexResult _bt_first(IndexScanDesc scan, ScanDirection dir); extern bool _bt_step(IndexScanDesc scan, Buffer *bufP, ScanDirection dir); +extern int _bt_compare(Relation rel, TupleDesc itupdesc, Page page, int keysz, ScanKey scankey, OffsetNumber offnum); /* * prototypes for functions in nbtstrat.c |