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ALTER TABLE DROP COLUMN works. Patch by Christopher Kings-Lynne,

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code review by Tom Lane.  Remaining issues: functions that take or
return tuple types are likely to break if one drops (or adds!)
a column in the table defining the type.  Need to think about what
to do here.

Along the way: some code review for recent COPY changes; mark system
columns attnotnull = true where appropriate, per discussion a month ago.
This commit is contained in:
Tom Lane
2002-08-02 18:15:10 +00:00
parent 5e6528adf7
commit 38bb77a5d1
44 changed files with 1823 additions and 891 deletions
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6
src/include/utils/syscache.h
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@@ -9,7 +9,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: syscache.h,v 1.51 2002/07/25 10:07:13 ishii Exp $
* $Id: syscache.h,v 1.52 2002/08/02 18:15:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -78,6 +78,10 @@ extern bool SearchSysCacheExists(int cacheId,
extern Oid GetSysCacheOid(int cacheId,
Datum key1, Datum key2, Datum key3, Datum key4);
extern HeapTuple SearchSysCacheAttName(Oid relid, const char *attname);
extern HeapTuple SearchSysCacheCopyAttName(Oid relid, const char *attname);
extern bool SearchSysCacheExistsAttName(Oid relid, const char *attname);
extern Datum SysCacheGetAttr(int cacheId, HeapTuple tup,
AttrNumber attributeNumber, bool *isNull);