diff options
Diffstat (limited to 'src/include/c.h')
| -rw-r--r-- | src/include/c.h | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/src/include/c.h b/src/include/c.h index 58fe0f9f9a1..ebed0ab9454 100644 --- a/src/include/c.h +++ b/src/include/c.h @@ -12,7 +12,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/c.h,v 1.180 2005/02/22 04:41:51 momjian Exp $ + * $PostgreSQL: pgsql/src/include/c.h,v 1.181 2005/03/29 00:17:16 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -428,11 +428,36 @@ typedef struct varlena BpChar; /* blank-padded char, ie SQL char(n) */ typedef struct varlena VarChar; /* var-length char, ie SQL varchar(n) */ /* - * Fixed-length array types (these are not varlena's!) + * Specialized array types. These are physically laid out just the same + * as regular arrays (so that the regular array subscripting code works + * with them). They exist as distinct types mostly for historical reasons: + * they have nonstandard I/O behavior which we don't want to change for fear + * of breaking applications that look at the system catalogs. There is also + * an implementation issue for oidvector: it's part of the primary key for + * pg_proc, and we can't use the normal btree array support routines for that + * without circularity. */ +typedef struct +{ + int32 size; /* these fields must match ArrayType! */ + int ndim; + int flags; + Oid elemtype; + int dim1; + int lbound1; + int2 values[1]; /* VARIABLE LENGTH ARRAY */ +} int2vector; /* VARIABLE LENGTH STRUCT */ -typedef int2 int2vector[INDEX_MAX_KEYS]; -typedef Oid oidvector[INDEX_MAX_KEYS]; +typedef struct +{ + int32 size; /* these fields must match ArrayType! */ + int ndim; + int flags; + Oid elemtype; + int dim1; + int lbound1; + Oid values[1]; /* VARIABLE LENGTH ARRAY */ +} oidvector; /* VARIABLE LENGTH STRUCT */ /* * We want NameData to have length NAMEDATALEN and int alignment, |