diff options
Diffstat (limited to 'src/include/access/relscan.h')
| -rw-r--r-- | src/include/access/relscan.h | 18 |
1 files changed, 3 insertions, 15 deletions
diff --git a/src/include/access/relscan.h b/src/include/access/relscan.h index 09e977c065..e7c409ed0e 100644 --- a/src/include/access/relscan.h +++ b/src/include/access/relscan.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/access/relscan.h,v 1.44 2006/03/05 15:58:53 momjian Exp $ + * $PostgreSQL: pgsql/src/include/access/relscan.h,v 1.45 2006/05/07 01:21:30 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -67,12 +67,9 @@ typedef struct IndexScanDescData bool kill_prior_tuple; /* last-returned tuple is dead */ bool ignore_killed_tuples; /* do not return killed entries */ - /* set by index AM if scan keys satisfy index's uniqueness constraint */ - bool keys_are_unique; - - /* scan current state */ - bool got_tuple; /* true after successful index_getnext */ + /* index access method's private state */ void *opaque; /* access-method-specific info */ + /* these fields are used by some but not all AMs: */ ItemPointerData currentItemData; /* current index pointer */ ItemPointerData currentMarkData; /* marked position, if any */ @@ -85,15 +82,6 @@ typedef struct IndexScanDescData Buffer xs_cbuf; /* current heap buffer in scan, if any */ /* NB: if xs_cbuf is not InvalidBuffer, we hold a pin on that buffer */ - /* - * If keys_are_unique and got_tuple are both true, we stop calling the - * index AM; it is then necessary for index_getnext to keep track of the - * logical scan position for itself. It does that using unique_tuple_pos: - * -1 = before row, 0 = on row, +1 = after row. - */ - int unique_tuple_pos; /* logical position */ - int unique_tuple_mark; /* logical marked position */ - PgStat_Info xs_pgstat_info; /* statistics collector hook */ } IndexScanDescData; |