diff options
Diffstat (limited to 'src/include/nodes/plannodes.h')
| -rw-r--r-- | src/include/nodes/plannodes.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/include/nodes/plannodes.h b/src/include/nodes/plannodes.h index e9c994e4f27..68c95d5cf8a 100644 --- a/src/include/nodes/plannodes.h +++ b/src/include/nodes/plannodes.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/nodes/plannodes.h,v 1.113 2009/10/26 02:26:42 tgl Exp $ + * $PostgreSQL: pgsql/src/include/nodes/plannodes.h,v 1.114 2009/12/29 20:11:45 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -570,9 +570,9 @@ typedef struct Unique * hash build node * * If the executor is supposed to try to apply skew join optimization, then - * skewTable/skewColumn identify the outer relation's join key column, from - * which the relevant MCV statistics can be fetched. Also, its type - * information is provided to save a lookup. + * skewTable/skewColumn/skewInherit identify the outer relation's join key + * column, from which the relevant MCV statistics can be fetched. Also, its + * type information is provided to save a lookup. * ---------------- */ typedef struct Hash @@ -580,6 +580,7 @@ typedef struct Hash Plan plan; Oid skewTable; /* outer join key's table OID, or InvalidOid */ AttrNumber skewColumn; /* outer join key's column #, or zero */ + bool skewInherit; /* is outer join rel an inheritance tree? */ Oid skewColType; /* datatype of the outer key column */ int32 skewColTypmod; /* typmod of the outer key column */ /* all other info is in the parent HashJoin node */ |