diff options
Diffstat (limited to 'src/include/nodes/parsenodes.h')
| -rw-r--r-- | src/include/nodes/parsenodes.h | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h index 388efc2ebdc..8516da8800e 100644 --- a/src/include/nodes/parsenodes.h +++ b/src/include/nodes/parsenodes.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2000, PostgreSQL, Inc * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: parsenodes.h,v 1.109 2000/07/14 15:43:51 thomas Exp $ + * $Id: parsenodes.h,v 1.110 2000/07/15 00:01:38 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -467,13 +467,12 @@ typedef struct IndexStmt NodeTag type; char *idxname; /* name of the index */ char *relname; /* name of relation to index on */ - char *accessMethod; /* name of acess methood (eg. btree) */ + char *accessMethod; /* name of access method (eg. btree) */ List *indexParams; /* a list of IndexElem */ List *withClause; /* a list of DefElem */ - Node *whereClause; /* qualifications */ - List *rangetable; /* range table, filled in by + Node *whereClause; /* qualification (partial-index predicate) */ + List *rangetable; /* range table for qual, filled in by * transformStmt() */ - bool *lossy; /* is index lossy? */ bool unique; /* is index unique? */ bool primary; /* is index on primary key? */ } IndexStmt; @@ -1088,14 +1087,18 @@ typedef struct RangeVar /* * IndexElem - index parameters (used in CREATE INDEX) + * + * For a plain index, each 'name' is an attribute name in the heap relation, + * and 'args' is NIL. For a functional index, only one IndexElem is allowed. + * It has name = name of function and args = list of attribute names that + * are the function's arguments. */ typedef struct IndexElem { NodeTag type; - char *name; /* name of index */ - List *args; /* if not NULL, function index */ - char *class; - TypeName *typename; /* type of index's keys (optional) */ + char *name; /* name of attribute to index, or function */ + List *args; /* list of names of function arguments */ + char *class; /* name of desired opclass; NULL = default */ } IndexElem; /* |