diff options
Diffstat (limited to 'src/include/nodes/relation.h')
| -rw-r--r-- | src/include/nodes/relation.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/include/nodes/relation.h b/src/include/nodes/relation.h index 641446ca712..d39c73b8b9a 100644 --- a/src/include/nodes/relation.h +++ b/src/include/nodes/relation.h @@ -563,6 +563,10 @@ typedef struct RelOptInfo * indextlist is a TargetEntry list representing the index columns. * It provides an equivalent base-relation Var for each simple column, * and links to the matching indexprs element for each expression column. + * + * While most of these fields are filled when the IndexOptInfo is created + * (by plancat.c), indrestrictinfo and predOK are set later, in + * check_index_predicates(). */ typedef struct IndexOptInfo { @@ -595,7 +599,12 @@ typedef struct IndexOptInfo List *indextlist; /* targetlist representing index columns */ - bool predOK; /* true if predicate matches query */ + List *indrestrictinfo;/* parent relation's baserestrictinfo list, + * less any conditions implied by the index's + * predicate (unless it's a target rel, see + * comments in check_index_predicates()) */ + + bool predOK; /* true if index predicate matches query */ bool unique; /* true if a unique index */ bool immediate; /* is uniqueness enforced immediately? */ bool hypothetical; /* true if index doesn't really exist */ |