diff options
Diffstat (limited to 'src/include/nodes/parsenodes.h')
| -rw-r--r-- | src/include/nodes/parsenodes.h | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h index 9142e94b070..abd4dd166cc 100644 --- a/src/include/nodes/parsenodes.h +++ b/src/include/nodes/parsenodes.h @@ -157,9 +157,10 @@ typedef struct Query List *constraintDeps; /* a list of pg_constraint OIDs that the query * depends on to be semantically valid */ - List *withCheckOptions; /* a list of WithCheckOption's, which are - * only added during rewrite and therefore - * are not written out as part of Query. */ + List *withCheckOptions; /* a list of WithCheckOption's, which + * are only added during rewrite and + * therefore are not written out as + * part of Query. */ } Query; @@ -351,13 +352,17 @@ typedef struct A_Star } A_Star; /* - * A_Indices - array subscript or slice bounds ([lidx:uidx] or [uidx]) + * A_Indices - array subscript or slice bounds ([idx] or [lidx:uidx]) + * + * In slice case, either or both of lidx and uidx can be NULL (omitted). + * In non-slice case, uidx holds the single subscript and lidx is always NULL. */ typedef struct A_Indices { NodeTag type; - Node *lidx; /* NULL if it's a single subscript */ - Node *uidx; + bool is_slice; /* true if slice (i.e., colon present) */ + Node *lidx; /* slice lower bound, if any */ + Node *uidx; /* subscript, or slice upper bound if any */ } A_Indices; /* |