diff options
Diffstat (limited to 'contrib/pageinspect/btreefuncs.c')
| -rw-r--r-- | contrib/pageinspect/btreefuncs.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/contrib/pageinspect/btreefuncs.c b/contrib/pageinspect/btreefuncs.c index d9628dd664d..7651c59bbf9 100644 --- a/contrib/pageinspect/btreefuncs.c +++ b/contrib/pageinspect/btreefuncs.c @@ -613,6 +613,15 @@ bt_page_items_bytea(PG_FUNCTION_ARGS) uargs->offset = FirstOffsetNumber; + /* verify the special space has the expected size */ + if (PageGetSpecialSize(uargs->page) != MAXALIGN(sizeof(BTPageOpaqueData))) + ereport(ERROR, + (errcode(ERRCODE_INVALID_PARAMETER_VALUE), + errmsg("input page is not a valid %s page", "btree"), + errdetail("Expected special size %d, got %d.", + (int) MAXALIGN(sizeof(BTPageOpaqueData)), + (int) PageGetSpecialSize(uargs->page)))); + opaque = (BTPageOpaque) PageGetSpecialPointer(uargs->page); if (P_ISMETA(opaque)) @@ -620,6 +629,11 @@ bt_page_items_bytea(PG_FUNCTION_ARGS) (errcode(ERRCODE_INVALID_PARAMETER_VALUE), errmsg("block is a meta page"))); + if (P_ISLEAF(opaque) && opaque->btpo_level != 0) + ereport(ERROR, + (errcode(ERRCODE_INVALID_PARAMETER_VALUE), + errmsg("block is not a valid btree leaf page"))); + if (P_ISDELETED(opaque)) elog(NOTICE, "page is deleted"); |