diff options
Diffstat (limited to 'src/include/access/nbtree.h')
| -rw-r--r-- | src/include/access/nbtree.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/src/include/access/nbtree.h b/src/include/access/nbtree.h index 0c43767f8c3..faabcb78e7b 100644 --- a/src/include/access/nbtree.h +++ b/src/include/access/nbtree.h @@ -1043,8 +1043,8 @@ typedef struct BTScanOpaqueData /* workspace for SK_SEARCHARRAY support */ int numArrayKeys; /* number of equality-type array keys */ bool needPrimScan; /* New prim scan to continue in current dir? */ - bool scanBehind; /* Last array advancement matched -inf attr? */ - bool oppositeDirCheck; /* explicit scanBehind recheck needed? */ + bool scanBehind; /* Check scan not still behind on next page? */ + bool oppositeDirCheck; /* scanBehind opposite-scan-dir check? */ BTArrayKeyInfo *arrayKeys; /* info about each equality-type array key */ FmgrInfo *orderProcs; /* ORDER procs for required equality keys */ MemoryContext arrayContext; /* scan-lifespan context for array data */ @@ -1087,11 +1087,12 @@ typedef struct BTReadPageState OffsetNumber maxoff; /* Highest non-pivot tuple's offset */ IndexTuple finaltup; /* Needed by scans with array keys */ Page page; /* Page being read */ + bool firstpage; /* page is first for primitive scan? */ /* Per-tuple input parameters, set by _bt_readpage for _bt_checkkeys */ OffsetNumber offnum; /* current tuple's page offset number */ - /* Output parameter, set by _bt_checkkeys for _bt_readpage */ + /* Output parameters, set by _bt_checkkeys for _bt_readpage */ OffsetNumber skip; /* Array keys "look ahead" skip offnum */ bool continuescan; /* Terminate ongoing (primitive) index scan? */ @@ -1298,8 +1299,8 @@ extern int _bt_binsrch_array_skey(FmgrInfo *orderproc, extern void _bt_start_array_keys(IndexScanDesc scan, ScanDirection dir); extern bool _bt_checkkeys(IndexScanDesc scan, BTReadPageState *pstate, bool arrayKeys, IndexTuple tuple, int tupnatts); -extern bool _bt_oppodir_checkkeys(IndexScanDesc scan, ScanDirection dir, - IndexTuple finaltup); +extern bool _bt_scanbehind_checkkeys(IndexScanDesc scan, ScanDirection dir, + IndexTuple finaltup); extern void _bt_killitems(IndexScanDesc scan); extern BTCycleId _bt_vacuum_cycleid(Relation rel); extern BTCycleId _bt_start_vacuum(Relation rel); |