diff options
Diffstat (limited to 'src/backend/executor/execAmi.c')
| -rw-r--r-- | src/backend/executor/execAmi.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/backend/executor/execAmi.c b/src/backend/executor/execAmi.c index b12aeb3334b..e2154ba86aa 100644 --- a/src/backend/executor/execAmi.c +++ b/src/backend/executor/execAmi.c @@ -30,6 +30,7 @@ #include "executor/nodeGroup.h" #include "executor/nodeHash.h" #include "executor/nodeHashjoin.h" +#include "executor/nodeIncrementalSort.h" #include "executor/nodeIndexonlyscan.h" #include "executor/nodeIndexscan.h" #include "executor/nodeLimit.h" @@ -252,6 +253,10 @@ ExecReScan(PlanState *node) ExecReScanSort((SortState *) node); break; + case T_IncrementalSortState: + ExecReScanIncrementalSort((IncrementalSortState *) node); + break; + case T_GroupState: ExecReScanGroup((GroupState *) node); break; @@ -557,8 +562,17 @@ ExecSupportsBackwardScan(Plan *node) case T_CteScan: case T_Material: case T_Sort: + /* these don't evaluate tlist */ return true; + case T_IncrementalSort: + + /* + * Unlike full sort, incremental sort keeps only a single group of + * tuples in memory, so it can't scan backwards. + */ + return false; + case T_LockRows: case T_Limit: return ExecSupportsBackwardScan(outerPlan(node)); |