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Diffstat (limited to 'src/backend/executor/execAmi.c')
| -rw-r--r-- | src/backend/executor/execAmi.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/backend/executor/execAmi.c b/src/backend/executor/execAmi.c index 04073d3f9f9..93e1e9a691c 100644 --- a/src/backend/executor/execAmi.c +++ b/src/backend/executor/execAmi.c @@ -463,6 +463,10 @@ ExecSupportsBackwardScan(Plan *node) case T_CteScan: return TargetListSupportsBackwardScan(node->targetlist); + case T_SampleScan: + /* Simplify life for tablesample methods by disallowing this */ + return false; + case T_IndexScan: return IndexSupportsBackwardScan(((IndexScan *) node)->indexid) && TargetListSupportsBackwardScan(node->targetlist); @@ -485,9 +489,6 @@ ExecSupportsBackwardScan(Plan *node) } return false; - case T_SampleScan: - return false; - case T_Material: case T_Sort: /* these don't evaluate tlist */ |