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Diffstat (limited to 'src/backend/optimizer/plan/planner.c')
| -rw-r--r-- | src/backend/optimizer/plan/planner.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/backend/optimizer/plan/planner.c b/src/backend/optimizer/plan/planner.c index a8cea5efe14..6f45efde21d 100644 --- a/src/backend/optimizer/plan/planner.c +++ b/src/backend/optimizer/plan/planner.c @@ -4610,6 +4610,7 @@ create_one_window_path(PlannerInfo *root, * Note: a WindowFunc adds nothing to the target's eval costs; but * we do need to account for the increase in tlist width. */ + int64 tuple_width = window_target->width; ListCell *lc2; window_target = copy_pathtarget(window_target); @@ -4618,8 +4619,9 @@ create_one_window_path(PlannerInfo *root, WindowFunc *wfunc = lfirst_node(WindowFunc, lc2); add_column_to_pathtarget(window_target, (Expr *) wfunc, 0); - window_target->width += get_typavgwidth(wfunc->wintype, -1); + tuple_width += get_typavgwidth(wfunc->wintype, -1); } + window_target->width = clamp_width_est(tuple_width); } else { |