diff options
Diffstat (limited to 'contrib/postgres_fdw/postgres_fdw.h')
| -rw-r--r-- | contrib/postgres_fdw/postgres_fdw.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/contrib/postgres_fdw/postgres_fdw.h b/contrib/postgres_fdw/postgres_fdw.h index 30b6502bc05..35545e1831d 100644 --- a/contrib/postgres_fdw/postgres_fdw.h +++ b/contrib/postgres_fdw/postgres_fdw.h @@ -59,12 +59,17 @@ typedef struct PgFdwRelationInfo /* Selectivity of join conditions */ Selectivity joinclause_sel; - /* Estimated size and cost for a scan or join. */ + /* Estimated size and cost for a scan, join, or grouping/aggregation. */ double rows; int width; Cost startup_cost; Cost total_cost; - /* Costs excluding costs for transferring data from the foreign server */ + /* + * Estimated number of rows fetched from the foreign server, and costs + * excluding costs for transferring those rows from the foreign server. + * These are only used by estimate_path_cost_size(). + */ + double retrieved_rows; Cost rel_startup_cost; Cost rel_total_cost; |