diff options
Diffstat (limited to 'contrib/postgres_fdw/postgres_fdw.c')
| -rw-r--r-- | contrib/postgres_fdw/postgres_fdw.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/contrib/postgres_fdw/postgres_fdw.c b/contrib/postgres_fdw/postgres_fdw.c index 9fc53cad680..a31abce7c99 100644 --- a/contrib/postgres_fdw/postgres_fdw.c +++ b/contrib/postgres_fdw/postgres_fdw.c @@ -692,15 +692,14 @@ postgresGetForeignRelSize(PlannerInfo *root, else { /* - * If the foreign table has never been ANALYZEd, it will have relpages - * and reltuples equal to zero, which most likely has nothing to do - * with reality. We can't do a whole lot about that if we're not + * If the foreign table has never been ANALYZEd, it will have + * reltuples < 0, meaning "unknown". We can't do much if we're not * allowed to consult the remote server, but we can use a hack similar * to plancat.c's treatment of empty relations: use a minimum size * estimate of 10 pages, and divide by the column-datatype-based width * estimate to get the corresponding number of tuples. */ - if (baserel->pages == 0 && baserel->tuples == 0) + if (baserel->tuples < 0) { baserel->pages = 10; baserel->tuples = |