Hello hackers,
I noticed this while reviewing the pg_get_tale_ddl patch and looking
for inconsistencies compared to pg_dump.
It seems like pg_dump emits SET STATISTICS for most cases since 2018
(e4fca461), but it was missed in this case:
CREATE TABLE t (a int, b int);
ALTER TABLE t ADD CONSTRAINT name EXCLUDE USING gist ((a+b) WITH =);
ALTER INDEX name ALTER COLUMN 1 SET STATISTICS 900;
The last statement was missing from the pg_dump output.
Attached patch fixes it and adds a test case.
