> > > > WARNING: invalid input syntax for type integer: "four" > > row_written | stats_applied | > > stats_rejected | params_rejected > > -------------+----------------------------------+-------------------- > > ------------------+----------------- > > t | {null_frac,avg_width,n_distinct} | > > {most_common_vals,most_common_freqs} | > > (1 row) > > I think I like this, as well, except for the return value, which seems > like too much information and a bit over-engineered. Can we simplify it > to what's actually going to be used by pg_upgrade and other tools? >
pg_upgrade currently won't need any of it, it currently does nothing when a statistics import fails. But it could do *something* based on this information. For example, we might have an option --analyze-tables-that-have-a-statistics-import-failure that analyzes tables that have at least one statistics that didn't import. For instance, postgres_fdw may try to do stats import first, and if that fails fall back to a remote table sample. We could do other things. It seems a shame to just throw away this information when it could potentially be used in the future. > > > Attached is v25. > > I believe 0001 and 0002 are in good shape API-wise, and I can start > getting those committed. I will try to clean up the code in the > process. > :)