PG Bug reporting form <noreply(at)postgresql(dot)org> writes: > PgManager giving error while looking a table with PgV12. > Error: column "consrc" does not exist.
Evidently PgManager needs to be updated to work with PG 12 ... or, really, prior versions too, because that column was deprecated for a long time before we finally removed it. Use of the pg_get_constraintdef() function is preferable.
You'll need to pester the author of PgManager to fix it.