correcoes menores


```
psql postgres://postgres@localhost/ingest1 < pubLib04-aggregate.sql
CREATE FUNCTION
NOTICE:  aggregate array_agg_cat(anyarray) does not exist, skipping
DROP AGGREGATE
ERROR:  function array_cat(anyarray, anyarray) does not exist
NOTICE:  aggregate array_agg_cat_distinct(anyarray) does not exist, skipping
```
