Bump default value for sequence_range to 1000.
Bump default value for sequence_range to 1000.

This shows good improvement for workloads which repeatedly asks for sequence
values. We already override the sequence_range value to 1000 for COPY and it
makes a lot of sense to do the same for INSERTs

zeroae/postgres-xl,zeroae/postgres-xl,zeroae/postgres-xl,zeroae/postgres-xl,zeroae/postgres-xl