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+For bulk inserts:
+
+- make write-ahead-log larger (eg, 16MB)
+- transactions of ~1000+ inserts
+- https://www.postgresql.org/docs/current/static/populate.html
+- https://www.depesz.com/2007/07/05/how-to-insert-data-to-database-as-fast-as-possible/
+- https://stackoverflow.com/questions/12206600/how-to-speed-up-insertion-performance-in-postgresql