The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/9.6/static/sql-altertablespace.html
Description:
https://www.postgresql.org/docs/9.6/static/sql-altertablespace.html
Missing tablespace_option: effective_io_concurrency
Should be consitent with:
"This value can be overridden for tables in a particular tablespace by
setting the tablespace parameter of the same name"
https://www.postgresql.org/docs/9.6/static/runtime-config-resource.html
(effective_io_concurrency)