[server] Make connection pooler configurable and set better default values Drop the configuration connections-pool-size and add new configurations options: * connections-pool-min-size. Set to 0 by default so we open connections only when needed. This avoid opening min-size*processes connections at startup, which is, it think, a good default. * connections-pool-max-size. Set to 0 (unlimited) by default, so we move the bottleneck to postgresql. * connections-idle-timeout. Set to 10 minutes. I don't have arguments about this except that this is the default in pgbouncer.

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Data model

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==========

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This chapter describes how you define a schema and how to make it evolves as the time goes.

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.. toctree::

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   :maxdepth: 1

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   definition

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   metadata

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   baseschema

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   define-workflows