16 lines
1.1 KiB
SQL
16 lines
1.1 KiB
SQL
-- The settings layers move into mesh-config (novox/hq ADR 0348 §9, design 57 K5, issue 664).
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--
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-- Every config value a settings layer holds is set in mesh-config by the move of config (`move-config`), one of the
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-- moves of data a release runs once after its delivery; the layers it moved keep their rows, emptied, so the
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-- placement kept beside each stays where it is, and each is kept whole in the history first. This row is the
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-- switch: while it is absent the controller composes from the layers as before; once the move has run and read
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-- every value back through mesh-config, it is written, and the controller reads a module in the config form from
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-- mesh-config_resolved where it read its layers (ADR 0349 clause 17's old way, an exception to ADR 0348 §9 that
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-- design 57's R1 removes). One row at most; never written by a migration, so a delivery alone changes nothing.
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create table config_move (
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only_one boolean primary key default true check (only_one),
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moved_at timestamptz not null default now(),
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moved_by text,
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why text not null
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);
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