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Uniform stock management for healthcare linen rooms. Licensed under the GNU AGPL v3.
7 lines
439 B
SQL
7 lines
439 B
SQL
-- A counter the screens can poll to find out that somebody else changed something.
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--
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-- Cheap on purpose: one integer on a row every device already looks up by primary key. The
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-- alternative was re-reading the facility's whole snapshot on a timer to spot a difference, which
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-- on a ward phone is the entire catalogue every few seconds to learn that nothing happened.
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ALTER TABLE "Facility" ADD COLUMN "rev" INTEGER NOT NULL DEFAULT 0;
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