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Use ON UPDATE CASCADE for foreign keys

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ekzyis 2025-02-04 02:32:06 +01:00
parent 9745bf9b79
commit 9342a93783
1 changed files with 4 additions and 4 deletions
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8
schema.sql
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@ -7,7 +7,7 @@ CREATE TABLE host (
CREATE TABLE host_uptime (
id SERIAL PRIMARY KEY,
created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
host_id INT NOT NULL REFERENCES host(id),
host_id INT NOT NULL REFERENCES host(id) ON UPDATE CASCADE,
-- uptime in seconds
uptime INT NOT NULL
);
@ -16,7 +16,7 @@ CREATE INDEX host_uptime_host_id_created_at_idx ON host_uptime(host_id, created_
CREATE TABLE host_mem (
id SERIAL PRIMARY KEY,
created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
host_id INT NOT NULL REFERENCES host(id),
host_id INT NOT NULL REFERENCES host(id) ON UPDATE CASCADE,
-- available memory in kB
mem_avail INT NOT NULL
);
@ -25,7 +25,7 @@ CREATE INDEX host_mem_host_id_created_at_idx ON host_mem(host_id, created_at);
CREATE TABLE host_disk (
id SERIAL PRIMARY KEY,
created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
host_id INT NOT NULL REFERENCES host(id),
host_id INT NOT NULL REFERENCES host(id) ON UPDATE CASCADE,
-- free disk space in kB
disk_free INT NOT NULL
);
@ -34,7 +34,7 @@ CREATE INDEX host_disk_host_id_created_at_idx ON host_disk(host_id, created_at);
CREATE TABLE host_cpu (
id SERIAL PRIMARY KEY,
created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
host_id INT NOT NULL REFERENCES host(id),
host_id INT NOT NULL REFERENCES host(id) ON UPDATE CASCADE,
-- cpu load for last minute
cpu_load_1m FLOAT NOT NULL
);