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Optimize machine pings query (#222)

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* refactor recordPing method

* optimize queries

* migrate machine_pings

remove id, serial_number
add primary key on device_id
add unique constraint on device_id

* remove filelds from query, rename migration, delete duplicate migration

* truncate machine_pings in migration
This commit is contained in:
Zoran Joka 2018-11-21 11:08:19 +01:00 • committed by Josh Harvey
parent e7bb29341d
commit 13040f41a1
3 changed files with 22 additions and 12 deletions
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17
migrations/1542638179228-alter-machine-pings.js Normal file
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const db = require('./db')
exports.up = function(next) {
var sql = [
'TRUNCATE TABLE machine_pings',
'ALTER TABLE machine_pings DROP id',
'ALTER TABLE machine_pings DROP serial_number',
'ALTER TABLE machine_pings ADD CONSTRAINT PK_device_id PRIMARY KEY (device_id)',
'ALTER TABLE machine_pings ADD CONSTRAINT U_device_id UNIQUE(device_id)'
]
db.multi(sql, next)
};
exports.down = function(next) {
next();
};