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uniqueProductTable

uniqueProductTable contains unique products and their IDs.

less than a minute

Usage

This table stores unique products.

Structure

key	data type	description	example
`uid`	`text`	ID of a unique product	0
`asset_id`	`serial`	Asset id (see assetTable)	1
`begin_timestamp_ms`	`timestamptz`	Time when product was inputted in asset	0
`end_timestamp_ms`	`timestamptz`	Time when product was output of asset	100
`product_id`	`text`	ID of the product (see productTable)	1
`is_scrap`	`boolean`	True if product is scrap	true
`quality_class`	`text`	Quality class of the product	A
`station_id`	`text`	ID of the station where the product was processed	Soldering Iron-1

Relations

DDL

CREATE TABLE IF NOT EXISTS uniqueProductTable
(
    uid                 TEXT        NOT NULL,
    asset_id            SERIAL      REFERENCES assetTable (id),
    begin_timestamp_ms  TIMESTAMPTZ NOT NULL,
    end_timestamp_ms    TIMESTAMPTZ NOT NULL,
    product_id          TEXT        NOT NULL,
    is_scrap            BOOLEAN     NOT NULL,
    quality_class       TEXT        NOT NULL,
    station_id          TEXT        NOT NULL,
    UNIQUE(uid, asset_id, station_id),
    CHECK (begin_timestamp_ms < end_timestamp_ms)
);

-- creating an index to increase performance
CREATE INDEX ON uniqueProductTable (asset_id, uid, station_id);

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