sources

This table contains all the sources for our datasets. The description column contains JSON encoded as text that contains useful additional fields like a longer descriptive text "additionalInfo".

Data license: CC-BY

1 row where datasetId = 2719 sorted by id descending

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id ▲ name description createdAt updatedAt datasetId additionalInfo link dataPublishedBy
15452 United States Postal Service (2018) 
{
    "link": "https://about.usps.com/who-we-are/postal-history/pieces-of-mail-since-1789.pdf",
    "retrievedDate": "04/04/2018",
    "additionalInfo": null,
    "dataPublishedBy": "United States Postal Service",
    "dataPublisherSource": "Annual Report of the Postmaster General"
}
 2018-04-04 14:50:44 2018-04-04 14:50:44 Pieces of mail and number of post offices - United States Postal Service (2018) 2719   https://about.usps.com/who-we-are/postal-history/pieces-of-mail-since-1789.pdf United States Postal Service

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CREATE TABLE "sources" (
	"id" INTEGER PRIMARY KEY AUTOINCREMENT,
	"name" VARCHAR(512) NULL  ,
	"description" TEXT NOT NULL  ,
	"createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ,
	"updatedAt" DATETIME NULL  ,
	"datasetId" INTEGER NULL, additionalInfo TEXT GENERATED ALWAYS as (JSON_EXTRACT(description, '$.additionalInfo')) VIRTUAL, link TEXT GENERATED ALWAYS as (JSON_EXTRACT(description, '$.link')) VIRTUAL, dataPublishedBy TEXT GENERATED ALWAYS as (JSON_EXTRACT(description, '$.dataPublishedBy')) VIRTUAL,
	FOREIGN KEY("datasetId") REFERENCES "datasets" ("id") ON UPDATE RESTRICT ON DELETE RESTRICT
);
CREATE INDEX "sources_datasetId" ON "sources" ("datasetId");