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by riverdweller
1704 days ago
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One type of data that can beneficially be exposed under different keys is information pertaining to financial instruments (e.g. instrument reference data or market quotes). Some users may wish to look them up using an ID assigned by Bloomberg (a FIGI). Some other users may instead be familiar with an ID assigned by Reuters (a RIC). Or an ISIN, a CUSIP, or a SEDOL, and so on. In some cases it's simpler to store the data under multiple keys than to build "joins" into the client (given we don't have the luxury of RDBMS SQL logic). |
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