| CPC G06F 16/2379 (2019.01) [G06F 16/219 (2019.01)] | 20 Claims |
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1. A method for accessing a database that is stored in a storage system,
the method comprises:
(a) receiving a request to obtain a database entity (DE) of a requested version line out of multiple version lines, wherein each version line is defined, by a user of the storage system prior to the reciving, as a sequence of transactions selected from transactions that were performed on the database, wherein the multiple version lines differ from each other by one or more transactions;
(b) obtaining, for each DE portion out of multiple DE portions of the DE, content of the DE portion as written during a transaction of the requested version line that was a last transaction, of the sequence of transactions of the requested version line, that wrote the DE portion to the database; wherein the obtaining comprises:
i. obtaining the sequence of transactions of the requested version line, from a first metadata that is indicative of identifiers of transactions that belong to each of the multiple version lines, and
ii. obtaining, from a second metadata that is indicative of which transactions were involved in writing to different logical address ranges of the database, the transactions that were involved in writing to a logical address range that is associated with the DE portion;
(c) sending a response to the request, wherein the response comprises, for each DE portion of the DE portions, the obtained content.
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