Jpmorgan Chase Bank, N.a.

Elvir Azanli

Marco Pistoia

Narayana R Tummala

Pranav Deshpande

Joseph W Ligman

Frank Schaffa

System and methods for processing data queries in hybrid data mesh architectures are disclosed. A method for processing data queries in hybrid data mesh architectures may include an in-memory query engine: (1) receiving, from a requestor, a data query to retrieve data; (2) parsing the data query into a parse tree; (3) converting the parse tree into a relational tree, wherein the relational tree is a tree representation of relational operators used to execute the data query; and (4) executing a data retrieval method selected from the group consisting of tree partitioning by cost and pruning using subtree replacement using a plurality of retrieval services to retrieve data from data stores identified by the data retrieval method.

System and methods for processing data queries in hybrid data mesh architectures

A method for writing data to a cloud-based database for optimized cloud-based database query execution may include a table writer computer program executed by a local electronic device: (1) receiving table data comprising rows and columns, a schema for the table, and a primary-key for the table; (2) creating a footer for the table, the footer comprising the schema and the primary-key; (3) sorting the rows of the table data using the primary-key; (4) dividing the sorted columns of the table data into a plurality of datapages based on a datapage size; (5) identifying sparse indices for each datapage, wherein the sparse indices comprising a minimum value, a maximum value, a starting row index, an ending row index for each datapage; (6) writing each datapage to cloud storage; (7) inserting the sparse indices into the footer for the table data; and (8) writing the footer to cloud storage.

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Elvir Azanli