Query parallel execution #89
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…on, result returns as set of values. missing memory managment for variable and value Signed-off-by: gal salomon <[email protected]>
2 main flows (1) non-aggregation flow: split the input object into N ranges, each range gets its own context. (2) aggregarion flow:(for aggregatio queries) requires 2 phases, Upon the completion of the first phase (running the query on a specific range) The AST will be traversed for aggregation nodes, the result of each node is pushed into a dedicated scratch area current commit is handling the CSV use-case/non-aggregation flow.
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#103 is handling the parallel execution. it takes a different approach(the caller splits the input or defines many input streams as a single one). |
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2 main flows
(1) non-aggregation flow: split the input object into N ranges, each range gets its own context.
(2) aggregation flow:(for aggregation queries) requires 2 phases,
Upon the completion of the first phase (running the query on a specific range)
The AST will be traversed for aggregation nodes, the result of each node is pushed into a dedicated scratch area
the second phase will use the result of the first phase.
The AST for the second phase will be refactored.