Implement min/max/null-count partition pruning#67
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This still lacks generating the required partition stats needed for pruning.
mildbyte
reviewed
Aug 24, 2022
This is because the filter expressions provided correspond to logical AND. In addition, continue with pruning even if it fails for some of the expressions.
mildbyte
reviewed
Aug 25, 2022
mildbyte
reviewed
Aug 25, 2022
… partitions missing some columns
…ndRobinBatch number
mildbyte
approved these changes
Aug 26, 2022
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Instead of defaulting to scanning all of the partitions, the goal here is to use the statistical summary for each column in each partition, and based on the filter/qualifier used in the query determine whether some of the partitions are superfluous for getting a correct result. If this determination succeeds simply scope the scan down only to partitions which are relevant to the query.