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由 Hans Zeller 提交于
ORCA version to v3.17.0 This patch introduces a guc `optimizer_enable_agg_skew_avoidance` which can be used to avoid plans which generate a lot of skew when aggregates are used in the query. The default value of this guc is true. Co-authored-by: NAbhijit Subramanya <asubramanya@pivotal.io> Co-authored-by: NHans Zeller <hzeller@pivotal.io>
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