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doris/be
Mingyu Chen f6e598dca2 Revert "[improvement](reader) optimize for single rowset reading (#7351)" (#7427)
Reverts apache/incubator-doris#7351

This commit will cause wrong result with agg table.
For example, an agg table `(k1, k2, v1 sum)` with single non-overlapping rowset

`select count(k1) from tbl1;` should using `_direct_agg_key_next_row` instead of `_agg_key_next_row`.

Otherwise it return less rows than expected.(because `_agg_key_next_row` will only do aggregation with `k1`)
2021-12-19 18:31:11 +08:00
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