[GitHub] [iceberg] szehon-ho commented on issue #7431: iceberg mor table execute merge very very slow

["szehon-ho (via GitHub)" <gi...@apache.org>]

szehon-ho commented on issue #7431:
URL: https://github.com/apache/iceberg/issues/7431#issuecomment-1536598262

   It looks like what folks are mentioning here, the noticeable difference in plan is
   
   ```
                  :        +- BatchScan[uni_order_id#3586, data_from#3587L, partner#3588, plat_code#3589, order_id#3590, uni_shop_id#3591, uni_id#3592, guide_id#3593, shop_id#3594, plat_account#3595, total_fee#3596, item_discount_fee#3597, trade_discount_fee#3598, adjust_fee#3599, post_fee#3600, discount_rate#3601, payment_no_postfee#3602, payment#3603, pay_time#3604, product_num#3605L, order_status#3606, is_refund#3607, refund_fee#3608, insert_time#3609, ... 35 more fields] local.test.b_std_trade_4_iceberg_orc_zstd (branch=null) [filters=, groupedBy=] RuntimeFilters: [dynamicpruningexpression(_file#3706 IN dynamicpruning#4007)]
                  :              +- SubqueryAdaptiveBroadcast dynamicpruning#4007, 0, false, Project [_file#4006], [_file#4006]
   
   ```
   
   Looks like pushed to test.b_std_trade_4_iceberg_orc_zstd  in COW only


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