From 0c38d182eadb7bc84b46dc7ae7a3a1e3a18a16ed Mon Sep 17 00:00:00 2001 From: xufei Date: Wed, 29 Nov 2023 14:20:52 +0800 Subject: [PATCH] update the task type of mpp task (#15293) --- tiflash/use-tiflash-mpp-mode.md | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/tiflash/use-tiflash-mpp-mode.md b/tiflash/use-tiflash-mpp-mode.md index c03e8aaccfee..8e8f44761f0a 100644 --- a/tiflash/use-tiflash-mpp-mode.md +++ b/tiflash/use-tiflash-mpp-mode.md @@ -81,19 +81,19 @@ MPP 模式目前支持的物理算法有：Broadcast Hash Join、Shuffled Hash J ```sql mysql> explain select count(*) from customer c join nation n on c.c_nationkey=n.n_nationkey; -+------------------------------------------+------------+-------------------+---------------+----------------------------------------------------------------------------+ -| id | estRows | task | access object | operator info | -+------------------------------------------+------------+-------------------+---------------+----------------------------------------------------------------------------+ -| HashAgg_23 | 1.00 | root | | funcs:count(Column#16)->Column#15 | -| └─TableReader_25 | 1.00 | root | | data:ExchangeSender_24 | -| └─ExchangeSender_24 | 1.00 | batchCop[tiflash] | | ExchangeType: PassThrough | -| └─HashAgg_12 | 1.00 | batchCop[tiflash] | | funcs:count(1)->Column#16 | -| └─HashJoin_17 | 3000000.00 | batchCop[tiflash] | | inner join, equal:[eq(tpch.nation.n_nationkey, tpch.customer.c_nationkey)] | -| ├─ExchangeReceiver_21(Build) | 25.00 | batchCop[tiflash] | | | -| │ └─ExchangeSender_20 | 25.00 | batchCop[tiflash] | | ExchangeType: Broadcast | -| │ └─TableFullScan_18 | 25.00 | batchCop[tiflash] | table:n | keep order:false | -| └─TableFullScan_22(Probe) | 3000000.00 | batchCop[tiflash] | table:c | keep order:false | -+------------------------------------------+------------+-------------------+---------------+----------------------------------------------------------------------------+ ++------------------------------------------+------------+--------------+---------------+----------------------------------------------------------------------------+ +| id | estRows | task | access object | operator info | ++------------------------------------------+------------+--------------+---------------+----------------------------------------------------------------------------+ +| HashAgg_23 | 1.00 | root | | funcs:count(Column#16)->Column#15 | +| └─TableReader_25 | 1.00 | root | | data:ExchangeSender_24 | +| └─ExchangeSender_24 | 1.00 | mpp[tiflash] | | ExchangeType: PassThrough | +| └─HashAgg_12 | 1.00 | mpp[tiflash] | | funcs:count(1)->Column#16 | +| └─HashJoin_17 | 3000000.00 | mpp[tiflash] | | inner join, equal:[eq(tpch.nation.n_nationkey, tpch.customer.c_nationkey)] | +| ├─ExchangeReceiver_21(Build) | 25.00 | mpp[tiflash] | | | +| │ └─ExchangeSender_20 | 25.00 | mpp[tiflash] | | ExchangeType: Broadcast | +| │ └─TableFullScan_18 | 25.00 | mpp[tiflash] | table:n | keep order:false | +| └─TableFullScan_22(Probe) | 3000000.00 | mpp[tiflash] | table:c | keep order:false | ++------------------------------------------+------------+--------------+---------------+----------------------------------------------------------------------------+ 9 rows in set (0.00 sec) ```