79 lines
3.0 KiB
Go
79 lines
3.0 KiB
Go
// Copyright 2023 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package distsql_test
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import (
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"context"
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"fmt"
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"strings"
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"testing"
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"github.com/pingcap/tidb/kv"
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"github.com/pingcap/tidb/testkit"
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"github.com/stretchr/testify/require"
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)
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func TestDistsqlPartitionTableConcurrency(t *testing.T) {
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store := testkit.CreateMockStore(t)
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tk := testkit.NewTestKit(t, store)
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tk.MustExec("use test")
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tk.MustExec("drop table if exists t1, t2, t3")
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tk.MustExec("create table t1(id int primary key , val int)")
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partitions := make([]string, 0, 20)
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for i := 0; i < 20; i++ {
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pid := i + 1
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partitions = append(partitions, fmt.Sprintf("PARTITION p%d VALUES LESS THAN (%d00)", pid, pid))
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}
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tk.MustExec("create table t2(id int primary key, val int)" +
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"partition by range(id)" +
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"(" + strings.Join(partitions[:10], ",") + ")")
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tk.MustExec("create table t3(id int primary key, val int)" +
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"partition by range(id)" +
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"(" + strings.Join(partitions, ",") + ")")
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for i := 0; i < 20; i++ {
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for _, tbl := range []string{"t1", "t2", "t3"} {
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tk.MustExec(fmt.Sprintf("insert into %s values(%d, %d)", tbl, i*50, i*50))
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}
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}
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tk.MustExec("analyze table t1, t2, t3")
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// non-partitioned table checker
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ctx1 := context.WithValue(context.Background(), "CheckSelectRequestHook", func(req *kv.Request) {
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require.Equal(t, req.KeyRanges.PartitionNum(), 1)
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require.Equal(t, req.Concurrency, 1)
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})
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// 10-ranges-partitioned table checker
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ctx2 := context.WithValue(context.Background(), "CheckSelectRequestHook", func(req *kv.Request) {
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require.Equal(t, req.KeyRanges.PartitionNum(), 10)
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require.Equal(t, req.Concurrency, 10)
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})
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// 20-ranges-partitioned table checker
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ctx3 := context.WithValue(context.Background(), "CheckSelectRequestHook", func(req *kv.Request) {
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require.Equal(t, req.KeyRanges.PartitionNum(), 20)
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require.Equal(t, req.Concurrency, 15)
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})
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ctxs := []context.Context{ctx1, ctx2, ctx3}
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for i, tbl := range []string{"t1", "t2", "t3"} {
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ctx := ctxs[i]
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tk.MustQueryWithContext(ctx, fmt.Sprintf("select * from %s order by id asc limit 1", tbl)).
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Check(testkit.Rows("0 0"))
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tk.MustQueryWithContext(ctx, fmt.Sprintf("select * from %s order by id asc limit 5", tbl)).
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Check(testkit.Rows("0 0", "50 50", "100 100", "150 150", "200 200"))
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tk.MustQueryWithContext(ctx, fmt.Sprintf("select * from %s order by id desc limit 1", tbl)).
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Check(testkit.Rows("950 950"))
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tk.MustQueryWithContext(ctx, fmt.Sprintf("select * from %s order by id desc limit 5", tbl)).
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Check(testkit.Rows("950 950", "900 900", "850 850", "800 800", "750 750"))
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}
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}
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