You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 

268 lines
10 KiB

// Copyright 2017 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package executor_test
import (
"bytes"
"context"
"fmt"
"runtime/pprof"
"strings"
"time"
. "github.com/pingcap/check"
"github.com/pingcap/parser/model"
"github.com/pingcap/tidb/domain"
"github.com/pingcap/tidb/executor"
"github.com/pingcap/tidb/store/tikv"
"github.com/pingcap/tidb/table/tables"
"github.com/pingcap/tidb/tablecodec"
"github.com/pingcap/tidb/types"
"github.com/pingcap/tidb/util/mock"
"github.com/pingcap/tidb/util/testkit"
)
func checkGoroutineExists(keyword string) bool {
buf := new(bytes.Buffer)
profile := pprof.Lookup("goroutine")
profile.WriteTo(buf, 1)
str := buf.String()
return strings.Contains(str, keyword)
}
func (s *testSuite3) TestCopClientSend(c *C) {
c.Skip("not stable")
if _, ok := s.store.GetClient().(*tikv.CopClient); !ok {
// Make sure the store is tikv store.
return
}
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("use test")
tk.MustExec("create table copclient (id int primary key)")
// Insert 1000 rows.
var values []string
for i := 0; i < 1000; i++ {
values = append(values, fmt.Sprintf("(%d)", i))
}
tk.MustExec("insert copclient values " + strings.Join(values, ","))
// Get table ID for split.
dom := domain.GetDomain(tk.Se)
is := dom.InfoSchema()
tbl, err := is.TableByName(model.NewCIStr("test"), model.NewCIStr("copclient"))
c.Assert(err, IsNil)
tblID := tbl.Meta().ID
// Split the table.
s.cluster.SplitTable(s.mvccStore, tblID, 100)
ctx := context.Background()
// Send coprocessor request when the table split.
rs, err := tk.Exec("select sum(id) from copclient")
c.Assert(err, IsNil)
req := rs.NewChunk()
err = rs.Next(ctx, req)
c.Assert(err, IsNil)
c.Assert(req.GetRow(0).GetMyDecimal(0).String(), Equals, "499500")
rs.Close()
// Split one region.
key := tablecodec.EncodeRowKeyWithHandle(tblID, 500)
region, _ := s.cluster.GetRegionByKey([]byte(key))
peerID := s.cluster.AllocID()
s.cluster.Split(region.GetId(), s.cluster.AllocID(), key, []uint64{peerID}, peerID)
// Check again.
rs, err = tk.Exec("select sum(id) from copclient")
c.Assert(err, IsNil)
req = rs.NewChunk()
err = rs.Next(ctx, req)
c.Assert(err, IsNil)
c.Assert(req.GetRow(0).GetMyDecimal(0).String(), Equals, "499500")
rs.Close()
// Check there is no goroutine leak.
rs, err = tk.Exec("select * from copclient order by id")
c.Assert(err, IsNil)
req = rs.NewChunk()
err = rs.Next(ctx, req)
c.Assert(err, IsNil)
rs.Close()
keyword := "(*copIterator).work"
c.Check(checkGoroutineExists(keyword), IsFalse)
}
func (s *testSuite3) TestGetLackHandles(c *C) {
expectedHandles := []int64{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
handlesMap := make(map[int64]struct{})
for _, h := range expectedHandles {
handlesMap[h] = struct{}{}
}
// expected handles 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
// obtained handles 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
diffHandles := executor.GetLackHandles(expectedHandles, handlesMap)
c.Assert(diffHandles, HasLen, 0)
c.Assert(handlesMap, HasLen, 0)
// expected handles 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
// obtained handles 2, 3, 4, 6, 7, 8, 9
retHandles := []int64{2, 3, 4, 6, 7, 8, 9}
handlesMap = make(map[int64]struct{})
handlesMap[1] = struct{}{}
handlesMap[5] = struct{}{}
handlesMap[10] = struct{}{}
diffHandles = executor.GetLackHandles(expectedHandles, handlesMap)
c.Assert(retHandles, DeepEquals, diffHandles)
}
func (s *testSuite3) TestBigIntPK(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("use test")
tk.MustExec("create table t(a bigint unsigned primary key, b int, c int, index idx(a, b))")
tk.MustExec("insert into t values(1, 1, 1), (9223372036854775807, 2, 2)")
tk.MustQuery("select * from t use index(idx) order by a").Check(testkit.Rows("1 1 1", "9223372036854775807 2 2"))
}
func (s *testSuite3) TestCorColToRanges(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("use test")
tk.MustExec("set sql_mode='STRICT_TRANS_TABLES'") // disable only-full-group-by
tk.MustExec("drop table if exists t")
tk.MustExec("create table t(a int primary key, b int, c int, index idx(b))")
tk.MustExec("insert into t values(1, 1, 1), (2, 2 ,2), (3, 3, 3), (4, 4, 4), (5, 5, 5), (6, 6, 6), (7, 7, 7), (8, 8, 8), (9, 9, 9)")
tk.MustExec("analyze table t")
// Test single read on table.
tk.MustQuery("select t.c in (select count(*) from t s ignore index(idx), t t1 where s.a = t.a and s.a = t1.a) from t").Check(testkit.Rows("1", "0", "0", "0", "0", "0", "0", "0", "0"))
// Test single read on index.
tk.MustQuery("select t.c in (select count(*) from t s use index(idx), t t1 where s.b = t.a and s.a = t1.a) from t").Check(testkit.Rows("1", "0", "0", "0", "0", "0", "0", "0", "0"))
// Test IndexLookUpReader.
tk.MustQuery("select t.c in (select count(*) from t s use index(idx), t t1 where s.b = t.a and s.c = t1.a) from t").Check(testkit.Rows("1", "0", "0", "0", "0", "0", "0", "0", "0"))
}
func (s *testSuiteP1) TestUniqueKeyNullValueSelect(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("use test")
tk.MustExec("drop table if exists t")
// test null in unique-key
tk.MustExec("create table t (id int default null, c varchar(20), unique id (id));")
tk.MustExec("insert t (c) values ('a'), ('b'), ('c');")
res := tk.MustQuery("select * from t where id is null;")
res.Check(testkit.Rows("<nil> a", "<nil> b", "<nil> c"))
// test null in mul unique-key
tk.MustExec("drop table t")
tk.MustExec("create table t (id int default null, b int default 1, c varchar(20), unique id_c(id, b));")
tk.MustExec("insert t (c) values ('a'), ('b'), ('c');")
res = tk.MustQuery("select * from t where id is null and b = 1;")
res.Check(testkit.Rows("<nil> 1 a", "<nil> 1 b", "<nil> 1 c"))
tk.MustExec("drop table t")
// test null in non-unique-key
tk.MustExec("create table t (id int default null, c varchar(20), key id (id));")
tk.MustExec("insert t (c) values ('a'), ('b'), ('c');")
res = tk.MustQuery("select * from t where id is null;")
res.Check(testkit.Rows("<nil> a", "<nil> b", "<nil> c"))
}
// TestIssue10178 contains tests for https://github.com/pingcap/tidb/issues/10178 .
func (s *testSuite3) TestIssue10178(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("use test")
tk.MustExec("drop table if exists t")
tk.MustExec("create table t(a bigint unsigned primary key)")
tk.MustExec("insert into t values(9223372036854775807), (18446744073709551615)")
tk.MustQuery("select max(a) from t").Check(testkit.Rows("18446744073709551615"))
tk.MustQuery("select * from t where a > 9223372036854775807").Check(testkit.Rows("18446744073709551615"))
tk.MustQuery("select * from t where a < 9223372036854775808").Check(testkit.Rows("9223372036854775807"))
}
func (s *testSuite3) TestInconsistentIndex(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("use test")
tk.MustExec("drop table if exists t")
tk.MustExec("create table t(a int, b int, index idx_a(a))")
is := s.domain.InfoSchema()
tbl, err := is.TableByName(model.NewCIStr("test"), model.NewCIStr("t"))
c.Assert(err, IsNil)
idx := tbl.Meta().FindIndexByName("idx_a")
idxOp := tables.NewIndex(tbl.Meta().ID, tbl.Meta(), idx)
ctx := mock.NewContext()
ctx.Store = s.store
for i := 0; i < 10; i++ {
tk.MustExec(fmt.Sprintf("insert into t values (%d, %d)", i+10, i))
c.Assert(tk.QueryToErr("select * from t where a>=0"), IsNil)
}
for i := 0; i < 10; i++ {
tk.MustExec(fmt.Sprintf("update t set a=%d where a=%d", i, i+10))
c.Assert(tk.QueryToErr("select * from t where a>=0"), IsNil)
}
for i := 0; i < 10; i++ {
txn, err := s.store.Begin()
c.Assert(err, IsNil)
_, err = idxOp.Create(ctx, txn, types.MakeDatums(i+10), int64(100+i))
c.Assert(err, IsNil)
err = txn.Commit(context.Background())
c.Assert(err, IsNil)
err = tk.QueryToErr("select * from t use index(idx_a) where a >= 0")
c.Assert(err.Error(), Equals, fmt.Sprintf("inconsistent index idx_a handle count %d isn't equal to value count 10", i+11))
// if has other conditions, the inconsistent index check doesn't work.
err = tk.QueryToErr("select * from t where a>=0 and b<10")
c.Assert(err, IsNil)
}
// fix inconsistent problem to pass CI
for i := 0; i < 10; i++ {
txn, err := s.store.Begin()
c.Assert(err, IsNil)
err = idxOp.Delete(ctx.GetSessionVars().StmtCtx, txn, types.MakeDatums(i+10), int64(100+i))
c.Assert(err, IsNil)
err = txn.Commit(context.Background())
c.Assert(err, IsNil)
}
}
func (s *testSuite3) TestPushLimitDownIndexLookUpReader(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("use test")
tk.MustExec("drop table if exists tbl")
tk.MustExec("create table tbl(a int, b int, c int, key idx_b_c(b,c))")
tk.MustExec("insert into tbl values(1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5)")
tk.MustQuery("select * from tbl use index(idx_b_c) where b > 1 limit 2,1").Check(testkit.Rows("4 4 4"))
tk.MustQuery("select * from tbl use index(idx_b_c) where b > 4 limit 2,1").Check(testkit.Rows())
tk.MustQuery("select * from tbl use index(idx_b_c) where b > 3 limit 2,1").Check(testkit.Rows())
tk.MustQuery("select * from tbl use index(idx_b_c) where b > 2 limit 2,1").Check(testkit.Rows("5 5 5"))
tk.MustQuery("select * from tbl use index(idx_b_c) where b > 1 limit 1").Check(testkit.Rows("2 2 2"))
tk.MustQuery("select * from tbl use index(idx_b_c) where b > 1 order by b desc limit 2,1").Check(testkit.Rows("3 3 3"))
tk.MustQuery("select * from tbl use index(idx_b_c) where b > 1 and c > 1 limit 2,1").Check(testkit.Rows("4 4 4"))
}
func (s *testSuite3) TestIndexLookUpStats(c *C) {
stats := &executor.IndexLookUpRunTimeStats{
IndexScan: int64(2 * time.Second),
TableRowScan: int64(2 * time.Second),
TableTaskNum: 2,
Concurrency: 1,
}
c.Assert(stats.String(), Equals, "index_task:2s, table_task:{num:2, concurrency:1, time:2s}")
c.Assert(stats.String(), Equals, stats.Clone().String())
stats.Merge(stats.Clone())
c.Assert(stats.String(), Equals, "index_task:4s, table_task:{num:4, concurrency:2, time:4s}")
}