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*: Make 'IF NOT EXISTS' great again in 'CREATE TABLE IF NOT EXISTS LI…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| // Copyright 2018 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 ddl_test | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
| "github.com/juju/errors" | ||
| . "github.com/pingcap/check" | ||
| "github.com/pingcap/tidb/domain" | ||
| "github.com/pingcap/tidb/infoschema" | ||
| "github.com/pingcap/tidb/kv" | ||
| "github.com/pingcap/tidb/session" | ||
| "github.com/pingcap/tidb/sessionctx" | ||
| "github.com/pingcap/tidb/sessionctx/stmtctx" | ||
| "github.com/pingcap/tidb/store/mockstore" | ||
| "github.com/pingcap/tidb/terror" | ||
| "github.com/pingcap/tidb/util/mock" | ||
| "github.com/pingcap/tidb/util/testkit" | ||
| "github.com/pingcap/tidb/util/testleak" | ||
| ) | ||
|
|
||
| var _ = Suite(&testIntegrationSuite{}) | ||
|
|
||
| type testIntegrationSuite struct { | ||
| store kv.Storage | ||
| dom *domain.Domain | ||
| ctx sessionctx.Context | ||
| } | ||
|
|
||
| func (s *testIntegrationSuite) TearDownTest(c *C) { | ||
| tk := testkit.NewTestKit(c, s.store) | ||
| tk.MustExec("use test") | ||
| r := tk.MustQuery("show tables") | ||
| for _, tb := range r.Rows() { | ||
| tableName := tb[0] | ||
| tk.MustExec(fmt.Sprintf("drop table %v", tableName)) | ||
| } | ||
| } | ||
|
|
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| func (s *testIntegrationSuite) SetUpSuite(c *C) { | ||
| var err error | ||
| testleak.BeforeTest() | ||
| s.store, s.dom, err = newStoreWithBootstrap() | ||
| c.Assert(err, IsNil) | ||
| s.ctx = mock.NewContext() | ||
| } | ||
|
|
||
| func (s *testIntegrationSuite) TearDownSuite(c *C) { | ||
| s.dom.Close() | ||
| s.store.Close() | ||
| testleak.AfterTest(c)() | ||
| } | ||
|
|
||
| // for issue #6879 | ||
| func (s *testIntegrationSuite) TestCreateTableIfNotExists(c *C) { | ||
| tk := testkit.NewTestKit(c, s.store) | ||
|
|
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| tk.MustExec("USE test;") | ||
|
|
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| tk.MustExec("create table t1(a bigint)") | ||
| tk.MustExec("create table t(a bigint)") | ||
|
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| // Test duplicate create-table with `LIKE` clause | ||
| tk.MustExec("create table if not exists t like t1;") | ||
| warnings := tk.Se.GetSessionVars().StmtCtx.GetWarnings() | ||
| c.Assert(len(warnings), GreaterEqual, 1) | ||
| lastWarn := warnings[len(warnings)-1] | ||
| c.Assert(terror.ErrorEqual(infoschema.ErrTableExists, lastWarn.Err), IsTrue) | ||
| c.Assert(lastWarn.Level, Equals, stmtctx.WarnLevelNote) | ||
|
|
||
| // Test duplicate create-table without `LIKE` clause | ||
| tk.MustExec("create table if not exists t(b bigint, c varchar(60));") | ||
| warnings = tk.Se.GetSessionVars().StmtCtx.GetWarnings() | ||
| c.Assert(len(warnings), GreaterEqual, 1) | ||
| lastWarn = warnings[len(warnings)-1] | ||
| c.Assert(terror.ErrorEqual(infoschema.ErrTableExists, lastWarn.Err), IsTrue) | ||
| } | ||
|
|
||
| func newStoreWithBootstrap() (kv.Storage, *domain.Domain, error) { | ||
| store, err := mockstore.NewMockTikvStore() | ||
| if err != nil { | ||
| return nil, nil, errors.Trace(err) | ||
| } | ||
| session.SetSchemaLease(0) | ||
| session.SetStatsLease(0) | ||
| dom, err := session.BootstrapSession(store) | ||
| return store, dom, errors.Trace(err) | ||
| } |
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