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67 lines
2.2 KiB
67 lines
2.2 KiB
// Copyright 2019 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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// See the License for the specific language governing permissions and
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// limitations under the License.
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package executor_test
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import (
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"os"
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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/executor"
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"github.com/pingcap/tidb/sessionctx"
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"github.com/pingcap/tidb/util/testkit"
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)
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func (s *testSuite1) TestIndexAdvise(c *C) {
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tk := testkit.NewTestKit(c, s.store)
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_, err := tk.Exec("index advise infile '/tmp/nonexistence.sql'")
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c.Assert(err.Error(), Equals, "Index Advise: don't support load file without local field")
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_, err = tk.Exec("index advise local infile ''")
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c.Assert(err.Error(), Equals, "Index Advise: infile path is empty")
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_, err = tk.Exec("index advise local infile '/tmp/nonexistence.sql' lines terminated by ''")
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c.Assert(err.Error(), Equals, "Index Advise: don't support advise index for SQL terminated by nil")
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path := "/tmp/index_advise.sql"
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fp, err := os.Create(path)
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c.Assert(err, IsNil)
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c.Assert(fp, NotNil)
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defer func() {
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err = fp.Close()
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c.Assert(err, IsNil)
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err = os.Remove(path)
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c.Assert(err, IsNil)
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}()
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_, err = fp.WriteString("\n" +
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"select * from t;\n" +
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"\n" +
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"select * from t where a > 1;\n" +
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"select a from t where a > 1 and a < 100;\n" +
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"\n" +
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"\n" +
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"select a,b from t1,t2 where t1.a = t2.b;\n" +
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"\n")
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c.Assert(err, IsNil)
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// TODO: Using "tastCase" to do more test when we finish the index advisor completely.
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tk.MustExec("index advise local infile '/tmp/index_advise.sql' max_minutes 3 max_idxnum per_table 4 per_db 5")
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ctx := tk.Se.(sessionctx.Context)
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ia, ok := ctx.Value(executor.IndexAdviseVarKey).(*executor.IndexAdviseInfo)
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defer ctx.SetValue(executor.IndexAdviseVarKey, nil)
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c.Assert(ok, IsTrue)
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c.Assert(ia.MaxMinutes, Equals, uint64(3))
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c.Assert(ia.MaxIndexNum.PerTable, Equals, uint64(4))
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c.Assert(ia.MaxIndexNum.PerDB, Equals, uint64(5))
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}
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