100 lines
3.1 KiB
Go
100 lines
3.1 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 test
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import (
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"bytes"
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"testing"
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"github.com/pingcap/tidb/pkg/config/kerneltype"
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"github.com/pingcap/tidb/pkg/domain"
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"github.com/pingcap/tidb/pkg/kv"
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"github.com/pingcap/tidb/pkg/planner/util/coretestsdk"
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"github.com/pingcap/tidb/pkg/session"
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"github.com/pingcap/tidb/pkg/tablecodec"
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"github.com/stretchr/testify/require"
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)
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func TestParseErrorWarn(t *testing.T) {
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ctx := coretestsdk.MockContext()
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defer func() {
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domain.GetDomain(ctx).StatsHandle().Close()
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}()
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nodes, err := session.Parse(ctx, "select /*+ adf */ 1")
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require.NoError(t, err)
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require.Len(t, nodes, 1)
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require.Len(t, ctx.GetSessionVars().StmtCtx.GetWarnings(), 1)
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_, err = session.Parse(ctx, "select")
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require.Error(t, err)
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}
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func TestKeysNeedLock(t *testing.T) {
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rowKey := tablecodec.EncodeRowKeyWithHandle(1, kv.IntHandle(1))
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uniqueIndexKey := tablecodec.EncodeIndexSeekKey(1, 1, []byte{1})
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nonUniqueIndexKey := tablecodec.EncodeIndexSeekKey(1, 2, []byte{1})
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tempIndexKey := tablecodec.EncodeIndexSeekKey(1, 3, []byte{1})
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tablecodec.IndexKey2TempIndexKey(tempIndexKey)
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uniqueValue := make([]byte, 8)
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uniqueUntouched := append(uniqueValue, '1')
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nonUniqueVal := []byte{'0'}
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nonUniqueUntouched := []byte{'1'}
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var deleteVal []byte
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rowVal := []byte{'a', 'b', 'c'}
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tests := []struct {
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key []byte
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val []byte
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need bool
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}{
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{rowKey, rowVal, true},
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{rowKey, deleteVal, true},
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{nonUniqueIndexKey, nonUniqueVal, false},
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{nonUniqueIndexKey, nonUniqueUntouched, false},
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{uniqueIndexKey, uniqueValue, true},
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{uniqueIndexKey, uniqueUntouched, false},
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{uniqueIndexKey, deleteVal, false},
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}
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for _, test := range tests {
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need := session.KeyNeedToLock(test.key, test.val, 0)
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require.Equal(t, test.need, need)
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flag := kv.KeyFlags(1)
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need = session.KeyNeedToLock(test.key, test.val, flag)
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require.True(t, flag.HasPresumeKeyNotExists())
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require.True(t, need)
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if bytes.Equal(test.key, nonUniqueIndexKey) && bytes.Equal(test.val, nonUniqueVal) {
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flag = kv.ApplyFlagsOps(kv.KeyFlags(0), kv.SetNeedLocked)
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require.True(t, flag.HasNeedLocked())
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require.True(t, session.KeyNeedToLock(test.key, test.val, flag))
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}
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}
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tempIdxValue := (&tablecodec.TempIndexValueElem{
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Value: nonUniqueVal,
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KeyVer: tablecodec.TempIndexKeyTypeBackfill,
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}).Encode(nil)
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need := session.KeyNeedToLock(tempIndexKey, tempIdxValue, 0)
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if kerneltype.IsNextGen() {
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require.True(t, need)
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} else {
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require.False(t, need)
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}
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flag := kv.KeyFlags(1)
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require.True(t, session.KeyNeedToLock(tempIndexKey, tempIdxValue, flag))
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}
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