44 lines
1.4 KiB
Go
44 lines
1.4 KiB
Go
// Copyright 2024 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 context
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import (
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"github.com/pingcap/tidb/pkg/errctx"
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exprctx "github.com/pingcap/tidb/pkg/expression/context"
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"github.com/pingcap/tidb/pkg/types"
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contextutil "github.com/pingcap/tidb/pkg/util/context"
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)
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// RangeFallbackHandler is used to handle range fallback.
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// If there are too many ranges, it'll fallback and add a warning.
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type RangeFallbackHandler interface {
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RecordRangeFallback(rangeMaxSize int64)
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SetSkipPlanCache(err error)
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contextutil.WarnHandler
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}
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// RangerContext is the context used to build range.
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type RangerContext struct {
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TypeCtx types.Context
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ErrCtx errctx.Context
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ExprCtx exprctx.BuildContext
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RangeFallbackHandler
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OptimizerFixControl map[uint64]string
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UseCache bool
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InPreparedPlanBuilding bool
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RegardNULLAsPoint bool
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OptPrefixIndexSingleScan bool
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}
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