26 lines
1.2 KiB
Go
26 lines
1.2 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 util
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import "github.com/pingcap/tidb/pkg/planner/core/base"
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// this file is used for passing function pointer at init(){} to avoid some import cycles.
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// HasMaxOneRowUtil is used in baseLogicalPlan implementation of LogicalPlan interface, while
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// the original HasMaxOneRowUtil has some dependency of original core pkg: like Datasource which
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// hasn't been moved out of core pkg, so associative func pointer is introduced.
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// todo: (1) arenatlx, remove this func pointer when concrete Logical Operators moved out.
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var HasMaxOneRowUtil func(p base.LogicalPlan, childMaxOneRow []bool) bool
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