github.com/matrixorigin/matrixone@v0.7.0/pkg/sql/plan/partition_binder.go (about)

     1  // Copyright 2022 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package plan
    16  
    17  import (
    18  	"github.com/matrixorigin/matrixone/pkg/common/moerr"
    19  	"github.com/matrixorigin/matrixone/pkg/pb/plan"
    20  	"github.com/matrixorigin/matrixone/pkg/sql/parsers/tree"
    21  )
    22  
    23  func NewPartitionBinder(builder *QueryBuilder, ctx *BindContext) *PartitionBinder {
    24  	p := &PartitionBinder{}
    25  	p.sysCtx = builder.GetContext()
    26  	p.builder = builder
    27  	p.ctx = ctx
    28  	p.impl = p
    29  	return p
    30  }
    31  
    32  func (p *PartitionBinder) BindExpr(expr tree.Expr, i int32, b bool) (*plan.Expr, error) {
    33  	return p.baseBindExpr(expr, i, b)
    34  }
    35  
    36  func (p *PartitionBinder) BindColRef(name *tree.UnresolvedName, i int32, b bool) (*plan.Expr, error) {
    37  	return p.baseBindColRef(name, i, b)
    38  }
    39  
    40  func (p *PartitionBinder) BindAggFunc(s string, expr *tree.FuncExpr, i int32, b bool) (*plan.Expr, error) {
    41  	return nil, moerr.NewSyntaxError(p.GetContext(), "aggregate functions not allowed in partition clause")
    42  }
    43  
    44  func (p *PartitionBinder) BindWinFunc(s string, expr *tree.FuncExpr, i int32, b bool) (*plan.Expr, error) {
    45  	return nil, moerr.NewSyntaxError(p.GetContext(), "window functions not allowed in partition clause")
    46  }
    47  
    48  func (p *PartitionBinder) BindSubquery(subquery *tree.Subquery, b bool) (*plan.Expr, error) {
    49  	return nil, moerr.NewSyntaxError(p.GetContext(), "subquery not allowed in partition clause")
    50  }