github.com/matrixorigin/matrixone@v0.7.0/pkg/sql/parsers/tree/view.go (about)

     1  // Copyright 2021 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 tree
    16  
    17  type CreateView struct {
    18  	statementImpl
    19  	Name        *TableName
    20  	ColNames    IdentifierList
    21  	AsSource    *Select
    22  	IfNotExists bool
    23  }
    24  
    25  func (node *CreateView) Format(ctx *FmtCtx) {
    26  	ctx.WriteString("create ")
    27  
    28  	ctx.WriteString("view ")
    29  
    30  	if node.IfNotExists {
    31  		ctx.WriteString("if not exists ")
    32  	}
    33  
    34  	node.Name.Format(ctx)
    35  	if len(node.ColNames) > 0 {
    36  		ctx.WriteString(" (")
    37  		node.ColNames.Format(ctx)
    38  		ctx.WriteByte(')')
    39  	}
    40  	ctx.WriteString(" as ")
    41  	node.AsSource.Format(ctx)
    42  }
    43  
    44  func (node *CreateView) GetStatementType() string { return "Create View" }
    45  func (node *CreateView) GetQueryType() string     { return QueryTypeDDL }