github.com/matrixorigin/matrixone@v1.2.0/pkg/sql/parsers/tree/insert.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  // the INSERT statement.
    18  type Insert struct {
    19  	statementImpl
    20  	Table TableExpr
    21  
    22  	Accounts          IdentifierList
    23  	PartitionNames    IdentifierList
    24  	Columns           IdentifierList
    25  	Rows              *Select
    26  	OnDuplicateUpdate UpdateExprs
    27  	IsRestore         bool
    28  	FromDataTenantID  uint32
    29  }
    30  
    31  func (node *Insert) Format(ctx *FmtCtx) {
    32  	ctx.WriteString("insert into ")
    33  	node.Table.Format(ctx)
    34  
    35  	if node.PartitionNames != nil {
    36  		ctx.WriteString(" partition(")
    37  		node.PartitionNames.Format(ctx)
    38  		ctx.WriteByte(')')
    39  	}
    40  
    41  	if node.Columns != nil {
    42  		ctx.WriteString(" (")
    43  		node.Columns.Format(ctx)
    44  		ctx.WriteByte(')')
    45  	}
    46  	if node.Accounts != nil {
    47  		ctx.WriteString(" accounts(")
    48  		node.Accounts.Format(ctx)
    49  		ctx.WriteByte(')')
    50  	}
    51  	if node.Rows != nil {
    52  		ctx.WriteByte(' ')
    53  		node.Rows.Format(ctx)
    54  	}
    55  	if len(node.OnDuplicateUpdate) > 0 {
    56  		ctx.WriteString(" on duplicate key update ")
    57  		node.OnDuplicateUpdate.Format(ctx)
    58  	}
    59  }
    60  
    61  func (node *Insert) GetStatementType() string { return "Insert" }
    62  func (node *Insert) GetQueryType() string     { return QueryTypeDML }
    63  
    64  func NewInsert(t TableExpr, c IdentifierList, r *Select, p IdentifierList) *Insert {
    65  	return &Insert{
    66  		Table:          t,
    67  		Columns:        c,
    68  		Rows:           r,
    69  		PartitionNames: p,
    70  	}
    71  }
    72  
    73  type Assignment struct {
    74  	Column Identifier
    75  	Expr   Expr
    76  }