github.com/matrixorigin/matrixone@v1.2.0/pkg/sql/plan/build_transation.go (about)

     1  // Copyright 2021 - 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/pb/plan"
    19  	"github.com/matrixorigin/matrixone/pkg/sql/parsers/tree"
    20  )
    21  
    22  func buildBeginTransaction(stmt *tree.BeginTransaction, ctx CompilerContext) (*Plan, error) {
    23  	beginTransation := &plan.TransationBegin{}
    24  	switch stmt.Modes.RwMode {
    25  	case tree.READ_WRITE_MODE_NONE:
    26  		beginTransation.Mode = plan.TransationBegin_NONE
    27  	case tree.READ_WRITE_MODE_READ_ONLY:
    28  		beginTransation.Mode = plan.TransationBegin_READ_ONLY
    29  	case tree.READ_WRITE_MODE_READ_WRITE:
    30  		beginTransation.Mode = plan.TransationBegin_READ_WRITE
    31  	}
    32  
    33  	return &Plan{
    34  		Plan: &plan.Plan_Tcl{
    35  			Tcl: &plan.TransationControl{
    36  				TclType: plan.TransationControl_BEGIN,
    37  				Action: &plan.TransationControl_Begin{
    38  					Begin: beginTransation,
    39  				},
    40  			},
    41  		},
    42  	}, nil
    43  }
    44  
    45  func buildCommitTransaction(stmt *tree.CommitTransaction, ctx CompilerContext) (*Plan, error) {
    46  	commitTransation := &plan.TransationCommit{}
    47  	switch stmt.Type {
    48  	case tree.COMPLETION_TYPE_CHAIN:
    49  		commitTransation.CompletionType = plan.TransationCompletionType_CHAIN
    50  	case tree.COMPLETION_TYPE_RELEASE:
    51  		commitTransation.CompletionType = plan.TransationCompletionType_RELEASE
    52  	case tree.COMPLETION_TYPE_NO_CHAIN:
    53  		commitTransation.CompletionType = plan.TransationCompletionType_NO_CHAIN
    54  	}
    55  	return &Plan{
    56  		Plan: &plan.Plan_Tcl{
    57  			Tcl: &plan.TransationControl{
    58  				TclType: plan.TransationControl_COMMIT,
    59  				Action: &plan.TransationControl_Commit{
    60  					Commit: commitTransation,
    61  				},
    62  			},
    63  		},
    64  	}, nil
    65  }
    66  
    67  func buildRollbackTransaction(stmt *tree.RollbackTransaction, ctx CompilerContext) (*Plan, error) {
    68  	rollbackTransation := &plan.TransationRollback{}
    69  	switch stmt.Type {
    70  	case tree.COMPLETION_TYPE_CHAIN:
    71  		rollbackTransation.CompletionType = plan.TransationCompletionType_CHAIN
    72  	case tree.COMPLETION_TYPE_RELEASE:
    73  		rollbackTransation.CompletionType = plan.TransationCompletionType_RELEASE
    74  	case tree.COMPLETION_TYPE_NO_CHAIN:
    75  		rollbackTransation.CompletionType = plan.TransationCompletionType_NO_CHAIN
    76  	}
    77  	return &Plan{
    78  		Plan: &plan.Plan_Tcl{
    79  			Tcl: &plan.TransationControl{
    80  				TclType: plan.TransationControl_ROLLBACK,
    81  				Action: &plan.TransationControl_Rollback{
    82  					Rollback: rollbackTransation,
    83  				},
    84  			},
    85  		},
    86  	}, nil
    87  }