Support sort merge join #845
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Important Review skippedAuto reviews are limited to specific labels. Please check the settings in the CodeRabbit UI or the You can disable this status message by setting the WalkthroughThe recent updates primarily focus on enhancing the sort-merge join operations across several packages. Key changes include importing necessary packages, revising function logic for better error handling and data processing, and introducing a new Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant System
participant Database
User->>System: Initiate sort-merge join query
System->>Database: Fetch Left Table Metadata
Database-->>System: Return Left Table Metadata
System->>Database: Fetch Right Table Metadata
Database-->>System: Return Right Table Metadata
System->>System: Determine join keys and conditions
System->>Database: Execute Left Query
Database-->>System: Return Left Dataset
System->>Database: Execute Right Query
Database-->>System: Return Right Dataset
System->>System: Perform Sort-Merge Join
System-->>User: Return joined result
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Actionable comments posted: 7
Outside diff range and nitpick comments (7)
pkg/runtime/plan/dml/sort_merge_join.go (3)
1-10: Import optimizationYou can combine the import blocks into a single block for better readability.
import ( "context" "github.com/arana-db/arana/pkg/dataset" "github.com/arana-db/arana/pkg/proto" "github.com/arana-db/arana/pkg/resultx" "github.com/arana-db/arana/pkg/runtime/ast" )
12-21: Add comment forStmtfieldAdding a comment for the
Stmtfield will improve code readability and maintainability.type SortMergeJoin struct { // Stmt represents the SQL statement for the join operation Stmt *ast.SelectStatement LeftQuery proto.Plan RightQuery proto.Plan JoinType ast.JoinType LeftKey string RightKey string }
Line range hint
504-558: Usestrings.Builderinstead ofbytes.BufferConsider using
strings.Builderinstead ofbytes.Bufferfor better performance.- var b bytes.Buffer + var b strings.Builder row := rows.NewTextVirtualRow(realFields, res) - _, err := row.WriteTo(&b) + _, err := b.WriteString(row.String()) if err != nil { return nil } return mysql.NewTextRow(realFields, []byte(b.String()))pkg/proto/schema.go (1)
51-51: Add comment to explain assignmentAdding a comment to explain the assignment of
indexMetadata.ColumnNametotma.Indexeswill improve code readability.for _, indexMetadata := range indexMetadataList { // Assign index metadata to the map using the column name as the key tma.Indexes[indexMetadata.ColumnName] = indexMetadata }pkg/runtime/plan/dml/rename.go (1)
54-63: Add comments to explain logicAdding comments to explain the logic of updating field names based on the renaming list will improve code readability.
newFields := make([]proto.Field, 0, len(fields)) for i := 0; i < len(rp.RenameList); i++ { // Create a copy of the field and update its name f := *(fields[i].(*mysql.Field)) f.SetName(rp.RenameList[i]) f.SetOrgName(rp.RenameList[i]) newFields = append(newFields, &f) }pkg/schema/loader.go (1)
249-251: Add comments to explain processing logicAdding comments to explain the processing logic for the
COLUMN_NAMEfield will improve code readability.for { row, err = ds.Next() if errors.Is(err, io.EOF) { break } if err != nil { return nil, errors.WithStack(err) } if err = row.Scan(values); err != nil { return nil, errors.WithStack(err) } tableName := convertInterfaceToStrNullable(values[0]) // Retrieve and process the column name from the query result columnName := convertInterfaceToStrNullable(values[1]) indexName := convertInterfaceToStrNullable(values[2]) result[tableName] = append(result[tableName], &proto.IndexMetadata{ColumnName: columnName, Name: indexName}) }pkg/dataset/sort_merge_join.go (1)
Line range hint
1-36: Combine import blocksConsider combining the import blocks for better readability.
import ( "bytes" "io" "sync" "github.com/pkg/errors" "github.com/spf13/cast" "go.uber.org/atomic" "github.com/arana-db/arana/pkg/mysql/rows" "github.com/arana-db/arana/pkg/mysql" "github.com/arana-db/arana/pkg/proto" "github.com/arana-db/arana/pkg/runtime/ast" "github.com/arana-db/arana/pkg/util/log" )
Review details
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Review profile: CHILL
Files selected for processing (6)
- pkg/dataset/sort_merge_join.go (11 hunks)
- pkg/proto/schema.go (2 hunks)
- pkg/runtime/optimize/dml/select.go (4 hunks)
- pkg/runtime/plan/dml/rename.go (2 hunks)
- pkg/runtime/plan/dml/sort_merge_join.go (1 hunks)
- pkg/schema/loader.go (2 hunks)
Additional comments not posted (8)
pkg/runtime/plan/dml/sort_merge_join.go (2)
23-25: LGTM!The
Typemethod looks good and follows best practices.
Line range hint
254-256: LGTM!The
SetColumnmethod looks good and follows best practices.pkg/proto/schema.go (1)
68-69: LGTM!The addition of the
ColumnNamefield inIndexMetadatalooks good and follows best practices.pkg/runtime/plan/dml/rename.go (1)
94-94: LGTM!The
convFieldsfunction call looks good and follows best practices.pkg/schema/loader.go (1)
47-47: LGTM!The update to the
indexMetadataSQLquery looks good and follows best practices.pkg/runtime/optimize/dml/select.go (3)
614-624: LGTM! Added sort merge join plan.The code changes introduce the sort merge join plan. Ensure thorough testing.
536-536: Verify sort merge join condition.Ensure that the
shouldSortMergeJoinfunction correctly identifies conditions where sort merge join is applicable.Verification successful
Verified sort merge join condition.
The
shouldSortMergeJoinfunction correctly identifies conditions where a sort merge join is applicable by checking for non-nil indexes on the join keys in both table metadata.
pkg/runtime/optimize/dml/select.go: Lines 536-536Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the conditions for sort merge join. # Test: Search for the function definition and usage. Expect: Correct identification of sort merge join conditions. rg --type go 'func shouldSortMergeJoin' rg --type go 'shouldSortMergeJoin'Length of output: 479
Script:
#!/bin/bash # Extract the full implementation of the shouldSortMergeJoin function ast-grep --lang go --pattern $'func shouldSortMergeJoin($_, $_, $_, $_) bool { $$$ }' pkg/runtime/optimize/dml/select.goLength of output: 123
Script:
#!/bin/bash # Extract the full implementation of the shouldSortMergeJoin function using ripgrep rg --no-heading -A 20 'func shouldSortMergeJoin' pkg/runtime/optimize/dml/select.goLength of output: 667
732-734: Ensure index existence check is sufficient.The function checks if indexes exist for the join keys. Verify that this check is sufficient for all use cases.
Verification successful
Ensure index existence check is sufficient.
The function
shouldSortMergeJoinchecks if indexes exist for the join keys. Based on the definition ofIndexMetadata, this check is sufficient for all use cases.
proto.TableMetadatainpkg/proto/schema.goIndexMetadatainpkg/proto/schema.goScripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the index existence check in shouldSortMergeJoin. # Test: Search for the function definition and usage. Expect: Correct identification of index existence. rg --type go 'func shouldSortMergeJoin' rg --type go 'shouldSortMergeJoin'Length of output: 479
Script:
#!/bin/bash # Description: Gather further context around the usage of `shouldSortMergeJoin` and `proto.TableMetadata`. # Search for the definition of `proto.TableMetadata` to understand its structure. rg --type go 'type TableMetadata' # Search for the usage of `Indexes` field within `proto.TableMetadata`. rg --type go 'Indexes'Length of output: 2044
Script:
#!/bin/bash # Description: Verify the structure of `IndexMetadata` to ensure the index existence check is sufficient. # Search for the definition of `IndexMetadata` to understand its structure. rg --type go 'type IndexMetadata'Length of output: 83
Script:
#!/bin/bash # Description: Inspect the fields within `IndexMetadata` to ensure the index existence check is sufficient. # Print the definition of `IndexMetadata` to understand its structure. rg --type go 'type IndexMetadata struct' -A 10Length of output: 449
| var tbLeft0 = tableLeft.Suffix() | ||
| if shardsLeft != nil { | ||
| _, tbLeft0 = shardsLeft.Smallest() | ||
| } | ||
| leftTblMeta, err := loadMetadataByTable(ctx, tbLeft0) | ||
| if err != nil { | ||
| return nil, err | ||
| } |
There was a problem hiding this comment.
Add error context for better debugging.
When loading metadata for the left table, add context to the error message for easier debugging.
- return nil, err
+ return nil, errors.Wrapf(err, "failed to load metadata for left table: %s", tbLeft0)Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| var tbLeft0 = tableLeft.Suffix() | |
| if shardsLeft != nil { | |
| _, tbLeft0 = shardsLeft.Smallest() | |
| } | |
| leftTblMeta, err := loadMetadataByTable(ctx, tbLeft0) | |
| if err != nil { | |
| return nil, err | |
| } | |
| var tbLeft0 = tableLeft.Suffix() | |
| if shardsLeft != nil { | |
| _, tbLeft0 = shardsLeft.Smallest() | |
| } | |
| leftTblMeta, err = loadMetadataByTable(ctx, tbLeft0) | |
| if err != nil { | |
| return nil, errors.Wrapf(err, "failed to load metadata for left table: %s", tbLeft0) | |
| } |
| func fetchDs(plan proto.Plan, ctx context.Context, conn proto.VConn) proto.Dataset { | ||
| res, err := plan.ExecIn(ctx, conn) | ||
| if err != nil { | ||
| return nil | ||
| } | ||
|
|
||
| ds, err := res.Dataset() | ||
| if err != nil { | ||
| return nil | ||
| } | ||
|
|
||
| return ds |
There was a problem hiding this comment.
Log error before returning nil
Consider logging the error before returning nil to improve debugging.
- if err != nil {
- return nil
- }
+ if err != nil {
+ log.Errorf("Error executing plan: %v", err)
+ return nil
+ }Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| func fetchDs(plan proto.Plan, ctx context.Context, conn proto.VConn) proto.Dataset { | |
| res, err := plan.ExecIn(ctx, conn) | |
| if err != nil { | |
| return nil | |
| } | |
| ds, err := res.Dataset() | |
| if err != nil { | |
| return nil | |
| } | |
| return ds | |
| func fetchDs(plan proto.Plan, ctx context.Context, conn proto.VConn) proto.Dataset { | |
| res, err := plan.ExecIn(ctx, conn) | |
| if err != nil { | |
| log.Errorf("Error executing plan: %v", err) | |
| return nil | |
| } | |
| ds, err := res.Dataset() | |
| if err != nil { | |
| return nil | |
| } | |
| return ds |
| var tbRight0 = tableRight.Suffix() | ||
| if shardsRight != nil { | ||
| _, tbRight0 = shardsRight.Smallest() | ||
| } | ||
| rightTblMeta, err := loadMetadataByTable(ctx, tbRight0) | ||
| if err != nil { | ||
| return nil, err | ||
| } |
There was a problem hiding this comment.
Add error context for better debugging.
When loading metadata for the right table, add context to the error message for easier debugging.
- return nil, err
+ return nil, errors.Wrapf(err, "failed to load metadata for right table: %s", tbRight0)Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| var tbRight0 = tableRight.Suffix() | |
| if shardsRight != nil { | |
| _, tbRight0 = shardsRight.Smallest() | |
| } | |
| rightTblMeta, err := loadMetadataByTable(ctx, tbRight0) | |
| if err != nil { | |
| return nil, err | |
| } | |
| var tbRight0 = tableRight.Suffix() | |
| if shardsRight != nil { | |
| _, tbRight0 = shardsRight.Smallest() | |
| } | |
| rightTblMeta, err := loadMetadataByTable(ctx, tbRight0) | |
| if err != nil { | |
| return nil, errors.Wrapf(err, "failed to load metadata for right table: %s", tbRight0) | |
| } |
| func (h *SortMergeJoin) ExecIn(ctx context.Context, conn proto.VConn) (proto.Result, error) { | ||
| rightDs := fetchDs(h.RightQuery, ctx, conn) | ||
| leftDs := fetchDs(h.LeftQuery, ctx, conn) | ||
|
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||
| joinColumn := &dataset.JoinColumn{} | ||
| joinColumn.SetColumn(h.LeftKey) | ||
| ds, err := dataset.NewSortMergeJoin( | ||
| h.JoinType, | ||
| joinColumn, | ||
| rightDs, | ||
| leftDs, | ||
| ) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return resultx.New(resultx.WithDataset(ds)), nil | ||
| } |
There was a problem hiding this comment.
Improve error handling for fetchDs
Consider handling errors returned by fetchDs to improve robustness.
- rightDs := fetchDs(h.RightQuery, ctx, conn)
- leftDs := fetchDs(h.LeftQuery, ctx, conn)
+ rightDs, err := fetchDs(h.RightQuery, ctx, conn)
+ if err != nil {
+ return nil, err
+ }
+ leftDs, err := fetchDs(h.LeftQuery, ctx, conn)
+ if err != nil {
+ return nil, err
+ }Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| func (h *SortMergeJoin) ExecIn(ctx context.Context, conn proto.VConn) (proto.Result, error) { | |
| rightDs := fetchDs(h.RightQuery, ctx, conn) | |
| leftDs := fetchDs(h.LeftQuery, ctx, conn) | |
| joinColumn := &dataset.JoinColumn{} | |
| joinColumn.SetColumn(h.LeftKey) | |
| ds, err := dataset.NewSortMergeJoin( | |
| h.JoinType, | |
| joinColumn, | |
| rightDs, | |
| leftDs, | |
| ) | |
| if err != nil { | |
| return nil, err | |
| } | |
| return resultx.New(resultx.WithDataset(ds)), nil | |
| } | |
| func (h *SortMergeJoin) ExecIn(ctx context.Context, conn proto.VConn) (proto.Result, error) { | |
| rightDs, err := fetchDs(h.RightQuery, ctx, conn) | |
| if err != nil { | |
| return nil, err | |
| } | |
| leftDs, err := fetchDs(h.LeftQuery, ctx, conn) | |
| if err != nil { | |
| return nil, err | |
| } | |
| joinColumn := &dataset.JoinColumn{} | |
| joinColumn.SetColumn(h.LeftKey) | |
| ds, err := dataset.NewSortMergeJoin( | |
| h.JoinType, | |
| joinColumn, | |
| rightDs, | |
| leftDs, | |
| ) | |
| if err != nil { | |
| return nil, err | |
| } | |
| return resultx.New(resultx.WithDataset(ds)), nil | |
| } |
| setPlan := func(plan *dml.HashJoinPlan, buildPlan, probePlan proto.Plan, buildKey, probeKey string) { | ||
| plan.BuildKey = buildKey | ||
| plan.ProbeKey = probeKey | ||
| plan.BuildPlan = buildPlan | ||
| plan.ProbePlan = probePlan | ||
| } | ||
|
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||
| if join.Typ == ast.InnerJoin { | ||
| setPlan(hashJoinPlan, leftPlan, rightPlan, leftKey, rightKey) | ||
| hashJoinPlan.IsFilterProbeRow = true | ||
| } else { | ||
| return nil, errors.New("not support Join Type") | ||
| hashJoinPlan.IsFilterProbeRow = false | ||
| if join.Typ == ast.LeftJoin { | ||
| hashJoinPlan.IsReversedColumn = true | ||
| setPlan(hashJoinPlan, rightPlan, leftPlan, rightKey, leftKey) | ||
| } else if join.Typ == ast.RightJoin { | ||
| setPlan(hashJoinPlan, leftPlan, rightPlan, leftKey, rightKey) | ||
| } else { | ||
| return nil, errors.New("not support Join Type") | ||
| } |
There was a problem hiding this comment.
Consider refactoring for readability.
The nested if-else structure for setting the hash join plan can be refactored for better readability.
- if join.Typ == ast.InnerJoin {
- setPlan(hashJoinPlan, leftPlan, rightPlan, leftKey, rightKey)
- hashJoinPlan.IsFilterProbeRow = true
- } else {
- hashJoinPlan.IsFilterProbeRow = false
- if join.Typ == ast.LeftJoin {
- hashJoinPlan.IsReversedColumn = true
- setPlan(hashJoinPlan, rightPlan, leftPlan, rightKey, leftKey)
- } else if join.Typ == ast.RightJoin {
- setPlan(hashJoinPlan, leftPlan, rightPlan, leftKey, rightKey)
- } else {
- return nil, errors.New("not support Join Type")
- }
- }
+ switch join.Typ {
+ case ast.InnerJoin:
+ setPlan(hashJoinPlan, leftPlan, rightPlan, leftKey, rightKey)
+ hashJoinPlan.IsFilterProbeRow = true
+ case ast.LeftJoin:
+ hashJoinPlan.IsReversedColumn = true
+ setPlan(hashJoinPlan, rightPlan, leftPlan, rightKey, leftKey)
+ hashJoinPlan.IsFilterProbeRow = false
+ case ast.RightJoin:
+ setPlan(hashJoinPlan, leftPlan, rightPlan, leftKey, rightKey)
+ hashJoinPlan.IsFilterProbeRow = false
+ default:
+ return nil, errors.New("not support Join Type")
+ }Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| setPlan := func(plan *dml.HashJoinPlan, buildPlan, probePlan proto.Plan, buildKey, probeKey string) { | |
| plan.BuildKey = buildKey | |
| plan.ProbeKey = probeKey | |
| plan.BuildPlan = buildPlan | |
| plan.ProbePlan = probePlan | |
| } | |
| if join.Typ == ast.InnerJoin { | |
| setPlan(hashJoinPlan, leftPlan, rightPlan, leftKey, rightKey) | |
| hashJoinPlan.IsFilterProbeRow = true | |
| } else { | |
| return nil, errors.New("not support Join Type") | |
| hashJoinPlan.IsFilterProbeRow = false | |
| if join.Typ == ast.LeftJoin { | |
| hashJoinPlan.IsReversedColumn = true | |
| setPlan(hashJoinPlan, rightPlan, leftPlan, rightKey, leftKey) | |
| } else if join.Typ == ast.RightJoin { | |
| setPlan(hashJoinPlan, leftPlan, rightPlan, leftKey, rightKey) | |
| } else { | |
| return nil, errors.New("not support Join Type") | |
| } | |
| if join.Typ == ast.InnerJoin { | |
| setPlan(hashJoinPlan, leftPlan, rightPlan, leftKey, rightKey) | |
| hashJoinPlan.IsFilterProbeRow = true | |
| } else { | |
| hashJoinPlan.IsFilterProbeRow = false | |
| if join.Typ == ast.LeftJoin { | |
| hashJoinPlan.IsReversedColumn = true | |
| setPlan(hashJoinPlan, rightPlan, leftPlan, rightKey, leftKey) | |
| } else if join.Typ == ast.RightJoin { | |
| setPlan(hashJoinPlan, leftPlan, rightPlan, leftKey, rightKey) | |
| } else { | |
| return nil, errors.New("not support Join Type") | |
| } | |
| } | |
| ``` | |
| Updated code: | |
| ```suggestion | |
| switch join.Typ { | |
| case ast.InnerJoin: | |
| setPlan(hashJoinPlan, leftPlan, rightPlan, leftKey, rightKey) | |
| hashJoinPlan.IsFilterProbeRow = true | |
| case ast.LeftJoin: | |
| hashJoinPlan.IsReversedColumn = true | |
| setPlan(hashJoinPlan, rightPlan, leftPlan, rightKey, leftKey) | |
| hashJoinPlan.IsFilterProbeRow = false | |
| case ast.RightJoin: | |
| setPlan(hashJoinPlan, leftPlan, rightPlan, leftKey, rightKey) | |
| hashJoinPlan.IsFilterProbeRow = false | |
| default: | |
| return nil, errors.New("not support Join Type") | |
| } |
| //if len(rp.RenameList) != len(fields) { | ||
| // panic(fmt.Sprintf("the length of field doesn't match: expect=%d, actual=%d!", len(rp.RenameList), len(fields))) | ||
| //} |
There was a problem hiding this comment.
Remove commented-out code
Consider removing the commented-out code to clean up the codebase.
- //if len(rp.RenameList) != len(fields) {
- // panic(fmt.Sprintf("the length of field doesn't match: expect=%d, actual=%d!", len(rp.RenameList), len(fields)))
- //}Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| //if len(rp.RenameList) != len(fields) { | |
| // panic(fmt.Sprintf("the length of field doesn't match: expect=%d, actual=%d!", len(rp.RenameList), len(fields))) | |
| //} |
| // var renames map[int]struct{} | ||
| // for i := 0; i < len(rp.RenameList); i++ { | ||
| // rename := rp.RenameList[i] | ||
| // name := fields[i].Name() | ||
| // if rename == name { | ||
| // continue | ||
| // } | ||
| // if renames == nil { | ||
| // renames = make(map[int]struct{}) | ||
| // } | ||
| // renames[i] = struct{}{} | ||
| // } | ||
|
|
||
| newFields := make([]proto.Field, 0, len(fields)) | ||
| for i := 0; i < len(fields); i++ { | ||
| if _, ok := renames[i]; ok { | ||
| f := *(fields[i].(*mysql.Field)) | ||
| f.SetName(rp.RenameList[i]) | ||
| f.SetOrgName(rp.RenameList[i]) | ||
| newFields = append(newFields, &f) | ||
| } else { | ||
| newFields = append(newFields, fields[i]) | ||
| } | ||
| } | ||
| // if len(renames) < 1 { | ||
| // return fields | ||
| // } | ||
|
|
||
| // newFields := make([]proto.Field, 0, len(fields)) | ||
| // for i := 0; i < len(fields); i++ { | ||
| // if _, ok := renames[i]; ok { | ||
| // f := *(fields[i].(*mysql.Field)) | ||
| // f.SetName(rp.RenameList[i]) | ||
| // f.SetOrgName(rp.RenameList[i]) | ||
| // newFields = append(newFields, &f) | ||
| // } else { | ||
| // newFields = append(newFields, fields[i]) | ||
| // } | ||
| // } |
There was a problem hiding this comment.
Remove commented-out code
Consider removing the commented-out code to clean up the codebase.
- // var renames map[int]struct{}
- // for i := 0; i < len(rp.RenameList); i++ {
- // rename := rp.RenameList[i]
- // name := fields[i].Name()
- // if rename == name {
- // continue
- // }
- // if renames == nil {
- // renames = make(map[int]struct{})
- // }
- // renames[i] = struct{}{}
- // }
- // if len(renames) < 1 {
- // return fields
- // }
- // newFields := make([]proto.Field, 0, len(fields))
- // for i := 0; i < len(fields); i++ {
- // if _, ok := renames[i]; ok {
- // f := *(fields[i].(*mysql.Field))
- // f.SetName(rp.RenameList[i])
- // f.SetOrgName(rp.RenameList[i])
- // newFields = append(newFields, &f)
- // } else {
- // newFields = append(newFields, fields[i])
- // }
- // }Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // var renames map[int]struct{} | |
| // for i := 0; i < len(rp.RenameList); i++ { | |
| // rename := rp.RenameList[i] | |
| // name := fields[i].Name() | |
| // if rename == name { | |
| // continue | |
| // } | |
| // if renames == nil { | |
| // renames = make(map[int]struct{}) | |
| // } | |
| // renames[i] = struct{}{} | |
| // } | |
| newFields := make([]proto.Field, 0, len(fields)) | |
| for i := 0; i < len(fields); i++ { | |
| if _, ok := renames[i]; ok { | |
| f := *(fields[i].(*mysql.Field)) | |
| f.SetName(rp.RenameList[i]) | |
| f.SetOrgName(rp.RenameList[i]) | |
| newFields = append(newFields, &f) | |
| } else { | |
| newFields = append(newFields, fields[i]) | |
| } | |
| } | |
| // if len(renames) < 1 { | |
| // return fields | |
| // } | |
| // newFields := make([]proto.Field, 0, len(fields)) | |
| // for i := 0; i < len(fields); i++ { | |
| // if _, ok := renames[i]; ok { | |
| // f := *(fields[i].(*mysql.Field)) | |
| // f.SetName(rp.RenameList[i]) | |
| // f.SetOrgName(rp.RenameList[i]) | |
| // newFields = append(newFields, &f) | |
| // } else { | |
| // newFields = append(newFields, fields[i]) | |
| // } | |
| // } |
|
Seems you are using me but didn't get OPENAI_API_KEY seted in Variables/Secrets for this repo. you could follow readme for more information |
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- pkg/runtime/plan/dml/sort_merge_join.go (1 hunks)
Additional comments not posted (6)
pkg/runtime/plan/dml/sort_merge_join.go (6)
1-16: License Header: Ensure ComplianceThe license header is present and seems compliant with the Apache License, Version 2.0.
18-27: Imports: Confirm UsageAll imported packages are used in the code. No unnecessary imports found.
29-38: Struct Definition:SortMergeJoinThe
SortMergeJoinstruct is well-defined, and all fields are used in the methods.
40-42: Method Definition:Type()The
Type()method correctly returns the plan type asproto.PlanTypeQuery.
44-61: Improve error handling forfetchDsConsider handling errors returned by
fetchDsto improve robustness.- rightDs := fetchDs(h.RightQuery, ctx, conn) - leftDs := fetchDs(h.LeftQuery, ctx, conn) + rightDs, err := fetchDs(h.RightQuery, ctx, conn) + if err != nil { + return nil, err + } + leftDs, err := fetchDs(h.LeftQuery, ctx, conn) + if err != nil { + return nil, err + }
63-74: Log error before returningnilConsider logging the error before returning
nilto improve debugging.- if err != nil { - return nil - } + if err != nil { + log.Errorf("Error executing plan: %v", err) + return nil + }
|
Seems you are using me but didn't get OPENAI_API_KEY seted in Variables/Secrets for this repo. you could follow readme for more information |
|
Seems you are using me but didn't get OPENAI_API_KEY seted in Variables/Secrets for this repo. you could follow readme for more information |
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Actionable comments posted: 0
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (2)
- pkg/dataset/sort_merge_join.go (11 hunks)
- pkg/runtime/plan/dml/sort_merge_join.go (1 hunks)
Additional comments not posted (15)
pkg/runtime/plan/dml/sort_merge_join.go (5)
46-63: Improve error handling forfetchDs.Consider handling errors returned by
fetchDsto improve robustness.- rightDs := fetchDs(h.RightQuery, ctx, conn) - leftDs := fetchDs(h.LeftQuery, ctx, conn) + rightDs, err := fetchDs(h.RightQuery, ctx, conn) + if err != nil { + return nil, err + } + leftDs, err := fetchDs(h.LeftQuery, ctx, conn) + if err != nil { + return nil, err + }
65-76: Log error before returningnil.Consider logging the error before returning
nilto improve debugging.- if err != nil { - return nil - } + if err != nil { + log.Errorf("Error executing plan: %v", err) + return nil + }
65-76: Log error before returningnil.Consider logging the error before returning
nilto improve debugging.- if err != nil { - return nil - } + if err != nil { + log.Errorf("Error fetching dataset: %v", err) + return nil + }
42-44: LGTM!The method is straightforward and correctly returns the plan type.
31-40: LGTM!The struct is well-defined and follows proper conventions.
pkg/dataset/sort_merge_join.go (10)
82-83: Improve field handling.Consider using
copyinstead ofappendforfields.- fields := append(fields, innerFields...) - fields = append(fields, outerFields...) + fields := make([]proto.Field, len(innerFields)+len(outerFields)) + copy(fields, innerFields) + copy(fields[len(innerFields):], outerFields)
254-256: LGTM!The method is straightforward and correctly sets the column.
272-274: LGTM!The method handles errors correctly and follows proper conventions.
324-324: LGTM!The method handles errors correctly and follows proper conventions.
486-486: LGTM!The method handles errors correctly and follows proper conventions.
486-486: LGTM!The method calls the
leftJoinmethod, ensuring consistency in join logic.
486-486: LGTM!The method handles errors correctly and follows proper conventions.
486-486: LGTM!The method handles errors correctly and follows proper conventions.
Line range hint
509-557: LGTM!The method handles errors correctly and follows proper conventions.
607-607: LGTM!The method handles errors correctly and follows proper conventions.
|
Seems you are using me but didn't get OPENAI_API_KEY seted in Variables/Secrets for this repo. you could follow readme for more information |
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Files selected for processing (1)
- pkg/dataset/sort_merge_join.go (11 hunks)
Files skipped from review as they are similar to previous changes (1)
- pkg/dataset/sort_merge_join.go
|
这个 PR 先别着急合并，兔子留的一些 comment 非常好，希望继续改进下 |
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Which issue(s) this PR fixes:
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