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Pass entire sql.UniqueKey

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This commit is contained in:
Tim Vaillancourt 2022-12-28 23:53:20 +01:00
parent 846b20edd1
commit 1bc9c5104b
3 changed files with 16 additions and 18 deletions
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6
go/logic/applier.go
View File

@ -472,8 +472,7 @@ func (this *Applier) ExecuteThrottleQuery() (int64, error) {
// readMigrationMinValues returns the minimum values to be iterated on rowcopy
func (this *Applier) readMigrationMinValues(tx *gosql.Tx, uniqueKey *sql.UniqueKey) error {
this.migrationContext.Log.Debugf("Reading migration range according to key: %s", uniqueKey.Name)
query, err := sql.BuildUniqueKeyMinValuesPreparedQuery(this.migrationContext.DatabaseName, this.migrationContext.OriginalTableName,
this.migrationContext.UniqueKey.Name, &uniqueKey.Columns)
query, err := sql.BuildUniqueKeyMinValuesPreparedQuery(this.migrationContext.DatabaseName, this.migrationContext.OriginalTableName, uniqueKey)
if err != nil {
return err
}
@ -498,8 +497,7 @@ func (this *Applier) readMigrationMinValues(tx *gosql.Tx, uniqueKey *sql.UniqueK
// readMigrationMaxValues returns the maximum values to be iterated on rowcopy
func (this *Applier) readMigrationMaxValues(tx *gosql.Tx, uniqueKey *sql.UniqueKey) error {
this.migrationContext.Log.Debugf("Reading migration range according to key: %s", uniqueKey.Name)
query, err := sql.BuildUniqueKeyMaxValuesPreparedQuery(this.migrationContext.DatabaseName, this.migrationContext.OriginalTableName,
this.migrationContext.UniqueKey.Name, &uniqueKey.Columns)
query, err := sql.BuildUniqueKeyMaxValuesPreparedQuery(this.migrationContext.DatabaseName, this.migrationContext.OriginalTableName, uniqueKey)
if err != nil {
return err
}

18
go/sql/builder.go
View File

@ -352,24 +352,24 @@ func BuildUniqueKeyRangeEndPreparedQueryViaTemptable(databaseName, tableName str
return result, explodedArgs, nil
}
func BuildUniqueKeyMinValuesPreparedQuery(databaseName, tableName, indexName string, uniqueKeyColumns *ColumnList) (string, error) {
return buildUniqueKeyMinMaxValuesPreparedQuery(databaseName, tableName, indexName, uniqueKeyColumns, "asc")
func BuildUniqueKeyMinValuesPreparedQuery(databaseName, tableName string, uniqueKey *UniqueKey) (string, error) {
return buildUniqueKeyMinMaxValuesPreparedQuery(databaseName, tableName, uniqueKey, "asc")
}
func BuildUniqueKeyMaxValuesPreparedQuery(databaseName, tableName, indexName string, uniqueKeyColumns *ColumnList) (string, error) {
return buildUniqueKeyMinMaxValuesPreparedQuery(databaseName, tableName, indexName, uniqueKeyColumns, "desc")
func BuildUniqueKeyMaxValuesPreparedQuery(databaseName, tableName string, uniqueKey *UniqueKey) (string, error) {
return buildUniqueKeyMinMaxValuesPreparedQuery(databaseName, tableName, uniqueKey, "desc")
}
func buildUniqueKeyMinMaxValuesPreparedQuery(databaseName, tableName, indexName string, uniqueKeyColumns *ColumnList, order string) (string, error) {
if uniqueKeyColumns.Len() == 0 {
func buildUniqueKeyMinMaxValuesPreparedQuery(databaseName, tableName string, uniqueKey *UniqueKey, order string) (string, error) {
if uniqueKey.Columns.Len() == 0 {
return "", fmt.Errorf("Got 0 columns in BuildUniqueKeyMinMaxValuesPreparedQuery")
}
databaseName = EscapeName(databaseName)
tableName = EscapeName(tableName)
uniqueKeyColumnNames := duplicateNames(uniqueKeyColumns.Names())
uniqueKeyColumnNames := duplicateNames(uniqueKey.Columns.Names())
uniqueKeyColumnOrder := make([]string, len(uniqueKeyColumnNames))
for i, column := range uniqueKeyColumns.Columns() {
for i, column := range uniqueKey.Columns.Columns() {
uniqueKeyColumnNames[i] = EscapeName(uniqueKeyColumnNames[i])
if column.Type == EnumColumnType {
uniqueKeyColumnOrder[i] = fmt.Sprintf("concat(%s) %s", uniqueKeyColumnNames[i], order)
@ -385,7 +385,7 @@ func buildUniqueKeyMinMaxValuesPreparedQuery(databaseName, tableName, indexName
order by %s limit 1
`,
databaseName, tableName, strings.Join(uniqueKeyColumnNames, ", "),
databaseName, tableName, indexName,
databaseName, tableName, uniqueKey.Name,
strings.Join(uniqueKeyColumnOrder, ", "),
)
return query, nil

10
go/sql/builder_test.go
View File

@ -1,5 +1,5 @@
/*
Copyright 2016 GitHub Inc.
Copyright 2022 GitHub Inc.
See https://github.com/github/gh-ost/blob/master/LICENSE
*/
@ -309,10 +309,10 @@ func TestBuildUniqueKeyRangeEndPreparedQuery(t *testing.T) {
func TestBuildUniqueKeyMinValuesPreparedQuery(t *testing.T) {
databaseName := "mydb"
originalTableName := "tbl"
indexName := "PRIMARY"
uniqueKeyColumns := NewColumnList([]string{"name", "position"})
columnList := NewColumnList([]string{"name", "position"})
uniqueKey := &UniqueKey{Name: "PRIMARY", Columns: *columnList}
{
query, err := BuildUniqueKeyMinValuesPreparedQuery(databaseName, originalTableName, indexName, uniqueKeyColumns)
query, err := BuildUniqueKeyMinValuesPreparedQuery(databaseName, originalTableName, uniqueKey)
test.S(t).ExpectNil(err)
expected := `
select /* gh-ost mydb.tbl */ name, position
@ -326,7 +326,7 @@ func TestBuildUniqueKeyMinValuesPreparedQuery(t *testing.T) {
test.S(t).ExpectEquals(normalizeQuery(query), normalizeQuery(expected))
}
{
query, err := BuildUniqueKeyMaxValuesPreparedQuery(databaseName, originalTableName, indexName, uniqueKeyColumns)
query, err := BuildUniqueKeyMaxValuesPreparedQuery(databaseName, originalTableName, uniqueKey)
test.S(t).ExpectNil(err)
expected := `
select /* gh-ost mydb.tbl */ name, position