Only use NOWAIT on MySQL 8.

Author: arthurschreiber

go/logic/applier.go

@@ -631,6 +631,8 @@ func (this *Applier) ApplyIterationInsertQuery() (chunkSize int64, rowsAffected
 		this.migrationContext.MigrationIterationRangeMaxValues.AbstractValues(),
 		this.migrationContext.GetIteration() == 0,
 		this.migrationContext.IsTransactionalTable(),
+		// TODO: Don't hardcode this
+		strings.HasPrefix(this.migrationContext.ApplierMySQLVersion, "8."),
 	)
 	if err != nil {
 		return chunkSize, rowsAffected, duration, err

go/sql/builder.go

@@ -182,7 +182,7 @@ func BuildRangePreparedComparison(columns *ColumnList, args []interface{}, compa
 	return BuildRangeComparison(columns.Names(), values, args, comparisonSign)
 }
 
-func BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName string, sharedColumns []string, mappedSharedColumns []string, uniqueKey string, uniqueKeyColumns *ColumnList, rangeStartValues, rangeEndValues []string, rangeStartArgs, rangeEndArgs []interface{}, includeRangeStartValues bool, transactionalTable bool) (result string, explodedArgs []interface{}, err error) {
+func BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName string, sharedColumns []string, mappedSharedColumns []string, uniqueKey string, uniqueKeyColumns *ColumnList, rangeStartValues, rangeEndValues []string, rangeStartArgs, rangeEndArgs []interface{}, includeRangeStartValues bool, transactionalTable bool, noWait bool) (result string, explodedArgs []interface{}, err error) {
 	if len(sharedColumns) == 0 {
 		return "", explodedArgs, fmt.Errorf("Got 0 shared columns in BuildRangeInsertQuery")
 	}
@@ -214,7 +214,11 @@ func BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName strin
 	explodedArgs = append(explodedArgs, rangeExplodedArgs...)
 	transactionalClause := ""
 	if transactionalTable {
-		transactionalClause = "for share nowait"
+		if noWait {
+			transactionalClause = "for share nowait"
+		} else {
+			transactionalClause = "lock in share mode"
+		}
 	}
 	rangeEndComparison, rangeExplodedArgs, err := BuildRangeComparison(uniqueKeyColumns.Names(), rangeEndValues, rangeEndArgs, LessThanOrEqualsComparisonSign)
 	if err != nil {
@@ -241,10 +245,10 @@ func BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName strin
 	return result, explodedArgs, nil
 }
 
-func BuildRangeInsertPreparedQuery(databaseName, originalTableName, ghostTableName string, sharedColumns []string, mappedSharedColumns []string, uniqueKey string, uniqueKeyColumns *ColumnList, rangeStartArgs, rangeEndArgs []interface{}, includeRangeStartValues bool, transactionalTable bool) (result string, explodedArgs []interface{}, err error) {
+func BuildRangeInsertPreparedQuery(databaseName, originalTableName, ghostTableName string, sharedColumns []string, mappedSharedColumns []string, uniqueKey string, uniqueKeyColumns *ColumnList, rangeStartArgs, rangeEndArgs []interface{}, includeRangeStartValues bool, transactionalTable bool, noWait bool) (result string, explodedArgs []interface{}, err error) {
 	rangeStartValues := buildColumnsPreparedValues(uniqueKeyColumns)
 	rangeEndValues := buildColumnsPreparedValues(uniqueKeyColumns)
-	return BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName, sharedColumns, mappedSharedColumns, uniqueKey, uniqueKeyColumns, rangeStartValues, rangeEndValues, rangeStartArgs, rangeEndArgs, includeRangeStartValues, transactionalTable)
+	return BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName, sharedColumns, mappedSharedColumns, uniqueKey, uniqueKeyColumns, rangeStartValues, rangeEndValues, rangeStartArgs, rangeEndArgs, includeRangeStartValues, transactionalTable, noWait)
 }
 
 func BuildUniqueKeyRangeEndPreparedQueryViaOffset(databaseName, tableName string, uniqueKeyColumns *ColumnList, rangeStartArgs, rangeEndArgs []interface{}, chunkSize int64, includeRangeStartValues bool, hint string) (result string, explodedArgs []interface{}, err error) {

go/sql/builder_test.go

@@ -171,7 +171,7 @@ func TestBuildRangeInsertQuery(t *testing.T) {
 		rangeStartArgs := []interface{}{3}
 		rangeEndArgs := []interface{}{103}
 
-		query, explodedArgs, err := BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName, sharedColumns, sharedColumns, uniqueKey, uniqueKeyColumns, rangeStartValues, rangeEndValues, rangeStartArgs, rangeEndArgs, true, true)
+		query, explodedArgs, err := BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName, sharedColumns, sharedColumns, uniqueKey, uniqueKeyColumns, rangeStartValues, rangeEndValues, rangeStartArgs, rangeEndArgs, true, true, true)
 		require.NoError(t, err)
 		expected := `
 			insert /* gh-ost mydb.tbl */ ignore
@@ -199,7 +199,7 @@ func TestBuildRangeInsertQuery(t *testing.T) {
 		rangeStartArgs := []interface{}{3, 17}
 		rangeEndArgs := []interface{}{103, 117}
 
-		query, explodedArgs, err := BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName, sharedColumns, sharedColumns, uniqueKey, uniqueKeyColumns, rangeStartValues, rangeEndValues, rangeStartArgs, rangeEndArgs, true, true)
+		query, explodedArgs, err := BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName, sharedColumns, sharedColumns, uniqueKey, uniqueKeyColumns, rangeStartValues, rangeEndValues, rangeStartArgs, rangeEndArgs, true, true, true)
 		require.NoError(t, err)
 		expected := `
 			insert /* gh-ost mydb.tbl */ ignore
@@ -241,7 +241,7 @@ func TestBuildRangeInsertQueryRenameMap(t *testing.T) {
 		rangeStartArgs := []interface{}{3}
 		rangeEndArgs := []interface{}{103}
 
-		query, explodedArgs, err := BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName, sharedColumns, mappedSharedColumns, uniqueKey, uniqueKeyColumns, rangeStartValues, rangeEndValues, rangeStartArgs, rangeEndArgs, true, true)
+		query, explodedArgs, err := BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName, sharedColumns, mappedSharedColumns, uniqueKey, uniqueKeyColumns, rangeStartValues, rangeEndValues, rangeStartArgs, rangeEndArgs, true, true, true)
 		require.NoError(t, err)
 		expected := `
 			insert /* gh-ost mydb.tbl */ ignore
@@ -270,7 +270,7 @@ func TestBuildRangeInsertQueryRenameMap(t *testing.T) {
 		rangeStartArgs := []interface{}{3, 17}
 		rangeEndArgs := []interface{}{103, 117}
 
-		query, explodedArgs, err := BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName, sharedColumns, mappedSharedColumns, uniqueKey, uniqueKeyColumns, rangeStartValues, rangeEndValues, rangeStartArgs, rangeEndArgs, true, true)
+		query, explodedArgs, err := BuildRangeInsertQuery(databaseName, originalTableName, ghostTableName, sharedColumns, mappedSharedColumns, uniqueKey, uniqueKeyColumns, rangeStartValues, rangeEndValues, rangeStartArgs, rangeEndArgs, true, true, true)
 		require.NoError(t, err)
 		expected := `
 			insert /* gh-ost mydb.tbl */ ignore
@@ -305,7 +305,7 @@ func TestBuildRangeInsertPreparedQuery(t *testing.T) {
 		rangeStartArgs := []interface{}{3, 17}
 		rangeEndArgs := []interface{}{103, 117}
 
-		query, explodedArgs, err := BuildRangeInsertPreparedQuery(databaseName, originalTableName, ghostTableName, sharedColumns, sharedColumns, uniqueKey, uniqueKeyColumns, rangeStartArgs, rangeEndArgs, true, true)
+		query, explodedArgs, err := BuildRangeInsertPreparedQuery(databaseName, originalTableName, ghostTableName, sharedColumns, sharedColumns, uniqueKey, uniqueKeyColumns, rangeStartArgs, rangeEndArgs, true, true, true)
 		require.NoError(t, err)
 		expected := `
 			insert /* gh-ost mydb.tbl */ ignore