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[CHORE] Remove Microsoft SQL Server Support

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- Per https://codeberg.org/forgejo/discussions/issues/122
This commit is contained in:
Gusted 2024-04-04 18:02:24 +02:00
parent af47c583b4
commit 2d9afd0c21
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GPG key ID: FD821B732837125F
70 changed files with 70 additions and 789 deletions
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91
models/migrations/base/db.go
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@ -89,13 +89,6 @@ func RecreateTable(sess *xorm.Session, bean any) error {
hasID = hasID || (column.IsPrimaryKey && column.IsAutoIncrement)
}
if hasID && setting.Database.Type.IsMSSQL() {
if _, err := sess.Exec(fmt.Sprintf("SET IDENTITY_INSERT `%s` ON", tempTableName)); err != nil {
log.Error("Unable to set identity insert for table %s. Error: %v", tempTableName, err)
return err
}
}
sqlStringBuilder := &strings.Builder{}
_, _ = sqlStringBuilder.WriteString("INSERT INTO `")
_, _ = sqlStringBuilder.WriteString(tempTableName)
@ -143,13 +136,6 @@ func RecreateTable(sess *xorm.Session, bean any) error {
return err
}
if hasID && setting.Database.Type.IsMSSQL() {
if _, err := sess.Exec(fmt.Sprintf("SET IDENTITY_INSERT `%s` OFF", tempTableName)); err != nil {
log.Error("Unable to switch off identity insert for table %s. Error: %v", tempTableName, err)
return err
}
}
switch {
case setting.Database.Type.IsSQLite3():
// SQLite will drop all the constraints on the old table
@ -296,19 +282,6 @@ func RecreateTable(sess *xorm.Session, bean any) error {
}
case setting.Database.Type.IsMSSQL():
// MSSQL will drop all the constraints on the old table
if _, err := sess.Exec(fmt.Sprintf("DROP TABLE `%s`", tableName)); err != nil {
log.Error("Unable to drop old table %s. Error: %v", tableName, err)
return err
}
// MSSQL sp_rename will move all the constraints from the temporary table to the new table
if _, err := sess.Exec(fmt.Sprintf("sp_rename `%s`,`%s`", tempTableName, tableName)); err != nil {
log.Error("Unable to rename %s to %s. Error: %v", tempTableName, tableName, err)
return err
}
default:
log.Fatal("Unrecognized DB")
}
@ -444,40 +417,6 @@ func DropTableColumns(sess *xorm.Session, tableName string, columnNames ...strin
if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `%s` %s", tableName, cols)); err != nil {
return fmt.Errorf("Drop table `%s` columns %v: %v", tableName, columnNames, err)
}
case setting.Database.Type.IsMSSQL():
cols := ""
for _, col := range columnNames {
if cols != "" {
cols += ", "
}
cols += "`" + strings.ToLower(col) + "`"
}
sql := fmt.Sprintf("SELECT Name FROM sys.default_constraints WHERE parent_object_id = OBJECT_ID('%[1]s') AND parent_column_id IN (SELECT column_id FROM sys.columns WHERE LOWER(name) IN (%[2]s) AND object_id = OBJECT_ID('%[1]s'))",
tableName, strings.ReplaceAll(cols, "`", "'"))
constraints := make([]string, 0)
if err := sess.SQL(sql).Find(&constraints); err != nil {
return fmt.Errorf("Find constraints: %v", err)
}
for _, constraint := range constraints {
if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `%s` DROP CONSTRAINT `%s`", tableName, constraint)); err != nil {
return fmt.Errorf("Drop table `%s` default constraint `%s`: %v", tableName, constraint, err)
}
}
sql = fmt.Sprintf("SELECT DISTINCT Name FROM sys.indexes INNER JOIN sys.index_columns ON indexes.index_id = index_columns.index_id AND indexes.object_id = index_columns.object_id WHERE indexes.object_id = OBJECT_ID('%[1]s') AND index_columns.column_id IN (SELECT column_id FROM sys.columns WHERE LOWER(name) IN (%[2]s) AND object_id = OBJECT_ID('%[1]s'))",
tableName, strings.ReplaceAll(cols, "`", "'"))
constraints = make([]string, 0)
if err := sess.SQL(sql).Find(&constraints); err != nil {
return fmt.Errorf("Find constraints: %v", err)
}
for _, constraint := range constraints {
if _, err := sess.Exec(fmt.Sprintf("DROP INDEX `%[2]s` ON `%[1]s`", tableName, constraint)); err != nil {
return fmt.Errorf("Drop index `%[2]s` on `%[1]s`: %v", tableName, constraint, err)
}
}
if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `%s` DROP COLUMN %s", tableName, cols)); err != nil {
return fmt.Errorf("Drop table `%s` columns %v: %v", tableName, columnNames, err)
}
default:
log.Fatal("Unrecognized DB")
}
@ -489,21 +428,6 @@ func DropTableColumns(sess *xorm.Session, tableName string, columnNames ...strin
func ModifyColumn(x *xorm.Engine, tableName string, col *schemas.Column) error {
var indexes map[string]*schemas.Index
var err error
// MSSQL have to remove index at first, otherwise alter column will fail
// ref. https://sqlzealots.com/2018/05/09/error-message-the-index-is-dependent-on-column-alter-table-alter-column-failed-because-one-or-more-objects-access-this-column/
if x.Dialect().URI().DBType == schemas.MSSQL {
indexes, err = x.Dialect().GetIndexes(x.DB(), context.Background(), tableName)
if err != nil {
return err
}
for _, index := range indexes {
_, err = x.Exec(x.Dialect().DropIndexSQL(tableName, index))
if err != nil {
return err
}
}
}
defer func() {
for _, index := range indexes {
@ -612,21 +536,6 @@ func deleteDB() error {
}
return nil
}
case setting.Database.Type.IsMSSQL():
host, port := setting.ParseMSSQLHostPort(setting.Database.Host)
db, err := sql.Open("mssql", fmt.Sprintf("server=%s; port=%s; database=%s; user id=%s; password=%s;",
host, port, "master", setting.Database.User, setting.Database.Passwd))
if err != nil {
return err
}
defer db.Close()
if _, err = db.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS [%s]", setting.Database.Name)); err != nil {
return err
}
if _, err = db.Exec(fmt.Sprintf("CREATE DATABASE [%s]", setting.Database.Name)); err != nil {
return err
}
}
return nil