mirror of https://github.com/grafana/grafana.git
85 lines
2.5 KiB
Go
85 lines
2.5 KiB
Go
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//go:build enterprise || pro
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package migrator
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import (
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"errors"
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"fmt"
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"cloud.google.com/go/spanner"
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"google.golang.org/grpc/codes"
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"xorm.io/core"
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)
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type SpannerDialect struct {
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BaseDialect
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d core.Dialect
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}
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func init() {
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supportedDialects[Spanner] = NewSpannerDialect
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}
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func NewSpannerDialect() Dialect {
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d := SpannerDialect{d: core.QueryDialect(Spanner)}
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d.BaseDialect.dialect = &d
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d.BaseDialect.driverName = Spanner
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return &d
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}
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func (s *SpannerDialect) AutoIncrStr() string { return s.d.AutoIncrStr() }
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func (s *SpannerDialect) Quote(name string) string { return s.d.Quote(name) }
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func (s *SpannerDialect) SupportEngine() bool { return s.d.SupportEngine() }
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func (s *SpannerDialect) IndexCheckSQL(tableName, indexName string) (string, []any) {
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return s.d.IndexCheckSql(tableName, indexName)
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}
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func (s *SpannerDialect) SQLType(col *Column) string {
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c := core.NewColumn(col.Name, "", core.SQLType{Name: col.Type}, col.Length, col.Length2, col.Nullable)
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return s.d.SqlType(c)
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}
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func (s *SpannerDialect) BatchSize() int { return 1000 }
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func (s *SpannerDialect) BooleanStr(b bool) string {
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if b {
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return "true"
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}
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return "false"
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}
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func (s *SpannerDialect) ErrorMessage(err error) string {
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return spanner.ErrDesc(spanner.ToSpannerError(err))
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}
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func (s *SpannerDialect) IsDeadlock(err error) bool {
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return spanner.ErrCode(spanner.ToSpannerError(err)) == codes.Aborted
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}
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func (s *SpannerDialect) IsUniqueConstraintViolation(err error) bool {
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return spanner.ErrCode(spanner.ToSpannerError(err)) == codes.AlreadyExists
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}
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func (s *SpannerDialect) CreateTableSQL(table *Table) string {
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t := core.NewEmptyTable()
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t.Name = table.Name
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t.PrimaryKeys = table.PrimaryKeys
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for _, c := range table.Columns {
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t.AddColumn(core.NewColumn(c.Name, c.Name, core.SQLType{Name: c.Type}, c.Length, c.Length2, c.Nullable))
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}
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return s.d.CreateTableSql(t, t.Name, "", "")
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}
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func (s *SpannerDialect) CreateIndexSQL(tableName string, index *Index) string {
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idx := core.NewIndex(index.Name, index.Type)
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idx.Cols = index.Cols
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return s.d.CreateIndexSql(tableName, idx)
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}
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func (s *SpannerDialect) UpsertMultipleSQL(tableName string, keyCols, updateCols []string, count int) (string, error) {
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return "", errors.New("not supported")
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}
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func (s *SpannerDialect) DropIndexSQL(tableName string, index *Index) string {
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return fmt.Sprintf("DROP INDEX %v", s.Quote(index.XName(tableName)))
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}
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func (s *SpannerDialect) DropTable(tableName string) string {
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return fmt.Sprintf("DROP TABLE %s", s.Quote(tableName))
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}
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