Golang Txn.Run Examples

Example #1

File: truncate.go Project: CubeLite/cockroach

// truncateTable truncates the data of a table.
// It deletes a range of data for the table, which includes the PK and all
// indexes.
func truncateTable(tableDesc *sqlbase.TableDescriptor, txn *client.Txn) error {
	tablePrefix := keys.MakeTablePrefix(uint32(tableDesc.ID))

	// Delete rows and indexes starting with the table's prefix.
	tableStartKey := roachpb.Key(tablePrefix)
	tableEndKey := tableStartKey.PrefixEnd()
	if log.V(2) {
		log.Infof("DelRange %s - %s", tableStartKey, tableEndKey)
	}
	b := client.Batch{}
	b.DelRange(tableStartKey, tableEndKey, false)
	return txn.Run(&b)
}