internal void CopyIndexFrom(SystemTransaction transaction, long indexId)
{
// Get the index name
IndexName indexName = GetIndexName(indexId);
// We get the index as a SystemTableIndex
SystemIndexSetDataSource indexSource = transaction.GetIndex(indexId);
// Check if an object with this name exists in this transaction,
if (IndexExists(indexName.TableName, indexName.Name)) {
// It does exist, so generate an error
throw new ApplicationException("Index copy failed, index '" + indexName + "' already exists");
}
// Copy the index to this transaction
indexSource.CopyEntirelyTo(this);
// Update the index id,
AddIndex(indexId, indexName.TableName, indexName.Name, user.Name, indexSource.Collation);
}
internal void CopyEntirelyTo(SystemTransaction destination)
{
SystemIndexSetDataSource destIndex = destination.GetIndex(index.Name.TableName, index.Name.Name);
if (index is ICommitableTableIndex) {
((ICommitableTableIndex)index).CopyTo(destIndex.index);
} else {
IRowCursor cursor = index.GetCursor();
while (cursor.MoveNext()) {
destIndex.Insert(cursor.Current);
}
}
}