private static List<IndexSchema> GetIndexes(SqlConnection con, TableSchema eTable)
{
var indexes = new List<IndexSchema>();
var aHash = new Dictionary<string, bool>();
string[] restrict4 = {null, null, null, null};
// Indexes
restrict4[0] = null;
restrict4[1] = null;
restrict4[2] = eTable.Name;
restrict4[3] = null;
var dtShema = SqlSchemaFactory.GetSchema(con, "Indexes", restrict4);
for (var i = 0; i < dtShema.Rows.Count; i++)
{
var row = dtShema.Rows[i];
if (Convert.ToBoolean(row["IS_STATISTICS"], CultureInfo.InvariantCulture) ||
Convert.ToBoolean(row["IS_AUTOSTATISTICS"], CultureInfo.InvariantCulture) ||
Convert.ToBoolean(row["IS_HYPOTTETICAL"], CultureInfo.InvariantCulture))
continue;
var cName = row["INDEX_NAME"].ToString();
if (eTable.IsKeyExist(cName, ConstraintType.Unique) ||
eTable.IsKeyExist(cName, ConstraintType.KeyPrimary) ||
eTable.IsKeyExist(cName, ConstraintType.KeyForeign))
continue;
if (aHash.ContainsKey(cName))
continue;
var eIndex = new IndexSchema();
aHash.Add(cName, true);
eIndex.Name = cName;
eIndex.Unique = Convert.ToBoolean(row["IS_UNIQUE"], CultureInfo.InvariantCulture);
eIndex.Clustered = Convert.ToBoolean(row["IS_CLUSTERED"], CultureInfo.InvariantCulture);
//eIndex.isActive = !Convert.ToBoolean(cRow["IS_INACTIVE"], CultureInfo.InvariantCulture);
var dtv = dtShema.DefaultView;
dtv.RowFilter = string.Format("INDEX_NAME = '{0}'", cName);
dtv.Sort = "COLUMN_ORDINAL_POSITION ASC";
var columns = "";
for (var y = 0; y < dtv.Count; y++)
columns += (dtv[y]["COLUMN_NAME"] +
(Convert.ToBoolean(dtv[y]["IS_DESCENDING"], CultureInfo.InvariantCulture) ? " DESC" : "") +
", ");
columns = columns.Remove(columns.Length - 2, 2);
eIndex.Columns = columns;
indexes.Add(eIndex);
}
return indexes;
}
