System.Data.SQLite

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Overview
Comment:Schema fixes for testing
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | sourceforge
Files: files | file ages | folders
SHA1: 11d1251b2a152e8d741bb175655bc10159a202a8
User & Date: rmsimpson 2006-02-17 17:31:05.000
Context
2006-02-20
05:57
Tons of new designer stuff check-in: 5d84d2aebf user: rmsimpson tags: sourceforge
2006-02-17
17:31
Schema fixes for testing check-in: 11d1251b2a user: rmsimpson tags: sourceforge
15:52
no message check-in: 5d50a5271b user: rmsimpson tags: sourceforge
Changes
Unified Diff Ignore Whitespace Patch
Changes to System.Data.SQLite/SQLiteConnection.cs.
︙︙
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          {
            if (String.IsNullOrEmpty(strTable) || String.Compare(strTable, rdTables.GetString(2), true, CultureInfo.InvariantCulture) == 0)
            {
              using (SQLiteCommand cmd = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "SELECT * FROM [{0}].[{1}]", strCatalog, rdTables.GetString(2)), this))
              {
                using (SQLiteDataReader rd = (SQLiteDataReader)cmd.ExecuteReader(CommandBehavior.SchemaOnly))
                {
                  using (DataTable tblSchema = rd.GetSchemaTable(false))
                  {
                    foreach (DataRow schemaRow in tblSchema.Rows)
                    {
                      if (String.Compare(schemaRow[SchemaTableColumn.ColumnName].ToString(), strColumn, true, CultureInfo.InvariantCulture) == 0
                        || strColumn == null)
                      {
                        row = tbl.NewRow();








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          {
            if (String.IsNullOrEmpty(strTable) || String.Compare(strTable, rdTables.GetString(2), true, CultureInfo.InvariantCulture) == 0)
            {
              using (SQLiteCommand cmd = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "SELECT * FROM [{0}].[{1}]", strCatalog, rdTables.GetString(2)), this))
              {
                using (SQLiteDataReader rd = (SQLiteDataReader)cmd.ExecuteReader(CommandBehavior.SchemaOnly))
                {
                  using (DataTable tblSchema = rd.GetSchemaTable(false, true))
                  {
                    foreach (DataRow schemaRow in tblSchema.Rows)
                    {
                      if (String.Compare(schemaRow[SchemaTableColumn.ColumnName].ToString(), strColumn, true, CultureInfo.InvariantCulture) == 0
                        || strColumn == null)
                      {
                        row = tbl.NewRow();
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    /// <param name="strIndex">The name of the index to retrieve information for, can be null</param>
    /// <param name="strTable">The table to retrieve index information for, can be null</param>
    /// <returns>DataTable</returns>
    private DataTable Schema_Indexes(string strCatalog, string strTable, string strIndex)
    {
      DataTable tbl = new DataTable("Indexes");
      DataRow row;
      DataTable tblSchema;
      Collections.Generic.List<int> primaryKeys = new List<int>();
      bool maybeRowId;

      tbl.Locale = CultureInfo.InvariantCulture;
      tbl.Columns.Add("TABLE_CATALOG", typeof(string));
      tbl.Columns.Add("TABLE_SCHEMA", typeof(string));
      tbl.Columns.Add("TABLE_NAME", typeof(string));








<








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    /// <param name="strIndex">The name of the index to retrieve information for, can be null</param>
    /// <param name="strTable">The table to retrieve index information for, can be null</param>
    /// <returns>DataTable</returns>
    private DataTable Schema_Indexes(string strCatalog, string strTable, string strIndex)
    {
      DataTable tbl = new DataTable("Indexes");
      DataRow row;

      Collections.Generic.List<int> primaryKeys = new List<int>();
      bool maybeRowId;

      tbl.Locale = CultureInfo.InvariantCulture;
      tbl.Columns.Add("TABLE_CATALOG", typeof(string));
      tbl.Columns.Add("TABLE_SCHEMA", typeof(string));
      tbl.Columns.Add("TABLE_NAME", typeof(string));
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          {
            maybeRowId = false;
            primaryKeys.Clear();
            if (String.IsNullOrEmpty(strTable) || String.Compare(rdTables.GetString(2), strTable, true, CultureInfo.InvariantCulture) == 0)
            {
              // First, look for any rowid indexes -- which sqlite defines are INTEGER PRIMARY KEY columns.
              // Such indexes are not listed in the indexes list but count as indexes just the same.
              using (SQLiteCommand cmdTable = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "SELECT * FROM [{0}].[{1}]", strCatalog, rdTables.GetString(2)), this))
              {
                using (SQLiteDataReader rdTable = cmdTable.ExecuteReader(CommandBehavior.SchemaOnly))
                {
                  tblSchema = rdTable.GetSchemaTable(false);
                  foreach (DataRow schemaRow in tblSchema.Rows)
                  {
                    if (schemaRow.IsNull("DeclaredType") == false)
                    {
                      if ((bool)schemaRow[SchemaTableColumn.IsKey] == true)
                      {
                        primaryKeys.Add((int)schemaRow[SchemaTableColumn.ColumnOrdinal]);

                        // If the primary key is of type INTEGER, then its a rowid and we need to make a fake index entry for it.
                        if (String.Compare((string)schemaRow["DeclaredType"], "INTEGER", true, CultureInfo.InvariantCulture) == 0)
                        {
                          maybeRowId = true;
                        }
                      }
                    }
                  }
                  if (primaryKeys.Count == 1 && maybeRowId == true)
                  {
                    row = tbl.NewRow();

                    row["TABLE_CATALOG"] = strCatalog;
                    row["TABLE_NAME"] = rdTables.GetString(2);
                    row["INDEX_CATALOG"] = strCatalog;
                    row["PRIMARY_KEY"] = true;
                    row["INDEX_NAME"] = String.Format(CultureInfo.InvariantCulture, "sqlite_master_PK_{0}", rdTables.GetString(2));
                    row["UNIQUE"] = true;

                    tbl.Rows.Add(row);
                    primaryKeys.Clear();
                  }
                }
              }

              // Now fetch all the rest of the indexes.
              using (SQLiteCommand cmd = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "PRAGMA [{0}].index_list([{1}])", strCatalog, rdTables.GetString(2)), this))
              {
                using (SQLiteDataReader rd = (SQLiteDataReader)cmd.ExecuteReader())








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          {
            maybeRowId = false;
            primaryKeys.Clear();
            if (String.IsNullOrEmpty(strTable) || String.Compare(rdTables.GetString(2), strTable, true, CultureInfo.InvariantCulture) == 0)
            {
              // First, look for any rowid indexes -- which sqlite defines are INTEGER PRIMARY KEY columns.
              // Such indexes are not listed in the indexes list but count as indexes just the same.
              using (SQLiteCommand cmdTable = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "PRAGMA [{0}].table_info([{1}])", strCatalog, rdTables.GetString(2)), this))
              {
                using (SQLiteDataReader rdTable = cmdTable.ExecuteReader())
                {
                  while (rdTable.Read())

                  {
                    if (rdTable.GetInt32(5) == 1)
                    {


                      primaryKeys.Add(rdTable.GetInt32(0));

                      // If the primary key is of type INTEGER, then its a rowid and we need to make a fake index entry for it.
                      if (String.Compare(rdTable.GetString(2), "INTEGER", true, CultureInfo.InvariantCulture) == 0)

                        maybeRowId = true;
                    }
                  }
                }

                if (primaryKeys.Count == 1 && maybeRowId == true)
                {
                  row = tbl.NewRow();

                  row["TABLE_CATALOG"] = strCatalog;
                  row["TABLE_NAME"] = rdTables.GetString(2);
                  row["INDEX_CATALOG"] = strCatalog;
                  row["PRIMARY_KEY"] = true;
                  row["INDEX_NAME"] = String.Format(CultureInfo.InvariantCulture, "sqlite_master_PK_{0}", rdTables.GetString(2));
                  row["UNIQUE"] = true;

                  tbl.Rows.Add(row);
                  primaryKeys.Clear();

                }
              }

              // Now fetch all the rest of the indexes.
              using (SQLiteCommand cmd = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "PRAGMA [{0}].index_list([{1}])", strCatalog, rdTables.GetString(2)), this))
              {
                using (SQLiteDataReader rd = (SQLiteDataReader)cmd.ExecuteReader())
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    /// <param name="strIndex">The index to restrict index information by (can be null)</param>
    /// <param name="strColumn">The source column to restrict index information by (can be null)</param>
    /// <returns>A DataTable containing the results</returns>
    private DataTable Schema_IndexColumns(string strCatalog, string strTable, string strIndex, string strColumn)
    {
      DataTable tbl = new DataTable("IndexColumns");
      DataRow row;

      DataTable tblSchema;

      tbl.Locale = CultureInfo.InvariantCulture;
      tbl.Columns.Add("CONSTRAINT_CATALOG", typeof(string));
      tbl.Columns.Add("CONSTRAINT_SCHEMA", typeof(string));
      tbl.Columns.Add("CONSTRAINT_NAME", typeof(string));
      tbl.Columns.Add("TABLE_CATALOG", typeof(string));
      tbl.Columns.Add("TABLE_SCHEMA", typeof(string));








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    /// <param name="strIndex">The index to restrict index information by (can be null)</param>
    /// <param name="strColumn">The source column to restrict index information by (can be null)</param>
    /// <returns>A DataTable containing the results</returns>
    private DataTable Schema_IndexColumns(string strCatalog, string strTable, string strIndex, string strColumn)
    {
      DataTable tbl = new DataTable("IndexColumns");
      DataRow row;
      List<KeyValuePair<int, string>> primaryKeys = new List<KeyValuePair<int, string>>();
      bool maybeRowId;

      tbl.Locale = CultureInfo.InvariantCulture;
      tbl.Columns.Add("CONSTRAINT_CATALOG", typeof(string));
      tbl.Columns.Add("CONSTRAINT_SCHEMA", typeof(string));
      tbl.Columns.Add("CONSTRAINT_NAME", typeof(string));
      tbl.Columns.Add("TABLE_CATALOG", typeof(string));
      tbl.Columns.Add("TABLE_SCHEMA", typeof(string));
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      using (SQLiteCommand cmdTables = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "SELECT * FROM [{0}].[sqlite_master] WHERE [type] LIKE 'table'", strCatalog), this))
      {
        using (SQLiteDataReader rdTables = cmdTables.ExecuteReader())
        {
          while (rdTables.Read())
          {


            if (String.IsNullOrEmpty(strTable) || String.Compare(rdTables.GetString(2), strTable, true, CultureInfo.InvariantCulture) == 0)
            {
              using (SQLiteCommand cmdTable = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "SELECT * FROM [{0}].[{1}]", strCatalog, rdTables.GetString(2)), this))
              {
                using (SQLiteDataReader rdTable = cmdTable.ExecuteReader(CommandBehavior.SchemaOnly))
                {
                  tblSchema = rdTable.GetSchemaTable(false);
                  foreach (DataRow schemaRow in tblSchema.Rows)
                  {
                    if (schemaRow.IsNull("DeclaredType") == false)
                    {


                      if (String.Compare((string)schemaRow["DeclaredType"], "INTEGER", true, CultureInfo.InvariantCulture) == 0
                        && Convert.ToBoolean(schemaRow[SchemaTableColumn.IsKey], CultureInfo.InvariantCulture) == true)




                      {
                        row = tbl.NewRow();
                        row["CONSTRAINT_CATALOG"] = strCatalog;
                        row["CONSTRAINT_NAME"] = String.Format(CultureInfo.InvariantCulture, "sqlite_master_PK_{0}", rdTables.GetString(2));
                        row["TABLE_CATALOG"] = strCatalog;
                        row["TABLE_NAME"] = rdTables.GetString(2);
                        row["COLUMN_NAME"] = schemaRow[SchemaTableColumn.BaseColumnName];
                        row["INDEX_NAME"] = row["CONSTRAINT_NAME"];
                        row["ORDINAL_POSITION"] = schemaRow[SchemaTableColumn.ColumnOrdinal];
                        if ((String.IsNullOrEmpty(strIndex) || String.Compare(strIndex, row["INDEX_NAME"].ToString(), true, CultureInfo.InvariantCulture) == 0)
                            && (String.IsNullOrEmpty(strColumn) || String.Compare(strColumn, row["COLUMN_NAME"].ToString(), true, CultureInfo.InvariantCulture) == 0))
                        {
                          tbl.Rows.Add(row);
                          break;
                        }
                      }
                    }
                  }
                }
              }

              using (SQLiteCommand cmdIndexes = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "SELECT * FROM [{0}].[sqlite_master] WHERE [type] LIKE 'index' AND [tbl_name] LIKE '{1}'", strCatalog, rdTables.GetString(2)), this))
              {
                using (SQLiteDataReader rdIndexes = cmdIndexes.ExecuteReader())
                {








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      using (SQLiteCommand cmdTables = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "SELECT * FROM [{0}].[sqlite_master] WHERE [type] LIKE 'table'", strCatalog), this))
      {
        using (SQLiteDataReader rdTables = cmdTables.ExecuteReader())
        {
          while (rdTables.Read())
          {
            maybeRowId = false;
            primaryKeys.Clear();
            if (String.IsNullOrEmpty(strTable) || String.Compare(rdTables.GetString(2), strTable, true, CultureInfo.InvariantCulture) == 0)
            {
              using (SQLiteCommand cmdTable = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "PRAGMA [{0}].table_info([{1}])", strCatalog, rdTables.GetString(2)), this))
              {
                using (SQLiteDataReader rdTable = cmdTable.ExecuteReader())
                {
                  while (rdTable.Read())

                  {
                    if (rdTable.GetInt32(5) == 1) // is a primary key
                    {
                      primaryKeys.Add(new KeyValuePair<int, string>(rdTable.GetInt32(0), rdTable.GetString(1)));
                      // Is an integer -- could be a rowid if no other primary keys exist in the table
                      if (String.Compare(rdTable.GetString(2), "INTEGER", true, CultureInfo.InvariantCulture) == 0)
                        maybeRowId = true;
                    }
                  }
                }
                if (primaryKeys.Count == 1 && maybeRowId == true)
                {
                  row = tbl.NewRow();
                  row["CONSTRAINT_CATALOG"] = strCatalog;
                  row["CONSTRAINT_NAME"] = String.Format(CultureInfo.InvariantCulture, "sqlite_master_PK_{0}", rdTables.GetString(2));
                  row["TABLE_CATALOG"] = strCatalog;
                  row["TABLE_NAME"] = rdTables.GetString(2);
                  row["COLUMN_NAME"] = primaryKeys[0].Value;
                  row["INDEX_NAME"] = row["CONSTRAINT_NAME"];
                  row["ORDINAL_POSITION"] = primaryKeys[0].Key;



                  tbl.Rows.Add(row);





                }
              }

              using (SQLiteCommand cmdIndexes = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "SELECT * FROM [{0}].[sqlite_master] WHERE [type] LIKE 'index' AND [tbl_name] LIKE '{1}'", strCatalog, rdTables.GetString(2)), this))
              {
                using (SQLiteDataReader rdIndexes = cmdIndexes.ExecuteReader())
                {
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                using (SQLiteCommand cmd = new SQLiteCommand(strSql, this))
                {
                  using (SQLiteDataReader rdViewSelect = cmdViewSelect.ExecuteReader(CommandBehavior.SchemaOnly))
                  {
                    using (SQLiteDataReader rd = (SQLiteDataReader)cmd.ExecuteReader(CommandBehavior.SchemaOnly))
                    {
                      using (DataTable tblSchemaView = rdViewSelect.GetSchemaTable(false))
                      {
                        using (DataTable tblSchema = rd.GetSchemaTable(false))
                        {
                          for (n = 0; n < tblSchema.Rows.Count; n++)
                          {
                            viewRow = tblSchemaView.Rows[n];
                            schemaRow = tblSchema.Rows[n];

                            if (String.Compare(viewRow[SchemaTableColumn.ColumnName].ToString(), strColumn, true, CultureInfo.InvariantCulture) == 0








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                using (SQLiteCommand cmd = new SQLiteCommand(strSql, this))
                {
                  using (SQLiteDataReader rdViewSelect = cmdViewSelect.ExecuteReader(CommandBehavior.SchemaOnly))
                  {
                    using (SQLiteDataReader rd = (SQLiteDataReader)cmd.ExecuteReader(CommandBehavior.SchemaOnly))
                    {
                      using (DataTable tblSchemaView = rdViewSelect.GetSchemaTable(false, false))
                      {
                        using (DataTable tblSchema = rd.GetSchemaTable(false, false))
                        {
                          for (n = 0; n < tblSchema.Rows.Count; n++)
                          {
                            viewRow = tblSchemaView.Rows[n];
                            schemaRow = tblSchema.Rows[n];

                            if (String.Compare(viewRow[SchemaTableColumn.ColumnName].ToString(), strColumn, true, CultureInfo.InvariantCulture) == 0
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Changes to System.Data.SQLite/SQLiteDataReader.cs.
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    /// <remarks>
    /// The current connection is cloned for the sake of executing this statement, so as to avoid any possibility of corrupting the
    /// original connection's existing statements or state.  Any attached databases are re-attached to the new connection.
    /// </remarks>
    /// <returns>Returns a DataTable containing the schema information for the active SELECT statement being processed.</returns>
    public override DataTable GetSchemaTable()
    {
      return GetSchemaTable(true);
    }

    internal DataTable GetSchemaTable(bool wantUniqueInfo)
    {
      CheckClosed();

      DataTable tbl = new DataTable("SchemaTable");
      DataTable tblIndexes = null;
      DataTable tblIndexColumns;
      DataRow row;








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    /// <remarks>
    /// The current connection is cloned for the sake of executing this statement, so as to avoid any possibility of corrupting the
    /// original connection's existing statements or state.  Any attached databases are re-attached to the new connection.
    /// </remarks>
    /// <returns>Returns a DataTable containing the schema information for the active SELECT statement being processed.</returns>
    public override DataTable GetSchemaTable()
    {
      return GetSchemaTable(true, true);
    }

    internal DataTable GetSchemaTable(bool wantUniqueInfo, bool wantDefaultValue)
    {
      CheckClosed();

      DataTable tbl = new DataTable("SchemaTable");
      DataTable tblIndexes = null;
      DataTable tblIndexColumns;
      DataRow row;
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      tbl.Columns.Add(SchemaTableOptionalColumn.IsAutoIncrement, typeof(Boolean));
      tbl.Columns.Add(SchemaTableOptionalColumn.IsRowVersion, typeof(Boolean));
      tbl.Columns.Add(SchemaTableOptionalColumn.IsHidden, typeof(Boolean));
      tbl.Columns.Add(SchemaTableColumn.IsLong, typeof(Boolean));
      tbl.Columns.Add(SchemaTableOptionalColumn.IsReadOnly, typeof(Boolean));
      tbl.Columns.Add(SchemaTableOptionalColumn.ProviderSpecificDataType, typeof(Type));
      tbl.Columns.Add(SchemaTableOptionalColumn.DefaultValue, typeof(object));
      tbl.Columns.Add("DeclaredType", typeof(string));

      tbl.BeginLoadData();

      SQLiteConnection cnn = (SQLiteConnection)_command.Connection;

      // Create a new command based on the original.  The only difference being that this new command returns
      // fully-qualified Database.Table.Column column names because of the above pragma
      using (SQLiteCommand cmd = (SQLiteCommand)_command.Clone())
      {
        using (DbDataReader rd = cmd.ExecuteReader(CommandBehavior.SchemaOnly))
        {
          // No need to Read() from this reader, we just want the column names
          for (int n = 0; n < _fieldCount; n++)
          {
            row = tbl.NewRow();

            // Default settings for the column
            row[SchemaTableColumn.ColumnName] = GetName(n);
            row[SchemaTableColumn.ColumnOrdinal] = n;
            row[SchemaTableColumn.ColumnSize] = 0;
            row[SchemaTableColumn.NumericPrecision] = 0;
            row[SchemaTableColumn.NumericScale] = 0;
            row[SchemaTableColumn.ProviderType] = GetSQLiteType(n).Type;
            row[SchemaTableColumn.IsLong] = (GetSQLiteType(n).Type == DbType.Binary);
            row[SchemaTableColumn.AllowDBNull] = true;
            row[SchemaTableOptionalColumn.IsReadOnly] = false;
            row[SchemaTableOptionalColumn.IsRowVersion] = false;
            row[SchemaTableColumn.IsUnique] = false;
            row[SchemaTableColumn.IsKey] = false;
            row[SchemaTableOptionalColumn.IsAutoIncrement] = false;
            row[SchemaTableOptionalColumn.IsReadOnly] = false;


            strColumn = _command.Connection._sql.ColumnOriginalName(_activeStatement, n);
            if (String.IsNullOrEmpty(strColumn) == false) row[SchemaTableColumn.BaseColumnName] = strColumn;

            temp = _command.Connection._sql.ColumnTableName(_activeStatement, n);
            if (String.IsNullOrEmpty(temp) == false) row[SchemaTableColumn.BaseTableName] = temp;

            temp = _command.Connection._sql.ColumnDatabaseName(_activeStatement, n);
            if (String.IsNullOrEmpty(temp) == false) row[SchemaTableOptionalColumn.BaseCatalogName] = temp;
            
            row[SchemaTableColumn.DataType] = GetFieldType(n);

            // If we have a table-bound column, extract the extra information from it
            if (String.IsNullOrEmpty(strColumn) == false)
            {
              using (SQLiteCommand cmdTable = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "PRAGMA [{0}].TABLE_INFO([{1}])",
                row[SchemaTableOptionalColumn.BaseCatalogName],
                row[SchemaTableColumn.BaseTableName]
                ), cnn))
              {
                using (DbDataReader rdTable = cmdTable.ExecuteReader())
                {
                  while (rdTable.Read())
                  {
                    if (String.Compare((string)row[SchemaTableColumn.BaseColumnName], rdTable.GetString(1), true, CultureInfo.InvariantCulture) == 0)
                    {
                      string strType = rdTable.GetString(2);
                      string[] arSize = strType.Split('(');
                      if (arSize.Length > 1)
                      {
                        strType = arSize[0];
                        arSize = arSize[1].Split(')');
                        if (arSize.Length > 1)
                          row[SchemaTableColumn.ColumnSize] = Convert.ToInt32(arSize[0], CultureInfo.InvariantCulture);
                      }

                      string collSeq;
                      string dataType;
                      bool bNotNull;
                      bool bPrimaryKey;
                      bool bAutoIncrement;



                      _command.Connection._sql.ColumnMetaData(
                (string)row[SchemaTableOptionalColumn.BaseCatalogName],
                (string)row[SchemaTableColumn.BaseTableName],
                strColumn,
                out dataType, out collSeq, out bNotNull, out bPrimaryKey, out bAutoIncrement);

                      if (bNotNull || bPrimaryKey) row[SchemaTableColumn.AllowDBNull] = false;

                      row[SchemaTableColumn.IsKey] = bPrimaryKey;
                      row[SchemaTableOptionalColumn.IsAutoIncrement] = bAutoIncrement;





                      if (String.IsNullOrEmpty(dataType) == false)




                        row["DeclaredType"] = dataType;















                      if (rdTable.IsDBNull(4) == false)
                        row[SchemaTableOptionalColumn.DefaultValue] = rdTable[4];

                      break;

                    }
                  }
                }
              }

              // Determine IsUnique properly, which is a pain in the butt!
              if (wantUniqueInfo)
              {
                if ((string)row[SchemaTableOptionalColumn.BaseCatalogName] != strCatalog
                  || (string)row[SchemaTableColumn.BaseTableName] != strTable)
                {
                  strCatalog = (string)row[SchemaTableOptionalColumn.BaseCatalogName];
                  strTable = (string)row[SchemaTableColumn.BaseTableName];

                  tblIndexes = _command.Connection.GetSchema("Indexes", new string[] {
                (string)row[SchemaTableOptionalColumn.BaseCatalogName],
                null,
                (string)row[SchemaTableColumn.BaseTableName],
                null });
                }

                foreach (DataRow rowIndexes in tblIndexes.Rows)
                {
                  tblIndexColumns = _command.Connection.GetSchema("IndexColumns", new string[] {
                (string)row[SchemaTableOptionalColumn.BaseCatalogName],
                null,
                (string)row[SchemaTableColumn.BaseTableName],
                (string)rowIndexes["INDEX_NAME"],
                null
                });
                  foreach (DataRow rowColumnIndex in tblIndexColumns.Rows)
                  {
                    if (String.Compare((string)rowColumnIndex["COLUMN_NAME"], strColumn, true, CultureInfo.InvariantCulture) == 0)
                    {
                       if (tblIndexColumns.Rows.Count == 1) row[SchemaTableColumn.IsUnique] = rowIndexes["UNIQUE"];
                      break;
                    }
                  }
                }
              }
            }
            tbl.Rows.Add(row);
          }
        }

      }

      tbl.AcceptChanges();
      tbl.EndLoadData();

      return tbl;
    }








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      tbl.Columns.Add(SchemaTableOptionalColumn.IsAutoIncrement, typeof(Boolean));
      tbl.Columns.Add(SchemaTableOptionalColumn.IsRowVersion, typeof(Boolean));
      tbl.Columns.Add(SchemaTableOptionalColumn.IsHidden, typeof(Boolean));
      tbl.Columns.Add(SchemaTableColumn.IsLong, typeof(Boolean));
      tbl.Columns.Add(SchemaTableOptionalColumn.IsReadOnly, typeof(Boolean));
      tbl.Columns.Add(SchemaTableOptionalColumn.ProviderSpecificDataType, typeof(Type));
      tbl.Columns.Add(SchemaTableOptionalColumn.DefaultValue, typeof(object));


      tbl.BeginLoadData();










      for (int n = 0; n < _fieldCount; n++)
      {
        row = tbl.NewRow();

        // Default settings for the column
        row[SchemaTableColumn.ColumnName] = GetName(n);
        row[SchemaTableColumn.ColumnOrdinal] = n;
        row[SchemaTableColumn.ColumnSize] = 0;
        row[SchemaTableColumn.NumericPrecision] = 0;
        row[SchemaTableColumn.NumericScale] = 0;
        row[SchemaTableColumn.ProviderType] = GetSQLiteType(n).Type;
        row[SchemaTableColumn.IsLong] = (GetSQLiteType(n).Type == DbType.Binary);
        row[SchemaTableColumn.AllowDBNull] = true;
        row[SchemaTableOptionalColumn.IsReadOnly] = false;
        row[SchemaTableOptionalColumn.IsRowVersion] = false;
        row[SchemaTableColumn.IsUnique] = false;
        row[SchemaTableColumn.IsKey] = false;
        row[SchemaTableOptionalColumn.IsAutoIncrement] = false;
        row[SchemaTableOptionalColumn.IsReadOnly] = false;
        row[SchemaTableColumn.DataType] = GetFieldType(n);

        strColumn = _command.Connection._sql.ColumnOriginalName(_activeStatement, n);
        if (String.IsNullOrEmpty(strColumn) == false) row[SchemaTableColumn.BaseColumnName] = strColumn;

        temp = _command.Connection._sql.ColumnTableName(_activeStatement, n);
        if (String.IsNullOrEmpty(temp) == false) row[SchemaTableColumn.BaseTableName] = temp;

        temp = _command.Connection._sql.ColumnDatabaseName(_activeStatement, n);
        if (String.IsNullOrEmpty(temp) == false) row[SchemaTableOptionalColumn.BaseCatalogName] = temp;



        // If we have a table-bound column, extract the extra information from it
        if (String.IsNullOrEmpty(strColumn) == false)
        {





















          string collSeq;
          string dataType;
          bool bNotNull;
          bool bPrimaryKey;
          bool bAutoIncrement;
          string[] arSize;

          // Get the column meta data
          _command.Connection._sql.ColumnMetaData(
            (string)row[SchemaTableOptionalColumn.BaseCatalogName],
            (string)row[SchemaTableColumn.BaseTableName],
            strColumn,
            out dataType, out collSeq, out bNotNull, out bPrimaryKey, out bAutoIncrement);

          if (bNotNull || bPrimaryKey) row[SchemaTableColumn.AllowDBNull] = false;

          row[SchemaTableColumn.IsKey] = bPrimaryKey;
          row[SchemaTableOptionalColumn.IsAutoIncrement] = bAutoIncrement;

          // For types like varchar(50) and such, extract the size
          arSize = dataType.Split('(');
          if (arSize.Length > 1)
          {
            dataType = arSize[0];
            arSize = arSize[1].Split(')');
            if (arSize.Length > 1)
              row[SchemaTableColumn.ColumnSize] = Convert.ToInt32(arSize[0], CultureInfo.InvariantCulture);
          }

          if (wantDefaultValue)
          {
            // Determine the default value for the column, which sucks because we have to query the schema for each column
            using (SQLiteCommand cmdTable = new SQLiteCommand(String.Format(CultureInfo.InvariantCulture, "PRAGMA [{0}].TABLE_INFO([{1}])",
              row[SchemaTableOptionalColumn.BaseCatalogName],
              row[SchemaTableColumn.BaseTableName]
              ), _command.Connection))
            {
              using (DbDataReader rdTable = cmdTable.ExecuteReader())
              {
                // Find the matching column
                while (rdTable.Read())
                {
                  if (String.Compare((string)row[SchemaTableColumn.BaseColumnName], rdTable.GetString(1), true, CultureInfo.InvariantCulture) == 0)
                  {
                    if (rdTable.IsDBNull(4) == false)
                      row[SchemaTableOptionalColumn.DefaultValue] = rdTable[4];

                    break;
                  }
                }
              }
            }
          }

          // Determine IsUnique properly, which is a pain in the butt!
          if (wantUniqueInfo)
          {
            if ((string)row[SchemaTableOptionalColumn.BaseCatalogName] != strCatalog
              || (string)row[SchemaTableColumn.BaseTableName] != strTable)
            {
              strCatalog = (string)row[SchemaTableOptionalColumn.BaseCatalogName];
              strTable = (string)row[SchemaTableColumn.BaseTableName];

              tblIndexes = _command.Connection.GetSchema("Indexes", new string[] {
                (string)row[SchemaTableOptionalColumn.BaseCatalogName],
                null,
                (string)row[SchemaTableColumn.BaseTableName],
                null });
            }

            foreach (DataRow rowIndexes in tblIndexes.Rows)
            {
              tblIndexColumns = _command.Connection.GetSchema("IndexColumns", new string[] {
                (string)row[SchemaTableOptionalColumn.BaseCatalogName],
                null,
                (string)row[SchemaTableColumn.BaseTableName],
                (string)rowIndexes["INDEX_NAME"],
                null
                });
              foreach (DataRow rowColumnIndex in tblIndexColumns.Rows)
              {
                if (String.Compare((string)rowColumnIndex["COLUMN_NAME"], strColumn, true, CultureInfo.InvariantCulture) == 0)
                {
                  if (tblIndexColumns.Rows.Count == 1) row[SchemaTableColumn.IsUnique] = rowIndexes["UNIQUE"];
                  break;


                }
              }
            }

          }
        }
        tbl.Rows.Add(row);
      }

      tbl.AcceptChanges();
      tbl.EndLoadData();

      return tbl;
    }
︙︙
Changes to bin/CompactFramework/System.Data.SQLite.dll.

cannot compute difference between binary files

Changes to bin/CompactFramework/testce.exe.

cannot compute difference between binary files

Changes to bin/System.Data.SQLite.dll.

cannot compute difference between binary files

Changes to bin/itanium/System.Data.SQLite.DLL.

cannot compute difference between binary files

Changes to bin/test.exe.

cannot compute difference between binary files

Changes to bin/x64/System.Data.SQLite.DLL.

cannot compute difference between binary files