public virtual MySqlSchemaCollection GetDatabases(string[] restrictions)
{
Regex regex = null;
int caseSetting = Int32.Parse(connection.driver.Property("lower_case_table_names"));
string sql = "SHOW DATABASES";
// if lower_case_table_names is zero, then case lookup should be sensitive
// so we can use LIKE to do the matching.
if (caseSetting == 0)
{
if (restrictions != null && restrictions.Length >= 1)
sql = sql + " LIKE '" + restrictions[0] + "'";
}
MySqlSchemaCollection c = QueryCollection("Databases", sql);
if (caseSetting != 0 && restrictions != null && restrictions.Length >= 1 && restrictions[0] != null)
regex = new Regex(restrictions[0], RegexOptions.IgnoreCase);
MySqlSchemaCollection c2 = new MySqlSchemaCollection("Databases");
c2.AddColumn("CATALOG_NAME", typeof(string));
c2.AddColumn("SCHEMA_NAME", typeof(string));
foreach (MySqlSchemaRow row in c.Rows)
{
if (regex != null && !regex.Match(row[0].ToString()).Success) continue;
MySqlSchemaRow newRow = c2.AddRow();
newRow[1] = row[0];
}
return c2;
}
private void LoadTableColumns(MySqlSchemaCollection schemaCollection, string schema,
string tableName, string columnRestriction)
{
string sql = String.Format("SHOW FULL COLUMNS FROM `{0}`.`{1}`",
schema, tableName);
MySqlCommand cmd = new MySqlCommand(sql, connection);
int pos = 1;
using (MySqlDataReader reader = cmd.ExecuteReader())
{
while (reader.Read())
{
string colName = reader.GetString(0);
if (columnRestriction != null && colName != columnRestriction)
{
continue;
}
MySqlSchemaRow row = schemaCollection.AddRow();
row["TABLE_CATALOG"] = DBNull.Value;
row["TABLE_SCHEMA"] = schema;
row["TABLE_NAME"] = tableName;
row["COLUMN_NAME"] = colName;
row["ORDINAL_POSITION"] = pos++;
row["COLUMN_DEFAULT"] = reader.GetValue(5);
row["IS_NULLABLE"] = reader.GetString(3);
row["DATA_TYPE"] = reader.GetString(1);
row["CHARACTER_MAXIMUM_LENGTH"] = DBNull.Value;
row["CHARACTER_OCTET_LENGTH"] = DBNull.Value;
row["NUMERIC_PRECISION"] = DBNull.Value;
row["NUMERIC_SCALE"] = DBNull.Value;
row["CHARACTER_SET_NAME"] = reader.GetValue(2);
row["COLLATION_NAME"] = row["CHARACTER_SET_NAME"];
row["COLUMN_TYPE"] = reader.GetString(1);
row["COLUMN_KEY"] = reader.GetString(4);
row["EXTRA"] = reader.GetString(6);
row["PRIVILEGES"] = reader.GetString(7);
row["COLUMN_COMMENT"] = reader.GetString(8);
ParseColumnRow(row);
}
}
}
public virtual MySqlSchemaCollection GetDatabases(string[] restrictions)
{
Regex regex = null;
int caseSetting = Int32.Parse(connection.driver.Property("lower_case_table_names"));
string sql = "SHOW DATABASES";
// if lower_case_table_names is zero, then case lookup should be sensitive
// so we can use LIKE to do the matching.
if (caseSetting == 0)
{
if (restrictions != null && restrictions.Length >= 1)
{
sql = sql + " LIKE '" + restrictions[0] + "'";
}
}
MySqlSchemaCollection c = QueryCollection("Databases", sql);
if (caseSetting != 0 && restrictions != null && restrictions.Length >= 1 && restrictions[0] != null)
{
regex = new Regex(restrictions[0], RegexOptions.IgnoreCase);
}
MySqlSchemaCollection c2 = new MySqlSchemaCollection("Databases");
c2.AddColumn("CATALOG_NAME", typeof(string));
c2.AddColumn("SCHEMA_NAME", typeof(string));
foreach (MySqlSchemaRow row in c.Rows)
{
if (regex != null && !regex.Match(row[0].ToString()).Success)
{
continue;
}
MySqlSchemaRow newRow = c2.AddRow();
newRow[1] = row[0];
}
return(c2);
}
private static MySqlSchemaCollection GetReservedWords()
{
MySqlSchemaCollection dt = new MySqlSchemaCollection("ReservedWords");
#if !NETSTANDARD1_3
dt.AddColumn(DbMetaDataColumnNames.ReservedWord, typeof(string));
Stream str = Assembly.GetExecutingAssembly().GetManifestResourceStream(
"Pomelo.Data.MySql.Properties.ReservedWords.txt");
#else
dt.AddColumn("ReservedWord", typeof(string));
Stream str = typeof(SchemaProvider).GetTypeInfo().Assembly.GetManifestResourceStream("Pomelo.Data.MySql.Properties.ReservedWords.txt");
#endif
StreamReader sr = new StreamReader(str);
string line = sr.ReadLine();
while (line != null)
{
string[] keywords = line.Split(new char[] { ' ' });
foreach (string s in keywords)
{
if (String.IsNullOrEmpty(s))
{
continue;
}
MySqlSchemaRow row = dt.AddRow();
row[0] = s;
}
line = sr.ReadLine();
}
#if NETSTANDARD1_3
sr.Dispose();
str.Dispose();
#else
sr.Close();
str.Close();
#endif
return(dt);
}
protected MySqlSchemaCollection QueryCollection(string name, string sql)
{
MySqlSchemaCollection c = new MySqlSchemaCollection(name);
MySqlCommand cmd = new MySqlCommand(sql, connection);
MySqlDataReader reader = cmd.ExecuteReader();
for (int i = 0; i < reader.FieldCount; i++)
{
c.AddColumn(reader.GetName(i), reader.GetFieldType(i));
}
using (reader)
{
while (reader.Read())
{
MySqlSchemaRow row = c.AddRow();
for (int i = 0; i < reader.FieldCount; i++)
{
row[i] = reader.GetValue(i);
}
}
}
return(c);
}
private void FindTables(MySqlSchemaCollection schema, string[] restrictions)
{
StringBuilder sql = new StringBuilder();
StringBuilder where = new StringBuilder();
sql.AppendFormat(CultureInfo.InvariantCulture,
"SHOW TABLE STATUS FROM `{0}`", restrictions[1]);
if (restrictions != null && restrictions.Length >= 3 &&
restrictions[2] != null)
where.AppendFormat(CultureInfo.InvariantCulture,
" LIKE '{0}'", restrictions[2]);
sql.Append(where.ToString());
string table_type = restrictions[1].ToLower() == "information_schema"
?
"SYSTEM VIEW"
: "BASE TABLE";
MySqlCommand cmd = new MySqlCommand(sql.ToString(), connection);
using (MySqlDataReader reader = cmd.ExecuteReader())
{
while (reader.Read())
{
MySqlSchemaRow row = schema.AddRow();
row["TABLE_CATALOG"] = null;
row["TABLE_SCHEMA"] = restrictions[1];
row["TABLE_NAME"] = reader.GetString(0);
row["TABLE_TYPE"] = table_type;
row["ENGINE"] = GetString(reader, 1);
row["VERSION"] = reader.GetValue(2);
row["ROW_FORMAT"] = GetString(reader, 3);
row["TABLE_ROWS"] = reader.GetValue(4);
row["AVG_ROW_LENGTH"] = reader.GetValue(5);
row["DATA_LENGTH"] = reader.GetValue(6);
row["MAX_DATA_LENGTH"] = reader.GetValue(7);
row["INDEX_LENGTH"] = reader.GetValue(8);
row["DATA_FREE"] = reader.GetValue(9);
row["AUTO_INCREMENT"] = reader.GetValue(10);
row["CREATE_TIME"] = reader.GetValue(11);
row["UPDATE_TIME"] = reader.GetValue(12);
row["CHECK_TIME"] = reader.GetValue(13);
row["TABLE_COLLATION"] = GetString(reader, 14);
row["CHECKSUM"] = reader.GetValue(15);
row["CREATE_OPTIONS"] = GetString(reader, 16);
row["TABLE_COMMENT"] = GetString(reader, 17);
}
}
}
private void ParseProcedureBody(MySqlSchemaCollection parametersTable, string body,
MySqlSchemaRow row, string nameToRestrict)
{
List<string> modes = new List<string>(new string[3] { "IN", "OUT", "INOUT" });
string sqlMode = row["SQL_MODE"].ToString();
int pos = 1;
MySqlTokenizer tokenizer = new MySqlTokenizer(body);
tokenizer.AnsiQuotes = sqlMode.IndexOf("ANSI_QUOTES") != -1;
tokenizer.BackslashEscapes = sqlMode.IndexOf("NO_BACKSLASH_ESCAPES") == -1;
tokenizer.ReturnComments = false;
string token = tokenizer.NextToken();
// this block will scan for the opening paren while also determining
// if this routine is a function. If so, then we need to add a
// parameter row for the return parameter since it is ordinal position
// 0 and should appear first.
while (token != "(")
{
if (String.Compare(token, "FUNCTION", StringComparison.OrdinalIgnoreCase) == 0 &&
nameToRestrict == null)
{
parametersTable.AddRow();
InitParameterRow(row, parametersTable.Rows[0]);
}
token = tokenizer.NextToken();
}
token = tokenizer.NextToken(); // now move to the next token past the (
while (token != ")")
{
MySqlSchemaRow parmRow = parametersTable.NewRow();
InitParameterRow(row, parmRow);
parmRow["ORDINAL_POSITION"] = pos++;
// handle mode and name for the parameter
string mode = StringUtility.ToUpperInvariant(token);
if (!tokenizer.Quoted && modes.Contains(mode))
{
parmRow["PARAMETER_MODE"] = mode;
token = tokenizer.NextToken();
}
if (tokenizer.Quoted)
token = token.Substring(1, token.Length - 2);
parmRow["PARAMETER_NAME"] = token;
// now parse data type
token = ParseDataType(parmRow, tokenizer);
if (token == ",")
token = tokenizer.NextToken();
// now determine if we should include this row after all
// we need to parse it before this check so we are correctly
// positioned for the next parameter
if (nameToRestrict == null ||
String.Compare(parmRow["PARAMETER_NAME"].ToString(), nameToRestrict, StringComparison.OrdinalIgnoreCase) == 0)
parametersTable.Rows.Add(parmRow);
}
// now parse out the return parameter if there is one.
token = StringUtility.ToUpperInvariant(tokenizer.NextToken());
if (String.Compare(token, "RETURNS", StringComparison.OrdinalIgnoreCase) == 0)
{
MySqlSchemaRow parameterRow = parametersTable.Rows[0];
parameterRow["PARAMETER_NAME"] = "RETURN_VALUE";
ParseDataType(parameterRow, tokenizer);
}
}
private void ParseProcedureBody(MySqlSchemaCollection parametersTable, string body,
MySqlSchemaRow row, string nameToRestrict)
{
List <string> modes = new List <string>(new string[3] {
"IN", "OUT", "INOUT"
});
string sqlMode = row["SQL_MODE"].ToString();
int pos = 1;
MySqlTokenizer tokenizer = new MySqlTokenizer(body);
tokenizer.AnsiQuotes = sqlMode.IndexOf("ANSI_QUOTES") != -1;
tokenizer.BackslashEscapes = sqlMode.IndexOf("NO_BACKSLASH_ESCAPES") == -1;
tokenizer.ReturnComments = false;
string token = tokenizer.NextToken();
// this block will scan for the opening paren while also determining
// if this routine is a function. If so, then we need to add a
// parameter row for the return parameter since it is ordinal position
// 0 and should appear first.
while (token != "(")
{
if (String.Compare(token, "FUNCTION", StringComparison.OrdinalIgnoreCase) == 0 &&
nameToRestrict == null)
{
parametersTable.AddRow();
InitParameterRow(row, parametersTable.Rows[0]);
}
token = tokenizer.NextToken();
}
token = tokenizer.NextToken(); // now move to the next token past the (
while (token != ")")
{
MySqlSchemaRow parmRow = parametersTable.NewRow();
InitParameterRow(row, parmRow);
parmRow["ORDINAL_POSITION"] = pos++;
// handle mode and name for the parameter
string mode = StringUtility.ToUpperInvariant(token);
if (!tokenizer.Quoted && modes.Contains(mode))
{
parmRow["PARAMETER_MODE"] = mode;
token = tokenizer.NextToken();
}
if (tokenizer.Quoted)
{
token = token.Substring(1, token.Length - 2);
}
parmRow["PARAMETER_NAME"] = token;
// now parse data type
token = ParseDataType(parmRow, tokenizer);
if (token == ",")
{
token = tokenizer.NextToken();
}
// now determine if we should include this row after all
// we need to parse it before this check so we are correctly
// positioned for the next parameter
if (nameToRestrict == null ||
String.Compare(parmRow["PARAMETER_NAME"].ToString(), nameToRestrict, StringComparison.OrdinalIgnoreCase) == 0)
{
parametersTable.Rows.Add(parmRow);
}
}
// now parse out the return parameter if there is one.
token = StringUtility.ToUpperInvariant(tokenizer.NextToken());
if (String.Compare(token, "RETURNS", StringComparison.OrdinalIgnoreCase) == 0)
{
MySqlSchemaRow parameterRow = parametersTable.Rows[0];
parameterRow["PARAMETER_NAME"] = "RETURN_VALUE";
ParseDataType(parameterRow, tokenizer);
}
}
internal static void SetDSInfo(MySqlSchemaCollection sc)
{
// we use name indexing because this method will only be called
// when GetSchema is called for the DataSourceInformation
// collection and then it wil be cached.
MySqlSchemaRow row = sc.AddRow();
row["TypeName"] = "BIT";
row["ProviderDbType"] = MySqlDbType.Bit;
row["ColumnSize"] = 64;
row["CreateFormat"] = "BIT";
row["CreateParameters"] = DBNull.Value; ;
row["DataType"] = typeof(UInt64).ToString();
row["IsAutoincrementable"] = false;
row["IsBestMatch"] = true;
row["IsCaseSensitive"] = false;
row["IsFixedLength"] = false;
row["IsFixedPrecisionScale"] = true;
row["IsLong"] = false;
row["IsNullable"] = true;
row["IsSearchable"] = true;
row["IsSearchableWithLike"] = false;
row["IsUnsigned"] = false;
row["MaximumScale"] = 0;
row["MinimumScale"] = 0;
row["IsConcurrencyType"] = DBNull.Value;
row["IsLiteralSupported"] = false;
row["LiteralPrefix"] = DBNull.Value;
row["LiteralSuffix"] = DBNull.Value;
row["NativeDataType"] = DBNull.Value;
}
public virtual MySqlSchemaCollection GetIndexColumns(string[] restrictions)
{
MySqlSchemaCollection dt = new MySqlSchemaCollection("IndexColumns");
dt.AddColumn("INDEX_CATALOG", typeof(string));
dt.AddColumn("INDEX_SCHEMA", typeof(string));
dt.AddColumn("INDEX_NAME", typeof(string));
dt.AddColumn("TABLE_NAME", typeof(string));
dt.AddColumn("COLUMN_NAME", typeof(string));
dt.AddColumn("ORDINAL_POSITION", typeof(int));
dt.AddColumn("SORT_ORDER", typeof(string));
int max = restrictions == null ? 4 : restrictions.Length;
string[] tableRestrictions = new string[Math.Max(max, 4)];
if (restrictions != null)
restrictions.CopyTo(tableRestrictions, 0);
tableRestrictions[3] = "BASE TABLE";
MySqlSchemaCollection tables = GetTables(tableRestrictions);
foreach (MySqlSchemaRow table in tables.Rows)
{
string sql = String.Format("SHOW INDEX FROM `{0}`.`{1}`",
table["TABLE_SCHEMA"], table["TABLE_NAME"]);
MySqlCommand cmd = new MySqlCommand(sql, connection);
using (MySqlDataReader reader = cmd.ExecuteReader())
{
while (reader.Read())
{
string key_name = GetString(reader, reader.GetOrdinal("KEY_NAME"));
string col_name = GetString(reader, reader.GetOrdinal("COLUMN_NAME"));
if (restrictions != null)
{
if (restrictions.Length >= 4 && restrictions[3] != null &&
key_name != restrictions[3])
continue;
if (restrictions.Length >= 5 && restrictions[4] != null &&
col_name != restrictions[4])
continue;
}
MySqlSchemaRow row = dt.AddRow();
row["INDEX_CATALOG"] = null;
row["INDEX_SCHEMA"] = table["TABLE_SCHEMA"];
row["INDEX_NAME"] = key_name;
row["TABLE_NAME"] = GetString(reader, reader.GetOrdinal("TABLE"));
row["COLUMN_NAME"] = col_name;
row["ORDINAL_POSITION"] = reader.GetValue(reader.GetOrdinal("SEQ_IN_INDEX"));
row["SORT_ORDER"] = reader.GetString("COLLATION");
}
}
}
return dt;
}
public virtual MySqlSchemaCollection GetIndexes(string[] restrictions)
{
MySqlSchemaCollection dt = new MySqlSchemaCollection("Indexes");
dt.AddColumn("INDEX_CATALOG", typeof(string));
dt.AddColumn("INDEX_SCHEMA", typeof(string));
dt.AddColumn("INDEX_NAME", typeof(string));
dt.AddColumn("TABLE_NAME", typeof(string));
dt.AddColumn("UNIQUE", typeof(bool));
dt.AddColumn("PRIMARY", typeof(bool));
dt.AddColumn("TYPE", typeof(string));
dt.AddColumn("COMMENT", typeof(string));
// Get the list of tables first
int max = restrictions == null ? 4 : restrictions.Length;
string[] tableRestrictions = new string[Math.Max(max, 4)];
if (restrictions != null)
restrictions.CopyTo(tableRestrictions, 0);
tableRestrictions[3] = "BASE TABLE";
MySqlSchemaCollection tables = GetTables(tableRestrictions);
foreach (MySqlSchemaRow table in tables.Rows)
{
string sql = String.Format("SHOW INDEX FROM `{0}`.`{1}`",
MySqlHelper.DoubleQuoteString((string)table["TABLE_SCHEMA"]),
MySqlHelper.DoubleQuoteString((string)table["TABLE_NAME"]));
MySqlSchemaCollection indexes = QueryCollection("indexes", sql);
foreach (MySqlSchemaRow index in indexes.Rows)
{
long seq_index = (long)index["SEQ_IN_INDEX"];
if (seq_index != 1) continue;
if (restrictions != null && restrictions.Length == 4 &&
restrictions[3] != null &&
!index["KEY_NAME"].Equals(restrictions[3]))
continue;
MySqlSchemaRow row = dt.AddRow();
row["INDEX_CATALOG"] = null;
row["INDEX_SCHEMA"] = table["TABLE_SCHEMA"];
row["INDEX_NAME"] = index["KEY_NAME"];
row["TABLE_NAME"] = index["TABLE"];
row["UNIQUE"] = (long)index["NON_UNIQUE"] == 0;
row["PRIMARY"] = index["KEY_NAME"].Equals("PRIMARY");
row["TYPE"] = index["INDEX_TYPE"];
row["COMMENT"] = index["COMMENT"];
}
}
return dt;
}
private void LoadTableColumns(MySqlSchemaCollection schemaCollection, string schema,
string tableName, string columnRestriction)
{
string sql = String.Format("SHOW FULL COLUMNS FROM `{0}`.`{1}`",
schema, tableName);
MySqlCommand cmd = new MySqlCommand(sql, connection);
int pos = 1;
using (MySqlDataReader reader = cmd.ExecuteReader())
{
while (reader.Read())
{
string colName = reader.GetString(0);
if (columnRestriction != null && colName != columnRestriction)
continue;
MySqlSchemaRow row = schemaCollection.AddRow();
row["TABLE_CATALOG"] = DBNull.Value;
row["TABLE_SCHEMA"] = schema;
row["TABLE_NAME"] = tableName;
row["COLUMN_NAME"] = colName;
row["ORDINAL_POSITION"] = pos++;
row["COLUMN_DEFAULT"] = reader.GetValue(5);
row["IS_NULLABLE"] = reader.GetString(3);
row["DATA_TYPE"] = reader.GetString(1);
row["CHARACTER_MAXIMUM_LENGTH"] = DBNull.Value;
row["CHARACTER_OCTET_LENGTH"] = DBNull.Value;
row["NUMERIC_PRECISION"] = DBNull.Value;
row["NUMERIC_SCALE"] = DBNull.Value;
row["CHARACTER_SET_NAME"] = reader.GetValue(2);
row["COLLATION_NAME"] = row["CHARACTER_SET_NAME"];
row["COLUMN_TYPE"] = reader.GetString(1);
row["COLUMN_KEY"] = reader.GetString(4);
row["EXTRA"] = reader.GetString(6);
row["PRIVILEGES"] = reader.GetString(7);
row["COLUMN_COMMENT"] = reader.GetString(8);
ParseColumnRow(row);
}
}
}
protected MySqlSchemaCollection QueryCollection(string name, string sql)
{
MySqlSchemaCollection c = new MySqlSchemaCollection(name);
MySqlCommand cmd = new MySqlCommand(sql, connection);
MySqlDataReader reader = cmd.ExecuteReader();
for (int i = 0; i < reader.FieldCount; i++)
c.AddColumn(reader.GetName(i), reader.GetFieldType(i));
using (reader)
{
while (reader.Read())
{
MySqlSchemaRow row = c.AddRow();
for (int i = 0; i < reader.FieldCount; i++)
row[i] = reader.GetValue(i);
}
}
return c;
}
public static void SetDSInfo(MySqlSchemaCollection sc)
{
string[] types = new string[] { "BLOB", "TINYBLOB", "MEDIUMBLOB", "LONGBLOB", "BINARY", "VARBINARY" };
MySqlDbType[] dbtype = new MySqlDbType[] { MySqlDbType.Blob,
MySqlDbType.TinyBlob, MySqlDbType.MediumBlob, MySqlDbType.LongBlob, MySqlDbType.Binary, MySqlDbType.VarBinary };
long[] sizes = new long[] { 65535L, 255L, 16777215L, 4294967295L, 255L, 65535L };
string[] format = new string[] { null, null, null, null, "binary({0})", "varbinary({0})" };
string[] parms = new string[] { null, null, null, null, "length", "length" };
// we use name indexing because this method will only be called
// when GetSchema is called for the DataSourceInformation
// collection and then it wil be cached.
for (int x = 0; x < types.Length; x++)
{
MySqlSchemaRow row = sc.AddRow();
row["TypeName"] = types[x];
row["ProviderDbType"] = dbtype[x];
row["ColumnSize"] = sizes[x];
row["CreateFormat"] = format[x];
row["CreateParameters"] = parms[x];
row["DataType"] = "System.Byte[]";
row["IsAutoincrementable"] = false;
row["IsBestMatch"] = true;
row["IsCaseSensitive"] = false;
row["IsFixedLength"] = x < 4 ? false : true;
row["IsFixedPrecisionScale"] = false;
row["IsLong"] = sizes[x] > 255;
row["IsNullable"] = true;
row["IsSearchable"] = false;
row["IsSearchableWithLike"] = false;
row["IsUnsigned"] = DBNull.Value;
row["MaximumScale"] = DBNull.Value;
row["MinimumScale"] = DBNull.Value;
row["IsConcurrencyType"] = DBNull.Value;
row["IsLiteralSupported"] = false;
row["LiteralPrefix"] = "0x";
row["LiteralSuffix"] = DBNull.Value;
row["NativeDataType"] = DBNull.Value;
}
}
public virtual MySqlSchemaCollection GetUDF(string[] restrictions)
{
string sql = "SELECT name,ret,dl FROM mysql.func";
if (restrictions != null)
{
if (restrictions.Length >= 1 && !String.IsNullOrEmpty(restrictions[0]))
sql += String.Format(" WHERE name LIKE '{0}'", restrictions[0]);
}
MySqlSchemaCollection dt = new MySqlSchemaCollection("User-defined Functions");
dt.AddColumn("NAME", typeof(string));
dt.AddColumn("RETURN_TYPE", typeof(int));
dt.AddColumn("LIBRARY_NAME", typeof(string));
MySqlCommand cmd = new MySqlCommand(sql, connection);
try
{
using (MySqlDataReader reader = cmd.ExecuteReader())
{
while (reader.Read())
{
MySqlSchemaRow row = dt.AddRow();
row[0] = reader.GetString(0);
row[1] = reader.GetInt32(1);
row[2] = reader.GetString(2);
}
}
}
catch (MySqlException ex)
{
if (ex.Number != (int)MySqlErrorCode.TableAccessDenied)
throw;
throw new MySqlException(Resources.UnableToEnumerateUDF, ex);
}
return dt;
}
internal static void SetDSInfo(MySqlSchemaCollection sc)
{
string[] types = new string[] { "CHAR", "NCHAR", "VARCHAR", "NVARCHAR", "SET",
"ENUM", "TINYTEXT", "TEXT", "MEDIUMTEXT", "LONGTEXT" };
MySqlDbType[] dbtype = new MySqlDbType[] { MySqlDbType.String, MySqlDbType.String,
MySqlDbType.VarChar, MySqlDbType.VarChar, MySqlDbType.Set, MySqlDbType.Enum,
MySqlDbType.TinyText, MySqlDbType.Text, MySqlDbType.MediumText,
MySqlDbType.LongText };
// we use name indexing because this method will only be called
// when GetSchema is called for the DataSourceInformation
// collection and then it wil be cached.
for (int x = 0; x < types.Length; x++)
{
MySqlSchemaRow row = sc.AddRow();
row["TypeName"] = types[x];
row["ProviderDbType"] = dbtype[x];
row["ColumnSize"] = 0;
row["CreateFormat"] = x < 4 ? types[x] + "({0})" : types[x];
row["CreateParameters"] = x < 4 ? "size" : null;
row["DataType"] = "System.String";
row["IsAutoincrementable"] = false;
row["IsBestMatch"] = true;
row["IsCaseSensitive"] = false;
row["IsFixedLength"] = false;
row["IsFixedPrecisionScale"] = true;
row["IsLong"] = false;
row["IsNullable"] = true;
row["IsSearchable"] = true;
row["IsSearchableWithLike"] = true;
row["IsUnsigned"] = false;
row["MaximumScale"] = 0;
row["MinimumScale"] = 0;
row["IsConcurrencyType"] = DBNull.Value;
row["IsLiteralSupported"] = false;
row["LiteralPrefix"] = null;
row["LiteralSuffix"] = null;
row["NativeDataType"] = null;
}
}
private static void ParseConstraint(MySqlSchemaCollection fkTable, MySqlSchemaRow table,
MySqlTokenizer tokenizer, bool includeColumns)
{
string name = tokenizer.NextToken();
MySqlSchemaRow row = fkTable.AddRow();
// make sure this constraint is a FK
string token = tokenizer.NextToken();
if (token != "foreign" || tokenizer.Quoted)
return;
tokenizer.NextToken(); // read off the 'KEY' symbol
tokenizer.NextToken(); // read off the '(' symbol
row["CONSTRAINT_CATALOG"] = table["TABLE_CATALOG"];
row["CONSTRAINT_SCHEMA"] = table["TABLE_SCHEMA"];
row["TABLE_CATALOG"] = table["TABLE_CATALOG"];
row["TABLE_SCHEMA"] = table["TABLE_SCHEMA"];
row["TABLE_NAME"] = table["TABLE_NAME"];
row["REFERENCED_TABLE_CATALOG"] = null;
row["CONSTRAINT_NAME"] = name.Trim(new char[] { '\'', '`' });
List<string> srcColumns = includeColumns ? ParseColumns(tokenizer) : null;
// now look for the references section
while (token != "references" || tokenizer.Quoted)
token = tokenizer.NextToken();
string target1 = tokenizer.NextToken();
string target2 = tokenizer.NextToken();
if (target2.StartsWith(".", StringComparison.Ordinal))
{
row["REFERENCED_TABLE_SCHEMA"] = target1;
row["REFERENCED_TABLE_NAME"] = target2.Substring(1).Trim(new char[] { '\'', '`' });
tokenizer.NextToken(); // read off the '('
}
else
{
row["REFERENCED_TABLE_SCHEMA"] = table["TABLE_SCHEMA"];
row["REFERENCED_TABLE_NAME"] = target1.Substring(1).Trim(new char[] { '\'', '`' }); ;
}
// if we are supposed to include columns, read the target columns
List<string> targetColumns = includeColumns ? ParseColumns(tokenizer) : null;
if (includeColumns)
ProcessColumns(fkTable, row, srcColumns, targetColumns);
else
fkTable.Rows.Add(row);
}
private static void ProcessColumns(MySqlSchemaCollection fkTable, MySqlSchemaRow row, List<string> srcColumns, List<string> targetColumns)
{
for (int i = 0; i < srcColumns.Count; i++)
{
MySqlSchemaRow newRow = fkTable.AddRow();
row.CopyRow(newRow);
newRow["COLUMN_NAME"] = srcColumns[i];
newRow["ORDINAL_POSITION"] = i;
newRow["REFERENCED_COLUMN_NAME"] = targetColumns[i];
fkTable.Rows.Add(newRow);
}
}
public virtual MySqlSchemaCollection GetProcedures(string[] restrictions)
{
MySqlSchemaCollection dt = new MySqlSchemaCollection("Procedures");
dt.AddColumn("SPECIFIC_NAME", typeof(string));
dt.AddColumn("ROUTINE_CATALOG", typeof(string));
dt.AddColumn("ROUTINE_SCHEMA", typeof(string));
dt.AddColumn("ROUTINE_NAME", typeof(string));
dt.AddColumn("ROUTINE_TYPE", typeof(string));
dt.AddColumn("DTD_IDENTIFIER", typeof(string));
dt.AddColumn("ROUTINE_BODY", typeof(string));
dt.AddColumn("ROUTINE_DEFINITION", typeof(string));
dt.AddColumn("EXTERNAL_NAME", typeof(string));
dt.AddColumn("EXTERNAL_LANGUAGE", typeof(string));
dt.AddColumn("PARAMETER_STYLE", typeof(string));
dt.AddColumn("IS_DETERMINISTIC", typeof(string));
dt.AddColumn("SQL_DATA_ACCESS", typeof(string));
dt.AddColumn("SQL_PATH", typeof(string));
dt.AddColumn("SECURITY_TYPE", typeof(string));
dt.AddColumn("CREATED", typeof(DateTime));
dt.AddColumn("LAST_ALTERED", typeof(DateTime));
dt.AddColumn("SQL_MODE", typeof(string));
dt.AddColumn("ROUTINE_COMMENT", typeof(string));
dt.AddColumn("DEFINER", typeof(string));
StringBuilder sql = new StringBuilder("SELECT * FROM mysql.proc WHERE 1=1");
if (restrictions != null)
{
if (restrictions.Length >= 2 && restrictions[1] != null)
sql.AppendFormat(CultureInfo.InvariantCulture,
" AND db LIKE '{0}'", restrictions[1]);
if (restrictions.Length >= 3 && restrictions[2] != null)
sql.AppendFormat(CultureInfo.InvariantCulture,
" AND name LIKE '{0}'", restrictions[2]);
if (restrictions.Length >= 4 && restrictions[3] != null)
sql.AppendFormat(CultureInfo.InvariantCulture,
" AND type LIKE '{0}'", restrictions[3]);
}
MySqlCommand cmd = new MySqlCommand(sql.ToString(), connection);
using (MySqlDataReader reader = cmd.ExecuteReader())
{
while (reader.Read())
{
MySqlSchemaRow row = dt.AddRow();
row["SPECIFIC_NAME"] = reader.GetString("specific_name");
row["ROUTINE_CATALOG"] = DBNull.Value;
row["ROUTINE_SCHEMA"] = reader.GetString("db");
row["ROUTINE_NAME"] = reader.GetString("name");
string routineType = reader.GetString("type");
row["ROUTINE_TYPE"] = routineType;
row["DTD_IDENTIFIER"] = StringUtility.ToLowerInvariant(routineType) == "function" ?
(object)reader.GetString("returns") : DBNull.Value;
row["ROUTINE_BODY"] = "SQL";
row["ROUTINE_DEFINITION"] = reader.GetString("body");
row["EXTERNAL_NAME"] = DBNull.Value;
row["EXTERNAL_LANGUAGE"] = DBNull.Value;
row["PARAMETER_STYLE"] = "SQL";
row["IS_DETERMINISTIC"] = reader.GetString("is_deterministic");
row["SQL_DATA_ACCESS"] = reader.GetString("sql_data_access");
row["SQL_PATH"] = DBNull.Value;
row["SECURITY_TYPE"] = reader.GetString("security_type");
row["CREATED"] = reader.GetDateTime("created");
row["LAST_ALTERED"] = reader.GetDateTime("modified");
row["SQL_MODE"] = reader.GetString("sql_mode");
row["ROUTINE_COMMENT"] = reader.GetString("comment");
row["DEFINER"] = reader.GetString("definer");
}
}
return dt;
}
public virtual MySqlSchemaCollection GetIndexColumns(string[] restrictions)
{
MySqlSchemaCollection dt = new MySqlSchemaCollection("IndexColumns");
dt.AddColumn("INDEX_CATALOG", typeof(string));
dt.AddColumn("INDEX_SCHEMA", typeof(string));
dt.AddColumn("INDEX_NAME", typeof(string));
dt.AddColumn("TABLE_NAME", typeof(string));
dt.AddColumn("COLUMN_NAME", typeof(string));
dt.AddColumn("ORDINAL_POSITION", typeof(int));
dt.AddColumn("SORT_ORDER", typeof(string));
int max = restrictions == null ? 4 : restrictions.Length;
string[] tableRestrictions = new string[Math.Max(max, 4)];
if (restrictions != null)
{
restrictions.CopyTo(tableRestrictions, 0);
}
tableRestrictions[3] = "BASE TABLE";
MySqlSchemaCollection tables = GetTables(tableRestrictions);
foreach (MySqlSchemaRow table in tables.Rows)
{
string sql = String.Format("SHOW INDEX FROM `{0}`.`{1}`",
table["TABLE_SCHEMA"], table["TABLE_NAME"]);
MySqlCommand cmd = new MySqlCommand(sql, connection);
using (MySqlDataReader reader = cmd.ExecuteReader())
{
while (reader.Read())
{
string key_name = GetString(reader, reader.GetOrdinal("KEY_NAME"));
string col_name = GetString(reader, reader.GetOrdinal("COLUMN_NAME"));
if (restrictions != null)
{
if (restrictions.Length >= 4 && restrictions[3] != null &&
key_name != restrictions[3])
{
continue;
}
if (restrictions.Length >= 5 && restrictions[4] != null &&
col_name != restrictions[4])
{
continue;
}
}
MySqlSchemaRow row = dt.AddRow();
row["INDEX_CATALOG"] = null;
row["INDEX_SCHEMA"] = table["TABLE_SCHEMA"];
row["INDEX_NAME"] = key_name;
row["TABLE_NAME"] = GetString(reader, reader.GetOrdinal("TABLE"));
row["COLUMN_NAME"] = col_name;
row["ORDINAL_POSITION"] = reader.GetValue(reader.GetOrdinal("SEQ_IN_INDEX"));
row["SORT_ORDER"] = reader.GetString("COLLATION");
}
}
}
return(dt);
}
private MySqlSchemaCollection GetDataSourceInformation()
{
#if NETSTANDARD1_6
throw new NotSupportedException();
#else
MySqlSchemaCollection dt = new MySqlSchemaCollection("DataSourceInformation");
dt.AddColumn("CompositeIdentifierSeparatorPattern", typeof(string));
dt.AddColumn("DataSourceProductName", typeof(string));
dt.AddColumn("DataSourceProductVersion", typeof(string));
dt.AddColumn("DataSourceProductVersionNormalized", typeof(string));
dt.AddColumn("GroupByBehavior", typeof(GroupByBehavior));
dt.AddColumn("IdentifierPattern", typeof(string));
dt.AddColumn("IdentifierCase", typeof(IdentifierCase));
dt.AddColumn("OrderByColumnsInSelect", typeof(bool));
dt.AddColumn("ParameterMarkerFormat", typeof(string));
dt.AddColumn("ParameterMarkerPattern", typeof(string));
dt.AddColumn("ParameterNameMaxLength", typeof(int));
dt.AddColumn("ParameterNamePattern", typeof(string));
dt.AddColumn("QuotedIdentifierPattern", typeof(string));
dt.AddColumn("QuotedIdentifierCase", typeof(IdentifierCase));
dt.AddColumn("StatementSeparatorPattern", typeof(string));
dt.AddColumn("StringLiteralPattern", typeof(string));
dt.AddColumn("SupportedJoinOperators", typeof(SupportedJoinOperators));
DBVersion v = connection.driver.Version;
string ver = String.Format("{0:0}.{1:0}.{2:0}",
v.Major, v.Minor, v.Build);
MySqlSchemaRow row = dt.AddRow();
row["CompositeIdentifierSeparatorPattern"] = "\\.";
row["DataSourceProductName"] = "MySQL";
row["DataSourceProductVersion"] = connection.ServerVersion;
row["DataSourceProductVersionNormalized"] = ver;
row["GroupByBehavior"] = GroupByBehavior.Unrelated;
row["IdentifierPattern"] =
@"(^\`\p{Lo}\p{Lu}\p{Ll}_@#][\p{Lo}\p{Lu}\p{Ll}\p{Nd}@$#_]*$)|(^\`[^\`\0]|\`\`+\`$)|(^\"" + [^\""\0]|\""\""+\""$)";
row["IdentifierCase"] = IdentifierCase.Insensitive;
row["OrderByColumnsInSelect"] = false;
row["ParameterMarkerFormat"] = "{0}";
row["ParameterMarkerPattern"] = "(@[A-Za-z0-9_$#]*)";
row["ParameterNameMaxLength"] = 128;
row["ParameterNamePattern"] =
@"^[\p{Lo}\p{Lu}\p{Ll}\p{Lm}_@#][\p{Lo}\p{Lu}\p{Ll}\p{Lm}\p{Nd}\uff3f_@#\$]*(?=\s+|$)";
row["QuotedIdentifierPattern"] = @"(([^\`]|\`\`)*)";
row["QuotedIdentifierCase"] = IdentifierCase.Sensitive;
row["StatementSeparatorPattern"] = ";";
row["StringLiteralPattern"] = "'(([^']|'')*)'";
row["SupportedJoinOperators"] = 15;
dt.Rows.Add(row);
return dt;
#endif
}
public virtual MySqlSchemaCollection GetProcedures(string[] restrictions)
{
MySqlSchemaCollection dt = new MySqlSchemaCollection("Procedures");
dt.AddColumn("SPECIFIC_NAME", typeof(string));
dt.AddColumn("ROUTINE_CATALOG", typeof(string));
dt.AddColumn("ROUTINE_SCHEMA", typeof(string));
dt.AddColumn("ROUTINE_NAME", typeof(string));
dt.AddColumn("ROUTINE_TYPE", typeof(string));
dt.AddColumn("DTD_IDENTIFIER", typeof(string));
dt.AddColumn("ROUTINE_BODY", typeof(string));
dt.AddColumn("ROUTINE_DEFINITION", typeof(string));
dt.AddColumn("EXTERNAL_NAME", typeof(string));
dt.AddColumn("EXTERNAL_LANGUAGE", typeof(string));
dt.AddColumn("PARAMETER_STYLE", typeof(string));
dt.AddColumn("IS_DETERMINISTIC", typeof(string));
dt.AddColumn("SQL_DATA_ACCESS", typeof(string));
dt.AddColumn("SQL_PATH", typeof(string));
dt.AddColumn("SECURITY_TYPE", typeof(string));
dt.AddColumn("CREATED", typeof(DateTime));
dt.AddColumn("LAST_ALTERED", typeof(DateTime));
dt.AddColumn("SQL_MODE", typeof(string));
dt.AddColumn("ROUTINE_COMMENT", typeof(string));
dt.AddColumn("DEFINER", typeof(string));
StringBuilder sql = new StringBuilder("SELECT * FROM mysql.proc WHERE 1=1");
if (restrictions != null)
{
if (restrictions.Length >= 2 && restrictions[1] != null)
{
sql.AppendFormat(CultureInfo.InvariantCulture,
" AND db LIKE '{0}'", restrictions[1]);
}
if (restrictions.Length >= 3 && restrictions[2] != null)
{
sql.AppendFormat(CultureInfo.InvariantCulture,
" AND name LIKE '{0}'", restrictions[2]);
}
if (restrictions.Length >= 4 && restrictions[3] != null)
{
sql.AppendFormat(CultureInfo.InvariantCulture,
" AND type LIKE '{0}'", restrictions[3]);
}
}
MySqlCommand cmd = new MySqlCommand(sql.ToString(), connection);
using (MySqlDataReader reader = cmd.ExecuteReader())
{
while (reader.Read())
{
MySqlSchemaRow row = dt.AddRow();
row["SPECIFIC_NAME"] = reader.GetString("specific_name");
row["ROUTINE_CATALOG"] = DBNull.Value;
row["ROUTINE_SCHEMA"] = reader.GetString("db");
row["ROUTINE_NAME"] = reader.GetString("name");
string routineType = reader.GetString("type");
row["ROUTINE_TYPE"] = routineType;
row["DTD_IDENTIFIER"] = StringUtility.ToLowerInvariant(routineType) == "function" ?
(object)reader.GetString("returns") : DBNull.Value;
row["ROUTINE_BODY"] = "SQL";
row["ROUTINE_DEFINITION"] = reader.GetString("body");
row["EXTERNAL_NAME"] = DBNull.Value;
row["EXTERNAL_LANGUAGE"] = DBNull.Value;
row["PARAMETER_STYLE"] = "SQL";
row["IS_DETERMINISTIC"] = reader.GetString("is_deterministic");
row["SQL_DATA_ACCESS"] = reader.GetString("sql_data_access");
row["SQL_PATH"] = DBNull.Value;
row["SECURITY_TYPE"] = reader.GetString("security_type");
row["CREATED"] = reader.GetDateTime("created");
row["LAST_ALTERED"] = reader.GetDateTime("modified");
row["SQL_MODE"] = reader.GetString("sql_mode");
row["ROUTINE_COMMENT"] = reader.GetString("comment");
row["DEFINER"] = reader.GetString("definer");
}
}
return(dt);
}
private static MySqlSchemaCollection GetReservedWords()
{
MySqlSchemaCollection dt = new MySqlSchemaCollection("ReservedWords");
#if !NETSTANDARD1_6
dt.AddColumn(DbMetaDataColumnNames.ReservedWord, typeof(string));
Stream str = Assembly.GetExecutingAssembly().GetManifestResourceStream(
"Pomelo.Data.MySql.Properties.ReservedWords.txt");
#else
dt.AddColumn("ReservedWord", typeof(string));
Stream str = typeof(SchemaProvider).GetTypeInfo().Assembly.GetManifestResourceStream("Pomelo.Data.MySql.Properties.ReservedWords.txt");
#endif
StreamReader sr = new StreamReader(str);
string line = sr.ReadLine();
while (line != null)
{
string[] keywords = line.Split(new char[] { ' ' });
foreach (string s in keywords)
{
if (String.IsNullOrEmpty(s)) continue;
MySqlSchemaRow row = dt.AddRow();
row[0] = s;
}
line = sr.ReadLine();
}
#if NETSTANDARD1_6
sr.Dispose();
str.Dispose();
#else
sr.Close();
str.Close();
#endif
return dt;
}
internal static void SetDSInfo(MySqlSchemaCollection sc)
{
MySqlSchemaRow row = sc.AddRow();
row["TypeName"] = "JSON";
row["ProviderDbType"] = MySqlDbType.JSON;
row["ColumnSize"] = 0;
row["CreateFormat"] = "JSON";
row["CreateParameters"] = null;
row["DataType"] = "System.String";
row["IsAutoincrementable"] = false;
row["IsBestMatch"] = true;
row["IsCaseSensitive"] = false;
row["IsFixedLength"] = false;
row["IsFixedPrecisionScale"] = true;
row["IsLong"] = false;
row["IsNullable"] = true;
row["IsSearchable"] = true;
row["IsSearchableWithLike"] = true;
row["IsUnsigned"] = false;
row["MaximumScale"] = 0;
row["MinimumScale"] = 0;
row["IsConcurrencyType"] = DBNull.Value;
row["IsLiteralSupported"] = false;
row["LiteralPrefix"] = null;
row["LiteralSuffix"] = null;
row["NativeDataType"] = null;
}
protected static void FillTable(MySqlSchemaCollection dt, object[][] data)
{
foreach (object[] dataItem in data)
{
MySqlSchemaRow row = dt.AddRow();
for (int i = 0; i < dataItem.Length; i++)
row[i] = dataItem[i];
}
}
internal static void SetDSInfo(MySqlSchemaCollection sc)
{
string[] types = new string[] { "MEDIUMINT", "INT" };
MySqlDbType[] dbtype = new MySqlDbType[] { MySqlDbType.UInt24,
MySqlDbType.UInt32 };
// we use name indexing because this method will only be called
// when GetSchema is called for the DataSourceInformation
// collection and then it wil be cached.
for (int x = 0; x < types.Length; x++)
{
MySqlSchemaRow row = sc.AddRow();
row["TypeName"] = types[x];
row["ProviderDbType"] = dbtype[x];
row["ColumnSize"] = 0;
row["CreateFormat"] = types[x] + " UNSIGNED";
row["CreateParameters"] = null;
row["DataType"] = "System.UInt32";
row["IsAutoincrementable"] = true;
row["IsBestMatch"] = true;
row["IsCaseSensitive"] = false;
row["IsFixedLength"] = true;
row["IsFixedPrecisionScale"] = true;
row["IsLong"] = false;
row["IsNullable"] = true;
row["IsSearchable"] = true;
row["IsSearchableWithLike"] = false;
row["IsUnsigned"] = true;
row["MaximumScale"] = 0;
row["MinimumScale"] = 0;
row["IsConcurrencyType"] = DBNull.Value;
row["IsLiteralSupported"] = false;
row["LiteralPrefix"] = null;
row["LiteralSuffix"] = null;
row["NativeDataType"] = null;
}
}
public static void SetDSInfo(MySqlSchemaCollection dsTable)
{
// we use name indexing because this method will only be called
// when GetSchema is called for the DataSourceInformation
// collection and then it wil be cached.
MySqlSchemaRow row = dsTable.AddRow();
row["TypeName"] = "GEOMETRY";
row["ProviderDbType"] = MySqlDbType.Geometry;
row["ColumnSize"] = GEOMETRY_LENGTH;
row["CreateFormat"] = "GEOMETRY";
row["CreateParameters"] = DBNull.Value; ;
row["DataType"] = "System.Byte[]";
row["IsAutoincrementable"] = false;
row["IsBestMatch"] = true;
row["IsCaseSensitive"] = false;
row["IsFixedLength"] = false;
row["IsFixedPrecisionScale"] = true;
row["IsLong"] = false;
row["IsNullable"] = true;
row["IsSearchable"] = true;
row["IsSearchableWithLike"] = false;
row["IsUnsigned"] = false;
row["MaximumScale"] = 0;
row["MinimumScale"] = 0;
row["IsConcurrencyType"] = DBNull.Value;
row["IsLiteralSupported"] = false;
row["LiteralPrefix"] = DBNull.Value;
row["LiteralSuffix"] = DBNull.Value;
row["NativeDataType"] = DBNull.Value;
}