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;
}
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"] = "SMALLINT";
row["ProviderDbType"] = MySqlDbType.UInt16;
row["ColumnSize"] = 0;
row["CreateFormat"] = "SMALLINT UNSIGNED";
row["CreateParameters"] = null;
row["DataType"] = "System.UInt16";
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 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;
}
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 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);
}
}
public override MySqlSchemaCollection GetDatabases(string[] restrictions)
{
string[] keys = new string[1];
keys[0] = "SCHEMA_NAME";
MySqlSchemaCollection dt = Query("SCHEMATA", "", keys, restrictions);
dt.Columns[1].Name = "database_name";
dt.Name = "Databases";
return(dt);
}
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];
}
}
}
private MySqlSchemaCollection GetViews(string[] restrictions)
{
string[] keys = new string[3];
keys[0] = "TABLE_CATALOG";
keys[1] = "TABLE_SCHEMA";
keys[2] = "TABLE_NAME";
MySqlSchemaCollection dt = Query("VIEWS", null, keys, restrictions);
dt.Name = "Views";
return(dt);
}
/// <summary>
/// Returns schema information for the data source of this <see cref="DbConnection"/>
/// using the specified string for the schema name and the specified string array
/// for the restriction values.
/// </summary>
/// <param name="collectionName">Specifies the name of the schema to return.</param>
/// <param name="restrictionValues">Specifies a set of restriction values for the requested schema.</param>
/// <returns>A <see cref="DataTable"/> that contains schema information.</returns>
public override DataTable GetSchema(string collectionName, string[] restrictionValues)
{
if (collectionName == null)
{
collectionName = SchemaProvider.MetaCollection;
}
string[] restrictions = schemaProvider.CleanRestrictions(restrictionValues);
MySqlSchemaCollection c = schemaProvider.GetSchema(collectionName, restrictions);
return(c.AsDataTable());
}
public override MySqlSchemaCollection GetTables(string[] restrictions)
{
string[] keys = new string[4];
keys[0] = "TABLE_CATALOG";
keys[1] = "TABLE_SCHEMA";
keys[2] = "TABLE_NAME";
keys[3] = "TABLE_TYPE";
MySqlSchemaCollection dt = Query("TABLES", "TABLE_TYPE != 'VIEW'", keys, restrictions);
dt.Name = "Tables";
return(dt);
}
public MySqlSchemaCollection GetSchemaCollection(string collectionName, string[] restrictionValues)
{
if (collectionName == null)
{
collectionName = SchemaProvider.MetaCollection;
}
string[] restrictions = schemaProvider.CleanRestrictions(restrictionValues);
MySqlSchemaCollection c = schemaProvider.GetSchema(collectionName, restrictions);
return(c);
}
private MySqlSchemaCollection GetTriggers(string[] restrictions)
{
string[] keys = new string[4];
keys[0] = "TRIGGER_CATALOG";
keys[1] = "TRIGGER_SCHEMA";
keys[2] = "EVENT_OBJECT_TABLE";
keys[3] = "TRIGGER_NAME";
MySqlSchemaCollection dt = Query("TRIGGERS", null, keys, restrictions);
dt.Name = "Triggers";
return(dt);
}
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);
}
}
private MySqlSchemaCollection GetDataSourceInformation()
{
#if NETSTANDARD1_3
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
}
private MySqlSchemaCollection GetProceduresWithParameters(string[] restrictions)
{
MySqlSchemaCollection dt = GetProcedures(restrictions);
dt.AddColumn("ParameterList", typeof(string));
foreach (MySqlSchemaRow row in dt.Rows)
{
row["ParameterList"] = GetProcedureParameterLine(row);
}
return(dt);
}
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);
}
}
}
public override MySqlSchemaCollection GetColumns(string[] restrictions)
{
string[] keys = new string[4];
keys[0] = "TABLE_CATALOG";
keys[1] = "TABLE_SCHEMA";
keys[2] = "TABLE_NAME";
keys[3] = "COLUMN_NAME";
MySqlSchemaCollection dt = Query("COLUMNS", null, keys, restrictions);
dt.RemoveColumn("CHARACTER_OCTET_LENGTH");
dt.Name = "Columns";
QuoteDefaultValues(dt);
return(dt);
}
internal void GetParametersFromShowCreate(MySqlSchemaCollection parametersTable,
string[] restrictions, MySqlSchemaCollection routines)
{
// this allows us to pass in a pre-populated routines table
// and avoid the querying for them again.
// we use this when calling a procedure or function
if (routines == null)
{
routines = GetSchema("procedures", restrictions);
}
MySqlCommand cmd = connection.CreateCommand();
foreach (MySqlSchemaRow routine in routines.Rows)
{
string showCreateSql = String.Format("SHOW CREATE {0} `{1}`.`{2}`",
routine["ROUTINE_TYPE"], routine["ROUTINE_SCHEMA"],
routine["ROUTINE_NAME"]);
cmd.CommandText = showCreateSql;
try
{
string nameToRestrict = null;
if (restrictions != null && restrictions.Length == 5 &&
restrictions[4] != null)
{
nameToRestrict = restrictions[4];
}
using (MySqlDataReader reader = cmd.ExecuteReader())
{
reader.Read();
string body = reader.GetString(2);
#if NETSTANDARD1_3
reader.Dispose();
#else
reader.Close();
#endif
ParseProcedureBody(parametersTable, body, routine, nameToRestrict);
}
}
#if NETSTANDARD1_3
catch (MySqlNullValueException snex)
#else
catch (System.Data.SqlTypes.SqlNullValueException snex)
#endif
{
throw new InvalidOperationException(
String.Format(Resources.UnableToRetrieveParameters, routine["ROUTINE_NAME"]), snex);
}
}
}
private static MySqlSchemaCollection GetDataTypes()
{
MySqlSchemaCollection dt = new MySqlSchemaCollection("DataTypes");
dt.AddColumn("TypeName", typeof(string));
dt.AddColumn("ProviderDbType", typeof(int));
dt.AddColumn("ColumnSize", typeof(long));
dt.AddColumn("CreateFormat", typeof(string));
dt.AddColumn("CreateParameters", typeof(string));
dt.AddColumn("DataType", typeof(string));
dt.AddColumn("IsAutoincrementable", typeof(bool));
dt.AddColumn("IsBestMatch", typeof(bool));
dt.AddColumn("IsCaseSensitive", typeof(bool));
dt.AddColumn("IsFixedLength", typeof(bool));
dt.AddColumn("IsFixedPrecisionScale", typeof(bool));
dt.AddColumn("IsLong", typeof(bool));
dt.AddColumn("IsNullable", typeof(bool));
dt.AddColumn("IsSearchable", typeof(bool));
dt.AddColumn("IsSearchableWithLike", typeof(bool));
dt.AddColumn("IsUnsigned", typeof(bool));
dt.AddColumn("MaximumScale", typeof(short));
dt.AddColumn("MinimumScale", typeof(short));
dt.AddColumn("IsConcurrencyType", typeof(bool));
dt.AddColumn("IsLiteralSupported", typeof(bool));
dt.AddColumn("LiteralPrefix", typeof(string));
dt.AddColumn("LiteralSuffix", typeof(string));
dt.AddColumn("NativeDataType", typeof(string));
// have each one of the types contribute to the datatypes collection
MySqlBit.SetDSInfo(dt);
MySqlBinary.SetDSInfo(dt);
MySqlDateTime.SetDSInfo(dt);
MySqlTimeSpan.SetDSInfo(dt);
MySqlString.SetDSInfo(dt);
MySqlDouble.SetDSInfo(dt);
MySqlSingle.SetDSInfo(dt);
MySqlByte.SetDSInfo(dt);
MySqlInt16.SetDSInfo(dt);
MySqlInt32.SetDSInfo(dt);
MySqlInt64.SetDSInfo(dt);
MySqlDecimal.SetDSInfo(dt);
MySqlUByte.SetDSInfo(dt);
MySqlUInt16.SetDSInfo(dt);
MySqlUInt32.SetDSInfo(dt);
MySqlUInt64.SetDSInfo(dt);
return(dt);
}
public virtual MySqlSchemaCollection GetTables(string[] restrictions)
{
MySqlSchemaCollection c = new MySqlSchemaCollection("Tables");
c.AddColumn("TABLE_CATALOG", typeof(string));
c.AddColumn("TABLE_SCHEMA", typeof(string));
c.AddColumn("TABLE_NAME", typeof(string));
c.AddColumn("TABLE_TYPE", typeof(string));
c.AddColumn("ENGINE", typeof(string));
c.AddColumn("VERSION", typeof(ulong));
c.AddColumn("ROW_FORMAT", typeof(string));
c.AddColumn("TABLE_ROWS", typeof(ulong));
c.AddColumn("AVG_ROW_LENGTH", typeof(ulong));
c.AddColumn("DATA_LENGTH", typeof(ulong));
c.AddColumn("MAX_DATA_LENGTH", typeof(ulong));
c.AddColumn("INDEX_LENGTH", typeof(ulong));
c.AddColumn("DATA_FREE", typeof(ulong));
c.AddColumn("AUTO_INCREMENT", typeof(ulong));
c.AddColumn("CREATE_TIME", typeof(DateTime));
c.AddColumn("UPDATE_TIME", typeof(DateTime));
c.AddColumn("CHECK_TIME", typeof(DateTime));
c.AddColumn("TABLE_COLLATION", typeof(string));
c.AddColumn("CHECKSUM", typeof(ulong));
c.AddColumn("CREATE_OPTIONS", typeof(string));
c.AddColumn("TABLE_COMMENT", typeof(string));
// we have to new up a new restriction array here since
// GetDatabases takes the database in the first slot
string[] dbRestriction = new string[4];
if (restrictions != null && restrictions.Length >= 2)
{
dbRestriction[0] = restrictions[1];
}
MySqlSchemaCollection databases = GetDatabases(dbRestriction);
if (restrictions != null)
{
Array.Copy(restrictions, dbRestriction,
Math.Min(dbRestriction.Length, restrictions.Length));
}
foreach (MySqlSchemaRow row in databases.Rows)
{
dbRestriction[1] = row["SCHEMA_NAME"].ToString();
FindTables(c, dbRestriction);
}
return(c);
}
public virtual MySqlSchemaCollection GetUsers(string[] restrictions)
{
StringBuilder sb = new StringBuilder("SELECT Host, User FROM mysql.user");
if (restrictions != null && restrictions.Length > 0)
{
sb.AppendFormat(CultureInfo.InvariantCulture, " WHERE User LIKE '{0}'", restrictions[0]);
}
MySqlSchemaCollection c = QueryCollection("Users", sb.ToString());
c.Columns[0].Name = "HOST";
c.Columns[1].Name = "USERNAME";
return(c);
}
protected override MySqlSchemaCollection GetCollections()
{
MySqlSchemaCollection dt = base.GetCollections();
object[][] collections = new object[][]
{
new object[] { "Views", 2, 3 },
new object[] { "ViewColumns", 3, 4 },
new object[] { "Procedure Parameters", 5, 1 },
new object[] { "Procedures", 4, 3 },
new object[] { "Triggers", 2, 4 }
};
FillTable(dt, collections);
return(dt);
}
public virtual MySqlSchemaCollection GetSchema(string collection, String[] restrictions)
{
if (connection.State != ConnectionState.Open)
{
throw new MySqlException("GetSchema can only be called on an open connection.");
}
collection = StringUtility.ToUpperInvariant(collection);
MySqlSchemaCollection c = GetSchemaInternal(collection, restrictions);
if (c == null)
{
throw new ArgumentException("Invalid collection name");
}
return(c);
}
protected virtual MySqlSchemaCollection GetRestrictions()
{
object[][] restrictions = new object[][]
{
new object[] { "Users", "Name", "", 0 },
new object[] { "Databases", "Name", "", 0 },
new object[] { "Tables", "Database", "", 0 },
new object[] { "Tables", "Schema", "", 1 },
new object[] { "Tables", "Table", "", 2 },
new object[] { "Tables", "TableType", "", 3 },
new object[] { "Columns", "Database", "", 0 },
new object[] { "Columns", "Schema", "", 1 },
new object[] { "Columns", "Table", "", 2 },
new object[] { "Columns", "Column", "", 3 },
new object[] { "Indexes", "Database", "", 0 },
new object[] { "Indexes", "Schema", "", 1 },
new object[] { "Indexes", "Table", "", 2 },
new object[] { "Indexes", "Name", "", 3 },
new object[] { "IndexColumns", "Database", "", 0 },
new object[] { "IndexColumns", "Schema", "", 1 },
new object[] { "IndexColumns", "Table", "", 2 },
new object[] { "IndexColumns", "ConstraintName", "", 3 },
new object[] { "IndexColumns", "Column", "", 4 },
new object[] { "Foreign Keys", "Database", "", 0 },
new object[] { "Foreign Keys", "Schema", "", 1 },
new object[] { "Foreign Keys", "Table", "", 2 },
new object[] { "Foreign Keys", "Constraint Name", "", 3 },
new object[] { "Foreign Key Columns", "Catalog", "", 0 },
new object[] { "Foreign Key Columns", "Schema", "", 1 },
new object[] { "Foreign Key Columns", "Table", "", 2 },
new object[] { "Foreign Key Columns", "Constraint Name", "", 3 },
new object[] { "UDF", "Name", "", 0 }
};
MySqlSchemaCollection dt = new MySqlSchemaCollection("Restrictions");
dt.AddColumn("CollectionName", typeof(string));
dt.AddColumn("RestrictionName", typeof(string));
dt.AddColumn("RestrictionDefault", typeof(string));
dt.AddColumn("RestrictionNumber", typeof(int));
FillTable(dt, restrictions);
return(dt);
}
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);
}
private MySqlSchemaCollection GetViewColumns(string[] restrictions)
{
StringBuilder where = new StringBuilder();
StringBuilder sql = new StringBuilder(
"SELECT C.* FROM information_schema.columns C");
sql.Append(" JOIN information_schema.views V ");
sql.Append("ON C.table_schema=V.table_schema AND C.table_name=V.table_name ");
if (restrictions != null && restrictions.Length >= 2 &&
restrictions[1] != null)
{
where.AppendFormat(CultureInfo.InvariantCulture, "C.table_schema='{0}' ", restrictions[1]);
}
if (restrictions != null && restrictions.Length >= 3 &&
restrictions[2] != null)
{
if (where.Length > 0)
{
where.Append("AND ");
}
where.AppendFormat(CultureInfo.InvariantCulture, "C.table_name='{0}' ", restrictions[2]);
}
if (restrictions != null && restrictions.Length == 4 &&
restrictions[3] != null)
{
if (where.Length > 0)
{
where.Append("AND ");
}
where.AppendFormat(CultureInfo.InvariantCulture, "C.column_name='{0}' ", restrictions[3]);
}
if (where.Length > 0)
{
sql.AppendFormat(CultureInfo.InvariantCulture, " WHERE {0}", where);
}
MySqlSchemaCollection dt = GetTable(sql.ToString());
dt.Name = "ViewColumns";
dt.Columns[0].Name = "VIEW_CATALOG";
dt.Columns[1].Name = "VIEW_SCHEMA";
dt.Columns[2].Name = "VIEW_NAME";
QuoteDefaultValues(dt);
return(dt);
}
public virtual MySqlSchemaCollection GetTables(string[] restrictions)
{
MySqlSchemaCollection c = new MySqlSchemaCollection("Tables");
c.AddColumn("TABLE_CATALOG", typeof(string));
c.AddColumn("TABLE_SCHEMA", typeof(string));
c.AddColumn("TABLE_NAME", typeof(string));
c.AddColumn("TABLE_TYPE", typeof(string));
c.AddColumn("ENGINE", typeof(string));
c.AddColumn("VERSION", typeof(ulong));
c.AddColumn("ROW_FORMAT", typeof(string));
c.AddColumn("TABLE_ROWS", typeof(ulong));
c.AddColumn("AVG_ROW_LENGTH", typeof(ulong));
c.AddColumn("DATA_LENGTH", typeof(ulong));
c.AddColumn("MAX_DATA_LENGTH", typeof(ulong));
c.AddColumn("INDEX_LENGTH", typeof(ulong));
c.AddColumn("DATA_FREE", typeof(ulong));
c.AddColumn("AUTO_INCREMENT", typeof(ulong));
c.AddColumn("CREATE_TIME", typeof(DateTime));
c.AddColumn("UPDATE_TIME", typeof(DateTime));
c.AddColumn("CHECK_TIME", typeof(DateTime));
c.AddColumn("TABLE_COLLATION", typeof(string));
c.AddColumn("CHECKSUM", typeof(ulong));
c.AddColumn("CREATE_OPTIONS", typeof(string));
c.AddColumn("TABLE_COMMENT", typeof(string));
// we have to new up a new restriction array here since
// GetDatabases takes the database in the first slot
string[] dbRestriction = new string[4];
if (restrictions != null && restrictions.Length >= 2)
dbRestriction[0] = restrictions[1];
MySqlSchemaCollection databases = GetDatabases(dbRestriction);
if (restrictions != null)
Array.Copy(restrictions, dbRestriction,
Math.Min(dbRestriction.Length, restrictions.Length));
foreach (MySqlSchemaRow row in databases.Rows)
{
dbRestriction[1] = row["SCHEMA_NAME"].ToString();
FindTables(c, dbRestriction);
}
return c;
}
public virtual MySqlSchemaCollection GetColumns(string[] restrictions)
{
MySqlSchemaCollection c = new MySqlSchemaCollection("Columns");
c.AddColumn("TABLE_CATALOG", typeof(string));
c.AddColumn("TABLE_SCHEMA", typeof(string));
c.AddColumn("TABLE_NAME", typeof(string));
c.AddColumn("COLUMN_NAME", typeof(string));
c.AddColumn("ORDINAL_POSITION", typeof(ulong));
c.AddColumn("COLUMN_DEFAULT", typeof(string));
c.AddColumn("IS_NULLABLE", typeof(string));
c.AddColumn("DATA_TYPE", typeof(string));
c.AddColumn("CHARACTER_MAXIMUM_LENGTH", typeof(ulong));
c.AddColumn("CHARACTER_OCTET_LENGTH", typeof(ulong));
c.AddColumn("NUMERIC_PRECISION", typeof(ulong));
c.AddColumn("NUMERIC_SCALE", typeof(ulong));
c.AddColumn("CHARACTER_SET_NAME", typeof(string));
c.AddColumn("COLLATION_NAME", typeof(string));
c.AddColumn("COLUMN_TYPE", typeof(string));
c.AddColumn("COLUMN_KEY", typeof(string));
c.AddColumn("EXTRA", typeof(string));
c.AddColumn("PRIVILEGES", typeof(string));
c.AddColumn("COLUMN_COMMENT", typeof(string));
// we don't allow restricting on table type here
string columnName = null;
if (restrictions != null && restrictions.Length == 4)
{
columnName = restrictions[3];
restrictions[3] = null;
}
MySqlSchemaCollection tables = GetTables(restrictions);
foreach (MySqlSchemaRow row in tables.Rows)
{
LoadTableColumns(c, row["TABLE_SCHEMA"].ToString(),
row["TABLE_NAME"].ToString(), columnName);
}
QuoteDefaultValues(c);
return(c);
}
private static ProcedureCacheEntry GetProcData(MySqlConnection connection, string spName)
{
string schema = String.Empty;
string name = spName;
int dotIndex = spName.IndexOf(".");
if (dotIndex != -1)
{
schema = spName.Substring(0, dotIndex);
name = spName.Substring(dotIndex + 1, spName.Length - dotIndex - 1);
}
string[] restrictions = new string[4];
restrictions[1] = schema.Length > 0 ? schema : connection.CurrentDatabase();
restrictions[2] = name;
MySqlSchemaCollection proc = connection.GetSchemaCollection("procedures", restrictions);
if (proc.Rows.Count > 1)
{
throw new MySqlException(Resources.ProcAndFuncSameName);
}
if (proc.Rows.Count == 0)
{
throw new MySqlException(String.Format(Resources.InvalidProcName, name, schema));
}
ProcedureCacheEntry entry = new ProcedureCacheEntry();
entry.procedure = proc;
// we don't use GetSchema here because that would cause another
// query of procedures and we don't need that since we already
// know the procedure we care about.
ISSchemaProvider isp = new ISSchemaProvider(connection);
string[] rest = isp.CleanRestrictions(restrictions);
MySqlSchemaCollection parameters = isp.GetProcedureParameters(rest, proc);
entry.parameters = parameters;
return(entry);
}
/// <summary>
/// GetForeignKeysOnTable retrieves the foreign keys on the given table.
/// Since MySQL supports foreign keys on versions prior to 5.0, we can't use
/// information schema. MySQL also does not include any type of SHOW command
/// for foreign keys so we have to resort to use SHOW CREATE TABLE and parsing
/// the output.
/// </summary>
/// <param name="fkTable">The table to store the key info in.</param>
/// <param name="tableToParse">The table to get the foeign key info for.</param>
/// <param name="filterName">Only get foreign keys that match this name.</param>
/// <param name="includeColumns">Should column information be included in the table.</param>
private void GetForeignKeysOnTable(MySqlSchemaCollection fkTable, MySqlSchemaRow tableToParse,
string filterName, bool includeColumns)
{
string sqlMode = GetSqlMode();
if (filterName != null)
{
filterName = StringUtility.ToLowerInvariant(filterName);
}
string sql = string.Format("SHOW CREATE TABLE `{0}`.`{1}`",
tableToParse["TABLE_SCHEMA"], tableToParse["TABLE_NAME"]);
string lowerBody = null, body = null;
MySqlCommand cmd = new MySqlCommand(sql, connection);
using (MySqlDataReader reader = cmd.ExecuteReader())
{
reader.Read();
body = reader.GetString(1);
lowerBody = StringUtility.ToLowerInvariant(body);
}
MySqlTokenizer tokenizer = new MySqlTokenizer(lowerBody);
tokenizer.AnsiQuotes = sqlMode.IndexOf("ANSI_QUOTES") != -1;
tokenizer.BackslashEscapes = sqlMode.IndexOf("NO_BACKSLASH_ESCAPES") != -1;
while (true)
{
string token = tokenizer.NextToken();
// look for a starting contraint
while (token != null && (token != "constraint" || tokenizer.Quoted))
{
token = tokenizer.NextToken();
}
if (token == null)
{
break;
}
ParseConstraint(fkTable, tableToParse, tokenizer, includeColumns);
}
}
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 void QuoteDefaultValues(MySqlSchemaCollection schemaCollection)
{
if (schemaCollection == null)
{
return;
}
if (!schemaCollection.ContainsColumn("COLUMN_DEFAULT"))
{
return;
}
foreach (MySqlSchemaRow row in schemaCollection.Rows)
{
object defaultValue = row["COLUMN_DEFAULT"];
if (MetaData.IsTextType(row["DATA_TYPE"].ToString()))
{
row["COLUMN_DEFAULT"] = String.Format("{0}", defaultValue);
}
}
}
internal MySqlSchemaCollection CreateParametersTable()
{
MySqlSchemaCollection dt = new MySqlSchemaCollection("Procedure Parameters");
dt.AddColumn("SPECIFIC_CATALOG", typeof(string));
dt.AddColumn("SPECIFIC_SCHEMA", typeof(string));
dt.AddColumn("SPECIFIC_NAME", typeof(string));
dt.AddColumn("ORDINAL_POSITION", typeof(Int32));
dt.AddColumn("PARAMETER_MODE", typeof(string));
dt.AddColumn("PARAMETER_NAME", typeof(string));
dt.AddColumn("DATA_TYPE", typeof(string));
dt.AddColumn("CHARACTER_MAXIMUM_LENGTH", typeof(Int32));
dt.AddColumn("CHARACTER_OCTET_LENGTH", typeof(Int32));
dt.AddColumn("NUMERIC_PRECISION", typeof(byte));
dt.AddColumn("NUMERIC_SCALE", typeof(Int32));
dt.AddColumn("CHARACTER_SET_NAME", typeof(string));
dt.AddColumn("COLLATION_NAME", typeof(string));
dt.AddColumn("DTD_IDENTIFIER", typeof(string));
dt.AddColumn("ROUTINE_TYPE", typeof(string));
return(dt);
}
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 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;
}
protected virtual MySqlSchemaCollection GetCollections()
{
object[][] collections = new object[][]
{
new object[] {"MetaDataCollections", 0, 0},
new object[] {"DataSourceInformation", 0, 0},
new object[] {"DataTypes", 0, 0},
new object[] {"Restrictions", 0, 0},
new object[] {"ReservedWords", 0, 0},
new object[] {"Databases", 1, 1},
new object[] {"Tables", 4, 2},
new object[] {"Columns", 4, 4},
new object[] {"Users", 1, 1},
new object[] {"Foreign Keys", 4, 3},
new object[] {"IndexColumns", 5, 4},
new object[] {"Indexes", 4, 3},
new object[] {"Foreign Key Columns", 4, 3},
new object[] {"UDF", 1, 1}
};
MySqlSchemaCollection dt = new MySqlSchemaCollection("MetaDataCollections");
dt.AddColumn("CollectionName", typeof(string));
dt.AddColumn("NumberOfRestrictions", typeof(int));
dt.AddColumn("NumberOfIdentifierParts", typeof(int));
FillTable(dt, collections);
return dt;
}
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);
}
}
}
public virtual MySqlSchemaCollection GetForeignKeyColumns(string[] restrictions)
{
MySqlSchemaCollection dt = new MySqlSchemaCollection("Foreign Keys");
dt.AddColumn("CONSTRAINT_CATALOG", typeof(string));
dt.AddColumn("CONSTRAINT_SCHEMA", typeof(string));
dt.AddColumn("CONSTRAINT_NAME", typeof(string));
dt.AddColumn("TABLE_CATALOG", typeof(string));
dt.AddColumn("TABLE_SCHEMA", typeof(string));
dt.AddColumn("TABLE_NAME", typeof(string));
dt.AddColumn("COLUMN_NAME", typeof(string));
dt.AddColumn("ORDINAL_POSITION", typeof(int));
dt.AddColumn("REFERENCED_TABLE_CATALOG", typeof(string));
dt.AddColumn("REFERENCED_TABLE_SCHEMA", typeof(string));
dt.AddColumn("REFERENCED_TABLE_NAME", typeof(string));
dt.AddColumn("REFERENCED_COLUMN_NAME", typeof(string));
// first we use our restrictions to get a list of tables that should be
// consulted. We save the keyname restriction since GetTables doesn't
// understand that.
string keyName = null;
if (restrictions != null && restrictions.Length >= 4)
{
keyName = restrictions[3];
restrictions[3] = null;
}
MySqlSchemaCollection tables = GetTables(restrictions);
// now for each table retrieved, we call our helper function to
// parse it's foreign keys
foreach (MySqlSchemaRow table in tables.Rows)
GetForeignKeysOnTable(dt, table, keyName, true);
return dt;
}
/// <summary>
/// Return schema information about parameters for procedures and functions
/// Restrictions supported are:
/// schema, name, type, parameter name
/// </summary>
public virtual MySqlSchemaCollection GetProcedureParameters(string[] restrictions,
MySqlSchemaCollection routines)
{
bool is55 = connection.driver.Version.isAtLeast(5, 5, 3);
try
{
// we want to avoid using IS if we can as it is painfully slow
MySqlSchemaCollection dt = CreateParametersTable();
GetParametersFromShowCreate(dt, restrictions, routines);
return dt;
}
catch (Exception)
{
if (!is55) throw;
// we get here by not having access and we are on 5.5 or later so just use IS
return GetParametersFromIS(restrictions, routines);
}
}
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;
}
protected void QuoteDefaultValues(MySqlSchemaCollection schemaCollection)
{
if (schemaCollection == null) return;
if (!schemaCollection.ContainsColumn("COLUMN_DEFAULT")) return;
foreach (MySqlSchemaRow row in schemaCollection.Rows)
{
object defaultValue = row["COLUMN_DEFAULT"];
if (MetaData.IsTextType(row["DATA_TYPE"].ToString()))
row["COLUMN_DEFAULT"] = String.Format("{0}", defaultValue);
}
}
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;
}
internal void GetParametersFromShowCreate(MySqlSchemaCollection parametersTable,
string[] restrictions, MySqlSchemaCollection routines)
{
// this allows us to pass in a pre-populated routines table
// and avoid the querying for them again.
// we use this when calling a procedure or function
if (routines == null)
routines = GetSchema("procedures", restrictions);
MySqlCommand cmd = connection.CreateCommand();
foreach (MySqlSchemaRow routine in routines.Rows)
{
string showCreateSql = String.Format("SHOW CREATE {0} `{1}`.`{2}`",
routine["ROUTINE_TYPE"], routine["ROUTINE_SCHEMA"],
routine["ROUTINE_NAME"]);
cmd.CommandText = showCreateSql;
try
{
string nameToRestrict = null;
if (restrictions != null && restrictions.Length == 5 &&
restrictions[4] != null)
nameToRestrict = restrictions[4];
using (MySqlDataReader reader = cmd.ExecuteReader())
{
reader.Read();
string body = reader.GetString(2);
#if NETSTANDARD1_6
reader.Dispose();
#else
reader.Close();
#endif
ParseProcedureBody(parametersTable, body, routine, nameToRestrict);
}
}
#if NETSTANDARD1_6
catch (MySqlNullValueException snex)
#else
catch (System.Data.SqlTypes.SqlNullValueException snex)
#endif
{
throw new InvalidOperationException(
String.Format(Resources.UnableToRetrieveParameters, routine["ROUTINE_NAME"]), snex);
}
}
}
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 GetColumns(string[] restrictions)
{
MySqlSchemaCollection c = new MySqlSchemaCollection("Columns");
c.AddColumn("TABLE_CATALOG", typeof(string));
c.AddColumn("TABLE_SCHEMA", typeof(string));
c.AddColumn("TABLE_NAME", typeof(string));
c.AddColumn("COLUMN_NAME", typeof(string));
c.AddColumn("ORDINAL_POSITION", typeof(ulong));
c.AddColumn("COLUMN_DEFAULT", typeof(string));
c.AddColumn("IS_NULLABLE", typeof(string));
c.AddColumn("DATA_TYPE", typeof(string));
c.AddColumn("CHARACTER_MAXIMUM_LENGTH", typeof(ulong));
c.AddColumn("CHARACTER_OCTET_LENGTH", typeof(ulong));
c.AddColumn("NUMERIC_PRECISION", typeof(ulong));
c.AddColumn("NUMERIC_SCALE", typeof(ulong));
c.AddColumn("CHARACTER_SET_NAME", typeof(string));
c.AddColumn("COLLATION_NAME", typeof(string));
c.AddColumn("COLUMN_TYPE", typeof(string));
c.AddColumn("COLUMN_KEY", typeof(string));
c.AddColumn("EXTRA", typeof(string));
c.AddColumn("PRIVILEGES", typeof(string));
c.AddColumn("COLUMN_COMMENT", typeof(string));
// we don't allow restricting on table type here
string columnName = null;
if (restrictions != null && restrictions.Length == 4)
{
columnName = restrictions[3];
restrictions[3] = null;
}
MySqlSchemaCollection tables = GetTables(restrictions);
foreach (MySqlSchemaRow row in tables.Rows)
LoadTableColumns(c, row["TABLE_SCHEMA"].ToString(),
row["TABLE_NAME"].ToString(), columnName);
QuoteDefaultValues(c);
return c;
}
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);
}
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];
}
}
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);
}
}
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;
}
/// <summary>
/// GetForeignKeysOnTable retrieves the foreign keys on the given table.
/// Since MySQL supports foreign keys on versions prior to 5.0, we can't use
/// information schema. MySQL also does not include any type of SHOW command
/// for foreign keys so we have to resort to use SHOW CREATE TABLE and parsing
/// the output.
/// </summary>
/// <param name="fkTable">The table to store the key info in.</param>
/// <param name="tableToParse">The table to get the foeign key info for.</param>
/// <param name="filterName">Only get foreign keys that match this name.</param>
/// <param name="includeColumns">Should column information be included in the table.</param>
private void GetForeignKeysOnTable(MySqlSchemaCollection fkTable, MySqlSchemaRow tableToParse,
string filterName, bool includeColumns)
{
string sqlMode = GetSqlMode();
if (filterName != null)
filterName = StringUtility.ToLowerInvariant(filterName);
string sql = string.Format("SHOW CREATE TABLE `{0}`.`{1}`",
tableToParse["TABLE_SCHEMA"], tableToParse["TABLE_NAME"]);
string lowerBody = null, body = null;
MySqlCommand cmd = new MySqlCommand(sql, connection);
using (MySqlDataReader reader = cmd.ExecuteReader())
{
reader.Read();
body = reader.GetString(1);
lowerBody = StringUtility.ToLowerInvariant(body);
}
MySqlTokenizer tokenizer = new MySqlTokenizer(lowerBody);
tokenizer.AnsiQuotes = sqlMode.IndexOf("ANSI_QUOTES") != -1;
tokenizer.BackslashEscapes = sqlMode.IndexOf("NO_BACKSLASH_ESCAPES") != -1;
while (true)
{
string token = tokenizer.NextToken();
// look for a starting contraint
while (token != null && (token != "constraint" || tokenizer.Quoted))
token = tokenizer.NextToken();
if (token == null) break;
ParseConstraint(fkTable, tableToParse, tokenizer, includeColumns);
}
}
protected virtual MySqlSchemaCollection GetRestrictions()
{
object[][] restrictions = new object[][]
{
new object[] {"Users", "Name", "", 0},
new object[] {"Databases", "Name", "", 0},
new object[] {"Tables", "Database", "", 0},
new object[] {"Tables", "Schema", "", 1},
new object[] {"Tables", "Table", "", 2},
new object[] {"Tables", "TableType", "", 3},
new object[] {"Columns", "Database", "", 0},
new object[] {"Columns", "Schema", "", 1},
new object[] {"Columns", "Table", "", 2},
new object[] {"Columns", "Column", "", 3},
new object[] {"Indexes", "Database", "", 0},
new object[] {"Indexes", "Schema", "", 1},
new object[] {"Indexes", "Table", "", 2},
new object[] {"Indexes", "Name", "", 3},
new object[] {"IndexColumns", "Database", "", 0},
new object[] {"IndexColumns", "Schema", "", 1},
new object[] {"IndexColumns", "Table", "", 2},
new object[] {"IndexColumns", "ConstraintName", "", 3},
new object[] {"IndexColumns", "Column", "", 4},
new object[] {"Foreign Keys", "Database", "", 0},
new object[] {"Foreign Keys", "Schema", "", 1},
new object[] {"Foreign Keys", "Table", "", 2},
new object[] {"Foreign Keys", "Constraint Name", "", 3},
new object[] {"Foreign Key Columns", "Catalog", "", 0},
new object[] {"Foreign Key Columns", "Schema", "", 1},
new object[] {"Foreign Key Columns", "Table", "", 2},
new object[] {"Foreign Key Columns", "Constraint Name", "", 3},
new object[] {"UDF", "Name", "", 0}
};
MySqlSchemaCollection dt = new MySqlSchemaCollection("Restrictions");
dt.AddColumn("CollectionName", typeof(string));
dt.AddColumn("RestrictionName", typeof(string));
dt.AddColumn("RestrictionDefault", typeof(string));
dt.AddColumn("RestrictionNumber", typeof(int));
FillTable(dt, restrictions);
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 static MySqlSchemaCollection GetDataTypes()
{
MySqlSchemaCollection dt = new MySqlSchemaCollection("DataTypes");
dt.AddColumn("TypeName", typeof(string));
dt.AddColumn("ProviderDbType", typeof(int));
dt.AddColumn("ColumnSize", typeof(long));
dt.AddColumn("CreateFormat", typeof(string));
dt.AddColumn("CreateParameters", typeof(string));
dt.AddColumn("DataType", typeof(string));
dt.AddColumn("IsAutoincrementable", typeof(bool));
dt.AddColumn("IsBestMatch", typeof(bool));
dt.AddColumn("IsCaseSensitive", typeof(bool));
dt.AddColumn("IsFixedLength", typeof(bool));
dt.AddColumn("IsFixedPrecisionScale", typeof(bool));
dt.AddColumn("IsLong", typeof(bool));
dt.AddColumn("IsNullable", typeof(bool));
dt.AddColumn("IsSearchable", typeof(bool));
dt.AddColumn("IsSearchableWithLike", typeof(bool));
dt.AddColumn("IsUnsigned", typeof(bool));
dt.AddColumn("MaximumScale", typeof(short));
dt.AddColumn("MinimumScale", typeof(short));
dt.AddColumn("IsConcurrencyType", typeof(bool));
dt.AddColumn("IsLiteralSupported", typeof(bool));
dt.AddColumn("LiteralPrefix", typeof(string));
dt.AddColumn("LiteralSuffix", typeof(string));
dt.AddColumn("NativeDataType", typeof(string));
// have each one of the types contribute to the datatypes collection
MySqlBit.SetDSInfo(dt);
MySqlBinary.SetDSInfo(dt);
MySqlDateTime.SetDSInfo(dt);
MySqlTimeSpan.SetDSInfo(dt);
MySqlString.SetDSInfo(dt);
MySqlDouble.SetDSInfo(dt);
MySqlSingle.SetDSInfo(dt);
MySqlByte.SetDSInfo(dt);
MySqlInt16.SetDSInfo(dt);
MySqlInt32.SetDSInfo(dt);
MySqlInt64.SetDSInfo(dt);
MySqlDecimal.SetDSInfo(dt);
MySqlUByte.SetDSInfo(dt);
MySqlUInt16.SetDSInfo(dt);
MySqlUInt32.SetDSInfo(dt);
MySqlUInt64.SetDSInfo(dt);
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 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 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);
}
}
}
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;
}
}
internal MySqlSchemaCollection CreateParametersTable()
{
MySqlSchemaCollection dt = new MySqlSchemaCollection("Procedure Parameters");
dt.AddColumn("SPECIFIC_CATALOG", typeof(string));
dt.AddColumn("SPECIFIC_SCHEMA", typeof(string));
dt.AddColumn("SPECIFIC_NAME", typeof(string));
dt.AddColumn("ORDINAL_POSITION", typeof(Int32));
dt.AddColumn("PARAMETER_MODE", typeof(string));
dt.AddColumn("PARAMETER_NAME", typeof(string));
dt.AddColumn("DATA_TYPE", typeof(string));
dt.AddColumn("CHARACTER_MAXIMUM_LENGTH", typeof(Int32));
dt.AddColumn("CHARACTER_OCTET_LENGTH", typeof(Int32));
dt.AddColumn("NUMERIC_PRECISION", typeof(byte));
dt.AddColumn("NUMERIC_SCALE", typeof(Int32));
dt.AddColumn("CHARACTER_SET_NAME", typeof(string));
dt.AddColumn("COLLATION_NAME", typeof(string));
dt.AddColumn("DTD_IDENTIFIER", typeof(string));
dt.AddColumn("ROUTINE_TYPE", typeof(string));
return dt;
}
