138 lines
4.7 KiB
C#
138 lines
4.7 KiB
C#
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2018
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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using System;
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using System.Data;
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namespace ASC.Common.Data.Sql.Dialects
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{
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class MySQLDialect : ISqlDialect
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{
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public string IdentityQuery
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{
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get { return "last_insert_id()"; }
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}
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public string Autoincrement
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{
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get { return "auto_increment"; }
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}
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public virtual string InsertIgnore
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{
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get { return "insert ignore"; }
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}
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public bool SupportMultiTableUpdate
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{
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get { return true; }
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}
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public bool SeparateCreateIndex
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{
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get { return false; }
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}
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public string DbTypeToString(DbType type, int size, int precision)
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{
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switch (type)
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{
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case DbType.Guid:
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return "char(38)";
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case DbType.AnsiString:
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case DbType.String:
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if (size <= 8192) return string.Format("VARCHAR({0})", size);
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else if (size <= UInt16.MaxValue) return "TEXT";
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else if (size <= ((int)Math.Pow(2, 24) - 1)) return "MEDIUMTEXT";
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else return "LONGTEXT";
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case DbType.AnsiStringFixedLength:
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case DbType.StringFixedLength:
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return string.Format("CHAR({0})", size);
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case DbType.Xml:
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return "MEDIUMTEXT";
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case DbType.Binary:
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case DbType.Object:
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if (size <= 8192) return string.Format("BINARY({0})", size);
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else if (size <= UInt16.MaxValue) return "BLOB";
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else if (size <= ((int)Math.Pow(2, 24) - 1)) return "MEDIUMBLOB";
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else return "LONGBLOB";
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case DbType.Boolean:
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case DbType.Byte:
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return "TINYINY";
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case DbType.SByte:
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return "TINYINY UNSIGNED";
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case DbType.Int16:
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return "SMALLINT";
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case DbType.UInt16:
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return "SMALLINT UNSIGNED";
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case DbType.Int32:
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return "INT";
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case DbType.UInt32:
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return "INT UNSIGNED";
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case DbType.Int64:
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return "BIGINT";
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case DbType.UInt64:
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return "BIGINT UNSIGNED";
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case DbType.Date:
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return "DATE";
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case DbType.DateTime:
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case DbType.DateTime2:
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return "DATETIME";
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case DbType.Time:
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return "TIME";
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case DbType.Decimal:
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return string.Format("DECIMAL({0},{1})", size, precision);
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case DbType.Double:
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return "DOUBLE";
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case DbType.Single:
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return "FLOAT";
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default:
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throw new ArgumentOutOfRangeException(type.ToString());
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}
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}
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public IsolationLevel GetSupportedIsolationLevel(IsolationLevel il)
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{
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return il;
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}
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public string UseIndex(string index)
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{
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return string.Format("use index ({0})", index);
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}
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}
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} |