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473 lines
24 KiB
C#
473 lines
24 KiB
C#
using FreeSql.DatabaseModel;
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using FreeSql.Internal;
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using FreeSql.Internal.Model;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using ClickHouse.Client.ADO;
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namespace FreeSql.ClickHouse
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{
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class ClickHouseDbFirst : IDbFirst
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{
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IFreeSql _orm;
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protected CommonUtils _commonUtils;
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protected CommonExpression _commonExpression;
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public ClickHouseDbFirst(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression)
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{
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_orm = orm;
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_commonUtils = commonUtils;
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_commonExpression = commonExpression;
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}
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public int GetDbType(DbColumnInfo column) => (int)GetClickHouseDbType(column);
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DbType GetClickHouseDbType(DbColumnInfo column)
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{
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if (column.DbTypeText == "Nullable")
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{
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column.DbTypeText = column.DbTypeTextFull;
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//(?<=\()(\S +)(?=\))
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}
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switch (column.DbTypeText?.ToLower())
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{
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case "bit":
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case "tinyint":
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case "bool":
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case "sbyte":
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case "int8":
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case "nullable(int8)": return DbType.SByte;
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case "byte":
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case "uint8":
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case "nullable(uint8)": return DbType.Byte;
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case "smallint":
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case "int16":
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case "nullable(int16)": return DbType.Int16;
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case "uint16":
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case "nullable(uint16)": return DbType.UInt16;
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case "int32":
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case "int":
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case "nullable(int32)": return DbType.Int32;
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case "uint":
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case "uint32":
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case "nullable(uint32)": return DbType.UInt32;
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case "bigint":
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case "int64":
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case "long":
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case "nullable(int64)": return DbType.Int64;
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case "uint64":
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case "ulong":
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case "nullable(uint64)": return DbType.UInt64;
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case "real":
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case "Float64":
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case "double":
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case "nullable(float64)": return DbType.Double;
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case "Float32":
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case "float":
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case "nullable(float32)": return DbType.Single;
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case "decimal":
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case "decimal128":
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case "nullable(decimal128)": return DbType.Decimal;
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case "date":
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case "nullable(date)": return DbType.Date;
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case "datetime":
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case "nullable(datetime)": return DbType.DateTime;
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case "datetime64":
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case "nullable(datetime64)": return DbType.DateTime;
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case "tinytext":
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case "text":
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case "mediumtext":
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case "longtext":
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case "char":
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case "string":
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case "nullable(string)":
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case "varchar": return DbType.String;
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default:
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{
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if (column.DbTypeText?.ToLower().Contains("datetime") == true)
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return DbType.DateTime;
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return DbType.String;
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}
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}
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}
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static readonly Dictionary<int, DbToCs> _dicDbToCs = new Dictionary<int, DbToCs>() {
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{ (int)DbType.SByte, new DbToCs("(sbyte?)", "sbyte.Parse({0})", "{0}.ToString()", "sbyte?", typeof(sbyte), typeof(sbyte?), "{0}.Value", "GetByte") },
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{ (int)DbType.Int16, new DbToCs("(short?)", "short.Parse({0})", "{0}.ToString()", "short?", typeof(short), typeof(short?), "{0}.Value", "GetInt16") },
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{ (int)DbType.Int32, new DbToCs("(int?)", "int.Parse({0})", "{0}.ToString()", "int?", typeof(int), typeof(int?), "{0}.Value", "GetInt32") },
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{ (int)DbType.Int64, new DbToCs("(long?)", "long.Parse({0})", "{0}.ToString()", "long?", typeof(long), typeof(long?), "{0}.Value", "GetInt64") },
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{ (int)DbType.Byte, new DbToCs("(byte?)", "byte.Parse({0})", "{0}.ToString()", "byte?", typeof(byte), typeof(byte?), "{0}.Value", "GetByte") },
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{ (int)DbType.UInt16, new DbToCs("(ushort?)", "ushort.Parse({0})", "{0}.ToString()", "ushort?", typeof(ushort), typeof(ushort?), "{0}.Value", "GetInt16") },
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{ (int)DbType.UInt32, new DbToCs("(uint?)", "uint.Parse({0})", "{0}.ToString()", "uint?", typeof(uint), typeof(uint?), "{0}.Value", "GetInt32") },
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{ (int)DbType.UInt64, new DbToCs("(ulong?)", "ulong.Parse({0})", "{0}.ToString()", "ulong?", typeof(ulong), typeof(ulong?), "{0}.Value", "GetInt64") },
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{ (int)DbType.Double, new DbToCs("(double?)", "double.Parse({0})", "{0}.ToString()", "double?", typeof(double), typeof(double?), "{0}.Value", "GetDouble") },
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{ (int)DbType.Single, new DbToCs("(float?)", "float.Parse({0})", "{0}.ToString()", "float?", typeof(float), typeof(float?), "{0}.Value", "GetFloat") },
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{ (int)DbType.Decimal, new DbToCs("(decimal?)", "decimal.Parse({0})", "{0}.ToString()", "decimal?", typeof(decimal), typeof(decimal?), "{0}.Value", "GetDecimal") },
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{ (int)DbType.Date, new DbToCs("(DateTime?)", "new DateTime(long.Parse({0}))", "{0}.Ticks.ToString()", "DateTime?", typeof(DateTime), typeof(DateTime?), "{0}.Value", "GetDateTime") },
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{ (int)DbType.Date, new DbToCs("(DateTime?)", "new DateTime(long.Parse({0}))", "{0}.Ticks.ToString()", "DateTime?", typeof(DateTime), typeof(DateTime?), "{0}.Value", "GetDateTime") },
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{ (int)DbType.DateTime, new DbToCs("(DateTime?)", "new DateTime(long.Parse({0}))", "{0}.Ticks.ToString()", "DateTime?", typeof(DateTime), typeof(DateTime?), "{0}.Value", "GetDateTime") },
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{ (int)DbType.DateTime2, new DbToCs("(DateTime?)", "new DateTime(long.Parse({0}))", "{0}.Ticks.ToString()", "DateTime?", typeof(DateTime), typeof(DateTime?), "{0}.Value", "GetDateTime") },
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{ (int)DbType.Guid, new DbToCs("(Guid?)", "Guid.Parse({0})", "{0}.ToString()", "Guid?", typeof(Guid), typeof(Guid?), "{0}", "GetString") },
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{ (int)DbType.String, new DbToCs("", "{0}.Replace(StringifySplit, \"|\")", "{0}.Replace(\"|\", StringifySplit)", "string", typeof(string), typeof(string), "{0}", "GetString") },
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};
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public string GetCsConvert(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? (column.IsNullable ? trydc.csConvert : trydc.csConvert.Replace("?", "")) : null;
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public string GetCsParse(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? trydc.csParse : null;
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public string GetCsStringify(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? trydc.csStringify : null;
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public string GetCsType(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? (column.IsNullable ? trydc.csType : trydc.csType.Replace("?", "")) : null;
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public Type GetCsTypeInfo(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? trydc.csTypeInfo : null;
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public string GetCsTypeValue(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? trydc.csTypeValue : null;
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public string GetDataReaderMethod(DbColumnInfo column) => _dicDbToCs.TryGetValue(column.DbType, out var trydc) ? trydc.dataReaderMethod : null;
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public List<string> GetDatabases()
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{
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var sql = @" select name from system.databases where name not in ('system', 'default')";
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var ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
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return ds.Select(a => a.FirstOrDefault()?.ToString()).ToList();
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}
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public bool ExistsTable(string name, bool ignoreCase)
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{
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if (string.IsNullOrEmpty(name)) return false;
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var tbname = _commonUtils.SplitTableName(name);
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if (tbname?.Length == 1)
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{
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var database = "";
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using (var conn = _orm.Ado.MasterPool.Get(TimeSpan.FromSeconds(5)))
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{
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database = conn.Value.Database;
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}
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tbname = new[] { database, tbname[0] };
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}
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if (ignoreCase) tbname = tbname.Select(a => a.ToLower()).ToArray();
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var sql = $" SELECT 1 FROM information_schema.tables WHERE {(ignoreCase ? "lower(table_schema)" : "table_schema")} = {_commonUtils.FormatSql("{0}", tbname[0])} and {(ignoreCase ? "lower(table_name)" : "table_name")} = {_commonUtils.FormatSql("{0}", tbname[1])}";
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return string.Concat(_orm.Ado.ExecuteScalar(CommandType.Text, sql)) == "1";
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}
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public DbTableInfo GetTableByName(string name, bool ignoreCase = true) => GetTables(null, name, ignoreCase)?.FirstOrDefault();
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public List<DbTableInfo> GetTablesByDatabase(params string[] database) => GetTables(database, null, false);
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public List<DbTableInfo> GetTables(string[] database, string tablename, bool ignoreCase)
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{
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var loc1 = new List<DbTableInfo>();
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var loc2 = new Dictionary<string, DbTableInfo>(StringComparer.CurrentCultureIgnoreCase);
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var loc3 = new Dictionary<string, Dictionary<string, DbColumnInfo>>(StringComparer.CurrentCultureIgnoreCase);
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string[] tbname = null;
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if (string.IsNullOrEmpty(tablename) == false)
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{
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tbname = _commonUtils.SplitTableName(tablename);
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if (tbname?.Length == 1)
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{
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using (var conn = _orm.Ado.MasterPool.Get(TimeSpan.FromSeconds(5)))
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{
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if (string.IsNullOrEmpty(conn.Value.Database)) return loc1;
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tbname = new[] { conn.Value.Database, tbname[0] };
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}
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}
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if (ignoreCase) tbname = tbname.Select(a => a.ToLower()).ToArray();
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database = new[] { tbname[0] };
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}
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else if (database == null || database.Any() == false)
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{
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using (var conn = _orm.Ado.MasterPool.Get())
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{
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if (string.IsNullOrEmpty(conn.Value.Database)) return loc1;
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database = new[] { conn.Value.Database };
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}
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}
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var databaseIn = string.Join(",", database.Select(a => _commonUtils.FormatSql("{0}", a)));
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var sql = $@"
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select
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concat(a.table_schema, '.', a.table_name) 'id',
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a.table_schema 'schema',
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a.table_name 'table',
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a.table_comment,
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a.table_type 'type'
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from information_schema.tables a
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where {(ignoreCase ? "lower(a.table_schema)" : "a.table_schema")} in ({databaseIn}){(tbname == null ? "" : $" and {(ignoreCase ? "lower(a.table_name)" : "a.table_name")}={_commonUtils.FormatSql("{0}", tbname[1])}")}";
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var ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
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if (ds == null) return loc1;
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var loc6 = new List<string[]>();
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var loc66 = new List<string[]>();
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var loc6_1000 = new List<string>();
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var loc66_1000 = new List<string>();
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foreach (var row in ds)
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{
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var table_id = string.Concat(row[0]);
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var schema = string.Concat(row[1]);
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var table = string.Concat(row[2]);
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var comment = string.Concat(row[3]);
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var type = string.Concat(row[4]) == "VIEW" ? DbTableType.VIEW : DbTableType.TABLE;
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if (database.Length == 1)
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{
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table_id = table_id.Substring(table_id.IndexOf('.') + 1);
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schema = "";
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}
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loc2.Add(table_id, new DbTableInfo { Id = table_id, Schema = schema, Name = table, Comment = comment, Type = type });
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loc3.Add(table_id, new Dictionary<string, DbColumnInfo>(StringComparer.CurrentCultureIgnoreCase));
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switch (type)
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{
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case DbTableType.TABLE:
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case DbTableType.VIEW:
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loc6_1000.Add(table.Replace("'", "''"));
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if (loc6_1000.Count >= 500)
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{
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loc6.Add(loc6_1000.ToArray());
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loc6_1000.Clear();
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}
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break;
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case DbTableType.StoreProcedure:
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loc66_1000.Add(table.Replace("'", "''"));
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if (loc66_1000.Count >= 500)
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{
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loc66.Add(loc66_1000.ToArray());
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loc66_1000.Clear();
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}
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break;
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}
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}
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if (loc6_1000.Count > 0) loc6.Add(loc6_1000.ToArray());
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if (loc66_1000.Count > 0) loc66.Add(loc66_1000.ToArray());
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if (loc6.Count == 0) return loc1;
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var loc8 = new StringBuilder().Append("(");
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for (var loc8idx = 0; loc8idx < loc6.Count; loc8idx++)
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{
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if (loc8idx > 0) loc8.Append(" OR ");
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loc8.Append("a.table_name in (");
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for (var loc8idx2 = 0; loc8idx2 < loc6[loc8idx].Length; loc8idx2++)
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{
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if (loc8idx2 > 0) loc8.Append(",");
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loc8.Append($"'{loc6[loc8idx][loc8idx2]}'");
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}
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loc8.Append(")");
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}
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loc8.Append(")");
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sql = $@"
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select
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concat(a.table_schema, '.', a.table_name),
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a.column_name,
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a.data_type,
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ifnull(a.character_maximum_length, 0) 'len',
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a.column_type,
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case when a.is_nullable = 'YES' then 1 else 0 end 'is_nullable',
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case when locate('auto_increment', a.extra) > 0 then 1 else 0 end 'is_identity',
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a.column_comment 'comment',
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a.column_default 'default_value'
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from information_schema.columns a
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where {(ignoreCase ? "lower(a.table_schema)" : "a.table_schema")} in ({databaseIn}) and {loc8}
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";
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ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
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if (ds == null) return loc1;
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var position = 0;
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foreach (var row in ds)
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{
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string table_id = string.Concat(row[0]);
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string column = string.Concat(row[1]);
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string type = string.Concat(row[2]);
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//long max_length = long.Parse(string.Concat(row[3]));
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string sqlType = string.Concat(row[4]);
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var m_len = Regex.Match(sqlType, @"\w+\((\d+)");
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int max_length = m_len.Success ? int.Parse(m_len.Groups[1].Value) : -1;
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bool is_nullable = string.Concat(row[5]) == "1";
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bool is_identity = string.Concat(row[6]) == "1";
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string comment = string.Concat(row[7]);
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string defaultValue = string.Concat(row[8]);
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if (max_length == 0) max_length = -1;
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if (database.Length == 1)
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{
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table_id = table_id.Substring(table_id.IndexOf('.') + 1);
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}
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loc3[table_id].Add(column, new DbColumnInfo
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{
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Name = column,
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MaxLength = max_length,
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IsIdentity = is_identity,
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IsNullable = is_nullable,
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IsPrimary = false,
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DbTypeText = type,
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DbTypeTextFull = sqlType,
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Table = loc2[table_id],
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Comment = comment,
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DefaultValue = defaultValue,
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Position = ++position
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});
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loc3[table_id][column].DbType = this.GetDbType(loc3[table_id][column]);
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loc3[table_id][column].CsType = this.GetCsTypeInfo(loc3[table_id][column]);
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}
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sql = $@"
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select
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concat(a.table_schema, '.', a.table_name) 'table_id',
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a.column_name,
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a.index_name 'index_id',
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case when a.non_unique = 0 then 1 else 0 end 'IsUnique',
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case when a.index_name = 'PRIMARY' then 1 else 0 end 'IsPrimaryKey',
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0 'IsClustered',
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0 'IsDesc'
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from information_schema.statistics a
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where {(ignoreCase ? "lower(a.table_schema)" : "a.table_schema")} in ({databaseIn}) and {loc8}
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";
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ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
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if (ds == null) return loc1;
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var indexColumns = new Dictionary<string, Dictionary<string, DbIndexInfo>>(StringComparer.CurrentCultureIgnoreCase);
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var uniqueColumns = new Dictionary<string, Dictionary<string, DbIndexInfo>>(StringComparer.CurrentCultureIgnoreCase);
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foreach (var row in ds)
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{
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string table_id = string.Concat(row[0]);
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string column = string.Concat(row[1]);
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string index_id = string.Concat(row[2]);
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bool is_unique = string.Concat(row[3]) == "1";
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bool is_primary_key = string.Concat(row[4]) == "1";
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bool is_clustered = string.Concat(row[5]) == "1";
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bool is_desc = string.Concat(row[6]) == "1";
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if (database.Length == 1)
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table_id = table_id.Substring(table_id.IndexOf('.') + 1);
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if (loc3.ContainsKey(table_id) == false || loc3[table_id].ContainsKey(column) == false) continue;
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var loc9 = loc3[table_id][column];
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if (loc9.IsPrimary == false && is_primary_key) loc9.IsPrimary = is_primary_key;
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Dictionary<string, DbIndexInfo> loc10 = null;
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DbIndexInfo loc11 = null;
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if (!indexColumns.TryGetValue(table_id, out loc10))
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indexColumns.Add(table_id, loc10 = new Dictionary<string, DbIndexInfo>(StringComparer.CurrentCultureIgnoreCase));
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if (!loc10.TryGetValue(index_id, out loc11))
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loc10.Add(index_id, loc11 = new DbIndexInfo());
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loc11.Columns.Add(new DbIndexColumnInfo { Column = loc9, IsDesc = is_desc });
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if (is_unique && !is_primary_key)
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{
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if (!uniqueColumns.TryGetValue(table_id, out loc10))
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uniqueColumns.Add(table_id, loc10 = new Dictionary<string, DbIndexInfo>(StringComparer.CurrentCultureIgnoreCase));
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if (!loc10.TryGetValue(index_id, out loc11))
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loc10.Add(index_id, loc11 = new DbIndexInfo());
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loc11.Columns.Add(new DbIndexColumnInfo { Column = loc9, IsDesc = is_desc });
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}
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}
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foreach (string table_id in indexColumns.Keys)
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{
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foreach (var column in indexColumns[table_id])
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loc2[table_id].IndexesDict.Add(column.Key, column.Value);
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}
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foreach (string table_id in uniqueColumns.Keys)
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{
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foreach (var column in uniqueColumns[table_id])
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{
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column.Value.Columns.Sort((c1, c2) => c1.Column.Name.CompareTo(c2.Column.Name));
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loc2[table_id].UniquesDict.Add(column.Key, column.Value);
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}
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}
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if (tbname == null)
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{
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sql = $@"
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select
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concat(a.constraint_schema, '.', a.table_name) 'table_id',
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a.column_name,
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a.constraint_name 'FKId',
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concat(a.referenced_table_schema, '.', a.referenced_table_name) 'ref_table_id',
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1 'IsForeignKey',
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a.referenced_column_name 'ref_column'
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from information_schema.key_column_usage a
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where {(ignoreCase ? "lower(a.constraint_schema)" : "a.constraint_schema")} in ({databaseIn}) and {loc8} and not isnull(position_in_unique_constraint)
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";
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ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
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if (ds == null) return loc1;
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var fkColumns = new Dictionary<string, Dictionary<string, DbForeignInfo>>(StringComparer.CurrentCultureIgnoreCase);
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foreach (var row in ds)
|
|
{
|
|
string table_id = string.Concat(row[0]);
|
|
string column = string.Concat(row[1]);
|
|
string fk_id = string.Concat(row[2]);
|
|
string ref_table_id = string.Concat(row[3]);
|
|
bool is_foreign_key = string.Concat(row[4]) == "1";
|
|
string referenced_column = string.Concat(row[5]);
|
|
if (database.Length == 1)
|
|
{
|
|
table_id = table_id.Substring(table_id.IndexOf('.') + 1);
|
|
ref_table_id = ref_table_id.Substring(ref_table_id.IndexOf('.') + 1);
|
|
}
|
|
if (loc3.ContainsKey(table_id) == false || loc3[table_id].ContainsKey(column) == false) continue;
|
|
var loc9 = loc3[table_id][column];
|
|
if (loc2.ContainsKey(ref_table_id) == false) continue;
|
|
var loc10 = loc2[ref_table_id];
|
|
var loc11 = loc3[ref_table_id][referenced_column];
|
|
|
|
Dictionary<string, DbForeignInfo> loc12 = null;
|
|
DbForeignInfo loc13 = null;
|
|
if (!fkColumns.TryGetValue(table_id, out loc12))
|
|
fkColumns.Add(table_id, loc12 = new Dictionary<string, DbForeignInfo>(StringComparer.CurrentCultureIgnoreCase));
|
|
if (!loc12.TryGetValue(fk_id, out loc13))
|
|
loc12.Add(fk_id, loc13 = new DbForeignInfo { Table = loc2[table_id], ReferencedTable = loc10 });
|
|
loc13.Columns.Add(loc9);
|
|
loc13.ReferencedColumns.Add(loc11);
|
|
}
|
|
foreach (var table_id in fkColumns.Keys)
|
|
foreach (var fk in fkColumns[table_id])
|
|
loc2[table_id].ForeignsDict.Add(fk.Key, fk.Value);
|
|
}
|
|
|
|
foreach (var table_id in loc3.Keys)
|
|
{
|
|
foreach (var loc5 in loc3[table_id].Values)
|
|
{
|
|
loc2[table_id].Columns.Add(loc5);
|
|
if (loc5.IsIdentity) loc2[table_id].Identitys.Add(loc5);
|
|
if (loc5.IsPrimary) loc2[table_id].Primarys.Add(loc5);
|
|
}
|
|
}
|
|
foreach (var loc4 in loc2.Values)
|
|
{
|
|
//if (loc4.Primarys.Count == 0 && loc4.UniquesDict.Count > 0)
|
|
//{
|
|
// foreach (var loc5 in loc4.UniquesDict.First().Value.Columns)
|
|
// {
|
|
// loc5.Column.IsPrimary = true;
|
|
// loc4.Primarys.Add(loc5.Column);
|
|
// }
|
|
//}
|
|
loc4.Primarys.Sort((c1, c2) => c1.Name.CompareTo(c2.Name));
|
|
loc4.Columns.Sort((c1, c2) =>
|
|
{
|
|
int compare = c2.IsPrimary.CompareTo(c1.IsPrimary);
|
|
if (compare == 0)
|
|
{
|
|
bool b1 = loc4.ForeignsDict.Values.Where(fk => fk.Columns.Where(c3 => c3.Name == c1.Name).Any()).Any();
|
|
bool b2 = loc4.ForeignsDict.Values.Where(fk => fk.Columns.Where(c3 => c3.Name == c2.Name).Any()).Any();
|
|
compare = b2.CompareTo(b1);
|
|
}
|
|
if (compare == 0) compare = c1.Name.CompareTo(c2.Name);
|
|
return compare;
|
|
});
|
|
loc1.Add(loc4);
|
|
}
|
|
loc1.Sort((t1, t2) =>
|
|
{
|
|
var ret = t1.Schema.CompareTo(t2.Schema);
|
|
if (ret == 0) ret = t1.Name.CompareTo(t2.Name);
|
|
return ret;
|
|
});
|
|
|
|
loc2.Clear();
|
|
loc3.Clear();
|
|
return loc1;
|
|
}
|
|
|
|
public List<DbEnumInfo> GetEnumsByDatabase(params string[] database)
|
|
{
|
|
return new List<DbEnumInfo>();
|
|
}
|
|
}
|
|
} |