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dda7c8bc9c
- 增加 ICodeFirst.SyncStructure(Type entityType, string tableName) 指定表名来迁移实体； ```csharp fsql.CodeFirst.SyncStructure(typeof(Log), "Log_1"); //迁移到 Log_1 表 fsql.CodeFirst.SyncStructure(typeof(Log), "Log_2"); //迁移到 Log_2 表 ```
421 lines
33 KiB
C#
421 lines
33 KiB
C#
using FreeSql.DataAnnotations;
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using FreeSql.DatabaseModel;
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using FreeSql.Internal;
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using FreeSql.Internal.Model;
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using Newtonsoft.Json.Linq;
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using Npgsql.LegacyPostgis;
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using NpgsqlTypes;
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using System;
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using System.Collections;
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using System.Collections.Concurrent;
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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.Net;
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using System.Net.NetworkInformation;
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using System.Text;
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using System.Text.RegularExpressions;
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namespace FreeSql.PostgreSQL
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{
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class PostgreSQLCodeFirst : Internal.CommonProvider.CodeFirstProvider
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{
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public PostgreSQLCodeFirst(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression) : base(orm, commonUtils, commonExpression) { }
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static object _dicCsToDbLock = new object();
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static Dictionary<string, (NpgsqlDbType type, string dbtype, string dbtypeFull, bool? isUnsigned, bool? isnullable, object defaultValue)> _dicCsToDb = new Dictionary<string, (NpgsqlDbType type, string dbtype, string dbtypeFull, bool? isUnsigned, bool? isnullable, object defaultValue)>() {
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{ typeof(sbyte).FullName, (NpgsqlDbType.Smallint, "int2","int2 NOT NULL", false, false, 0) },{ typeof(sbyte?).FullName, (NpgsqlDbType.Smallint, "int2", "int2", false, true, null) },
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{ typeof(short).FullName, (NpgsqlDbType.Smallint, "int2","int2 NOT NULL", false, false, 0) },{ typeof(short?).FullName, (NpgsqlDbType.Smallint, "int2", "int2", false, true, null) },
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{ typeof(int).FullName, (NpgsqlDbType.Integer, "int4","int4 NOT NULL", false, false, 0) },{ typeof(int?).FullName, (NpgsqlDbType.Integer, "int4", "int4", false, true, null) },
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{ typeof(long).FullName, (NpgsqlDbType.Bigint, "int8","int8 NOT NULL", false, false, 0) },{ typeof(long?).FullName, (NpgsqlDbType.Bigint, "int8", "int8", false, true, null) },
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{ typeof(byte).FullName, (NpgsqlDbType.Smallint, "int2","int2 NOT NULL", false, false, 0) },{ typeof(byte?).FullName, (NpgsqlDbType.Smallint, "int2", "int2", false, true, null) },
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{ typeof(ushort).FullName, (NpgsqlDbType.Integer, "int4","int4 NOT NULL", false, false, 0) },{ typeof(ushort?).FullName, (NpgsqlDbType.Integer, "int4", "int4", false, true, null) },
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{ typeof(uint).FullName, (NpgsqlDbType.Bigint, "int8","int8 NOT NULL", false, false, 0) },{ typeof(uint?).FullName, (NpgsqlDbType.Bigint, "int8", "int8", false, true, null) },
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{ typeof(ulong).FullName, (NpgsqlDbType.Numeric, "numeric","numeric(20,0) NOT NULL", false, false, 0) },{ typeof(ulong?).FullName, (NpgsqlDbType.Numeric, "numeric", "numeric(20,0)", false, true, null) },
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{ typeof(float).FullName, (NpgsqlDbType.Real, "float4","float4 NOT NULL", false, false, 0) },{ typeof(float?).FullName, (NpgsqlDbType.Real, "float4", "float4", false, true, null) },
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{ typeof(double).FullName, (NpgsqlDbType.Double, "float8","float8 NOT NULL", false, false, 0) },{ typeof(double?).FullName, (NpgsqlDbType.Double, "float8", "float8", false, true, null) },
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{ typeof(decimal).FullName, (NpgsqlDbType.Numeric, "numeric", "numeric(10,2) NOT NULL", false, false, 0) },{ typeof(decimal?).FullName, (NpgsqlDbType.Numeric, "numeric", "numeric(10,2)", false, true, null) },
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{ typeof(string).FullName, (NpgsqlDbType.Varchar, "varchar", "varchar(255)", false, null, "") },
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{ typeof(TimeSpan).FullName, (NpgsqlDbType.Time, "time","time NOT NULL", false, false, 0) },{ typeof(TimeSpan?).FullName, (NpgsqlDbType.Time, "time", "time",false, true, null) },
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{ typeof(DateTime).FullName, (NpgsqlDbType.Timestamp, "timestamp", "timestamp NOT NULL", false, false, new DateTime(1970,1,1)) },{ typeof(DateTime?).FullName, (NpgsqlDbType.Timestamp, "timestamp", "timestamp", false, true, null) },
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{ typeof(bool).FullName, (NpgsqlDbType.Boolean, "bool","bool NOT NULL", null, false, false) },{ typeof(bool?).FullName, (NpgsqlDbType.Boolean, "bool","bool", null, true, null) },
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{ typeof(Byte[]).FullName, (NpgsqlDbType.Bytea, "bytea", "bytea", false, null, new byte[0]) },
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{ typeof(BitArray).FullName, (NpgsqlDbType.Varbit, "varbit", "varbit(64)", false, null, new BitArray(new byte[64])) },
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{ typeof(NpgsqlPoint).FullName, (NpgsqlDbType.Point, "point", "point NOT NULL", false, false, new NpgsqlPoint(0, 0)) },{ typeof(NpgsqlPoint?).FullName, (NpgsqlDbType.Point, "point", "point", false, true, null) },
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{ typeof(NpgsqlLine).FullName, (NpgsqlDbType.Line, "line", "line NOT NULL", false, false, new NpgsqlLine(0, 0, 1)) },{ typeof(NpgsqlLine?).FullName, (NpgsqlDbType.Line, "line", "line", false, true, null) },
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{ typeof(NpgsqlLSeg).FullName, (NpgsqlDbType.LSeg, "lseg", "lseg NOT NULL", false, false, new NpgsqlLSeg(0, 0, 0, 0)) },{ typeof(NpgsqlLSeg?).FullName, (NpgsqlDbType.LSeg, "lseg", "lseg", false, true, null) },
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{ typeof(NpgsqlBox).FullName, (NpgsqlDbType.Box, "box", "box NOT NULL", false, false, new NpgsqlBox(0, 0, 0, 0)) },{ typeof(NpgsqlBox?).FullName, (NpgsqlDbType.Box, "box", "box", false, true, null) },
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{ typeof(NpgsqlPath).FullName, (NpgsqlDbType.Path, "path", "path NOT NULL", false, false, new NpgsqlPath(new NpgsqlPoint(0, 0))) },{ typeof(NpgsqlPath?).FullName, (NpgsqlDbType.Path, "path", "path", false, true, null) },
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{ typeof(NpgsqlPolygon).FullName, (NpgsqlDbType.Polygon, "polygon", "polygon NOT NULL", false, false, new NpgsqlPolygon(new NpgsqlPoint(0, 0), new NpgsqlPoint(0, 0))) },{ typeof(NpgsqlPolygon?).FullName, (NpgsqlDbType.Polygon, "polygon", "polygon", false, true, null) },
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{ typeof(NpgsqlCircle).FullName, (NpgsqlDbType.Circle, "circle", "circle NOT NULL", false, false, new NpgsqlCircle(0, 0, 0)) },{ typeof(NpgsqlCircle?).FullName, (NpgsqlDbType.Circle, "circle", "circle", false, true, null) },
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{ typeof((IPAddress Address, int Subnet)).FullName, (NpgsqlDbType.Cidr, "cidr", "cidr NOT NULL", false, false, (IPAddress.Any, 0)) },{ typeof((IPAddress Address, int Subnet)?).FullName, (NpgsqlDbType.Cidr, "cidr", "cidr", false, true, null) },
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{ typeof(IPAddress).FullName, (NpgsqlDbType.Inet, "inet", "inet", false, null, IPAddress.Any) },
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{ typeof(PhysicalAddress).FullName, (NpgsqlDbType.MacAddr, "macaddr", "macaddr", false, null, PhysicalAddress.None) },
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{ typeof(JToken).FullName, (NpgsqlDbType.Jsonb, "jsonb", "jsonb", false, null, JToken.Parse("{}")) },
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{ typeof(JObject).FullName, (NpgsqlDbType.Jsonb, "jsonb", "jsonb", false, null, JObject.Parse("{}")) },
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{ typeof(JArray).FullName, (NpgsqlDbType.Jsonb, "jsonb", "jsonb", false, null, JArray.Parse("[]")) },
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{ typeof(Guid).FullName, (NpgsqlDbType.Uuid, "uuid", "uuid NOT NULL", false, false, Guid.Empty) },{ typeof(Guid?).FullName, (NpgsqlDbType.Uuid, "uuid", "uuid", false, true, null) },
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{ typeof(NpgsqlRange<int>).FullName, (NpgsqlDbType.Range | NpgsqlDbType.Integer, "int4range", "int4range NOT NULL", false, false, NpgsqlRange<int>.Empty) },{ typeof(NpgsqlRange<int>?).FullName, (NpgsqlDbType.Range | NpgsqlDbType.Integer, "int4range", "int4range", false, true, null) },
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{ typeof(NpgsqlRange<long>).FullName, (NpgsqlDbType.Range | NpgsqlDbType.Bigint, "int8range", "int8range NOT NULL", false, false, NpgsqlRange<long>.Empty) },{ typeof(NpgsqlRange<long>?).FullName, (NpgsqlDbType.Range | NpgsqlDbType.Bigint, "int8range", "int8range", false, true, null) },
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{ typeof(NpgsqlRange<decimal>).FullName, (NpgsqlDbType.Range | NpgsqlDbType.Numeric, "numrange", "numrange NOT NULL", false, false, NpgsqlRange<decimal>.Empty) },{ typeof(NpgsqlRange<decimal>?).FullName, (NpgsqlDbType.Range | NpgsqlDbType.Numeric, "numrange", "numrange", false, true, null) },
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{ typeof(NpgsqlRange<DateTime>).FullName, (NpgsqlDbType.Range | NpgsqlDbType.Timestamp, "tsrange", "tsrange NOT NULL", false, false, NpgsqlRange<DateTime>.Empty) },{ typeof(NpgsqlRange<DateTime>?).FullName, (NpgsqlDbType.Range | NpgsqlDbType.Timestamp, "tsrange", "tsrange", false, true, null) },
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{ typeof(Dictionary<string, string>).FullName, (NpgsqlDbType.Hstore, "hstore", "hstore", false, null, new Dictionary<string, string>()) },
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{ typeof(PostgisPoint).FullName, (NpgsqlDbType.Geometry, "geometry", "geometry", false, null, new PostgisPoint(0, 0)) },
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{ typeof(PostgisLineString).FullName, (NpgsqlDbType.Geometry, "geometry", "geometry", false, null, new PostgisLineString(new []{new Coordinate2D(0, 0),new Coordinate2D(0, 0) })) },
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{ typeof(PostgisPolygon).FullName, (NpgsqlDbType.Geometry, "geometry", "geometry", false, null, new PostgisPolygon(new []{new []{new Coordinate2D(0, 0),new Coordinate2D(0, 0) }, new []{new Coordinate2D(0, 0),new Coordinate2D(0, 0) } })) },
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{ typeof(PostgisMultiPoint).FullName, (NpgsqlDbType.Geometry, "geometry", "geometry", false, null, new PostgisMultiPoint(new []{new Coordinate2D(0, 0),new Coordinate2D(0, 0) })) },
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{ typeof(PostgisMultiLineString).FullName, (NpgsqlDbType.Geometry, "geometry", "geometry", false, null, new PostgisMultiLineString(new[]{new PostgisLineString(new []{new Coordinate2D(0, 0),new Coordinate2D(0, 0) }),new PostgisLineString(new []{new Coordinate2D(0, 0),new Coordinate2D(0, 0) }) })) },
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{ typeof(PostgisMultiPolygon).FullName, (NpgsqlDbType.Geometry, "geometry", "geometry", false, null, new PostgisMultiPolygon(new[]{new PostgisPolygon(new []{new []{new Coordinate2D(0, 0),new Coordinate2D(0, 0) }, new []{new Coordinate2D(0, 0),new Coordinate2D(0, 0) } }),new PostgisPolygon(new []{new []{new Coordinate2D(0, 0),new Coordinate2D(0, 0) }, new []{new Coordinate2D(0, 0),new Coordinate2D(0, 0) } }) })) },
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{ typeof(PostgisGeometry).FullName, (NpgsqlDbType.Geometry, "geometry", "geometry", false, null, new PostgisPoint(0, 0)) },
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{ typeof(PostgisGeometryCollection).FullName, (NpgsqlDbType.Geometry, "geometry", "geometry", false, null, new PostgisGeometryCollection(new[]{new PostgisPoint(0, 0),new PostgisPoint(0, 0) })) },
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};
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public override (int type, string dbtype, string dbtypeFull, bool? isnullable, object defaultValue)? GetDbInfo(Type type)
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{
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var isarray = type.FullName != "System.Byte[]" && type.IsArray;
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var elementType = isarray ? type.GetElementType() : type;
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var info = GetDbInfoNoneArray(elementType);
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if (info == null) return null;
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if (isarray == false) return ((int)info.Value.type, info.Value.dbtype, info.Value.dbtypeFull, info.Value.isnullable, info.Value.defaultValue);
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var dbtypefull = Regex.Replace(info.Value.dbtypeFull, $@"{info.Value.dbtype}(\s*\([^\)]+\))?", "$0[]").Replace(" NOT NULL", "");
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return ((int)(info.Value.type | NpgsqlDbType.Array), $"{info.Value.dbtype}[]", dbtypefull, null, Array.CreateInstance(elementType, 0));
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}
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(NpgsqlDbType type, string dbtype, string dbtypeFull, bool? isnullable, object defaultValue)? GetDbInfoNoneArray(Type type)
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{
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if (_dicCsToDb.TryGetValue(type.FullName, out var trydc)) return new (NpgsqlDbType, string, string, bool?, object)?((trydc.type, trydc.dbtype, trydc.dbtypeFull, trydc.isnullable, trydc.defaultValue));
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if (type.IsArray) return null;
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var enumType = type.IsEnum ? type : null;
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if (enumType == null && type.IsNullableType() && type.GenericTypeArguments.Length == 1 && type.GenericTypeArguments.First().IsEnum) enumType = type.GenericTypeArguments.First();
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if (enumType != null)
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{
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var newItem = enumType.GetCustomAttributes(typeof(FlagsAttribute), false).Any() ?
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(NpgsqlDbType.Bigint, "int8", $"int8{(type.IsEnum ? " NOT NULL" : "")}", false, type.IsEnum ? false : true, Enum.GetValues(enumType).GetValue(0)) :
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(NpgsqlDbType.Integer, "int4", $"int4{(type.IsEnum ? " NOT NULL" : "")}", false, type.IsEnum ? false : true, Enum.GetValues(enumType).GetValue(0));
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if (_dicCsToDb.ContainsKey(type.FullName) == false)
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{
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lock (_dicCsToDbLock)
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{
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if (_dicCsToDb.ContainsKey(type.FullName) == false)
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_dicCsToDb.Add(type.FullName, newItem);
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}
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}
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return (newItem.Item1, newItem.Item2, newItem.Item3, newItem.Item5, newItem.Item6);
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}
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return null;
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}
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protected override string GetComparisonDDLStatements(params (Type entityType, string tableName)[] objects)
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{
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var sb = new StringBuilder();
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var seqcols = new List<(ColumnInfo, string[], bool)>(); //序列
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foreach (var obj in objects)
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{
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if (sb.Length > 0) sb.Append("\r\n");
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var tb = _commonUtils.GetTableByEntity(obj.entityType);
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if (tb == null) throw new Exception($"类型 {obj.entityType.FullName} 不可迁移");
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if (tb.Columns.Any() == false) throw new Exception($"类型 {obj.entityType.FullName} 不可迁移，可迁移属性0个");
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var tbname = tb.DbName.Split(new[] { '.' }, 2);
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if (tbname?.Length == 1) tbname = new[] { "public", tbname[0] };
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var tboldname = tb.DbOldName?.Split(new[] { '.' }, 2); //旧表名
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if (tboldname?.Length == 1) tboldname = new[] { "public", tboldname[0] };
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if (string.IsNullOrEmpty(obj.tableName) == false)
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{
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var tbtmpname = obj.tableName.Split(new[] { '.' }, 2);
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if (tbtmpname?.Length == 1) tbtmpname = new[] { "public", tbtmpname[0] };
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if (tbname[0] != tbtmpname[0] || tbname[1] != tbtmpname[1])
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{
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tbname = tbtmpname;
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tboldname = null;
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}
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}
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if (string.Compare(tbname[0], "public", true) != 0 && _orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(" select 1 from pg_namespace where nspname={0}", tbname[0])) == null) //创建模式
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sb.Append("CREATE SCHEMA IF NOT EXISTS ").Append(tbname[0]).Append(";\r\n");
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var sbalter = new StringBuilder();
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var istmpatler = false; //创建临时表，导入数据，删除旧表，修改
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if (_orm.Ado.ExecuteScalar(CommandType.Text, string.Format(" select 1 from pg_tables a inner join pg_namespace b on b.nspname = a.schemaname where b.nspname || '.' || a.tablename = '{0}.{1}'", tbname)) == null)
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{ //表不存在
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if (tboldname != null)
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{
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if (_orm.Ado.ExecuteScalar(CommandType.Text, string.Format(" select 1 from pg_tables a inner join pg_namespace b on b.nspname = a.schemaname where b.nspname || '.' || a.tablename = '{0}.{1}'", tboldname)) == null)
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//旧表不存在
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tboldname = null;
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}
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if (tboldname == null)
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{
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//创建表
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var createTableName = _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}");
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sb.Append("CREATE TABLE IF NOT EXISTS ").Append(createTableName).Append(" ( ");
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foreach (var tbcol in tb.ColumnsByPosition)
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{
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sb.Append(" \r\n ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" ").Append(tbcol.Attribute.DbType).Append(",");
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if (tbcol.Attribute.IsIdentity == true) seqcols.Add((tbcol, tbname, true));
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}
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if (tb.Primarys.Any())
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{
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sb.Append(" \r\n CONSTRAINT ").Append(tbname[0]).Append("_").Append(tbname[1]).Append("_pkey PRIMARY KEY (");
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foreach (var tbcol in tb.Primarys) sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
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sb.Remove(sb.Length - 2, 2).Append("),");
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}
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sb.Remove(sb.Length - 1, 1);
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sb.Append("\r\n) WITH (OIDS=FALSE);\r\n");
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//创建表的索引
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foreach (var uk in tb.Indexes)
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{
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sb.Append("CREATE ");
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if (uk.IsUnique) sb.Append("UNIQUE ");
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sb.Append("INDEX ").Append(_commonUtils.QuoteSqlName(uk.Name)).Append(" ON ").Append(createTableName).Append("(");
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foreach (var tbcol in uk.Columns)
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{
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sb.Append(_commonUtils.QuoteSqlName(tbcol.Column.Attribute.Name));
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if (tbcol.IsDesc) sb.Append(" DESC");
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sb.Append(", ");
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}
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sb.Remove(sb.Length - 2, 2).Append(");\r\n");
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}
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//备注
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foreach (var tbcol in tb.ColumnsByPosition)
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{
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if (string.IsNullOrEmpty(tbcol.Comment) == false)
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sb.Append("COMMENT ON COLUMN ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}.{tbcol.Attribute.Name}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tbcol.Comment)).Append(";\r\n");
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}
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continue;
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}
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//如果新表，旧表在一个数据库和模式下，直接修改表名
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if (string.Compare(tbname[0], tboldname[0], true) == 0)
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sbalter.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tboldname[0]}.{tboldname[1]}")).Append(" RENAME TO ").Append(_commonUtils.QuoteSqlName($"{tbname[1]}")).Append(";\r\n");
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else
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{
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//如果新表，旧表不在一起，创建新表，导入数据，删除旧表
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istmpatler = true;
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}
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}
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else
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tboldname = null; //如果新表已经存在，不走改表名逻辑
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//对比字段，只可以修改类型、增加字段、有限的修改字段名；保证安全不删除字段
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var sql = _commonUtils.FormatSql(@"
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select
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a.attname,
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t.typname,
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case when a.atttypmod > 0 and a.atttypmod < 32767 then a.atttypmod - 4 else a.attlen end len,
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case when t.typelem > 0 and t.typinput::varchar = 'array_in' then t2.typname else t.typname end,
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case when a.attnotnull then '0' else '1' end as is_nullable,
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coalesce((select 1 from pg_sequences where sequencename = {0} || '_' || {1} || '_' || a.attname || '_sequence_name' limit 1),0) is_identity,
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--e.adsrc,
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a.attndims,
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d.description as comment
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from pg_class c
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inner join pg_attribute a on a.attnum > 0 and a.attrelid = c.oid
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inner join pg_type t on t.oid = a.atttypid
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left join pg_type t2 on t2.oid = t.typelem
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left join pg_description d on d.objoid = a.attrelid and d.objsubid = a.attnum
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left join pg_attrdef e on e.adrelid = a.attrelid and e.adnum = a.attnum
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inner join pg_namespace ns on ns.oid = c.relnamespace
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inner join pg_namespace ns2 on ns2.oid = t.typnamespace
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where ns.nspname = {0} and c.relname = {1}", tboldname ?? tbname);
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var ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
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var tbstruct = ds.ToDictionary(a => string.Concat(a[0]), a =>
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{
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var attndims = int.Parse(string.Concat(a[6]));
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var type = string.Concat(a[1]);
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var sqlType = string.Concat(a[3]);
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var max_length = long.Parse(string.Concat(a[2]));
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switch (sqlType.ToLower())
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{
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case "bool": case "name": case "bit": case "varbit": case "bpchar": case "varchar": case "bytea": case "text": case "uuid": break;
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default: max_length *= 8; break;
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}
|
||
if (type.StartsWith("_"))
|
||
{
|
||
type = type.Substring(1);
|
||
if (attndims == 0) attndims++;
|
||
}
|
||
if (sqlType.StartsWith("_")) sqlType = sqlType.Substring(1);
|
||
return new
|
||
{
|
||
column = string.Concat(a[0]),
|
||
sqlType = string.Concat(sqlType),
|
||
max_length = long.Parse(string.Concat(a[2])),
|
||
is_nullable = string.Concat(a[4]) == "1",
|
||
is_identity = string.Concat(a[5]) == "1", //string.Concat(a[5]).StartsWith(@"nextval('") && string.Concat(a[5]).EndsWith(@"'::regclass)"),
|
||
attndims,
|
||
comment = string.Concat(a[7])
|
||
};
|
||
}, StringComparer.CurrentCultureIgnoreCase);
|
||
|
||
if (istmpatler == false)
|
||
{
|
||
foreach (var tbcol in tb.ColumnsByPosition)
|
||
{
|
||
if (tbstruct.TryGetValue(tbcol.Attribute.Name, out var tbstructcol) ||
|
||
string.IsNullOrEmpty(tbcol.Attribute.OldName) == false && tbstruct.TryGetValue(tbcol.Attribute.OldName, out tbstructcol))
|
||
{
|
||
var isCommentChanged = tbstructcol.comment != (tbcol.Comment ?? "");
|
||
if (tbcol.Attribute.DbType.StartsWith(tbstructcol.sqlType, StringComparison.CurrentCultureIgnoreCase) == false ||
|
||
tbcol.Attribute.DbType.Contains("[]") != (tbstructcol.attndims > 0))
|
||
sbalter.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" ALTER COLUMN ").Append(_commonUtils.QuoteSqlName(tbstructcol.column)).Append(" TYPE ").Append(tbcol.Attribute.DbType.Split(' ').First()).Append(";\r\n");
|
||
if (tbcol.Attribute.IsNullable != tbstructcol.is_nullable)
|
||
{
|
||
if (tbcol.Attribute.IsNullable != true || tbcol.Attribute.IsNullable == true && tbcol.Attribute.IsPrimary == false)
|
||
sbalter.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" ALTER COLUMN ").Append(_commonUtils.QuoteSqlName(tbstructcol.column)).Append(" ").Append(tbcol.Attribute.IsNullable == true ? "DROP" : "SET").Append(" NOT NULL;\r\n");
|
||
}
|
||
if (tbcol.Attribute.IsIdentity != tbstructcol.is_identity)
|
||
seqcols.Add((tbcol, tbname, tbcol.Attribute.IsIdentity == true));
|
||
if (string.Compare(tbstructcol.column, tbcol.Attribute.OldName, true) == 0)
|
||
//修改列名
|
||
sbalter.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" RENAME COLUMN ").Append(_commonUtils.QuoteSqlName(tbstructcol.column)).Append(" TO ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(";\r\n");
|
||
if (isCommentChanged)
|
||
sbalter.Append("COMMENT ON COLUMN ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}.{tbcol.Attribute.Name}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tbcol.Comment)).Append(";\r\n");
|
||
continue;
|
||
}
|
||
//添加列
|
||
sbalter.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" ADD COLUMN ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" ").Append(tbcol.Attribute.DbType.Split(' ').First()).Append(";\r\n");
|
||
sbalter.Append("UPDATE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" SET ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" = ").Append(_commonUtils.FormatSql("{0};\r\n", tbcol.Attribute.DbDefautValue));
|
||
if (tbcol.Attribute.IsNullable == false) sbalter.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" ALTER COLUMN ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" SET NOT NULL;\r\n");
|
||
if (tbcol.Attribute.IsIdentity == true) seqcols.Add((tbcol, tbname, tbcol.Attribute.IsIdentity == true));
|
||
if (string.IsNullOrEmpty(tbcol.Comment) == false) sbalter.Append("COMMENT ON COLUMN ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}.{tbcol.Attribute.Name}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tbcol.Comment)).Append(";\r\n");
|
||
}
|
||
var dsuksql = _commonUtils.FormatSql(@"
|
||
select
|
||
c.attname,
|
||
b.relname,
|
||
case when pg_index_column_has_property(b.oid, c.attnum, 'desc') = 't' then 1 else 0 end IsDesc,
|
||
case when indisunique = 't' then 1 else 0 end IsUnique
|
||
from pg_index a
|
||
inner join pg_class b on b.oid = a.indexrelid
|
||
inner join pg_attribute c on c.attnum > 0 and c.attrelid = b.oid
|
||
inner join pg_namespace ns on ns.oid = b.relnamespace
|
||
inner join pg_class d on d.oid = a.indrelid
|
||
where ns.nspname in ({0}) and d.relname in ({1}) and a.indisprimary = 'f'", tboldname ?? tbname);
|
||
var dsuk = _orm.Ado.ExecuteArray(CommandType.Text, dsuksql).Select(a => new[] { string.Concat(a[0]), string.Concat(a[1]), string.Concat(a[2]), string.Concat(a[3]) });
|
||
foreach (var uk in tb.Indexes)
|
||
{
|
||
if (string.IsNullOrEmpty(uk.Name) || uk.Columns.Any() == false) continue;
|
||
var dsukfind1 = dsuk.Where(a => string.Compare(a[1], uk.Name, true) == 0).ToArray();
|
||
if (dsukfind1.Any() == false || dsukfind1.Length != uk.Columns.Length || dsukfind1.Where(a => uk.Columns.Where(b => (a[3] == "1") == uk.IsUnique && string.Compare(b.Column.Attribute.Name, a[0], true) == 0 && (a[2] == "1") == b.IsDesc).Any()).Count() != uk.Columns.Length)
|
||
{
|
||
if (dsukfind1.Any()) sbalter.Append("DROP INDEX ").Append(_commonUtils.QuoteSqlName(uk.Name)).Append(";\r\n");
|
||
sbalter.Append("CREATE ");
|
||
if (uk.IsUnique) sbalter.Append("UNIQUE ");
|
||
sbalter.Append("INDEX ").Append(_commonUtils.QuoteSqlName(uk.Name)).Append(" ON ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append("(");
|
||
foreach (var tbcol in uk.Columns)
|
||
{
|
||
sbalter.Append(_commonUtils.QuoteSqlName(tbcol.Column.Attribute.Name));
|
||
if (tbcol.IsDesc) sbalter.Append(" DESC");
|
||
sbalter.Append(", ");
|
||
}
|
||
sbalter.Remove(sbalter.Length - 2, 2).Append(");\r\n");
|
||
}
|
||
}
|
||
}
|
||
if (istmpatler == false)
|
||
{
|
||
sb.Append(sbalter);
|
||
continue;
|
||
}
|
||
var oldpk = _orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(@"select pg_constraint.conname as pk_name from pg_constraint
|
||
inner join pg_class on pg_constraint.conrelid = pg_class.oid
|
||
inner join pg_namespace on pg_namespace.oid = pg_class.relnamespace
|
||
where pg_namespace.nspname={0} and pg_class.relname={1} and pg_constraint.contype='p'
|
||
", tbname))?.ToString();
|
||
if (string.IsNullOrEmpty(oldpk) == false)
|
||
sb.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" DROP CONSTRAINT ").Append(oldpk).Append(";\r\n");
|
||
|
||
//创建临时表，数据导进临时表，然后删除原表，将临时表改名为原表名
|
||
var tablename = tboldname == null ? _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}") : _commonUtils.QuoteSqlName($"{tboldname[0]}.{tboldname[1]}");
|
||
var tmptablename = _commonUtils.QuoteSqlName($"{tbname[0]}.FreeSqlTmp_{tbname[1]}");
|
||
//创建临时表
|
||
sb.Append("CREATE TABLE IF NOT EXISTS ").Append(tmptablename).Append(" ( ");
|
||
foreach (var tbcol in tb.ColumnsByPosition)
|
||
{
|
||
sb.Append(" \r\n ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" ").Append(tbcol.Attribute.DbType).Append(",");
|
||
if (tbcol.Attribute.IsIdentity == true) seqcols.Add((tbcol, tbname, true));
|
||
}
|
||
if (tb.Primarys.Any())
|
||
{
|
||
sb.Append(" \r\n CONSTRAINT ").Append(tbname[0]).Append("_").Append(tbname[1]).Append("_pkey PRIMARY KEY (");
|
||
foreach (var tbcol in tb.Primarys) sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
|
||
sb.Remove(sb.Length - 2, 2).Append("),");
|
||
}
|
||
sb.Remove(sb.Length - 1, 1);
|
||
sb.Append("\r\n) WITH (OIDS=FALSE);\r\n");
|
||
//备注
|
||
foreach (var tbcol in tb.ColumnsByPosition)
|
||
{
|
||
if (string.IsNullOrEmpty(tbcol.Comment) == false)
|
||
sb.Append("COMMENT ON COLUMN ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.FreeSqlTmp_{tbname[1]}.{tbcol.Attribute.Name}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tbcol.Comment)).Append(";\r\n");
|
||
}
|
||
sb.Append("INSERT INTO ").Append(tmptablename).Append(" (");
|
||
foreach (var tbcol in tb.ColumnsByPosition)
|
||
sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
|
||
sb.Remove(sb.Length - 2, 2).Append(")\r\nSELECT ");
|
||
foreach (var tbcol in tb.ColumnsByPosition)
|
||
{
|
||
var insertvalue = "NULL";
|
||
if (tbstruct.TryGetValue(tbcol.Attribute.Name, out var tbstructcol) ||
|
||
string.IsNullOrEmpty(tbcol.Attribute.OldName) == false && tbstruct.TryGetValue(tbcol.Attribute.OldName, out tbstructcol))
|
||
{
|
||
insertvalue = _commonUtils.QuoteSqlName(tbstructcol.column);
|
||
if (tbcol.Attribute.DbType.StartsWith(tbstructcol.sqlType, StringComparison.CurrentCultureIgnoreCase) == false)
|
||
insertvalue = $"cast({insertvalue} as {tbcol.Attribute.DbType.Split(' ').First()})";
|
||
if (tbcol.Attribute.IsNullable != tbstructcol.is_nullable)
|
||
insertvalue = $"coalesce({insertvalue},{_commonUtils.FormatSql("{0}", tbcol.Attribute.DbDefautValue)})";
|
||
}
|
||
else if (tbcol.Attribute.IsNullable == false)
|
||
insertvalue = _commonUtils.FormatSql("{0}", tbcol.Attribute.DbDefautValue);
|
||
sb.Append(insertvalue).Append(", ");
|
||
}
|
||
sb.Remove(sb.Length - 2, 2).Append(" FROM ").Append(tablename).Append(";\r\n");
|
||
sb.Append("DROP TABLE ").Append(tablename).Append(";\r\n");
|
||
sb.Append("ALTER TABLE ").Append(tmptablename).Append(" RENAME TO ").Append(_commonUtils.QuoteSqlName(tbname[1])).Append(";\r\n");
|
||
//创建表的索引
|
||
foreach (var uk in tb.Indexes)
|
||
{
|
||
sb.Append("CREATE ");
|
||
if (uk.IsUnique) sb.Append("UNIQUE ");
|
||
sb.Append("INDEX ").Append(_commonUtils.QuoteSqlName(uk.Name)).Append(" ON ").Append(tablename).Append("(");
|
||
foreach (var tbcol in uk.Columns)
|
||
{
|
||
sb.Append(_commonUtils.QuoteSqlName(tbcol.Column.Attribute.Name));
|
||
if (tbcol.IsDesc) sb.Append(" DESC");
|
||
sb.Append(", ");
|
||
}
|
||
sb.Remove(sb.Length - 2, 2).Append(");\r\n");
|
||
}
|
||
}
|
||
foreach (var seqcol in seqcols)
|
||
{
|
||
var tbname = seqcol.Item2;
|
||
var seqname = Utils.GetCsName($"{tbname[0]}.{tbname[1]}_{seqcol.Item1.Attribute.Name}_sequence_name");
|
||
var tbname2 = _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}");
|
||
var colname2 = _commonUtils.QuoteSqlName(seqcol.Item1.Attribute.Name);
|
||
sb.Append("ALTER TABLE ").Append(tbname2).Append(" ALTER COLUMN ").Append(colname2).Append(" SET DEFAULT null;\r\n");
|
||
sb.Append("DROP SEQUENCE IF EXISTS ").Append(seqname).Append(";\r\n");
|
||
if (seqcol.Item3)
|
||
{
|
||
sb.Append("CREATE SEQUENCE ").Append(seqname).Append(";\r\n");
|
||
sb.Append("ALTER TABLE ").Append(tbname2).Append(" ALTER COLUMN ").Append(colname2).Append(" SET DEFAULT nextval('").Append(seqname).Append("'::regclass);\r\n");
|
||
sb.Append(" SELECT case when max(").Append(colname2).Append(") is null then 0 else setval('").Append(seqname).Append("', max(").Append(colname2).Append(")) end FROM ").Append(tbname2).Append(";\r\n");
|
||
}
|
||
}
|
||
return sb.Length == 0 ? null : sb.ToString();
|
||
}
|
||
}
|
||
} |