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DefaultPgTypes.cs
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using System;
using System.Collections.Generic;
using Npgsql.Internal.Postgres;
using static Npgsql.TypeMapping.PgTypeGroup;
namespace Npgsql.TypeMapping;
static class DefaultPgTypes
{
static IEnumerable<KeyValuePair<Oid, DataTypeName>> GetIdentifiers()
{
var list = new List<KeyValuePair<Oid, DataTypeName>>();
foreach (var group in Items)
{
list.Add(new(group.Oid, group.Name));
list.Add(new(group.ArrayOid, group.ArrayName));
if (group.TypeKind is PgTypeKind.Range)
{
list.Add(new(group.MultirangeOid!.Value, group.MultirangeName!.Value));
list.Add(new(group.MultirangeArrayOid!.Value, group.MultirangeArrayName!.Value));
}
}
return list;
}
static Dictionary<Oid, DataTypeName>? _oidMap;
public static IReadOnlyDictionary<Oid, DataTypeName> OidMap
{
get
{
if (_oidMap is not null)
return _oidMap;
var dict = new Dictionary<Oid, DataTypeName>();
foreach (var element in GetIdentifiers())
dict.Add(element.Key, element.Value);
return _oidMap = dict;
}
}
static Dictionary<DataTypeName, Oid>? _dataTypeNameMap;
public static IReadOnlyDictionary<DataTypeName, Oid> DataTypeNameMap
{
get
{
if (_dataTypeNameMap is not null)
return _dataTypeNameMap;
var dict = new Dictionary<DataTypeName, Oid>();
foreach (var element in GetIdentifiers())
dict.Add(element.Value, element.Key);
return _dataTypeNameMap = dict;
}
}
// We could also codegen this from pg_type.dat that lives in the postgres repo.
public static IEnumerable<PgTypeGroup> Items
=> new[]
{
Create(DataTypeNames.Int2, oid: 21, arrayOid: 1005),
Create(DataTypeNames.Int4, oid: 23, arrayOid: 1007),
Create(DataTypeNames.Int4Range, oid: 3904, arrayOid: 3905, multirangeOid: 4451, multirangeArrayOid: 6150, typeKind: PgTypeKind.Range),
Create(DataTypeNames.Int8, oid: 20, arrayOid: 1016),
Create(DataTypeNames.Int8Range, oid: 3926, arrayOid: 3927, multirangeOid: 4536, multirangeArrayOid: 6157, typeKind: PgTypeKind.Range),
Create(DataTypeNames.Float4, oid: 700, arrayOid: 1021),
Create(DataTypeNames.Float8, oid: 701, arrayOid: 1022),
Create(DataTypeNames.Numeric, oid: 1700, arrayOid: 1231),
Create(DataTypeNames.NumRange, oid: 3906, arrayOid: 3907, multirangeOid: 4532, multirangeArrayOid: 6151, typeKind: PgTypeKind.Range),
Create(DataTypeNames.Money, oid: 790, arrayOid: 791),
Create(DataTypeNames.Bool, oid: 16, arrayOid: 1000),
Create(DataTypeNames.Box, oid: 603, arrayOid: 1020),
Create(DataTypeNames.Circle, oid: 718, arrayOid: 719),
Create(DataTypeNames.Line, oid: 628, arrayOid: 629),
Create(DataTypeNames.LSeg, oid: 601, arrayOid: 1018),
Create(DataTypeNames.Path, oid: 602, arrayOid: 1019),
Create(DataTypeNames.Point, oid: 600, arrayOid: 1017),
Create(DataTypeNames.Polygon, oid: 604, arrayOid: 1027),
Create(DataTypeNames.Bpchar, oid: 1042, arrayOid: 1014),
Create(DataTypeNames.Text, oid: 25, arrayOid: 1009),
Create(DataTypeNames.Varchar, oid: 1043, arrayOid: 1015),
Create(DataTypeNames.Name, oid: 19, arrayOid: 1003),
Create(DataTypeNames.Bytea, oid: 17, arrayOid: 1001),
Create(DataTypeNames.Date, oid: 1082, arrayOid: 1182),
Create(DataTypeNames.DateRange, oid: 3912, arrayOid: 3913, multirangeOid: 4535, multirangeArrayOid: 6155, typeKind: PgTypeKind.Range),
Create(DataTypeNames.Time, oid: 1083, arrayOid: 1183),
Create(DataTypeNames.Timestamp, oid: 1114, arrayOid: 1115),
Create(DataTypeNames.TsRange, oid: 3908, arrayOid: 3909, multirangeOid: 4533, multirangeArrayOid: 6152, typeKind: PgTypeKind.Range),
Create(DataTypeNames.TimestampTz, oid: 1184, arrayOid: 1185),
Create(DataTypeNames.TsTzRange, oid: 3910, arrayOid: 3911, multirangeOid: 4534, multirangeArrayOid: 6153, typeKind: PgTypeKind.Range),
Create(DataTypeNames.Interval, oid: 1186, arrayOid: 1187),
Create(DataTypeNames.TimeTz, oid: 1266, arrayOid: 1270),
Create(DataTypeNames.Inet, oid: 869, arrayOid: 1041),
Create(DataTypeNames.Cidr, oid: 650, arrayOid: 651),
Create(DataTypeNames.MacAddr, oid: 829, arrayOid: 1040),
Create(DataTypeNames.MacAddr8, oid: 774, arrayOid: 775),
Create(DataTypeNames.Bit, oid: 1560, arrayOid: 1561),
Create(DataTypeNames.Varbit, oid: 1562, arrayOid: 1563),
Create(DataTypeNames.TsVector, oid: 3614, arrayOid: 3643),
Create(DataTypeNames.TsQuery, oid: 3615, arrayOid: 3645),
Create(DataTypeNames.RegConfig, oid: 3734, arrayOid: 3735),
Create(DataTypeNames.Uuid, oid: 2950, arrayOid: 2951),
Create(DataTypeNames.Xml, oid: 142, arrayOid: 143),
Create(DataTypeNames.Json, oid: 114, arrayOid: 199),
Create(DataTypeNames.Jsonb, oid: 3802, arrayOid: 3807),
Create(DataTypeNames.Jsonpath, oid: 4072, arrayOid: 4073),
Create(DataTypeNames.RefCursor, oid: 1790, arrayOid: 2201),
Create(DataTypeNames.OidVector, oid: 30, arrayOid: 1013),
Create(DataTypeNames.Int2Vector, oid: 22, arrayOid: 1006),
Create(DataTypeNames.Oid, oid: 26, arrayOid: 1028),
Create(DataTypeNames.Xid, oid: 28, arrayOid: 1011),
Create(DataTypeNames.Xid8, oid: 5069, arrayOid: 271),
Create(DataTypeNames.Cid, oid: 29, arrayOid: 1012),
Create(DataTypeNames.RegType, oid: 2206, arrayOid: 2211),
Create(DataTypeNames.Tid, oid: 27, arrayOid: 1010),
Create(DataTypeNames.PgLsn, oid: 3220, arrayOid: 3221),
Create(DataTypeNames.Unknown, oid: 705, arrayOid: 0, typeKind: PgTypeKind.Pseudo),
Create(DataTypeNames.Void, oid: 2278, arrayOid: 0, typeKind: PgTypeKind.Pseudo),
};
}
enum PgTypeKind
{
/// A base type.
Base,
/// An enum carying its variants.
Enum,
/// A pseudo type like anyarray.
Pseudo,
// An array carying its element type.
Array,
// A range carying its element type.
Range,
// A multi-range carying its element type.
Multirange,
// A domain carying its underlying type.
Domain,
// A composite carying its constituent fields.
Composite
}
readonly struct PgTypeGroup
{
public required PgTypeKind TypeKind { get; init; }
public required DataTypeName Name { get; init; }
public required Oid Oid { get; init; }
public required DataTypeName ArrayName { get; init; }
public required Oid ArrayOid { get; init; }
public DataTypeName? MultirangeName { get; init; }
public Oid? MultirangeOid { get; init; }
public DataTypeName? MultirangeArrayName { get; init; }
public Oid? MultirangeArrayOid { get; init; }
public static PgTypeGroup Create(DataTypeName name, Oid oid, Oid arrayOid, string? multirangeName = null, Oid? multirangeOid = null, Oid? multirangeArrayOid = null, PgTypeKind typeKind = PgTypeKind.Base)
{
DataTypeName? multirangeDataTypeName = null;
if (typeKind is PgTypeKind.Range)
{
if (multirangeOid is null)
throw new ArgumentException("When a range is supplied its multirange oid cannot be omitted.");
if (multirangeArrayOid is null)
throw new ArgumentException("When a range is supplied its multirange array oid cannot be omitted.");
multirangeDataTypeName = multirangeName is not null ? DataTypeName.CreateFullyQualifiedName(multirangeName) : name.ToDefaultMultirangeName();
}
else
{
if (multirangeName is not null || multirangeOid is not null)
throw new ArgumentException("Only range types can have a multirange oid or name.");
if (multirangeArrayOid is not null)
throw new ArgumentException("Only range types can have a multirange array oid.");
}
return new PgTypeGroup
{
TypeKind = typeKind,
Name = name,
Oid = oid,
ArrayName = name.ToArrayName(),
ArrayOid = arrayOid,
MultirangeName = multirangeDataTypeName,
MultirangeOid = multirangeOid,
MultirangeArrayName = multirangeDataTypeName?.ToArrayName(),
MultirangeArrayOid = multirangeArrayOid
};
}
}