Some string.Intern's for minimizing duplicate strings count

[AlexanderKot]

After startup application that I develop now has ~9% of duplicate strings from all allocated objects.
1st consumer is ASP.NET MVC routing, NHib related strings seems on 2d place

and many others

Value	Wasted	Count	CountAfter
System.String, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e	491,36 KB	2420	2
System.Boolean, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e	281,78 KB	1375	2
NHibernate.Envers.Entities.RevisionTypeType, NHibernate.Envers, Version=5.5.2.0, Culture=neutral, PublicKeyToken=e2c5b946037fb7f8	212,9 KB	846
Int64	8,41 KB	862	8
Int32	6,97 KB	715	6

Minimized by interning SimpleValue.typeName

Value	Wasted	Count	CountAfter
NN.Core.BL.NhibTune.IdGenerators.LongIdGenerator, Core.BL, Version=9.0.0.1, Culture=neutral, PublicKeyToken=null	61,25 KB	281	-

Minimized by interning SimpleValue.identifierGeneratorStrategy

Value	Wasted	Count	CountAfter
originalId.REV	55,21 KB	2020	-
originalId.REV.id	16,77 KB	506	2
originalId.REV.Id	16,73 KB	505	-

Minimized by interning in
AbstractPropertyMapping .ExtendPath
EntityMetamodel.MapIdentifierPropertyTypes
AbstractEntityPersister. InitSubclassPropertyAliasesMap

Value	Wasted	Count	CountAfter
0_	31,14 KB	7973	-
1_	2,75 KB	704	6

Minimized by generating suffix with interning
StringHelper.GenerateSuffix

Value	Wasted	Count	CountAfter
Id	8,57 KB	2195	1867
REV	5,68 KB	970	506

Some minimization by interning Property.name

Value	Wasted	Count	CountAfter
property	79,38 KB	5081	507

Some minimization by interning Property.propertyAccessorName

Value	Wasted	Count	CountAfter
all,delete-orphan	6,14 KB	186	-

Minimized by interning Property.cascade

Value	Wasted	Count
NHibernate.Type.EnumType`1[[..RateType, .., Culture=neutral, PublicKeyToken=null]], NHibernate	27,42 KB	102
NHibernate.Type.EnumType`1[[..DayCountBasis, .., Culture=neutral, PublicKeyToken=null]], NHibernate	19,97 KB	72
NHibernate.Type.EnumType`1[[..DefaultViewType, .., Culture=neutral, PublicKeyToken=null]], NHibernate	17,61 KB	55

And many other similar

Some minimization by interning EnumType.typeName

Current result ~ 50K duplicates removed

[AlexanderKot]

Unfortunately have no idea how optimize next duplicates

Value	Wasted	Count
AND REV =	55,77 KB	2597
AND VER =	53,82 KB	2506
‘, ‘	49,55 KB	12685
‘)’	3,71 KB	1899

[AlexanderKot]

If next code acceptable or too dirty for minimizing ', ' and ')' duplicates?

SqlString
private struct Part : IEquatable<Part>
{
	
	public Part(int sqlIndex, string content)
	{
		SqlIndex = sqlIndex;

		if (content.Length == 1 && content == StringHelper.ClosedParen)
			Content = StringHelper.ClosedParen;
		else if (content.Length == 2 && content == StringHelper.CommaSpace)
			Content = StringHelper.CommaSpace;
		else 
			Content = content;

		IsParameter = false;
	}
}