It seems there is no option to identify unique keys of a table in database in generated configuration mapping classes.
For example
```
CREATE TABLE [dbo].[FinancialInstitutionOffice](
[Code] [uniqueidentifier] NOT NULL,
[FinancialInstitutionCode] [uniqueidentifier] NOT NULL,
[OfficeName] [nvarchar](200) NULL,
...
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY],
CONSTRAINT [UniqueOfficeName_FinancialInstitutionOffice] UNIQUE NONCLUSTERED
(
[FinancialInstitutionCode] ASC,
[OfficeName] ASC,
)
```
The generated code does not show the constraint of above table.
Comments: Generator supports unique indices.
For example
```
CREATE TABLE [dbo].[FinancialInstitutionOffice](
[Code] [uniqueidentifier] NOT NULL,
[FinancialInstitutionCode] [uniqueidentifier] NOT NULL,
[OfficeName] [nvarchar](200) NULL,
...
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY],
CONSTRAINT [UniqueOfficeName_FinancialInstitutionOffice] UNIQUE NONCLUSTERED
(
[FinancialInstitutionCode] ASC,
[OfficeName] ASC,
)
```
The generated code does not show the constraint of above table.
Comments: Generator supports unique indices.