Feature Description

The current EntitySchema lacks Tree, VirtualColumn, and other related configurations.

Tree
VirtualColumn

The MetadataArgs of EntitySchema is missing the configuration for trees and the 'mode' property in columns as a virtual property.

Can relevant properties be added, or can the EntityMetadataBuilder class be made public for customizing metadata?

The Solution

method1

• addvirtualProperty at https://github.com/typeorm/typeorm/blob/master/src/entity-schema/EntitySchemaTransformer.ts#L100
• ass trees at https://github.com/typeorm/typeorm/blob/master/src/entity-schema/EntitySchemaColumnOptions.ts#L6

method2

• public EntityMetadataBuilder api
• custom define metadata build class

// Pseudo code
let metadata=new EntitySchemaTransformer().transform(entitySchemas)
let newClass=class{};
getMetadataArgsStorage().columns.push(...metadata.columns)
// ....

• add custom build class to datasource

Considered Alternatives

no

Additional Context

No response

Relevant Database Driver(s)

• aurora-mysql
• aurora-postgres
• better-sqlite3
• cockroachdb
• cordova
• expo
• mongodb
• mysql
• nativescript
• oracle
• postgres
• react-native
• sap
• spanner
• sqlite
• sqlite-abstract
• sqljs
• sqlserver

Are you willing to resolve this issue by submitting a Pull Request?

Yes, I have the time, but I don't know how to start. I would need guidance.

I can implement these features, but I'm not sure which option the author prefers.