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packages/@n8n/db/src/entities/binary-data-file.ts

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+import { Column, Entity, Index, PrimaryColumn } from '@n8n/typeorm';
+import { z } from 'zod';
+
+import { BinaryColumn, WithTimestamps } from './abstract-entity';
+
+export const SourceTypeSchema = z.enum(['execution', 'chat_message_attachment']);
+
+export type SourceType = z.infer<typeof SourceTypeSchema>;
+
+@Entity('binary_data')
+export class BinaryDataFile extends WithTimestamps {
+	@PrimaryColumn('uuid')
+	fileId: string;
+
+	@Column('varchar', { length: 50 })
+	sourceType: SourceType;
+
+	@Column('varchar', { length: 255 })
+	sourceId: string;
+
+	@BinaryColumn()
+	data: Buffer;
+
+	@Column('varchar', { length: 255, nullable: true })
+	mimeType: string | null;
+
+	@Column('varchar', { length: 255, nullable: true })
+	fileName: string | null;
+
+	@Column('int')
+	fileSize: number; // bytes
+}
+
+Index(['sourceType', 'sourceId'])(BinaryDataFile);