[Home](./index.md) > [@datashaper/schema](./schema.md) > [JoinArgsBase](./schema.joinargsbase.md) ## JoinArgsBase interface Signature: ```typescript export interface JoinArgsBase ``` ## Properties | Property | Modifiers | Type | Description | | --- | --- | --- | --- | | [on?](./schema.joinargsbase.on.md) | | string\[\] | (Optional) Column names to join with. If only one is specified, it will use for both tables. If none are specified, all matching column names will be used. |