n8n/packages/nodes-base/nodes/Postgres/v2/helpers/interfaces.ts

import type {
	IDataObject,
	INodeExecutionData,
	IPairedItemData,
	NodeExecutionWithMetadata,
} from 'n8n-workflow';
import type pgPromise from 'pg-promise';
import type pg from 'pg-promise/typescript/pg-subset';
import type { Client } from 'ssh2';

export type QueryMode = 'single' | 'transaction' | 'independently';

export type QueryValue = string | number | IDataObject | string[];
export type QueryValues = QueryValue[];
export type QueryWithValues = { query: string; values?: QueryValues };

export type WhereClause = { column: string; condition: string; value: string | number };
export type SortRule = { column: string; direction: string };
export type ColumnInfo = { column_name: string; data_type: string; is_nullable: string };

export type PgpClient = pgPromise.IMain<{}, pg.IClient>;
export type PgpDatabase = pgPromise.IDatabase<{}, pg.IClient>;
export type PgpConnectionParameters = pg.IConnectionParameters<pg.IClient>;
export type ConnectionsData = { db: PgpDatabase; pgp: PgpClient; sshClient?: Client };

export type ConstructExecutionMetaData = (
	inputData: INodeExecutionData[],
	options: {
		itemData: IPairedItemData | IPairedItemData[];
	},
) => NodeExecutionWithMetadata[];

export type QueriesRunner = (
	queries: QueryWithValues[],
	items: INodeExecutionData[],
	options: IDataObject,
) => Promise<INodeExecutionData[]>;