@db2lake/driver-snowflake/lib/index.d.ts

Snowflake destination driver for db2lake

import { ISnowflakeDriver, SnowflakeConfig } from "./type";
/**
 * Implementation of the Snowflake destination driver.
 *
 * @template T - Type of data being written to Snowflake
 * @implements {ISnowflakeDriver<T>}
 */
export declare class SnowflakeDestinationDriver<T extends Record<string, any>> implements ISnowflakeDriver<T> {
    private connection;
    private config;
    /**
     * Creates an instance of SnowflakeDestinationDriver.
     * @param {SnowflakeConfig} config - Configuration for Snowflake operations
     */
    constructor(config: SnowflakeConfig);
    /**
     * Creates a Snowflake connection and initializes it.
     */
    connect(): Promise<void>;
    /**
     * Creates the target table if it doesn't exist.
     * @private
     */
    private createTable;
    /**
     * Builds a column definition string for table creation.
     * @private
     */
    private buildColumnDefinition;
    /**
     * Executes a query and returns the result.
     * @private
     */
    private executeQuery;
    /**
     * Inserts data in batches into the specified Snowflake table.
     *
     * @param {T[]} rows - Array of data objects to insert
     * @returns {Promise<void>}
     */
    insert(rows: T[]): Promise<void>;
    /**
     * Closes the Snowflake connection and releases resources.
     */
    close(): Promise<void>;
}
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