import { BaseQuery } from './BaseQuery';
export declare class SnowflakeQuery extends BaseQuery {
    newFilter(filter: any): any;
    convertTz(field: any): string;
    timeGroupedColumn(granularity: any, dimension: any): string;
    /**
     * Returns sql for source expression floored to timestamps aligned with
     * intervals relative to origin timestamp point.
     */
    dateBin(interval: string, source: string, origin: string): string;
    /**
     * The input interval in format "2 years 3 months 4 weeks 5 days...."
     * will be converted to Snowflake dialect "2 years, 3 months, 4 weeks, 5 days...."
     */
    private formatInterval;
    timeStampCast(value: any): string;
    defaultRefreshKeyRenewalThreshold(): number;
    defaultEveryRefreshKey(): {
        every: string;
    };
    nowTimestampSql(): string;
    hllInit(sql: any): string;
    hllMerge(sql: any): string;
    countDistinctApprox(sql: any): string;
    sqlTemplates(): any;
}
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