import { Metric, SupportedDbtAdapter, TimeIntervalUnit, UnnestSql, UnnestSqlArgs, WarehouseSqlBuilder, WeekDay } from '@lightdash/common';
export default abstract class WarehouseBaseSqlBuilder implements WarehouseSqlBuilder {
    protected startOfWeek: WeekDay | null | undefined;
    constructor(startOfWeek?: WeekDay | null);
    getStartOfWeek(): WeekDay | null | undefined;
    abstract getAdapterType(): SupportedDbtAdapter;
    supportsCteMaterialization(): boolean;
    getFieldQuoteChar(): string;
    getStringQuoteChar(): string;
    getEscapeStringQuoteChar(): string;
    getFloatingType(): string;
    getNullSafeEqualSql(left: string, right: string): string;
    getNullSafeEqualJoinSql(left: string, right: string): string;
    getMetricSql(sql: string, metric: Metric): string;
    concatString(...args: string[]): string;
    escapeString(value: string): string;
    castToTimestamp(date: Date): string;
    castToDate(date: Date): string;
    castToNaiveTimestamp(date: Date): string;
    protected static readonly intervalUnitsSingular: Record<TimeIntervalUnit, string>;
    getIntervalSql(value: number, unit: TimeIntervalUnit): string;
    getTimestampDiffSeconds(startTimestampSql: string, endTimestampSql: string): string;
    getMedianSql(valueSql: string): string;
    buildArray(elements: string[]): string;
    buildArrayAgg(expression: string, orderBy?: string): string;
    getUnnestSql(_args: UnnestSqlArgs): UnnestSql | null;
}
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