import type { ParquetCompression } from "@dsnp/parquetjs/dist/lib/declare";
export type FrequencyParquetSchema = Array<ParquetColumn>;
export type FrequencyParquetType = ParquetBaseType | ParquetStringType | ParquetNumericType | ParquetTemporalType;
export interface ParquetColumn {
    name: string;
    column_type: FrequencyParquetType;
    compression: ColumnCompressionCodec;
    bloom_filter: boolean;
}
type ColumnCompressionCodec = ParquetCompression;
type ParquetBaseType = "BOOLEAN" | "INT32" | "INT64" | "FLOAT" | "DOUBLE" | "BYTE_ARRAY" | "FIXED_LEN_BYTE_ARRAY";
type ParquetStringType = "STRING" | "UUID";
type ParquetNumericType = ParquetInteger | ParquetDecimal;
type ParquetInteger = {
    INTEGER: {
        bit_width: number;
        sign: boolean;
    };
};
type ParquetDecimal = {
    DECIMAL: {
        scale: number;
        precision: number;
    };
};
type ParquetTemporalType = "DATE" | "INTERVAL" | ParquetTime | ParquetTimestamp;
type ParquetTime = {
    TIME: {
        is_adjusted_to_utc: boolean;
        unit: ParquetTimeUnit;
    };
};
type ParquetTimestamp = {
    TIMESTAMP: {
        is_adjusted_to_utc: boolean;
        unit: ParquetTimeUnit;
    };
};
type ParquetTimeUnit = "MILLIS" | "MICROS" | "NANOS";
export {};