mdb-reader/lib/browser/column.js

JavaScript library to read data from Access databases

import { ColumnTypes } from "./types.js";
const columnTypeMap = {
    0x01: ColumnTypes.Boolean,
    0x02: ColumnTypes.Byte,
    0x03: ColumnTypes.Integer,
    0x04: ColumnTypes.Long,
    0x05: ColumnTypes.Currency,
    0x06: ColumnTypes.Float,
    0x07: ColumnTypes.Double,
    0x08: ColumnTypes.DateTime,
    0x09: ColumnTypes.Binary,
    0x0a: ColumnTypes.Text,
    0x0b: ColumnTypes.Long,
    0x0c: ColumnTypes.Memo,
    0x0f: ColumnTypes.RepID,
    0x10: ColumnTypes.Numeric,
    0x12: ColumnTypes.Complex,
    0x13: ColumnTypes.BigInt,
    0x14: ColumnTypes.DateTimeExtended,
};
/**
 * @see https://github.com/brianb/mdbtools/blob/d6f5745d949f37db969d5f424e69b54f0da60b9b/include/mdbtools.h#L88-L104
 * @see https://github.com/brianb/mdbtools/blob/d6f5745d949f37db969d5f424e69b54f0da60b9b/HACKING#L498-L515
 */
export function getColumnType(typeValue) {
    const type = columnTypeMap[typeValue];
    if (type === undefined) {
        throw new Error("Unsupported column type");
    }
    return type;
}
/**
 * @see https://github.com/brianb/mdbtools/blob/d6f5745d949f37db969d5f424e69b54f0da60b9b/HACKING#L481-L491
 */
export function parseColumnFlags(flags) {
    return {
        fixedLength: !!(flags & 0x01),
        nullable: !!(flags & 0x02),
        autoLong: !!(flags & 0x04),
        autoUUID: !!(flags & 0x40),
    };
}