public static ColumnType columnType()

in modules/sql-engine/src/main/java/org/apache/ignite/internal/sql/engine/util/TypeUtils.java [328:390]
62 lines of code
36 McCabe index (conditional complexity)

    public static ColumnType columnType(RelDataType type) {
        switch (type.getSqlTypeName()) {
            case VARCHAR:
            case CHAR:
                return ColumnType.STRING;
            case DATE:
                return ColumnType.DATE;
            case TIME:
            case TIME_WITH_LOCAL_TIME_ZONE:
                return ColumnType.TIME;
            case INTEGER:
                return ColumnType.INT32;
            case TIMESTAMP:
                return ColumnType.DATETIME;
            case TIMESTAMP_WITH_LOCAL_TIME_ZONE:
                return ColumnType.TIMESTAMP;
            case BIGINT:
                return ColumnType.INT64;
            case SMALLINT:
                return ColumnType.INT16;
            case TINYINT:
                return ColumnType.INT8;
            case BOOLEAN:
                return ColumnType.BOOLEAN;
            case DECIMAL:
                return ColumnType.DECIMAL;
            case DOUBLE:
                return ColumnType.DOUBLE;
            case REAL:
            case FLOAT:
                return ColumnType.FLOAT;
            case BINARY:
            case VARBINARY:
            case ANY:
                if (type instanceof IgniteCustomType) {
                    IgniteCustomType customType = (IgniteCustomType) type;
                    return customType.spec().columnType();
                }
                // fallthrough
            case OTHER:
                return ColumnType.BYTE_ARRAY;
            case INTERVAL_YEAR:
            case INTERVAL_YEAR_MONTH:
            case INTERVAL_MONTH:
                return ColumnType.PERIOD;
            case INTERVAL_DAY_HOUR:
            case INTERVAL_DAY_MINUTE:
            case INTERVAL_DAY_SECOND:
            case INTERVAL_HOUR:
            case INTERVAL_HOUR_MINUTE:
            case INTERVAL_HOUR_SECOND:
            case INTERVAL_MINUTE:
            case INTERVAL_MINUTE_SECOND:
            case INTERVAL_SECOND:
            case INTERVAL_DAY:
                return ColumnType.DURATION;
            case NULL:
                return ColumnType.NULL;
            default:
                assert false : "Unexpected type of result: " + type.getSqlTypeName();
                return null;
        }
    }