@Override
        public int nameToIndex(String name) {
            return originalSchema.nameToIndex(name);
        }
Registers a transformer function for a given column.
The transformer takes the original String value and returns a new String.

@param columnLabel The name of the column (case-insensitive).
@param transformer The function that transforms the value.
jdbc-v2/src/main/java/com/clickhouse/jdbc/internal/MetadataResultSet.java