private boolean hasFilter(final Column column) {
        return column.getFilter() != null && (
                (column.getFilter().getIncludes() != null &&
                 !column.getFilter().getIncludes().isBlank()) ||
                (column.getFilter().getExcludes() != null &&
                 !column.getFilter().getExcludes().isBlank()));
    }
Test to see if a column has a pre-storage value filter

@param column The column to test.
@return True if a filter exists, false otherwise.
stroom-query/stroom-query-common/src/main/java/stroom/query/common/v2/ColumnMap.java