private Map<TpchColumn<?>, List<Object>> getColumnValuesRestrictions(TpchTable<?> tpchTable, Constraint<ColumnHandle> constraint) { TupleDomain<ColumnHandle> constraintSummary = constraint.getSummary(); if (constraintSummary.isAll()) { return emptyMap(); } else if (constraintSummary.isNone()) { Set<TpchColumn<?>> columns = ImmutableSet.copyOf(tpchTable.getColumns()); return asMap(columns, key -> emptyList()); } else { Map<ColumnHandle, Domain> domains = constraintSummary.getDomains().get(); Optional<Domain> orderStatusDomain = Optional.ofNullable(domains.get(toColumnHandle(ORDER_STATUS))); Optional<Map<TpchColumn<?>, List<Object>>> allowedColumnValues = orderStatusDomain.map(domain -> { List<Object> allowedValues = ORDER_STATUS_VALUES.stream() .filter(domain::includesNullableValue) .collect(toList()); return avoidTrivialOrderStatusRestriction(allowedValues); }); return allowedColumnValues.orElse(emptyMap()); } }
private Map<TpchColumn<?>, List<Object>> getColumnValuesRestrictions(TpchTable<?> tpchTable, Constraint<ColumnHandle> constraint) { TupleDomain<ColumnHandle> constraintSummary = constraint.getSummary(); if (constraintSummary.isAll()) { return emptyMap(); } else if (constraintSummary.isNone()) { Set<TpchColumn<?>> columns = ImmutableSet.copyOf(tpchTable.getColumns()); return asMap(columns, key -> emptyList()); } else { Map<ColumnHandle, Domain> domains = constraintSummary.getDomains().get(); Optional<Domain> orderStatusDomain = Optional.ofNullable(domains.get(toColumnHandle(ORDER_STATUS))); Optional<Map<TpchColumn<?>, List<Object>>> allowedColumnValues = orderStatusDomain.map(domain -> { List<Object> allowedValues = ORDER_STATUS_VALUES.stream() .filter(domain::includesNullableValue) .collect(toList()); return avoidTrivialOrderStatusRestriction(allowedValues); }); return allowedColumnValues.orElse(emptyMap()); } }