| 314 | } |
| 315 | |
| 316 | QueryPipelinePtr JoinStep::updatePipeline(QueryPipelines pipelines, const BuildQueryPipelineSettings & settings) |
| 317 | { |
| 318 | if (pipelines.size() != 2) |
| 319 | throw Exception(ErrorCodes::LOGICAL_ERROR, "JoinStep expect two input steps"); |
| 320 | |
| 321 | bool need_build_runtime_filter = false; |
| 322 | |
| 323 | ExpressionActionsPtr filter_action; |
| 324 | if (!join) |
| 325 | { |
| 326 | if (filter && !PredicateUtils::isTruePredicate(filter)) |
| 327 | { |
| 328 | Names output; |
| 329 | |
| 330 | bool has_outer_join_semantic = settings.context->getSettingsRef().join_use_nulls && |
| 331 | (isAny(getStrictness()) || isAll(getStrictness()) || getStrictness() == ASTTableJoin::Strictness::RightAny || isAsof(getStrictness())); |
| 332 | bool make_nullable_for_left = has_outer_join_semantic && isRightOrFull(getKind()); |
| 333 | bool make_nullable_for_right = has_outer_join_semantic && isLeftOrFull(getKind()); |
| 334 | |
| 335 | Block header; |
| 336 | for (const auto & col : input_streams[0].header) |
| 337 | { |
| 338 | if (make_nullable_for_left && JoinCommon::canBecomeNullable(col.type)) |
| 339 | { |
| 340 | header.insert(ColumnWithTypeAndName{col.column, JoinCommon::convertTypeToNullable(col.type), col.name}); |
| 341 | } |
| 342 | else |
| 343 | { |
| 344 | header.insert(col); |
| 345 | } |
| 346 | } |
| 347 | for (const auto & col : input_streams[1].header) |
| 348 | { |
| 349 | if (make_nullable_for_right && JoinCommon::canBecomeNullable(col.type)) |
| 350 | { |
| 351 | header.insert(ColumnWithTypeAndName{col.column, JoinCommon::convertTypeToNullable(col.type), col.name}); |
| 352 | } |
| 353 | else |
| 354 | { |
| 355 | header.insert(col); |
| 356 | } |
| 357 | } |
| 358 | for (const auto & item : header) |
| 359 | output.emplace_back(item.name); |
| 360 | output.emplace_back(filter->getColumnName()); |
| 361 | |
| 362 | auto actions_dag = createExpressionActions(settings.context, header.getNamesAndTypesList(), output, filter->clone()); |
| 363 | filter_action = std::make_shared<ExpressionActions>(actions_dag, settings.getActionsSettings()); |
| 364 | } |
| 365 | |
| 366 | if (!runtime_filter_builders.empty() && settings.distributed_settings.is_distributed) |
| 367 | { |
| 368 | auto builder = createRuntimeFilterBuilder(settings.context); |
| 369 | std::shared_ptr<RuntimeFilterConsumer> consumer = std::make_shared<RuntimeFilterConsumer>( |
| 370 | builder, |
| 371 | settings.context->getInitialQueryId(), |
| 372 | 1, /// for normal HashJoin only one right table, parallel or concurrent hash join will change it to num_streams |
| 373 | settings.distributed_settings.parallel_size, |
nothing calls this directly
no test coverage detected