class_docstr: Generates an SQL query plan from a node in the a metric dataflow plan.
class_docstr_tok: ["Generates","an","SQL","query","plan","from","a","node","in","the","a","metric","dataflow","plan","."]
docstr: Implements the behaviour of AddGeneratedUuidColumnNode.
  
  Builds a new dataset that is the same as the output dataset, but with an additional column
  that contains a randomly generated UUID.
docstr_tok: ["Implements","the","behaviour","of","AddGeneratedUuidColumnNode",".","Builds","a","new","dataset","that","is","the","same","as","the","output","dataset",",","but","with","an","additional","column","that","contains","a","randomly","generated","UUID","."]
code: def visit_add_generated_uuid_column_node(
      self, node: AddGeneratedUuidColumnNode
  ) -> SqlDataSet:
      """Implements the behaviour of AddGeneratedUuidColumnNode.
  
      Builds a new dataset that is the same as the output dataset, but with an additional column
      that contains a randomly generated UUID.
      """
      input_data_set: SqlDataSet = node.parent_node.accept(self)
      input_data_set_alias = self._next_unique_table_alias()
  
      gen_uuid_spec = MetadataSpec.from_name(
          MetricFlowReservedKeywords.MF_INTERNAL_UUID.value
      )
      output_column_association = (
          self._column_association_resolver.resolve_spec(gen_uuid_spec)
      )
      output_instance_set = input_data_set.instance_set.transform(
          AddMetadata(
              (
                  MetadataInstance(
                      associated_columns=(output_column_association,),
                      spec=gen_uuid_spec,
                  ),
              )
          )
      )
      gen_uuid_sql_select_column = SqlSelectColumn(
          expr=SqlGenerateUuidExpression(),
          column_alias=output_column_association.column_name,
      )
  
      return SqlDataSet(
          instance_set=output_instance_set,
          sql_select_node=SqlSelectStatementNode(
              description="Add column with generated UUID",
              select_columns=input_data_set.instance_set.transform(
                  CreateSelectColumnsForInstances(
                      input_data_set_alias,
                      self._column_association_resolver,
                  )
              ).as_tuple()
              + (gen_uuid_sql_select_column,),
              from_source=input_data_set.sql_select_node,
              from_source_alias=input_data_set_alias,
              joins_descs=(),
              group_bys=(),
              where=None,
              order_bys=(),
          ),
      )
  
imports: from __future__ import annotations
  import logging
  from collections import OrderedDict
  from typing import List, Optional, Sequence, Tuple, Union
  from dbt_semantic_interfaces.enum_extension import assert_values_exhausted
  from dbt_semantic_interfaces.protocols.metric import MetricInputMeasure, MetricType
  from dbt_semantic_interfaces.references import MetricModelReference
  from dbt_semantic_interfaces.type_enums.aggregation_type import AggregationType
  from dbt_semantic_interfaces.type_enums.conversion_calculation_type import ConversionCalculationType
  from dbt_semantic_interfaces.validations.unique_valid_name import MetricFlowReservedKeywords
  from metricflow.aggregation_properties import AggregationState
  from metricflow.dag.id_generation import IdGeneratorRegistry
  from metricflow.dataflow.dataflow_plan import AddGeneratedUuidColumnNode, AggregateMeasuresNode, BaseOutput, CombineAggregatedOutputsNode, ComputedMetricsOutput, ComputeMetricsNode, ConstrainTimeRangeNode, DataflowPlanNodeVisitor, FilterElementsNode, JoinConversionEventsNode, JoinOverTimeRangeNode, JoinToBaseOutputNode, JoinToTimeSpineNode, MetricTimeDimensionTransformNode, MinMaxNode, OrderByLimitNode, ReadSqlSourceNode, SemiAdditiveJoinNode, WhereConstraintNode, WriteToResultDataframeNode, WriteToResultTableNode
  from metricflow.dataset.dataset import DataSet
  from metricflow.dataset.sql_dataset import SqlDataSet
  from metricflow.filters.time_constraint import TimeRangeConstraint
  from metricflow.instances import InstanceSet, MetadataInstance, MetricInstance, TimeDimensionInstance
  from metricflow.model.semantic_manifest_lookup import SemanticManifestLookup
  from metricflow.plan_conversion.instance_converters import AddLinkToLinkableElements, AddMetadata, AddMetrics, AliasAggregatedMeasures, ChangeAssociatedColumns, ChangeMeasureAggregationState, ConvertToMetadata, CreateSelectColumnForCombineOutputNode, CreateSelectColumnsForInstances, CreateSelectColumnsWithMeasuresAggregated, CreateSqlColumnReferencesForInstances, FilterElements, FilterLinkableInstancesWithLeadingLink, RemoveMeasures, RemoveMetrics, UpdateMeasureFillNullsWith, create_select_columns_for_instance_sets
  from metricflow.plan_conversion.select_column_gen import SelectColumnSet
  from metricflow.plan_conversion.spec_transforms import CreateColumnAssociations, CreateSelectCoalescedColumnsForLinkableSpecs, SelectOnlyLinkableSpecs
  from metricflow.plan_conversion.sql_join_builder import AnnotatedSqlDataSet, ColumnEqualityDescription, SqlQueryPlanJoinBuilder
  from metricflow.plan_conversion.time_spine import TimeSpineSource
  from metricflow.protocols.sql_client import SqlEngine
  from metricflow.specs.column_assoc import ColumnAssociation, ColumnAssociationResolver, SingleColumnCorrelationKey
  from metricflow.specs.specs import InstanceSpecSet, MeasureSpec, MetadataSpec, MetricSpec, TimeDimensionSpec
  from metricflow.sql.optimizer.optimization_levels import SqlQueryOptimizationLevel, SqlQueryOptimizerConfiguration
  from metricflow.sql.sql_exprs import SqlAggregateFunctionExpression, SqlBetweenExpression, SqlColumnReference, SqlColumnReferenceExpression, SqlComparison, SqlComparisonExpression, SqlDateTruncExpression, SqlExpressionNode, SqlExtractExpression, SqlFunction, SqlFunctionExpression, SqlGenerateUuidExpression, SqlLogicalExpression, SqlLogicalOperator, SqlRatioComputationExpression, SqlStringExpression, SqlStringLiteralExpression, SqlWindowFunction, SqlWindowFunctionExpression, SqlWindowOrderByArgument
  from metricflow.sql.sql_plan import SqlJoinDescription, SqlJoinType, SqlOrderByDescription, SqlQueryPlan, SqlQueryPlanNode, SqlSelectColumn, SqlSelectStatementNode, SqlTableFromClauseNode
  from metricflow.time.time_constants import ISO8601_PYTHON_FORMAT
label_desc: Use image node_id 23 for calling the DataflowToSqlQueryPlanConverter obj's underlying member method code with example usage: obj.visit_add_generated_uuid_column_node(node) and returns: SqlDataSet