org.teiid.query.optimizer.relational

Class RelationalPlanner

java.lang.Object

org.teiid.query.optimizer.relational.RelationalPlanner

public class RelationalPlanner
extends Object

This class generates a relational plan for query execution. The output of this class is a PlanNode object - this object then becomes the input to PlanToProcessConverter to produce a RelationalPlan.

Field Summary

Fields

Modifier and Type	Field and Description
static String	MAT_PREFIX

Constructor Summary

Constructors

Constructor and Description
RelationalPlanner()

Method Summary

Modifier and Type	Method and Description
static SymbolMap	buildGroupingNode(Collection<AggregateSymbol> aggs, List<? extends Expression> groupingCols, PlanNode groupNode, CommandContext cc, IDGenerator idGenerator) Build a grouping node that introduces a anon group (without a inline view source node)
RuleStack	buildRules()
Query	createMatViewQuery(Object viewMatadataId, Object matMetadataId, String matTableName, List<? extends Expression> select, boolean isGlobal)
static Query	createMatViewQuery(Object matMetadataId, String matTableName, List<? extends Expression> select, boolean isGlobal)
org.teiid.query.optimizer.relational.RelationalPlanner.PlanningStackEntry	createPlanningStackEntry(GroupSymbol group, Command nestedCommand, boolean isUpdateProcedure, Set<org.teiid.query.optimizer.relational.RelationalPlanner.PlanningStackEntry> entries)
static PlanNode	createProjectNode(List<? extends Expression> select)
static PlanNode	createSelectNode(Criteria crit, boolean isHaving)
static PlanNode	createSortNode(OrderBy orderBy)
PlanNode	executeRules(RuleStack rules, PlanNode plan)
PlanNode	generatePlan(Command cmd)
static Object	getTrackableGroup(GroupSymbol group, QueryMetadataInterface metadata)
void	initialize(Command command, IDGenerator idGenerator, QueryMetadataInterface metadata, CapabilitiesFinder capFinder, AnalysisRecord analysisRecord, CommandContext context)
static boolean	isNoCacheGroup(QueryMetadataInterface metadata, Object metadataID, Option option)
RelationalPlan	optimize(Command command)
void	planSubqueries(Set<GroupSymbol> groupSymbols, PlanNode node, List<SubqueryContainer<?>> subqueryContainers, boolean isStackEntry, boolean skipPlanning)
static Map<ElementSymbol,List<Set<Constant>>>	remapPartitionInfo(GroupSymbol group, Map<ElementSymbol,List<Set<Constant>>> partitionInfo)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MAT_PREFIX

public static final String MAT_PREFIX

See Also:

Constant Field Values

Constructor Detail

RelationalPlanner

public RelationalPlanner()

Method Detail

optimize

public RelationalPlan optimize(Command command)
                        throws QueryPlannerException,
                               QueryMetadataException,
                               TeiidComponentException,
                               QueryResolverException

Throws:

QueryPlannerException

QueryMetadataException

TeiidComponentException

QueryResolverException

initialize

public void initialize(Command command,
                       IDGenerator idGenerator,
                       QueryMetadataInterface metadata,
                       CapabilitiesFinder capFinder,
                       AnalysisRecord analysisRecord,
                       CommandContext context)

planSubqueries

public void planSubqueries(Set<GroupSymbol> groupSymbols,
                           PlanNode node,
                           List<SubqueryContainer<?>> subqueryContainers,
                           boolean isStackEntry,
                           boolean skipPlanning)
                    throws QueryMetadataException,
                           TeiidComponentException,
                           QueryPlannerException

Throws:

QueryMetadataException

TeiidComponentException

QueryPlannerException

buildRules

public RuleStack buildRules()

executeRules

public PlanNode executeRules(RuleStack rules,
                             PlanNode plan)
                      throws QueryPlannerException,
                             QueryMetadataException,
                             TeiidComponentException

Throws:

QueryPlannerException

QueryMetadataException

TeiidComponentException

generatePlan

public PlanNode generatePlan(Command cmd)
                      throws TeiidComponentException,
                             TeiidProcessingException

Throws:

TeiidComponentException

TeiidProcessingException

remapPartitionInfo

public static Map<ElementSymbol,List<Set<Constant>>> remapPartitionInfo(GroupSymbol group,
                                                                        Map<ElementSymbol,List<Set<Constant>>> partitionInfo)

getTrackableGroup

public static Object getTrackableGroup(GroupSymbol group,
                                       QueryMetadataInterface metadata)
                                throws TeiidComponentException,
                                       QueryMetadataException

Throws:

TeiidComponentException

QueryMetadataException

createPlanningStackEntry

public org.teiid.query.optimizer.relational.RelationalPlanner.PlanningStackEntry createPlanningStackEntry(GroupSymbol group,
                                                                                                          Command nestedCommand,
                                                                                                          boolean isUpdateProcedure,
                                                                                                          Set<org.teiid.query.optimizer.relational.RelationalPlanner.PlanningStackEntry> entries)
                                                                                                   throws TeiidComponentException,
                                                                                                          QueryMetadataException,
                                                                                                          QueryPlannerException

Throws:

TeiidComponentException

QueryMetadataException

QueryPlannerException

createSelectNode

public static PlanNode createSelectNode(Criteria crit,
                                        boolean isHaving)

buildGroupingNode

public static SymbolMap buildGroupingNode(Collection<AggregateSymbol> aggs,
                                          List<? extends Expression> groupingCols,
                                          PlanNode groupNode,
                                          CommandContext cc,
                                          IDGenerator idGenerator)
                                   throws QueryMetadataException,
                                          TeiidComponentException

Build a grouping node that introduces a anon group (without a inline view source node)

Throws:

QueryMetadataException

TeiidComponentException

createSortNode

public static PlanNode createSortNode(OrderBy orderBy)

createProjectNode

public static PlanNode createProjectNode(List<? extends Expression> select)

createMatViewQuery

public static Query createMatViewQuery(Object matMetadataId,
                                       String matTableName,
                                       List<? extends Expression> select,
                                       boolean isGlobal)

createMatViewQuery

public Query createMatViewQuery(Object viewMatadataId,
                                Object matMetadataId,
                                String matTableName,
                                List<? extends Expression> select,
                                boolean isGlobal)
                         throws QueryMetadataException,
                                TeiidComponentException

Throws:

QueryMetadataException

TeiidComponentException

isNoCacheGroup

public static boolean isNoCacheGroup(QueryMetadataInterface metadata,
                                     Object metadataID,
                                     Option option)
                              throws QueryMetadataException,
                                     TeiidComponentException

Throws:

QueryMetadataException

TeiidComponentException