ImmutableAnalysis¶

ImmutableAnalysis is an abstraction of the query analysis results.

This Immutable prefix in the name of ImmutableAnalysis is to denote that it is an immutable view over the AST tree of a SQL statement (as parsed using Analyzer.Visitor).

Contract (Subset)¶

getTableFunctions¶

List<FunctionCall> getTableFunctions()

See Analysis

Used when:

• QueryAnalyzer is requested to analyze a Query
• LogicalPlanner is requested to buildPersistentLogicalPlan
• FlatMapNode is created and buildSchema

getInto¶

Optional<Into> getInto()

See Analysis

Used when:

• PullQueryValidator is requested to validate
• PushQueryValidator is requested to validate
• LogicalPlanner is requested to build an OutputNode, getTargetSchema, buildAggregateNode, buildUserProjectNode and buildAggregateSchema

getJoin¶

List<JoinInfo> getJoin()

See Analysis

Used when:

• LogicalPlanner is requested to build a source node

getSelectItems¶

List<SelectItem> getSelectItems()

See Analysis

Used when:

• Analyzer.Visitor is requested to throwOnUnknownColumnReference
• PullQueryValidator is requested to disallowedColumnNameInSelectClause
• LogicalPlanner is requested to buildQueryLogicalPlan, buildAggregateNode, buildUserProjectNode, buildJoinKey
• FlatMapNode is requested to buildColumnMappings

isJoin¶

boolean isJoin()

See Analysis

Used when:

• PullQueryValidator is created
• LogicalPlanner is requested to build a source node

Implementations¶

• Analysis