JoinFilterPreAnalysis (druid-processing 0.19.0 API)

```
public class JoinFilterPreAnalysis
extends Object
```
A JoinFilterPreAnalysis contains filter push down/rewrite information that does not have per-segment dependencies. This includes: - The query's JoinableClauses list - The original filter that an analysis was performed ons - A list of filter clauses from the original filter's CNF representation that only reference the base table - A list of filter clauses from the original filter's CNF representation that reference RHS join tables - A list of virtual columns that can only be computed post-join - The JoinFilterRewriteConfig that this pre-analysis is associated with.

Nested Classes
Modifier and Type	Class and Description
`static class`	`JoinFilterPreAnalysis.Builder` A Builder class to build `JoinFilterPreAnalysis`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Map<String,List<JoinFilterColumnCorrelationAnalysis>>`	`getCorrelationsByDirectFilteringColumn()`
`Map<String,List<JoinFilterColumnCorrelationAnalysis>>`	`getCorrelationsByFilteringColumn()`
`Equiconditions`	`getEquiconditions()`
`JoinableClauses`	`getJoinableClauses()`
`JoinFilterPreAnalysisKey`	`getKey()`
`List<Filter>`	`getNormalizedBaseTableClauses()`
`List<Filter>`	`getNormalizedJoinTableClauses()`
`Filter`	`getOriginalFilter()`
`List<VirtualColumn>`	`getPostJoinVirtualColumns()`
`boolean`	`isEnableFilterPushDown()`
`boolean`	`isEnableFilterRewrite()`

public JoinFilterPreAnalysisKey getKey()

public JoinableClauses getJoinableClauses()

@Nullable
public Filter getOriginalFilter()

public List<VirtualColumn> getPostJoinVirtualColumns()

public List<Filter> getNormalizedBaseTableClauses()

public List<Filter> getNormalizedJoinTableClauses()

public Map<String,List<JoinFilterColumnCorrelationAnalysis>> getCorrelationsByFilteringColumn()

public Map<String,List<JoinFilterColumnCorrelationAnalysis>> getCorrelationsByDirectFilteringColumn()

public boolean isEnableFilterPushDown()

public boolean isEnableFilterRewrite()

public Equiconditions getEquiconditions()

Class JoinFilterPreAnalysis