Enclosing class:

SqlToRelConverter
```
@Immutable(singleton=false)
public static interface SqlToRelConverter.Config
```
Interface to define the configuration for a SqlToRelConverter. Provides methods to set each configuration option.

See Also:

SqlToRelConverter.CONFIG

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default SqlToRelConverter.Config`	`addRelBuilderConfigTransform(UnaryOperator<RelBuilder.Config> transform)`	Adds a transform to `getRelBuilderConfigTransform()`.
`org.apache.calcite.rel.hint.HintStrategyTable`	`getHintStrategyTable()`	Returns the hint strategies used to decide how the hints are propagated to the relational expressions.
`default int`	`getInSubQueryThreshold()`	Returns the `inSubQueryThreshold` option, default `SqlToRelConverter.DEFAULT_IN_SUB_QUERY_THRESHOLD`.
`UnaryOperator<RelBuilder.Config>`	`getRelBuilderConfigTransform()`	Returns a function that takes a `RelBuilder.Config` and returns another.
`org.apache.calcite.tools.RelBuilderFactory`	`getRelBuilderFactory()`	Returns the factory to create `RelBuilder`, never null.
`default boolean`	`isAddJsonTypeOperatorEnabled()`	Whether add `SqlStdOperatorTable.JSON_TYPE_OPERATOR` for between json functions.
`default boolean`	`isCreateValuesRel()`	Returns the `createValuesRel` option.
`default boolean`	`isDecorrelationEnabled()`	Returns the `decorrelationEnabled` option.
`default boolean`	`isExpand()`	Returns the `expand` option.
`default boolean`	`isExplain()`	Returns the `explain` option.
`default boolean`	`isRemoveSortInSubQuery()`	Returns whether to remove Sort operator for a sub-query if the Sort has no offset and fetch limit attributes.
`default boolean`	`isTrimUnusedFields()`	Returns the `trimUnusedFields` option.
`SqlToRelConverter.Config`	`withAddJsonTypeOperatorEnabled(boolean addJsonTypeOperatorEnabled)`	Sets `isAddJsonTypeOperatorEnabled()`.
`SqlToRelConverter.Config`	`withCreateValuesRel(boolean createValuesRel)`	Sets `isCreateValuesRel()`.
`SqlToRelConverter.Config`	`withDecorrelationEnabled(boolean decorrelationEnabled)`	Sets `isDecorrelationEnabled()`.
`SqlToRelConverter.Config`	`withExpand(boolean expand)`	Sets `isExpand()`.
`SqlToRelConverter.Config`	`withExplain(boolean explain)`	Sets `isExplain()`.
`SqlToRelConverter.Config`	`withHintStrategyTable(org.apache.calcite.rel.hint.HintStrategyTable hintStrategyTable)`	Sets `getHintStrategyTable()`.
`SqlToRelConverter.Config`	`withInSubQueryThreshold(int threshold)`	Sets `getInSubQueryThreshold()`.
`SqlToRelConverter.Config`	`withRelBuilderConfigTransform(UnaryOperator<RelBuilder.Config> transform)`	Sets `getRelBuilderConfigTransform()`.
`SqlToRelConverter.Config`	`withRelBuilderFactory(org.apache.calcite.tools.RelBuilderFactory factory)`	Sets `getRelBuilderFactory()`.
`SqlToRelConverter.Config`	`withRemoveSortInSubQuery(boolean removeSortInSubQuery)`	Sets `isRemoveSortInSubQuery()`.
`SqlToRelConverter.Config`	`withTrimUnusedFields(boolean trimUnusedFields)`	Sets `isTrimUnusedFields()`.

- Method Detail
  - isDecorrelationEnabled
```
@Default
default boolean isDecorrelationEnabled()
```
    Returns the decorrelationEnabled option. Controls whether to disable sub-query decorrelation when needed. e.g. if outer joins are not supported.
  - withDecorrelationEnabled
```
SqlToRelConverter.Config withDecorrelationEnabled(boolean decorrelationEnabled)
```
    Sets isDecorrelationEnabled().
  - isTrimUnusedFields
```
@Default
default boolean isTrimUnusedFields()
```
    Returns the trimUnusedFields option. Controls whether to trim unused fields as part of the conversion process.
  - withTrimUnusedFields
```
SqlToRelConverter.Config withTrimUnusedFields(boolean trimUnusedFields)
```
    Sets isTrimUnusedFields().
  - isCreateValuesRel
```
@Default
default boolean isCreateValuesRel()
```
    Returns the createValuesRel option. Controls whether instances of LogicalValues are generated. These may not be supported by all physical implementations.
  - withCreateValuesRel
```
SqlToRelConverter.Config withCreateValuesRel(boolean createValuesRel)
```
    Sets isCreateValuesRel().
  - isExplain
```
@Default
default boolean isExplain()
```
    Returns the explain option. Describes whether the current statement is part of an EXPLAIN PLAN statement.
  - withExplain
```
SqlToRelConverter.Config withExplain(boolean explain)
```
    Sets isExplain().
  - isExpand
```
@Default
default boolean isExpand()
```
    Returns the expand option. Controls whether to expand sub-queries. If false (the default), each sub-query becomes a RexSubQuery.
    Setting expand to true is deprecated. Expansion still works, but there will be less development effort in that area.
  - withExpand
```
SqlToRelConverter.Config withExpand(boolean expand)
```
    Sets isExpand().
    Expansion is deprecated. We recommend that you do not call this method, and use the default value of isExpand(), false.
  - getInSubQueryThreshold
```
@Default
default int getInSubQueryThreshold()
```
    Returns the inSubQueryThreshold option, default SqlToRelConverter.DEFAULT_IN_SUB_QUERY_THRESHOLD. Controls the list size threshold under which SqlToRelConverter.convertInToOr(org.apache.calcite.sql2rel.SqlToRelConverter.Blackboard, java.util.List<org.apache.calcite.rex.RexNode>, org.apache.calcite.sql.SqlNodeList, org.apache.calcite.sql.fun.SqlInOperator) is used. Lists of this size or greater will instead be converted to use a join against an inline table (LogicalValues) rather than a predicate. A threshold of 0 forces usage of an inline table in all cases; a threshold of Integer.MAX_VALUE forces usage of OR in all cases.
  - withInSubQueryThreshold
```
SqlToRelConverter.Config withInSubQueryThreshold(int threshold)
```
    Sets getInSubQueryThreshold().
  - isRemoveSortInSubQuery
```
@Default
default boolean isRemoveSortInSubQuery()
```
    Returns whether to remove Sort operator for a sub-query if the Sort has no offset and fetch limit attributes. Because the remove does not change the semantics, in many cases this is a promotion. Default is true.
  - withRemoveSortInSubQuery
```
SqlToRelConverter.Config withRemoveSortInSubQuery(boolean removeSortInSubQuery)
```
    Sets isRemoveSortInSubQuery().
  - getRelBuilderFactory
```
org.apache.calcite.tools.RelBuilderFactory getRelBuilderFactory()
```
    Returns the factory to create RelBuilder, never null. Default is RelFactories.LOGICAL_BUILDER.
  - withRelBuilderFactory
```
SqlToRelConverter.Config withRelBuilderFactory(org.apache.calcite.tools.RelBuilderFactory factory)
```
    Sets getRelBuilderFactory().
  - getRelBuilderConfigTransform
```
UnaryOperator<RelBuilder.Config> getRelBuilderConfigTransform()
```
    Returns a function that takes a RelBuilder.Config and returns another. Default is the identity function.
  - withRelBuilderConfigTransform
```
SqlToRelConverter.Config withRelBuilderConfigTransform(UnaryOperator<RelBuilder.Config> transform)
```
    Sets getRelBuilderConfigTransform().
    
    See Also:
    
    addRelBuilderConfigTransform(java.util.function.UnaryOperator<org.apache.calcite.tools.RelBuilder.Config>)
  - addRelBuilderConfigTransform
```
default SqlToRelConverter.Config addRelBuilderConfigTransform(UnaryOperator<RelBuilder.Config> transform)
```
    Adds a transform to getRelBuilderConfigTransform().
  - getHintStrategyTable
```
org.apache.calcite.rel.hint.HintStrategyTable getHintStrategyTable()
```
    Returns the hint strategies used to decide how the hints are propagated to the relational expressions. Default is HintStrategyTable.EMPTY.
  - withHintStrategyTable
```
SqlToRelConverter.Config withHintStrategyTable(org.apache.calcite.rel.hint.HintStrategyTable hintStrategyTable)
```
    Sets getHintStrategyTable().
  - isAddJsonTypeOperatorEnabled
```
@Default
default boolean isAddJsonTypeOperatorEnabled()
```
    Whether add SqlStdOperatorTable.JSON_TYPE_OPERATOR for between json functions.
  - withAddJsonTypeOperatorEnabled
```
SqlToRelConverter.Config withAddJsonTypeOperatorEnabled(boolean addJsonTypeOperatorEnabled)
```
    Sets isAddJsonTypeOperatorEnabled().

Interface SqlToRelConverter.Config

Method Summary

Method Detail

isDecorrelationEnabled

withDecorrelationEnabled

isTrimUnusedFields

withTrimUnusedFields

isCreateValuesRel

withCreateValuesRel

isExplain

withExplain

isExpand

withExpand

getInSubQueryThreshold

withInSubQueryThreshold

isRemoveSortInSubQuery

withRemoveSortInSubQuery

getRelBuilderFactory

withRelBuilderFactory

getRelBuilderConfigTransform

withRelBuilderConfigTransform

addRelBuilderConfigTransform

getHintStrategyTable

withHintStrategyTable

isAddJsonTypeOperatorEnabled

withAddJsonTypeOperatorEnabled