RelOptTable.ViewExpander (Apache Calcite API)

All Known Subinterfaces:

RelOptTable.ToRelContext

All Known Implementing Classes:

CalciteMaterializer, CalcitePrepareImpl.CalcitePreparingStmt, PlannerImpl, PlannerImpl.ViewExpanderImpl

Enclosing interface:

RelOptTable
```
public static interface RelOptTable.ViewExpander
```
Can expand a view into relational expressions.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`RelRoot`	`expandView(RelDataType rowType, java.lang.String queryString, java.util.List<java.lang.String> schemaPath, java.util.List<java.lang.String> viewPath)`	Returns a relational expression that is to be substituted for an access to a SQL view.

- Method Detail
  - expandView
```
RelRoot expandView(RelDataType rowType,
                   java.lang.String queryString,
                   java.util.List<java.lang.String> schemaPath,
                   java.util.List<java.lang.String> viewPath)
```
    Returns a relational expression that is to be substituted for an access to a SQL view.
    
    Parameters:
    
    rowType - Row type of the view
    
    queryString - Body of the view
    
    schemaPath - Path of a schema wherein to find referenced tables
    
    viewPath - Path of the view, ending with its name; may be null
    
    Returns:
    
    Relational expression