Package org.apache.flink.table.operations

Class FilterQueryOperation

java.lang.Object
org.apache.flink.table.operations.FilterQueryOperation
All Implemented Interfaces:
Operation, QueryOperation
@Internal public class FilterQueryOperation extends Object implements QueryOperation
Filters out rows of underlying relational operation that do not match given condition.

  • Constructor Details

    • FilterQueryOperation

      public FilterQueryOperation(org.apache.flink.table.expressions.ResolvedExpression condition, QueryOperation child)

  • Method Details

    • getCondition

      public org.apache.flink.table.expressions.ResolvedExpression getCondition()

    • getResolvedSchema

      public org.apache.flink.table.catalog.ResolvedSchema getResolvedSchema()
      Description copied from interface: QueryOperation
      Resolved schema of this operation.
      Specified by:
      getResolvedSchema in interface QueryOperation

    • asSummaryString

      public String asSummaryString()
      Description copied from interface: Operation
      Returns a string that summarizes this operation for printing to a console. An implementation might skip very specific properties.
      Specified by:
      asSummaryString in interface Operation
      Returns:
      summary string of this operation for debugging purposes

    • asSerializableString

      public String asSerializableString()
      Description copied from interface: QueryOperation
      Returns a string that fully serializes this instance. The serialized string can be used for storing the query in e.g. a Catalog as a view.
      Specified by:
      asSerializableString in interface QueryOperation
      Returns:
      detailed string for persisting in a catalog
      See Also:

    • getChildren

      public List<QueryOperation> getChildren()
      Specified by:
      getChildren in interface QueryOperation

    • accept

      public <T> T accept(QueryOperationVisitor<T> visitor)
      Specified by:
      accept in interface QueryOperation