TableImpl (Flink : Table : API Java 1.16.1 API)

java.lang.Object
- org.apache.flink.table.api.internal.TableImpl

All Implemented Interfaces:

Executable, Explainable<Table>, Table
```
@Internal
public class TableImpl
extends Object
implements Table
```
Implementation for Table.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Table`	`addColumns(org.apache.flink.table.expressions.Expression... fields)` Adds additional columns.
`Table`	`addOrReplaceColumns(org.apache.flink.table.expressions.Expression... fields)` Adds additional columns.
`AggregatedTable`	`aggregate(org.apache.flink.table.expressions.Expression aggregateFunction)` Performs a global aggregate operation with an aggregate function.
`Table`	`as(org.apache.flink.table.expressions.Expression... fields)` Renames the fields of the expression result.
`Table`	`as(String field, String... fields)` Renames the fields of the expression result.
`static TableImpl`	`createTable(TableEnvironmentInternal tableEnvironment, QueryOperation operationTree, OperationTreeBuilder operationTreeBuilder, FunctionLookup functionLookup)`
`org.apache.flink.table.functions.TemporalTableFunction`	`createTemporalTableFunction(org.apache.flink.table.expressions.Expression timeAttribute, org.apache.flink.table.expressions.Expression primaryKey)` Creates `TemporalTableFunction` backed up by this table as a history table.
`Table`	`distinct()` Removes duplicate values and returns only distinct (different) values.
`Table`	`dropColumns(org.apache.flink.table.expressions.Expression... fields)` Drops existing columns.
`TableResult`	`execute()` Executes this object.
`String`	`explain(ExplainDetail... extraDetails)` Returns the AST of this object and the execution plan to compute the result of the given statement.
`Table`	`fetch(int fetch)` Limits a (possibly sorted) result to the first n rows.
`Table`	`filter(org.apache.flink.table.expressions.Expression predicate)` Filters out elements that don't pass the filter predicate.
`FlatAggregateTable`	`flatAggregate(org.apache.flink.table.expressions.Expression tableAggregateFunction)` Perform a global flatAggregate without groupBy.
`Table`	`flatMap(org.apache.flink.table.expressions.Expression tableFunction)` Performs a flatMap operation with an user-defined table function or built-in table function.
`Table`	`fullOuterJoin(Table right, org.apache.flink.table.expressions.Expression joinPredicate)` Joins two `Table`s.
`QueryOperation`	`getQueryOperation()` Returns underlying logical representation of this table.
`org.apache.flink.table.catalog.ResolvedSchema`	`getResolvedSchema()` Returns the resolved schema of this table.
`TableEnvironment`	`getTableEnvironment()`
`GroupedTable`	`groupBy(org.apache.flink.table.expressions.Expression... fields)` Groups the elements on some grouping keys.
`TablePipeline`	`insertInto(String tablePath)` Declares that the pipeline defined by the given `Table` object should be written to a table (backed by a `DynamicTableSink`) that was registered under the specified path.
`TablePipeline`	`insertInto(String tablePath, boolean overwrite)` Declares that the pipeline defined by the given `Table` object should be written to a table (backed by a `DynamicTableSink`) that was registered under the specified path.
`TablePipeline`	`insertInto(TableDescriptor descriptor)` Declares that the pipeline defined by the given `Table` object should be written to a table (backed by a `DynamicTableSink`) expressed via the given `TableDescriptor`.
`TablePipeline`	`insertInto(TableDescriptor descriptor, boolean overwrite)` Declares that the pipeline defined by the given `Table` object should be written to a table (backed by a `DynamicTableSink`) expressed via the given `TableDescriptor`.
`Table`	`intersect(Table right)` Intersects two `Table`s with duplicate records removed.
`Table`	`intersectAll(Table right)` Intersects two `Table`s.
`Table`	`join(Table right)` Joins two `Table`s.
`Table`	`join(Table right, org.apache.flink.table.expressions.Expression joinPredicate)` Joins two `Table`s.
`Table`	`joinLateral(org.apache.flink.table.expressions.Expression tableFunctionCall)` Joins this `Table` with an user-defined `TableFunction`.
`Table`	`joinLateral(org.apache.flink.table.expressions.Expression tableFunctionCall, org.apache.flink.table.expressions.Expression joinPredicate)` Joins this `Table` with an user-defined `TableFunction`.
`Table`	`leftOuterJoin(Table right)` Joins two `Table`s.
`Table`	`leftOuterJoin(Table right, org.apache.flink.table.expressions.Expression joinPredicate)` Joins two `Table`s.
`Table`	`leftOuterJoinLateral(org.apache.flink.table.expressions.Expression tableFunctionCall)` Joins this `Table` with an user-defined `TableFunction`.
`Table`	`leftOuterJoinLateral(org.apache.flink.table.expressions.Expression tableFunctionCall, org.apache.flink.table.expressions.Expression joinPredicate)` Joins this `Table` with an user-defined `TableFunction`.
`Table`	`map(org.apache.flink.table.expressions.Expression mapFunction)` Performs a map operation with an user-defined scalar function or built-in scalar function.
`Table`	`minus(Table right)` Minus of two `Table`s with duplicate records removed.
`Table`	`minusAll(Table right)` Minus of two `Table`s.
`Table`	`offset(int offset)` Limits a (possibly sorted) result from an offset position.
`Table`	`orderBy(org.apache.flink.table.expressions.Expression... fields)` Sorts the given `Table`.
`void`	`printSchema()` Prints the schema of this table to the console in a summary format.
`Table`	`renameColumns(org.apache.flink.table.expressions.Expression... fields)` Renames existing columns.
`Table`	`rightOuterJoin(Table right, org.apache.flink.table.expressions.Expression joinPredicate)` Joins two `Table`s.
`Table`	`select(org.apache.flink.table.expressions.Expression... fields)` Performs a selection operation.
`String`	`toString()`
`Table`	`union(Table right)` Unions two `Table`s with duplicate records removed.
`Table`	`unionAll(Table right)` Unions two `Table`s.
`Table`	`where(org.apache.flink.table.expressions.Expression predicate)` Filters out elements that don't pass the filter predicate.
`GroupWindowedTable`	`window(GroupWindow groupWindow)` Groups the records of a table by assigning them to windows defined by a time or row interval.
`OverWindowedTable`	`window(OverWindow... overWindows)` Defines over-windows on the records of a table.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.flink.table.api.Table
executeInsert, executeInsert, executeInsert, executeInsert, getSchema, limit, limit

Methods inherited from interface org.apache.flink.table.api.Explainable
printExplain

- Method Detail
  - getTableEnvironment
```
public TableEnvironment getTableEnvironment()
```
  - createTable
```
public static TableImpl createTable(TableEnvironmentInternal tableEnvironment,
                                    QueryOperation operationTree,
                                    OperationTreeBuilder operationTreeBuilder,
                                    FunctionLookup functionLookup)
```
  - getResolvedSchema
```
public org.apache.flink.table.catalog.ResolvedSchema getResolvedSchema()
```
    Description copied from interface: Table
    
    Returns the resolved schema of this table.
    
    Specified by:
    
    getResolvedSchema in interface Table
  - printSchema
```
public void printSchema()
```
    Description copied from interface: Table
    
    Prints the schema of this table to the console in a summary format.
    
    Specified by:
    
    printSchema in interface Table
  - getQueryOperation
```
public QueryOperation getQueryOperation()
```
    Description copied from interface: Table
    
    Returns underlying logical representation of this table.
    
    Specified by:
    
    getQueryOperation in interface Table
  - select
```
public Table select(org.apache.flink.table.expressions.Expression... fields)
```
    Description copied from interface: Table
    Performs a selection operation. Similar to a SQL SELECT statement. The field expressions can contain complex expressions and aggregations.
    Java Example:
```
 tab.select($("key"), $("value").avg().plus(" The average").as("average"));
 
```
    Scala Example:
```
 tab.select($"key", $"value".avg + " The average" as "average")
 
```
    Specified by:
    
    select in interface Table
  - createTemporalTableFunction
```
public org.apache.flink.table.functions.TemporalTableFunction createTemporalTableFunction(org.apache.flink.table.expressions.Expression timeAttribute,
                                                                                          org.apache.flink.table.expressions.Expression primaryKey)
```
    Description copied from interface: Table
    
    Creates TemporalTableFunction backed up by this table as a history table. Temporal Tables represent a concept of a table that changes over time and for which Flink keeps track of those changes. TemporalTableFunction provides a way how to access those data.
    For more information please check Flink's documentation on Temporal Tables.
    Currently TemporalTableFunctions are only supported in streaming.
    
    Specified by:
    
    createTemporalTableFunction in interface Table
    
    Parameters:
    
    timeAttribute - Must points to a time indicator. Provides a way to compare which records are a newer or older version.
    
    primaryKey - Defines the primary key. With primary key it is possible to update a row or to delete it.
    
    Returns:
    
    TemporalTableFunction which is an instance of TableFunction. It takes one single argument, the timeAttribute, for which it returns matching version of the Table, from which TemporalTableFunction was created.
  - as
```
public Table as(String field,
                String... fields)
```
    Description copied from interface: Table
    Renames the fields of the expression result. Use this to disambiguate fields before joining to operations.
    Example:
```
 tab.as("a", "b")
 
```
    Specified by:
    
    as in interface Table
  - as
```
public Table as(org.apache.flink.table.expressions.Expression... fields)
```
    Description copied from interface: Table
    Renames the fields of the expression result. Use this to disambiguate fields before joining to operations.
    Java Example:
```
 tab.as($("a"), $("b"))
 
```
    Scala Example:
```
 tab.as($"a", $"b")
 
```
    Specified by:
    
    as in interface Table
  - filter
```
public Table filter(org.apache.flink.table.expressions.Expression predicate)
```
    Description copied from interface: Table
    Filters out elements that don't pass the filter predicate. Similar to a SQL WHERE clause.
    Java Example:
```
 tab.filter($("name").isEqual("Fred"));
 
```
    Scala Example:
```
 tab.filter($"name" === "Fred")
 
```
    Specified by:
    
    filter in interface Table
  - where
```
public Table where(org.apache.flink.table.expressions.Expression predicate)
```
    Description copied from interface: Table
    Filters out elements that don't pass the filter predicate. Similar to a SQL WHERE clause.
    Java Example:
```
 tab.where($("name").isEqual("Fred"));
 
```
    Scala Example:
```
 tab.where($"name" === "Fred")
 
```
    Specified by:
    
    where in interface Table
  - groupBy
```
public GroupedTable groupBy(org.apache.flink.table.expressions.Expression... fields)
```
    Description copied from interface: Table
    Groups the elements on some grouping keys. Use this before a selection with aggregations to perform the aggregation on a per-group basis. Similar to a SQL GROUP BY statement.
    Java Example:
```
 tab.groupBy($("key")).select($("key"), $("value").avg());
 
```
    Scala Example:
```
 tab.groupBy($"key").select($"key", $"value".avg)
 
```
    Specified by:
    
    groupBy in interface Table
  - distinct
```
public Table distinct()
```
    Description copied from interface: Table
    Removes duplicate values and returns only distinct (different) values.
    Example:
```
 tab.select($("key"), $("value")).distinct();
 
```
    Specified by:
    
    distinct in interface Table
  - join
```
public Table join(Table right)
```
    Description copied from interface: Table
    Joins two Tables. Similar to a SQL join. The fields of the two joined operations must not overlap, use as to rename fields if necessary. You can use where and select clauses after a join to further specify the behaviour of the join.
    Note: Both tables must be bound to the same TableEnvironment .
    Example:
```
 left.join(right)
     .where($("a").isEqual($("b")).and($("c").isGreater(3))
     .select($("a"), $("b"), $("d"));
 
```
    Specified by:
    
    join in interface Table
  - join
```
public Table join(Table right,
                  org.apache.flink.table.expressions.Expression joinPredicate)
```
    Description copied from interface: Table
    Joins two Tables. Similar to a SQL join. The fields of the two joined operations must not overlap, use as to rename fields if necessary.
    Note: Both tables must be bound to the same TableEnvironment .
    Java Example:
```
 left.join(right, $("a").isEqual($("b")))
     .select($("a"), $("b"), $("d"));
 
```
    Scala Example:
```
 left.join(right, $"a" === $"b")
     .select($"a", $"b", $"d")
 
```
    Specified by:
    
    join in interface Table
  - leftOuterJoin
```
public Table leftOuterJoin(Table right)
```
    Description copied from interface: Table
    Joins two Tables. Similar to a SQL left outer join. The fields of the two joined operations must not overlap, use as to rename fields if necessary.
    Note: Both tables must be bound to the same TableEnvironment and its TableConfig must have null check enabled (default).
    Example:
```
 left.leftOuterJoin(right)
     .select($("a"), $("b"), $("d"));
 
```
    Specified by:
    
    leftOuterJoin in interface Table
  - leftOuterJoin
```
public Table leftOuterJoin(Table right,
                           org.apache.flink.table.expressions.Expression joinPredicate)
```
    Description copied from interface: Table
    Joins two Tables. Similar to a SQL left outer join. The fields of the two joined operations must not overlap, use as to rename fields if necessary.
    Note: Both tables must be bound to the same TableEnvironment and its TableConfig must have null check enabled (default).
    Java Example:
```
 left.leftOuterJoin(right, $("a").isEqual($("b")))
     .select($("a"), $("b"), $("d"));
 
```
    Scala Example:
```
 left.leftOuterJoin(right, $"a" === $"b")
     .select($"a", $"b", $"d")
 
```
    Specified by:
    
    leftOuterJoin in interface Table
  - rightOuterJoin
```
public Table rightOuterJoin(Table right,
                            org.apache.flink.table.expressions.Expression joinPredicate)
```
    Description copied from interface: Table
    Joins two Tables. Similar to a SQL right outer join. The fields of the two joined operations must not overlap, use as to rename fields if necessary.
    Note: Both tables must be bound to the same TableEnvironment and its TableConfig must have null check enabled (default).
    Java Example:
```
 left.rightOuterJoin(right, $("a").isEqual($("b")))
     .select($("a"), $("b"), $("d"));
 
```
    Scala Example:
```
 left.rightOuterJoin(right, $"a" === $"b")
     .select($"a", $"b", $"d")
 
```
    Specified by:
    
    rightOuterJoin in interface Table
  - fullOuterJoin
```
public Table fullOuterJoin(Table right,
                           org.apache.flink.table.expressions.Expression joinPredicate)
```
    Description copied from interface: Table
    Joins two Tables. Similar to a SQL full outer join. The fields of the two joined operations must not overlap, use as to rename fields if necessary.
    Note: Both tables must be bound to the same TableEnvironment and its TableConfig must have null check enabled (default).
    Java Example:
```
 left.fullOuterJoin(right, $("a").isEqual($("b")))
     .select($("a"), $("b"), $("d"));
 
```
    Scala Example:
```
 left.fullOuterJoin(right, $"a" === $"b")
     .select($"a", $"b", $"d")
 
```
    Specified by:
    
    fullOuterJoin in interface Table
  - joinLateral
```
public Table joinLateral(org.apache.flink.table.expressions.Expression tableFunctionCall)
```
    Description copied from interface: Table
    Joins this Table with an user-defined TableFunction. This join is similar to a SQL inner join with ON TRUE predicate but works with a table function. Each row of the table is joined with all rows produced by the table function.
    Java Example:
```
 class MySplitUDTF extends TableFunction<String> {
   public void eval(String str) {
     str.split("#").forEach(this::collect);
   }
 }

 table.joinLateral(call(MySplitUDTF.class, $("c")).as("s"))
      .select($("a"), $("b"), $("c"), $("s"));
 
```
    Scala Example:
```
 class MySplitUDTF extends TableFunction[String] {
   def eval(str: String): Unit = {
     str.split("#").foreach(collect)
   }
 }

 val split = new MySplitUDTF()
 table.joinLateral(split($"c") as "s")
      .select($"a", $"b", $"c", $"s")
 
```
    Specified by:
    
    joinLateral in interface Table
  - joinLateral
```
public Table joinLateral(org.apache.flink.table.expressions.Expression tableFunctionCall,
                         org.apache.flink.table.expressions.Expression joinPredicate)
```
    Description copied from interface: Table
    Joins this Table with an user-defined TableFunction. This join is similar to a SQL inner join but works with a table function. Each row of the table is joined with all rows produced by the table function.
    Java Example:
```
 class MySplitUDTF extends TableFunction<String> {
   public void eval(String str) {
     str.split("#").forEach(this::collect);
   }
 }

 table.joinLateral(call(MySplitUDTF.class, $("c")).as("s"), $("a").isEqual($("s")))
      .select($("a"), $("b"), $("c"), $("s"));
 
```
    Scala Example:
```
 class MySplitUDTF extends TableFunction[String] {
   def eval(str: String): Unit = {
     str.split("#").foreach(collect)
   }
 }

 val split = new MySplitUDTF()
 table.joinLateral(split($"c") as "s", $"a" === $"s")
      .select($"a", $"b", $"c", $"s")
 
```
    Specified by:
    
    joinLateral in interface Table
  - leftOuterJoinLateral
```
public Table leftOuterJoinLateral(org.apache.flink.table.expressions.Expression tableFunctionCall)
```
    Description copied from interface: Table
    Joins this Table with an user-defined TableFunction. This join is similar to a SQL left outer join with ON TRUE predicate but works with a table function. Each row of the table is joined with all rows produced by the table function. If the table function does not produce any row, the outer row is padded with nulls.
    Java Example:
```
 class MySplitUDTF extends TableFunction<String> {
   public void eval(String str) {
     str.split("#").forEach(this::collect);
   }
 }

 table.leftOuterJoinLateral(call(MySplitUDTF.class, $("c")).as("s"))
      .select($("a"), $("b"), $("c"), $("s"));
 
```
    Scala Example:
```
 class MySplitUDTF extends TableFunction[String] {
   def eval(str: String): Unit = {
     str.split("#").foreach(collect)
   }
 }

 val split = new MySplitUDTF()
 table.leftOuterJoinLateral(split($"c") as "s")
      .select($"a", $"b", $"c", $"s")
 
```
    Specified by:
    
    leftOuterJoinLateral in interface Table
  - leftOuterJoinLateral
```
public Table leftOuterJoinLateral(org.apache.flink.table.expressions.Expression tableFunctionCall,
                                  org.apache.flink.table.expressions.Expression joinPredicate)
```
    Description copied from interface: Table
    Joins this Table with an user-defined TableFunction. This join is similar to a SQL left outer join with ON TRUE predicate but works with a table function. Each row of the table is joined with all rows produced by the table function. If the table function does not produce any row, the outer row is padded with nulls.
    Java Example:
```
 class MySplitUDTF extends TableFunction<String> {
   public void eval(String str) {
     str.split("#").forEach(this::collect);
   }
 }

 table.leftOuterJoinLateral(call(MySplitUDTF.class, $("c")).as("s"), $("a").isEqual($("s")))
      .select($("a"), $("b"), $("c"), $("s"));
 
```
    Scala Example:
```
 class MySplitUDTF extends TableFunction[String] {
   def eval(str: String): Unit = {
     str.split("#").foreach(collect)
   }
 }

 val split = new MySplitUDTF()
 table.leftOuterJoinLateral(split($"c") as "s", $"a" === $"s")
      .select($"a", $"b", $"c", $"s")
 
```
    Specified by:
    
    leftOuterJoinLateral in interface Table
  - minus
```
public Table minus(Table right)
```
    Description copied from interface: Table
    Minus of two Tables with duplicate records removed. Similar to a SQL EXCEPT clause. Minus returns records from the left table that do not exist in the right table. Duplicate records in the left table are returned exactly once, i.e., duplicates are removed. Both tables must have identical field types.
    Note: Both tables must be bound to the same TableEnvironment.
    Example:
```
 left.minus(right);
 
```
    Specified by:
    
    minus in interface Table
  - minusAll
```
public Table minusAll(Table right)
```
    Description copied from interface: Table
    Minus of two Tables. Similar to a SQL EXCEPT ALL. Similar to a SQL EXCEPT ALL clause. MinusAll returns the records that do not exist in the right table. A record that is present n times in the left table and m times in the right table is returned (n - m) times, i.e., as many duplicates as are present in the right table are removed. Both tables must have identical field types.
    Note: Both tables must be bound to the same TableEnvironment.
    Example:
```
 left.minusAll(right);
 
```
    Specified by:
    
    minusAll in interface Table
  - union
```
public Table union(Table right)
```
    Description copied from interface: Table
    Unions two Tables with duplicate records removed. Similar to a SQL UNION. The fields of the two union operations must fully overlap.
    Note: Both tables must be bound to the same TableEnvironment.
    Example:
```
 left.union(right);
 
```
    Specified by:
    
    union in interface Table
  - unionAll
```
public Table unionAll(Table right)
```
    Description copied from interface: Table
    Unions two Tables. Similar to a SQL UNION ALL. The fields of the two union operations must fully overlap.
    Note: Both tables must be bound to the same TableEnvironment.
    Example:
```
 left.unionAll(right);
 
```
    Specified by:
    
    unionAll in interface Table
  - intersect
```
public Table intersect(Table right)
```
    Description copied from interface: Table
    Intersects two Tables with duplicate records removed. Intersect returns records that exist in both tables. If a record is present in one or both tables more than once, it is returned just once, i.e., the resulting table has no duplicate records. Similar to a SQL INTERSECT. The fields of the two intersect operations must fully overlap.
    Note: Both tables must be bound to the same TableEnvironment.
    Example:
```
 left.intersect(right);
 
```
    Specified by:
    
    intersect in interface Table
  - intersectAll
```
public Table intersectAll(Table right)
```
    Description copied from interface: Table
    Intersects two Tables. IntersectAll returns records that exist in both tables. If a record is present in both tables more than once, it is returned as many times as it is present in both tables, i.e., the resulting table might have duplicate records. Similar to an SQL INTERSECT ALL. The fields of the two intersect operations must fully overlap.
    Note: Both tables must be bound to the same TableEnvironment.
    Example:
```
 left.intersectAll(right);
 
```
    Specified by:
    
    intersectAll in interface Table
  - orderBy
```
public Table orderBy(org.apache.flink.table.expressions.Expression... fields)
```
    Description copied from interface: Table
    Sorts the given Table. Similar to SQL ORDER BY.
    The resulting Table is globally sorted across all parallel partitions.
    Java Example:
```
 tab.orderBy($("name").desc());
 
```
    Scala Example:
```
 tab.orderBy($"name".desc)
 
```
    For unbounded tables, this operation requires a sorting on a time attribute or a subsequent fetch operation.
    Specified by:
    
    orderBy in interface Table
  - offset
```
public Table offset(int offset)
```
    Description copied from interface: Table
    Limits a (possibly sorted) result from an offset position.
    This method can be combined with a preceding Table.orderBy(Expression...) call for a deterministic order and a subsequent Table.fetch(int) call to return n rows after skipping the first o rows.
```
 // skips the first 3 rows and returns all following rows.
 tab.orderBy($("name").desc()).offset(3);
 // skips the first 10 rows and returns the next 5 rows.
 tab.orderBy($("name").desc()).offset(10).fetch(5);
 
```
    For unbounded tables, this operation requires a subsequent fetch operation.
    Specified by:
    
    offset in interface Table
    
    Parameters:
    
    offset - number of records to skip
  - fetch
```
public Table fetch(int fetch)
```
    Description copied from interface: Table
    Limits a (possibly sorted) result to the first n rows.
    This method can be combined with a preceding Table.orderBy(Expression...) call for a deterministic order and Table.offset(int) call to return n rows after skipping the first o rows.
```
 // returns the first 3 records.
 tab.orderBy($("name").desc()).fetch(3);
 // skips the first 10 rows and returns the next 5 rows.
 tab.orderBy($("name").desc()).offset(10).fetch(5);
 
```
    Specified by:
    
    fetch in interface Table
    
    Parameters:
    
    fetch - the number of records to return. Fetch must be >= 0.
  - window
```
public GroupWindowedTable window(GroupWindow groupWindow)
```
    Description copied from interface: Table
    
    Groups the records of a table by assigning them to windows defined by a time or row interval.
    For streaming tables of infinite size, grouping into windows is required to define finite groups on which group-based aggregates can be computed.
    For batch tables of finite size, windowing essentially provides shortcuts for time-based groupBy.
    Note: Computing windowed aggregates on a streaming table is only a parallel operation if additional grouping attributes are added to the groupBy(...) clause. If the groupBy(...) only references a GroupWindow alias, the streamed table will be processed by a single task, i.e., with parallelism 1.
    
    Specified by:
    
    window in interface Table
    
    Parameters:
    
    groupWindow - groupWindow that specifies how elements are grouped.
    
    Returns:
    
    A windowed table.
  - window
```
public OverWindowedTable window(OverWindow... overWindows)
```
    Description copied from interface: Table
    Defines over-windows on the records of a table.
    An over-window defines for each record an interval of records over which aggregation functions can be computed.
    Java Example:
```
 table
   .window(Over.partitionBy($("c")).orderBy($("rowTime")).preceding(lit(10).seconds()).as("ow")
   .select($("c"), $("b").count().over($("ow")), $("e").sum().over($("ow")));
 
```
    Scala Example:
```
 table
   .window(Over partitionBy $"c" orderBy $"rowTime" preceding 10.seconds as "ow")
   .select($"c", $"b".count over $"ow", $"e".sum over $"ow")
 
```
    Note: Computing over window aggregates on a streaming table is only a parallel operation if the window is partitioned. Otherwise, the whole stream will be processed by a single task, i.e., with parallelism 1.
    Note: Over-windows for batch tables are currently not supported.
    Specified by:
    
    window in interface Table
    
    Parameters:
    
    overWindows - windows that specify the record interval over which aggregations are computed.
    
    Returns:
    
    An OverWindowedTable to specify the aggregations.
  - addColumns
```
public Table addColumns(org.apache.flink.table.expressions.Expression... fields)
```
    Description copied from interface: Table
    Adds additional columns. Similar to a SQL SELECT statement. The field expressions can contain complex expressions, but can not contain aggregations. It will throw an exception if the added fields already exist.
    Java Example:
```
 tab.addColumns(
    $("a").plus(1).as("a1"),
    concat($("b"), "sunny").as("b1")
 );
 
```
    Scala Example:
```
 tab.addColumns(
    $"a" + 1 as "a1",
    concat($"b", "sunny") as "b1"
 )
 
```
    Specified by:
    
    addColumns in interface Table
  - addOrReplaceColumns
```
public Table addOrReplaceColumns(org.apache.flink.table.expressions.Expression... fields)
```
    Description copied from interface: Table
    Adds additional columns. Similar to a SQL SELECT statement. The field expressions can contain complex expressions, but can not contain aggregations. Existing fields will be replaced. If the added fields have duplicate field name, then the last one is used.
    Java Example:
```
 tab.addOrReplaceColumns(
    $("a").plus(1).as("a1"),
    concat($("b"), "sunny").as("b1")
 );
 
```
    Scala Example:
```
 tab.addOrReplaceColumns(
    $"a" + 1 as "a1",
    concat($"b", "sunny") as "b1"
 )
 
```
    Specified by:
    
    addOrReplaceColumns in interface Table
  - renameColumns
```
public Table renameColumns(org.apache.flink.table.expressions.Expression... fields)
```
    Description copied from interface: Table
    Renames existing columns. Similar to a field alias statement. The field expressions should be alias expressions, and only the existing fields can be renamed.
    Java Example:
```
 tab.renameColumns(
    $("a").as("a1"),
    $("b").as("b1")
 );
 
```
    Scala Example:
```
 tab.renameColumns(
    $"a" as "a1",
    $"b" as "b1"
 )
 
```
    Specified by:
    
    renameColumns in interface Table
  - dropColumns
```
public Table dropColumns(org.apache.flink.table.expressions.Expression... fields)
```
    Description copied from interface: Table
    Drops existing columns. The field expressions should be field reference expressions.
    Java Example:
```
 tab.dropColumns($("a"), $("b"));
 
```
    Scala Example:
```
 tab.dropColumns($"a", $"b")
 
```
    Specified by:
    
    dropColumns in interface Table
  - map
```
public Table map(org.apache.flink.table.expressions.Expression mapFunction)
```
    Description copied from interface: Table
    Performs a map operation with an user-defined scalar function or built-in scalar function. The output will be flattened if the output type is a composite type.
    Java Example:
```
 tab.map(call(MyMapFunction.class, $("c")))
 
```
    Scala Example:
```
 val func = new MyMapFunction()
 tab.map(func($"c"))
 
```
    Specified by:
    
    map in interface Table
  - flatMap
```
public Table flatMap(org.apache.flink.table.expressions.Expression tableFunction)
```
    Description copied from interface: Table
    Performs a flatMap operation with an user-defined table function or built-in table function. The output will be flattened if the output type is a composite type.
    Java Example:
```
 tab.flatMap(call(MyFlatMapFunction.class, $("c")))
 
```
    Scala Example:
```
 val func = new MyFlatMapFunction()
 tab.flatMap(func($"c"))
 
```
    Specified by:
    
    flatMap in interface Table
  - aggregate
```
public AggregatedTable aggregate(org.apache.flink.table.expressions.Expression aggregateFunction)
```
    Description copied from interface: Table
    Performs a global aggregate operation with an aggregate function. You have to close the Table.aggregate(Expression) with a select statement. The output will be flattened if the output type is a composite type.
    Java Example:
```
 tab.aggregate(call(MyAggregateFunction.class, $("a"), $("b")).as("f0", "f1", "f2"))
   .select($("f0"), $("f1"));
 
```
    Scala Example:
```
 val aggFunc = new MyAggregateFunction
 table.aggregate(aggFunc($"a", $"b") as ("f0", "f1", "f2"))
   .select($"f0", $"f1")
 
```
    Specified by:
    
    aggregate in interface Table
  - flatAggregate
```
public FlatAggregateTable flatAggregate(org.apache.flink.table.expressions.Expression tableAggregateFunction)
```
    Description copied from interface: Table
    Perform a global flatAggregate without groupBy. FlatAggregate takes a TableAggregateFunction which returns multiple rows. Use a selection after the flatAggregate.
    Java Example:
```
 tab.flatAggregate(call(MyTableAggregateFunction.class, $("a"), $("b")).as("x", "y", "z"))
   .select($("x"), $("y"), $("z"));
 
```
    Scala Example:
```
 val tableAggFunc: TableAggregateFunction = new MyTableAggregateFunction
 tab.flatAggregate(tableAggFunc($"a", $"b") as ("x", "y", "z"))
   .select($"x", $"y", $"z")
 
```
    Specified by:
    
    flatAggregate in interface Table
  - insertInto
```
public TablePipeline insertInto(String tablePath)
```
    Description copied from interface: Table
    Declares that the pipeline defined by the given Table object should be written to a table (backed by a DynamicTableSink) that was registered under the specified path.
    See the documentation of TableEnvironment.useDatabase(String) or TableEnvironment.useCatalog(String) for the rules on the path resolution.
    Example:
```
 Table table = tableEnv.sqlQuery("SELECT * FROM MyTable");
 TablePipeline tablePipeline = table.insertInto("MySinkTable");
 TableResult tableResult = tablePipeline.execute();
 tableResult.await();
 
```
    One can execute the returned TablePipeline using Executable.execute(), or compile it to a CompiledPlan using Compilable.compilePlan().
    If multiple pipelines should insert data into one or more sink tables as part of a single execution, use a StatementSet (see TableEnvironment.createStatementSet()).
    Specified by:
    
    insertInto in interface Table
    
    Parameters:
    
    tablePath - The path of the registered table (backed by a DynamicTableSink).
    
    Returns:
    
    The complete pipeline from one or more source tables to a sink table.
  - insertInto
```
public TablePipeline insertInto(String tablePath,
                                boolean overwrite)
```
    Description copied from interface: Table
    Declares that the pipeline defined by the given Table object should be written to a table (backed by a DynamicTableSink) that was registered under the specified path.
    See the documentation of TableEnvironment.useDatabase(String) or TableEnvironment.useCatalog(String) for the rules on the path resolution.
    Example:
```
 Table table = tableEnv.sqlQuery("SELECT * FROM MyTable");
 TablePipeline tablePipeline = table.insertInto("MySinkTable", true);
 TableResult tableResult = tablePipeline.execute();
 tableResult.await();
 
```
    One can execute the returned TablePipeline using Executable.execute(), or compile it to a CompiledPlan using Compilable.compilePlan().
    If multiple pipelines should insert data into one or more sink tables as part of a single execution, use a StatementSet (see TableEnvironment.createStatementSet()).
    Specified by:
    
    insertInto in interface Table
    
    Parameters:
    
    tablePath - The path of the registered table (backed by a DynamicTableSink).
    
    overwrite - Indicates whether existing data should be overwritten.
    
    Returns:
    
    The complete pipeline from one or more source tables to a sink table.
  - insertInto
```
public TablePipeline insertInto(TableDescriptor descriptor)
```
    Description copied from interface: Table
    Declares that the pipeline defined by the given Table object should be written to a table (backed by a DynamicTableSink) expressed via the given TableDescriptor.
    The descriptor won't be registered in the catalog, but it will be propagated directly in the operation tree. Note that calling this method multiple times, even with the same descriptor, results in multiple sink tables instances.
    This method allows to declare a Schema for the sink descriptor. The declaration is similar to a CREATE TABLE DDL in SQL and allows to:
    - overwrite automatically derived columns with a custom DataType
    - add metadata columns next to the physical columns
    - declare a primary key
    It is possible to declare a schema without physical/regular columns. In this case, those columns will be automatically derived and implicitly put at the beginning of the schema declaration.
    Examples:
```
 Schema schema = Schema.newBuilder()
   .column("f0", DataTypes.STRING())
   .build();

 Table table = tableEnv.from(TableDescriptor.forConnector("datagen")
   .schema(schema)
   .build());

 table.insertInto(TableDescriptor.forConnector("blackhole")
   .schema(schema)
   .build());
 
```
    One can execute the returned TablePipeline using Executable.execute(), or compile it to a CompiledPlan using Compilable.compilePlan().
    If multiple pipelines should insert data into one or more sink tables as part of a single execution, use a StatementSet (see TableEnvironment.createStatementSet()).
    Specified by:
    
    insertInto in interface Table
    
    Parameters:
    
    descriptor - Descriptor describing the sink table into which data should be inserted.
    
    Returns:
    
    The complete pipeline from one or more source tables to a sink table.
  - insertInto
```
public TablePipeline insertInto(TableDescriptor descriptor,
                                boolean overwrite)
```
    Description copied from interface: Table
    Declares that the pipeline defined by the given Table object should be written to a table (backed by a DynamicTableSink) expressed via the given TableDescriptor.
    The descriptor won't be registered in the catalog, but it will be propagated directly in the operation tree. Note that calling this method multiple times, even with the same descriptor, results in multiple sink tables being registered.
    This method allows to declare a Schema for the sink descriptor. The declaration is similar to a CREATE TABLE DDL in SQL and allows to:
    - overwrite automatically derived columns with a custom DataType
    - add metadata columns next to the physical columns
    - declare a primary key
    It is possible to declare a schema without physical/regular columns. In this case, those columns will be automatically derived and implicitly put at the beginning of the schema declaration.
    Examples:
```
 Schema schema = Schema.newBuilder()
   .column("f0", DataTypes.STRING())
   .build();

 Table table = tableEnv.from(TableDescriptor.forConnector("datagen")
   .schema(schema)
   .build());

 table.insertInto(TableDescriptor.forConnector("blackhole")
   .schema(schema)
   .build(), true);
 
```
    One can execute the returned TablePipeline using Executable.execute(), or compile it to a CompiledPlan using Compilable.compilePlan().
    If multiple pipelines should insert data into one or more sink tables as part of a single execution, use a StatementSet (see TableEnvironment.createStatementSet()).
    Specified by:
    
    insertInto in interface Table
    
    Parameters:
    
    descriptor - Descriptor describing the sink table into which data should be inserted.
    
    overwrite - Indicates whether existing data should be overwritten.
    
    Returns:
    
    The complete pipeline from one or more source tables to a sink table.
  - execute
```
public TableResult execute()
```
    Description copied from interface: Executable
    
    Executes this object.
    By default, all DML operations are executed asynchronously. Use TableResult.await() or TableResult.getJobClient() to monitor the execution. Set TableConfigOptions.TABLE_DML_SYNC for always synchronous execution.
    
    Specified by:
    
    execute in interface Executable
  - explain
```
public String explain(ExplainDetail... extraDetails)
```
    Description copied from interface: Explainable
    
    Returns the AST of this object and the execution plan to compute the result of the given statement.
    
    Specified by:
    
    explain in interface Explainable<Table>
    
    Parameters:
    
    extraDetails - The extra explain details which the result of this method should include, e.g. estimated cost, changelog mode for streaming
    
    Returns:
    
    AST and the execution plan.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class TableImpl

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface org.apache.flink.table.api.Table

Methods inherited from interface org.apache.flink.table.api.Explainable

Method Detail

getTableEnvironment

createTable

getResolvedSchema

printSchema

getQueryOperation

select

createTemporalTableFunction

as

as

filter

where

groupBy

distinct

join

join

leftOuterJoin

leftOuterJoin

rightOuterJoin

fullOuterJoin

joinLateral

joinLateral

leftOuterJoinLateral

leftOuterJoinLateral

minus

minusAll

union

unionAll

intersect

intersectAll

orderBy

offset

fetch

window

window

addColumns

addOrReplaceColumns

renameColumns

dropColumns

map

flatMap

aggregate

flatAggregate

insertInto

insertInto

insertInto

insertInto

execute

explain

toString