- Type Parameters:
T- The function return type
- All Known Subinterfaces:
AggregateFilterStep<T>,AggregateFunction<T>,ArrayAggOrderByStep<T>,GroupConcatOrderByStep,GroupConcatSeparatorStep,JSONArrayAggNullStep<T>,JSONArrayAggOrderByStep<J>,JSONArrayAggReturningStep<T>,JSONObjectAggNullStep<T>,JSONObjectAggReturningStep<T>,OptionallyOrderedAggregateFunction<T>,QOM.AnyValue<T>,QOM.ArrayAgg<T>,QOM.Avg,QOM.BitAndAgg<T>,QOM.BitNandAgg<T>,QOM.BitNorAgg<T>,QOM.BitOrAgg<T>,QOM.BitXNorAgg<T>,QOM.BitXorAgg<T>,QOM.BoolAnd,QOM.BoolOr,QOM.Collect<T,,A> QOM.Corr,QOM.Count,QOM.CountTable,QOM.CovarPop,QOM.CovarSamp,QOM.JSONArrayAgg<J>,QOM.JSONObjectAgg<J>,QOM.Max<T>,QOM.MaxBy<T>,QOM.Median,QOM.Min<T>,QOM.MinBy<T>,QOM.Mode<T>,QOM.MultisetAgg<R>,QOM.Product,QOM.RatioToReport,QOM.RegrAvgX,QOM.RegrAvgY,QOM.RegrCount,QOM.RegrIntercept,QOM.RegrR2,QOM.RegrSlope,QOM.RegrSxx,QOM.RegrSxy,QOM.RegrSyy,QOM.StddevPop,QOM.StddevSamp,QOM.Sum,QOM.VarPop,QOM.VarSamp,QOM.XMLAgg,WindowBeforeOverStep<T>,WindowFromFirstLastStep<T>,WindowIgnoreNullsStep<T>,XMLAggOrderByStep<T>
public interface WindowOverStep<T>
This type is used for the window function DSL API.
Example:
field.firstValue()
.ignoreNulls()
.over()
.partitionBy(AUTHOR_ID)
.orderBy(PUBLISHED_IN.asc())
.rowsBetweenUnboundedPreceding()
.andUnboundedFollowing()
Unlike in WindowBeforeOverStep, OVER() is a mandatory
clause.
- Author:
- Lukas Eder
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Method Summary
Modifier and TypeMethodDescription@NotNull WindowPartitionByStep<T> over()Turn this aggregate function into a window function.@NotNull WindowFinalStep<T> Turn this aggregate function into a window function referencing a window name.@NotNull WindowFinalStep<T> Turn this aggregate function into a window function referencing a window name.@NotNull WindowFinalStep<T> over(WindowDefinition definition) Turn this aggregate function into a window function referencing a window definition.@NotNull WindowFinalStep<T> over(WindowSpecification specification) Turn this aggregate function into a window function.
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Method Details
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over
@NotNull @Support({AURORA_POSTGRES,BIGQUERY,CLICKHOUSE,COCKROACHDB,CUBRID,DATABRICKS,DB2,DERBY,DUCKDB,EXASOL,FIREBIRD_3_0,H2,HANA,HSQLDB,INFORMIX,MARIADB,MEMSQL,MYSQL_8_0,ORACLE,POSTGRES,REDSHIFT,SNOWFLAKE,SQLDATAWAREHOUSE,SQLITE,SQLSERVER,SYBASE,TERADATA,TRINO,VERTICA,YUGABYTEDB}) @NotNull WindowPartitionByStep<T> over()Turn this aggregate function into a window function.An example:
MAX(id) OVER (PARTITION BY 1) -
over
@NotNull @Support({AURORA_POSTGRES,BIGQUERY,CLICKHOUSE,COCKROACHDB,CUBRID,DATABRICKS,DB2,DUCKDB,EXASOL,FIREBIRD_3_0,H2,HANA,INFORMIX,MARIADB,MEMSQL,MYSQL_8_0,ORACLE,POSTGRES,REDSHIFT,SNOWFLAKE,SQLDATAWAREHOUSE,SQLITE,SQLSERVER,SYBASE,TERADATA,TRINO,VERTICA,YUGABYTEDB}) @NotNull WindowFinalStep<T> over(Name name) Turn this aggregate function into a window function referencing a window name.An example:
MAX(id) OVER my_windowIf the
WINDOWclause is not supported (seeSelectWindowStep.window(WindowDefinition...), then referenced windows will be inlined. -
over
@NotNull @Support({AURORA_POSTGRES,BIGQUERY,CLICKHOUSE,COCKROACHDB,CUBRID,DATABRICKS,DB2,DUCKDB,EXASOL,FIREBIRD_3_0,H2,HANA,INFORMIX,MARIADB,MEMSQL,MYSQL_8_0,ORACLE,POSTGRES,REDSHIFT,SNOWFLAKE,SQLDATAWAREHOUSE,SQLITE,SQLSERVER,SYBASE,TERADATA,TRINO,VERTICA,YUGABYTEDB}) @NotNull WindowFinalStep<T> over(String name) Turn this aggregate function into a window function referencing a window name.An example:
MAX(id) OVER my_windowIf the
WINDOWclause is not supported (seeSelectWindowStep.window(WindowDefinition...), then referenced windows will be inlined. -
over
@NotNull @Support({AURORA_POSTGRES,BIGQUERY,CLICKHOUSE,COCKROACHDB,CUBRID,DATABRICKS,DB2,DUCKDB,EXASOL,FIREBIRD_3_0,H2,HANA,INFORMIX,MARIADB,MEMSQL,MYSQL_8_0,ORACLE,POSTGRES,REDSHIFT,SNOWFLAKE,SQLDATAWAREHOUSE,SQLITE,SQLSERVER,SYBASE,TERADATA,TRINO,VERTICA,YUGABYTEDB}) @NotNull WindowFinalStep<T> over(WindowSpecification specification) Turn this aggregate function into a window function.An example:
MAX(id) OVER (PARTITION BY 1) -
over
@NotNull @Support({AURORA_POSTGRES,BIGQUERY,CLICKHOUSE,COCKROACHDB,CUBRID,DATABRICKS,DB2,DUCKDB,EXASOL,FIREBIRD_3_0,H2,HANA,INFORMIX,MARIADB,MEMSQL,MYSQL_8_0,ORACLE,POSTGRES,REDSHIFT,SNOWFLAKE,SQLDATAWAREHOUSE,SQLITE,SQLSERVER,SYBASE,TERADATA,TRINO,VERTICA,YUGABYTEDB}) @NotNull WindowFinalStep<T> over(WindowDefinition definition) Turn this aggregate function into a window function referencing a window definition.An example:
MAX(id) OVER my_windowIf the
WINDOWclause is not supported (seeSelectWindowStep.window(WindowDefinition...), then referenced windows will be inlined.
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