Realtime Compute for Apache Flink:Referensi Flink SQL

Operasi

Dokumen

Keyword

Keywords

Create a data view

Create a data view

DML data manipulation statements (INSERT INTO)

• INSERT INTO

• CREATE TABLE AS (CTAS) statement

• CREATE DATABASE AS (CDAS) statement

DQL data query statements

• Queries

• Dual-stream JOIN statements

• Lookup join

• Interval join

• Complex event processing (CEP)

Window functions

• Overview

• Tumbling windows

• Sliding windows

• Session windows

• OVER

Built-in functions

• Supported functions

• Scalar functions

• Table-valued functions

• Aggregate functions

User-defined functions

Java

• Overview

• Java UDSFs

• User-defined aggregate functions (UDAFs)

• Java UDTFs

Python

• Overview

• User-defined scalar functions (UDSFs)

• User-defined aggregate functions (UDAFs)

• User-defined table-valued functions (UDTFs)