Window Functions Aggregate Functions Ranking Functions Value Functions Window Functions Window functions perform calculations across rows of the query result. They run after...

Impala Analytic Functions OVER Clause Window Clause AVG Function - Analytic Context COUNT Function - Analytic Context CUME_DIST Function (Impala 2.3 or higher only) DENSE_RANK...

Impala Bit Functions Impala Bit Functions Bit manipulation functions perform bitwise operations involved in scientific processing or computer science algorithms. For example, t...

SHOW FUNCTIONS 摘要 说明 SHOW FUNCTIONS 摘要 SHOW FUNCTIONS [ LIKE pattern [ ESCAPE 'escape_character' ] ] 说明 列出所有可以在查询中使用的函数，LIKE 子句可用于限制函数名称列表。 注意 如果需要列出外部函数，...

SQL Functions Nesting function calls SQL Functions SQL functions, like COUNT() or SUM() , can be expressed using the fn() helper: # Get all users and the number of tweets ...

Graph Functions Definition of examples Get vertices from edges. Get vertex from of an edge Get vertex to of an edge _neighbors _commonNeighbors _countCommonNeighbors _common...

Overview Getting started API Deploying functions Processing guarantees State Storage Metrics Functions Worker Window Functions: Context

SHOW FUNCTIONS description Syntax Parameters example keyword SHOW FUNCTIONS description Syntax SHOW [ FULL ] [ BUILTIN ] FUNCTIONS [ IN | FROM db ] [ LIKE 'fun...

Mapping functions over data structures Mapping functions over data structures Map allows you to work over one or more data sets, appying the function to each element of each ...

Pure functions Note::Write a pure function that adds two numbers together ? An example with map Pure functions A function is considered pure if does not side effects or is af...