Defining Google BigQuery Functions
The following properties are applicable to a Google BigQuery Function object.
Tab |
Property |
Description |
Additional Information |
---|---|---|---|
|
Name |
Specifies the name of the function |
|
Dataset | Specifies the dataset to which the function belongs | ||
Project | Specifies the project to which the dataset belongs | ||
If Not Exists | Specifies that if the function already exists, no exception is thrown, and no action happens | ||
Use Replace Syntax | Specifies whether the REPLACE syntax is used | Selecting this option replaces the syntax with the new DDL that is generated during Forward Engineering | |
|
Aggregate |
Specifies whether the function is an aggregate |
Ensure that the Function Type is not set to Table or Remote when you use the Aggregate function. The aggregate function now supports SQL and JavaScript user defined functions. |
Generate | Specifies whether a DDL statement is generated for the function during forward engineering | ||
General
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User Defined Context | Specifies the user defined contexts of the remote function. These contain a JSON object with the key-value pair. |
|
Function Type | Specifies the type of function |
Temp: Indicates a temporary function Table: Indicates a table-valued function Remote: Indicates a remote function |
|
Language | Specifies the language in which the function is defined | Available when Function Type is set to Temp | |
Is Deterministic | Specifies whether the function always returns the same result when it is passed the same arguments |
Available when Function Type is set to Temp. True: Indicates that the function always returns the same result when passed the same arguments, and therefore is cacheable False: Indicates that the function does not always return the same result when passed the same arguments, and therefore is not cacheable |
|
Return Data Type | Specifies the data type of the result that the function returns | Available when Function Type is set to Remote | |
Connection Name | Specifies the external connection name for the remote function | Available when Function Type is set to Remote | |
Function Body | Specifies the function expression | ||
Library | Specifies an array of JavaScript libraries to include in the function definition | Available when Function Type is set to Temp | |
Endpoint |
Specifies the endpoint URL to access the remote function |
Available when Function Type is set to Remote |
|
Max Batching Rows |
Specifies the maximum number of rows should be batched for a HTTP request to avoid function time out |
Available when Function Type is set to Remote |
|
Parameters | Parameters | Specifies name of parameters | |
Physical Data Type | Specifies the data type of parameters | ||
Not Aggregate |
Specifies that the parameter is not aggregate |
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Return Table Columns | Return Table Columns | Specifies the schema of table columns that the function returns | |
Physical Data Type | Specifies the data type of table columns that the function returns | ||
Code | Specifies the template code of the stored procedure that can include SQL statements and macros | ||
Expanded | Expanded Code | Specifies the expanded code of function |
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