- Releases Notes and Announcements
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- SQL Developer Guide
- Python Developer Guide
- ETL Developer Guide
- FAQ
- Contact Us
- Releases Notes and Announcements
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- SQL Developer Guide
- Python Developer Guide
- ETL Developer Guide
- FAQ
- Contact Us
This section introduces the built-in operators and functions of Stream Compute Service. Based on open-source Flink functions, Stream Compute Service has supplemented and optimized some functions. For more information, see Comparison with Flink Built-in Functions.
Function naming conventions are described as follows:
{ } means an optional parameter and any option can be used. For example, {BOTH|LEADING|TRAILING} means that you can leave it blank (use the default behavior), or choose any one of BOTH, LEADING, or TRAILING. The feature varies depending on the option.[ ] means an optional parameter, and * means it can be repeated zero or more times. For example, [, value]* means there can be zero or more value following it. This is often used to represent an uncertain number of parameters, such as value, value, value ... value.A string consisting of lowercase letters represents a variable, for example, value1, value, boolean, or numeric.
Uppercase letters (such as IS NULL) or symbols (such as =, <) represent operators or built-in functions.
Categories of built-in functions:
Yes
No
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