## Syntax
```mermaid
%%{init: {
'theme': 'base',
'flowchart': { 'padding': '7', 'nodeSpacing': '20', 'rankSpacing': '20' },
'themeVariables': {
'fontSize': '11px',
'fontFamily': 'Arial'
}
}}%%
flowchart LR
maxAggregateFunction_start((START))
maxAggregateFunction_start --> maxAggregateFunction_0_0[MAX]:::quoted
maxAggregateFunction_0_0 --> maxAggregateFunction_0_1["("]:::quoted
maxAggregateFunction_0_1 --> maxAggregateFunction_0_2[<a href="Invantive UniversalSQL/Grammar/Expression" class="internal-link">expression</a>]
maxAggregateFunction_0_2 --> maxAggregateFunction_0_3[")"]:::quoted
maxAggregateFunction_0_3 --> maxAggregateFunction_end((END))
```
## Purpose
Group function to find the maximum value from a group of numerical values or text values.