Macros
Macros are shortcuts for those using the query language, to make common query patterns much faster to write.
The most common macros are A, P and R, which are shortcuts for the ASSET, PROPERTY and RELATIONSHIP commands, respectively.
They are simple regular expression replacements - before AQL processes your script, they are converted to their 'expanded' format.
For example, the script A('TE101') P('Temperature') POINTS expands to 'TE101' ASSET 'Temperature' PROPERTY POINTS before it's executed.