https://learninghub.kx.com/forums/topic/for-hdb-query-why-is-it-fast-when-including-where-datedate
when I query HDB, it is always faster using
date>$date$?
$date$ could be .z.d-10000, which is much larger than my earliest date in KDB.
Hi renbright -
There are some posts showing how to embed code which will make your question more clear:
- Adding inline code to your questions & messages
- Creating q code block with syntax highlighting in a message
The second of these queries is faster because it reads less data:
//Retrieves data from all dates select from table //Retrieves only the last 5 days of data select from table where date>(.z.d-5)