2 Answers
- Newest
- Most votes
- Most comments
1
Hi stanleyhunju,
There is no defined or specific list of conditions for similar queries. In your example, query 3 is considered similar to query 1 since they are searching for the same results or dataset but in a slightly different way. If you first execute query 1 and then query 3, query 3 in this case will use the result cache.
I usually use the system view SVL_COMPILE to analyze the compilation phase of queries.
Regards, Ziad
1
Redshift query engine can rewrite the queries before execution. It will see that query 3 is similar
to query 1 and can be rewritten to match it. Thus it can still leverage the compile cache for query 3.
answered 6 months ago
Relevant content
- asked 2 months ago
- Accepted Answerasked 8 months ago
- asked 6 years ago
- AWS OFFICIALUpdated 3 months ago
- AWS OFFICIALUpdated a year ago
- AWS OFFICIALUpdated 2 months ago
- AWS OFFICIALUpdated 2 years ago
Ah, I got it, thanks a lot @MilindOke