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https://issues.apache.org/jira/browse/ASTERIXDB-1556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15408887#comment-15408887
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Michael J. Carey commented on ASTERIXDB-1556:
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Based on theory friend input, and realizing that we actually want our size to
be >= N, the recommendation so far is:
The prime number theorem says that in the range 1...N, there are N/ln N prime
numbers, so roughly the density of prime numbers is 1/ln N. I don't know of any
particularly clever way to do this, but if you start at N and apply a primality
test to N, N+1, N+2,...., then it shouldn't take too long to find one.
> Prefix-based multi-way Fuzzy-join generates an exception.
> ---------------------------------------------------------
>
> Key: ASTERIXDB-1556
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-1556
> Project: Apache AsterixDB
> Issue Type: Bug
> Reporter: Taewoo Kim
> Assignee: Taewoo Kim
> Attachments: 2wayjoin.pdf, 2wayjoin.rtf, 2wayjoinplan.rtf,
> 3wayjoin.pdf, 3wayjoin.rtf, 3wayjoinplan.rtf
>
>
> When we enable prefix-based fuzzy-join and apply the multi-way fuzzy-join ( >
> 2), the system generates an out-of-memory exception.
> Since a fuzzy-join is created using 30-40 lines of AQL codes and this AQL is
> translated into massive number of operators (more than 200 operators in the
> plan for a 3-way fuzzy join), it could generate out-of-memory exception.
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