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Posted to issues@ignite.apache.org by "Sergi Vladykin (JIRA)" <ji...@apache.org> on 2016/05/18 20:18:13 UTC
[jira] [Created] (IGNITE-3171) Support column selectivity
calculation for SQL
Sergi Vladykin created IGNITE-3171:
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Summary: Support column selectivity calculation for SQL
Key: IGNITE-3171
URL: https://issues.apache.org/jira/browse/IGNITE-3171
Project: Ignite
Issue Type: Improvement
Reporter: Sergi Vladykin
Need to support ANALYZE command. http://h2database.com/html/grammar.html#analyze
Currently H2 explicitly ignores external table engines (don't see any reasons why). Probably we have to fix H2 by adding method Table.canAnalyze() and use it in that check.
Also when IGNITE-1232 will be merged we'll need to propagate this statistics to clients.
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