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Posted to issues@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2019/02/05 15:19:00 UTC
[jira] [Created] (IGNITE-11210) SQL: Introduce common logical
execution plan for all query types
Vladimir Ozerov created IGNITE-11210:
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Summary: SQL: Introduce common logical execution plan for all query types
Key: IGNITE-11210
URL: https://issues.apache.org/jira/browse/IGNITE-11210
Project: Ignite
Issue Type: Task
Components: sql
Reporter: Vladimir Ozerov
At the moment we have a lot of various cached stuff used for different SQL types (prepared statements for local queries, two-step queries for distributed queries, update plan for DML).
What we need instead of having multiple caches is to create common execution plan for every query, which will hold both DML and SELECT stuff. Approximate content of such a plan:
# Two-step plan
# DML plan
# Partition pruning stuff
# May be even cached physical node distribution (for reduce queries) for the given {{AffinityTopologyVersion}}
# Probably {{AffinityTopologyVersion}}
Then we will perform a single plan lookup/build per every query execution. In future we will probably display these plans in SQL views.
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