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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