Vladimir Ozerov created IGNITE-6022:
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Summary: SQL: add native batch execution support for DML statements
Key: IGNITE-6022
URL: https://issues.apache.org/jira/browse/IGNITE-6022
Project: Ignite
Issue Type: Bug
Components: sql
Affects Versions: 2.1
Reporter: Vladimir Ozerov
Fix For: 2.2
We have batch execution support for JDBC and ODBC drivers. This decreases
number of network hops. However, we do not have any batch execution support on
the server side. It means that for batch of N similar statements, every
statement will go through the whole execution chain - parsing, splitting,
communication with servers. And while parsing and splitting might be avoided
with help of statement cache, the most heavy part - network communication - is
still there.
We need to investigate how to optimize the flow for batch updates. Possible
improvements:
1) Execute statements with certain degree of parallelism;
2) Send several query execution requests to the server at once;
3) Ensure that caches are used properly for batching - we should not parse the
same request multiple times.
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