Alexey Goncharuk created IGNITE-13667:
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Summary: Add schema columns relocation table to map from user
order to system order
Key: IGNITE-13667
URL: https://issues.apache.org/jira/browse/IGNITE-13667
Project: Ignite
Issue Type: Improvement
Reporter: Alexey Goncharuk
When a schema is defined, the key chunk columns and value chunk columns are
sorted so that fixlen columns go first and varlen columns go second, so the
sorted column order differs from the order of the user-defined columns.
We need to add a simple relocation table which is a permutation of indices
{{[0..n)}}, so that an internal column order for user index {{n}} is
{{relocationTbl[n]}}.
NB: the tuple assembler will still need to access the internal sorted order for
proper tuple assembly.
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