Konstantin Orlov created IGNITE-15833:
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Summary: Provide interfaces for SQL Extension API
Key: IGNITE-15833
URL: https://issues.apache.org/jira/browse/IGNITE-15833
Project: Ignite
Issue Type: Sub-task
Reporter: Konstantin Orlov
During this task we need to provide minimal yet sufficient interfaces to make
extension possible. Followed aspects should be covered:
# Interface of the plugin (draft could be found in parent ticket)
# Interface to implement by relational nodes. Looks like we have to use
IgniteRel here, but it comes at cost of lost validation: IgniteConvention uses
this interface to validate the convention is set for proper rel. Need to think
about this.
# Interface for external table (IgniteExternalTable). It could be reduced
IgniteTable.
# Interface of the schema. In the prototype the
org.apache.calcite.schema.SchemaPlus is used, but it doesn't look as a good
decision.
# Currently TableDescriptor contains link to TableImpl and methods to convert
from tuple to row and vice versa, thus some refactoring is required
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