Konstantin Orlov created IGNITE-26637:
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Summary: Introduce support of scalar expressions
Key: IGNITE-26637
URL: https://issues.apache.org/jira/browse/IGNITE-26637
Project: Ignite
Issue Type: Improvement
Components: sql ai3
Reporter: Konstantin Orlov
Scalar expressions is required to implement column's default expression.
The proposed API is as follow:
{code}
@FunctionalInterface
public interface IgniteScalar<ResultT> {
ResultT get(EvaluationContext context);
}
public interface ExpressionFactory {
/**
* Creates scalar expression.
*
* @param expression String representation of expression to create.
* @param resultType A required type of the result.
* @return A scalar representing the provided expression.
* @param <ResultT> A type of the result.
*/
<ResultT> IgniteScalar<ResultT> scalar(String expression, NativeType
resultType);
}
{code}
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