Matvei Zamiatin created SPARK-58866:
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Summary: Add expression-level entry points to optimizer rules for
the single-pass analyzer
Key: SPARK-58866
URL: https://issues.apache.org/jira/browse/SPARK-58866
Project: Spark
Issue Type: Task
Components: Optimizer
Affects Versions: 4.4.0
Reporter: Matvei Zamiatin
The single-pass analyzer needs to run several optimizer rules on individual,
freshly-resolved expression trees rather than on a whole LogicalPlan. For
example, resolving a procedure CALL requires folding and rewriting its argument
expressions (constant folding, With inlining, RuntimeReplaceable expansion,
current date/time and current catalog/database substitution, special datetime
values) before they are used.
Today these rules only expose plan-level apply(plan: LogicalPlan) entry points.
This ticket refactors them to also expose expression-level entry points by
extracting the shared rewrite logic into partial functions, with no behavior
change to the existing plan-level apply.
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