In December 2025, Aleksandr Chernousov enhanced SQL parsing in the apache/spark repository by completing a targeted upgrade for IDENTIFIER() handling within Spark SQL. He replaced incorrect ctx.getText() calls with getIdentifierText(ctx), resolving a parsing blocker and enabling IDENTIFIER() in all required contexts. Aleksandr applied his expertise in parser development, Scala, and SQL to ensure robust implementation, adding focused tests to identifier-clause.sql to validate the changes and prevent regressions. His work improved reliability and compatibility for downstream Spark SQL features, supporting business intelligence and data engineering workloads while maintaining clear commit traceability and collaborating closely with other contributors.