[Pre-GSoC] Translation of Additional SQL Queries to FunSQL and Dataset Creation

[ParamThakkar123]

Description

Curate additional SQL queries and translate them to FunSQL representations.

Tasks

• Curate a diverse set of SQL queries covering joins, aggregations, subqueries, and filters
• Translate the SQL queries into equivalent FunSQL representations
• Validate correctness via execution-based checks where possible
• Organize the resulting data into a structured dataset format suitable for training and evaluation
• Upload the dataset to Hugging Face with proper documentation and metadata

This expands the availability of high-quality FunSQL data for evaluation.