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Add initial QuestDB support with simple SELECT generator (Fixes #457) by Swastik092 · Pull Request #1277 · sqlancer/sqlancer

This PR adds initial support for QuestDB in SQLancer.

Changes included:

  • Created QuestDBQueryGenerator.java to generate simple SELECT queries.
  • Updated QuestDBProvider.java to use the new generator.
  • Ensured queries are executed against a running QuestDB instance.
  • Limited multi-threading (--num-threads 1) for stability during testing.

Currently, only basic SELECT queries are supported. INSERT, DELETE, and more complex queries will be added in future iterations.

This addresses Issue #457 and lays the foundation for full QuestDB testing support.