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- PEG Parser 9414
- New Starting with DuckDB 2.0, the PEG parser is the default parser. In earlier versions it was an experimental, opt-in feature enabled with enable_peg_parser() , which is no longer required or available. DuckDB uses a parser based on PEG (
...command line client. DuckDB 1.5 shipped a complete but experimental version, and DuckDB 2.0 made it the default. Switching parsers does not change the SQL dialect. DuckDB 2.0 replaced the parser implementation and rewrote its grammar, but the dialect it...SET enable_legacy_parser = true; The legacy parser is intended as a bridge solution, for example to check a query on both parsers and determine whether a given behavior is tied to the parser or transformer rather than to downstream code. It provides a...Preview of DuckDB v2.0” blog post “DuckDB v2.0: Your Database Deserves a Better Parser” blog post “Runtime-Extensible SQL Parsers Using PEG” blog post “Runtime-Extensible Parsers” (CIDR 2025 paper) by Hannes Mühleisen and Mark Raasveldt... - https://man.mtool.work/duckdb/2.0/sql/peg_parser.html
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