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trinodb / trino Public

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Improve performance of LIKE matchers#15999

Merged

martint merged 11 commits into

trinodb:mastertrinodb/trino:masterfrom

martint:like-optimize-nfamartint/trino:like-optimize-nfaCopy head branch name to clipboard

Feb 23, 2023

Conversation Commits11 (11)Checks Files changed

Merged

Improve performance of LIKE matchers#15999
martint merged 11 commits into
trinodb:masterfrom
martint:like-optimize-nfa

Commits

Commits on Feb 15, 2023

Benchmark LIKE pattern compilation
martint
committed
Simplify construction of LIKE matcher NFA
martint
committed
Encapsulate translation of pattern into DFA
martint
committed
Use ordered list instead of map for transitions
martint
committed
Convert NFA to class
martint
committed
Build NFA/DFA with more efficient data structures
martint
committed
Do not create a failed state
martint
committed
Add NFA-based matcher for dynamic LIKE patterns
martint
committed
Construct dense DFA lazily
martint
committed
Simplify parsing and optimization of pattern
martint
committed
Avoid creating intermediate pattern list when constructing matcher
martint
committed

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