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`all()`, `get()` and `iterate()` built each row with the `Object::New()` overload that takes names and values. That overload always returns a dictionary-mode object, so no two rows shared a map and every property read was a hash lookup. Build rows from a `DictionaryTemplate` cached on the statement in place of the column names, invalidated on re-prepare. Rows keep their null prototype. Statements whose column names a template cannot express (array indices, duplicates, non-ASCII names, which the template interns as Latin-1) or with more than 64 columns keep the previous path. Add a benchmark that reads every column of each row, since the existing ones only measure building rows. Fixes: nodejs#65799 Assisted-by: Claude Signed-off-by: Guilherme Araújo <arauujogui@gmail.com>
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all(),get()anditerate()built each row with theObject::New()overload that takes names and values. That overload always returns a dictionary-mode object, so no two rows shared a map and every property read was a hash lookup.Rows are now built from a
DictionaryTemplatecached on the statement and invalidated on re-prepare. Rows keep their null prototype. Statements whose column names a template can't express (array indices, duplicates, non-ASCII names, which the template interns as Latin-1) or with more than 64 columns keep the previous path.Adds
benchmark/sqlite/sqlite-prepare-select-read.js, which reads every column of each row, since the existing benchmarks only measure building rows.Fixes: #65799