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sqlite-parquet-vtable
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Avoid row filter check when no constraints 

The function call overhead is expensive!

This makes count(*) on the census data 175ms instead
of 225ms, while not significantly impacting other use cases.
This commit is contained in:
Colin Dellow 2018-06-24 14:51:54 -04:00
parent 84a22e6e77
commit b774973852
1 changed files with 1 additions and 1 deletions
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2
parquet/parquet_cursor.cc
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@ -706,7 +706,7 @@ start:
rowsLeftInRowGroup--; rowsLeftInRowGroup--;
rowId++; rowId++;
if(!currentRowSatisfiesFilter()) if(constraints.size() > 0 && !currentRowSatisfiesFilter())
goto start; goto start;
} }