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Iterating a cursor or calling fetchone() in a loop is 100x+ slower than fetchall() (affects SQLAlchemy) (#981) #3476

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Iterating a cursor or calling fetchone() in a loop is 100x+ slower than fetchall() (affects SQLAlchemy) (#981)

Iterating a cursor or calling fetchone() in a loop is 100x+ slower than fetchall() (affects SQLAlchemy) (#981) #3476

Run time

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Job Run time
check-types (3.11)
22s
Unit Tests + Kernel (Python 3.10)
2m 50s
check-linting (3.11)
18s
Unit Tests + Kernel (Python 3.13)
3m 3s
Unit Tests (Python 3.11, default deps)
2m 7s
check-types (3.14)
18s
check-linting (3.14)
18s
check-linting (3.10)
18s
check-types (3.12)
22s
Unit Tests + PyArrow (Python 3.10, min deps)
3m 7s
Unit Tests + PyArrow (Python 3.11, default deps)
2m 40s
Unit Tests + Kernel (Python 3.11)
2m 37s
Unit Tests + Kernel (Python 3.14)
2m 57s
check-linting (3.12)
22s
check-types (3.13)
22s
Unit Tests + PyArrow (Python 3.10, default deps)
2m 52s
Unit Tests + PyArrow (Python 3.13, default deps)
2m 47s
Unit Tests + Kernel (Python 3.12)
2m 54s
Unit Tests + PyArrow (Python 3.14, default deps)
2m 41s
check-types (3.10)
18s
Unit Tests + PyArrow (Python 3.11, min deps)
2m 52s
Unit Tests (Python 3.14, min deps)
2m 10s
check-linting (3.13)
22s
Unit Tests (Python 3.12, default deps)
2m 13s
Unit Tests (Python 3.13, default deps)
2m 13s
Unit Tests (Python 3.10, default deps)
2m 11s
Unit Tests + PyArrow (Python 3.12, default deps)
2m 54s
Unit Tests (Python 3.11, min deps)
2m 8s
Unit Tests (Python 3.10, min deps)
2m 8s
Unit Tests + PyArrow (Python 3.14, min deps)
3m 15s
Unit Tests (Python 3.14, default deps)
2m 13s
58m 12s