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Iterating a cursor or calling fetchone() in a loop is 100x+ slower than fetchall() (affects SQLAlchemy) (#981) #3483

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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) #3483

Run time

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Job Run time
check-linting (3.10)
45s
check-types (3.14)
21s
check-types (3.11)
17s
Unit Tests + Kernel (Python 3.14)
2m 48s
check-linting (3.12)
45s
Unit Tests + Kernel (Python 3.10)
2m 41s
Unit Tests + PyArrow (Python 3.10, default deps)
2m 40s
check-linting (3.11)
44s
Unit Tests (Python 3.11, default deps)
2m 7s
Unit Tests + PyArrow (Python 3.10, min deps)
3m 1s
check-types (3.13)
20s
check-linting (3.14)
44s
Unit Tests (Python 3.10, default deps)
2m 10s
check-linting (3.13)
18s
check-types (3.10)
20s
Unit Tests + PyArrow (Python 3.13, default deps)
3m 3s
Unit Tests (Python 3.14, default deps)
2m 14s
Unit Tests + PyArrow (Python 3.14, min deps)
2m 52s
Unit Tests + Kernel (Python 3.11)
2m 38s
Unit Tests + PyArrow (Python 3.12, default deps)
2m 59s
Unit Tests + PyArrow (Python 3.11, min deps)
2m 45s
Unit Tests + Kernel (Python 3.13)
3m 11s
Unit Tests (Python 3.10, min deps)
2m 7s
Unit Tests (Python 3.12, default deps)
2m 11s
check-types (3.12)
20s
Unit Tests + PyArrow (Python 3.14, default deps)
3m 0s
Unit Tests + PyArrow (Python 3.11, default deps)
2m 58s
Unit Tests (Python 3.11, min deps)
2m 6s
Unit Tests + Kernel (Python 3.12)
2m 48s
Unit Tests (Python 3.14, min deps)
2m 20s
Unit Tests (Python 3.13, default deps)
2m 13s
59m 46s