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Iterating a cursor or calling fetchone() in a loop is 100x+ slower than fetchall() (affects SQLAlchemy) (#981) #3478

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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) #3478

Run time

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Job Run time
check-types (3.13)
23s
check-types (3.11)
19s
Unit Tests + PyArrow (Python 3.10, default deps)
2m 43s
Unit Tests + Kernel (Python 3.13)
2m 51s
Unit Tests + PyArrow (Python 3.11, min deps)
3m 5s
Unit Tests + Kernel (Python 3.10)
2m 43s
check-linting (3.10)
14s
check-types (3.14)
19s
Unit Tests + PyArrow (Python 3.11, default deps)
2m 49s
Unit Tests + PyArrow (Python 3.10, min deps)
2m 51s
Unit Tests (Python 3.10, min deps)
2m 10s
check-linting (3.11)
20s
check-linting (3.14)
20s
Unit Tests (Python 3.11, min deps)
2m 6s
Unit Tests (Python 3.13, default deps)
2m 15s
Unit Tests + Kernel (Python 3.11)
2m 45s
Unit Tests + PyArrow (Python 3.13, default deps)
2m 54s
Unit Tests (Python 3.14, default deps)
2m 15s
Unit Tests + Kernel (Python 3.12)
3m 11s
Unit Tests (Python 3.10, default deps)
2m 6s
Unit Tests (Python 3.14, min deps)
2m 11s
Unit Tests (Python 3.12, default deps)
2m 11s
Unit Tests + PyArrow (Python 3.14, min deps)
2m 44s
Unit Tests + PyArrow (Python 3.14, default deps)
2m 58s
check-linting (3.12)
20s
check-types (3.10)
23s
Unit Tests (Python 3.11, default deps)
2m 7s
Unit Tests + PyArrow (Python 3.12, default deps)
2m 39s
Unit Tests + Kernel (Python 3.14)
2m 58s
check-linting (3.13)
20s
check-types (3.12)
23s
57m 53s