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Iterating a cursor or calling fetchone() in a loop is 100x+ slower than fetchall() (affects SQLAlchemy) (#981) #3448

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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) #3448

Run time

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Job Run time
check-types (3.11)
15s
check-linting (3.10)
17s
check-types (3.10)
16s
Unit Tests + Kernel (Python 3.11)
2m 47s
check-linting (3.12)
17s
check-types (3.12)
17s
Unit Tests + Kernel (Python 3.10)
1d 0h 0m 0s
check-linting (3.13)
58s
check-types (3.13)
17s
check-types (3.14)
19s
Unit Tests (Python 3.10, min deps)
2m 11s
check-linting (3.14)
58s
Unit Tests + Kernel (Python 3.13)
2m 57s
Unit Tests + Kernel (Python 3.14)
2m 41s
Unit Tests (Python 3.11, default deps)
2m 8s
check-linting (3.11)
58s
Unit Tests + PyArrow (Python 3.11, min deps)
2m 40s
Unit Tests (Python 3.14, default deps)
1m 57s
Unit Tests + PyArrow (Python 3.10, min deps)
2m 46s
Unit Tests (Python 3.10, default deps)
1m 57s
Unit Tests + Kernel (Python 3.12)
2m 50s
Unit Tests (Python 3.11, min deps)
1m 59s
Unit Tests (Python 3.12, default deps)
6m 44s
Unit Tests + PyArrow (Python 3.14, min deps)
2m 52s
Unit Tests + PyArrow (Python 3.14, default deps)
2m 41s
Unit Tests + PyArrow (Python 3.10, default deps)
2m 40s
Unit Tests (Python 3.13, default deps)
6m 44s
Unit Tests (Python 3.14, min deps)
6m 44s
Unit Tests + PyArrow (Python 3.12, default deps)
2m 47s
Unit Tests + PyArrow (Python 3.13, default deps)
2m 41s
Unit Tests + PyArrow (Python 3.11, default deps)
2m 38s
1d 1h 8m 16s