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Iterating a cursor or calling fetchone() in a loop is 100x+ slower than fetchall() (affects SQLAlchemy) (#981) #3446

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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) #3446

Run time

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Job Run time
check-types (3.13)
20s
Unit Tests + PyArrow (Python 3.11, default deps)
2m 36s
Unit Tests (Python 3.10, min deps)
2m 15s
Unit Tests + Kernel (Python 3.13)
2m 52s
Unit Tests + Kernel (Python 3.14)
2m 56s
check-linting (3.11)
15s
check-types (3.14)
21s
check-types (3.12)
16s
check-linting (3.14)
1m 49s
check-types (3.11)
17s
check-linting (3.12)
1m 49s
Unit Tests + PyArrow (Python 3.12, default deps)
2m 49s
Unit Tests + Kernel (Python 3.10)
2m 45s
Unit Tests + Kernel (Python 3.12)
2m 46s
check-linting (3.13)
1m 49s
Unit Tests + PyArrow (Python 3.11, min deps)
2m 39s
check-linting (3.10)
1m 49s
Unit Tests + PyArrow (Python 3.10, min deps)
2m 37s
Unit Tests + Kernel (Python 3.11)
2m 37s
check-types (3.10)
16s
Unit Tests + PyArrow (Python 3.14, min deps)
2m 53s
Unit Tests + PyArrow (Python 3.10, default deps)
2m 42s
Unit Tests (Python 3.12, default deps)
2m 51s
Unit Tests (Python 3.14, default deps)
2m 51s
Unit Tests (Python 3.14, min deps)
2m 51s
Unit Tests + PyArrow (Python 3.13, default deps)
2m 44s
Unit Tests (Python 3.13, default deps)
2m 51s
Unit Tests (Python 3.11, default deps)
2m 51s
Unit Tests (Python 3.10, default deps)
2m 51s
Unit Tests (Python 3.11, min deps)
2m 51s
Unit Tests + PyArrow (Python 3.14, default deps)
2m 48s
1h 6m 57s