Document ScyllaDB 1MB page size limit and add wide table tests #674
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Add documentation about ScyllaDB's built-in 1MB page size limit which can cause fewer rows per page than requested when working with wide tables. This is particularly relevant for NumpyProtocolHandler users. Also add integration tests for wide tables (200+ columns) to verify correct behavior and the fetch_size=None workaround. Fixes #65
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Summary
docs/scylla-specific.rstNumpyProtocolHandlerwith wide tables (200+ columns)fetch_size=Noneworkaround for getting larger pagesDetails
ScyllaDB has a built-in 1MB page size limit that Cassandra does not have. This causes fewer rows per page than requested when working with wide tables, which is particularly noticeable when using
NumpyProtocolHandler.The workaround is to set
session.default_fetch_size = Noneto let ScyllaDB control page sizes.Test plan
NumpyWideTableTest::test_numpy_wide_table_pagingNumpyWideTableTest::test_numpy_wide_table_no_fetch_sizetest_cython_protocol_handlers.pystill passFixes #65