claudevdm opened a new pull request, #40225:
URL: https://github.com/apache/beam/pull/40225
… DIRECT_READ
Port of the Java change in #39597 to the Python SDK.
- parse_table_reference now assigns segments by explicit splitting
(mirroring BigQueryHelpers.parseTableSpec) so 4-part
`project.catalog.namespace.table` and `project:catalog.namespace.table` specs
map to a composite `catalog.namespace` dataset id. Previously the dotted form
raised and the colon form silently bound the project to `project:catalog`.
- Storage Read split tolerates tables that report no numBytes by requesting
zero streams so the Read API picks the stream count; the export source's size
estimate returns 0 instead of raising.
- Unit tests for the new spec forms, domain-scoped projects, invalid specs,
and the numBytes-missing paths.
**Please** add a meaningful description for your change here
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