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INSERT into Distributed with insert_distributed_sync=1 stores the distributed batches on the disk for sending in background. But types may be a little bit different for the Distributed and it's underlying table, so the initiator need to know whether conversion is required or not. Before this patch those on disk distributed batches contains header, which includes dumpStructure() for the block in that batch, however it checks not only names and types and plus dumpStructure() is a debug method. So instead of storing string representation for the block header we should store empty block in the file header (note, that we cannot store the empty block not in header, since this will require reading all blocks from file, due to some trickery of the readers interface). Note, that this patch also contains tiny refactoring: - s/header/distributed_header/ v1: dumpNamesAndTypes() v2: dump empty block into the batch itself v3: move empty block into the header |
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| __init__.py | ||
| .gitignore | ||
| conftest.py | ||
| query_test.py | ||
| server.py | ||
| shell_config.sh | ||
| skip_list.json | ||