Use `CREATE OR REPLACE DICTIONARY` to avoid data loss (#392) #393

the4thamigo-uk · 2024-11-26T16:59:28Z

Summary

Dropping dictionary during model build can break anything that is currently running that depends on it. In particular materialized views that process high volumes of data, can miss processing data if they use a dictionary that is temporarily dropped.

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Unit and integration tests covering the common scenarios were added
[ X] A human-readable description of the changes was provided to include in CHANGELOG
For significant changes, documentation in https://github.com/ClickHouse/clickhouse-docs was updated with further explanations or tutorials

Use CREATE OR REPLACE DICTIONARY to avoid data loss (ClickHouse#392)

2a7a138

the4thamigo-uk force-pushed the create-or-replace-dictionary branch from 3b672e1 to 2a7a138 Compare November 26, 2024 16:59

Merge branch 'main' into create-or-replace-dictionary

5a5f184

BentsiLeviav merged commit e541907 into ClickHouse:main Dec 15, 2024
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Use `CREATE OR REPLACE DICTIONARY` to avoid data loss (#392) #393

Use `CREATE OR REPLACE DICTIONARY` to avoid data loss (#392) #393

the4thamigo-uk commented Nov 26, 2024

Use CREATE OR REPLACE DICTIONARY to avoid data loss (#392) #393

Use CREATE OR REPLACE DICTIONARY to avoid data loss (#392) #393

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the4thamigo-uk commented Nov 26, 2024

Summary

Checklist

Use `CREATE OR REPLACE DICTIONARY` to avoid data loss (#392) #393

Use `CREATE OR REPLACE DICTIONARY` to avoid data loss (#392) #393