THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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| copy | in place | |
|---|---|---|
| The amount of disk input-output | 2x | 2x+ (depends on WAL settings) |
| The amount of required disk space | 2x | limited by WAL settings |
| Data overhead | no | yes(1-2 bytes per page) |
Performance(rough estimate) | faster | slower |
Implementation complexity (rough estimate) | ||
| Stable topology, read-only | simple | simple |
| Online updates | complex | simple |
| Unstable topology | complex | simple |
...
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