Neki is sharded Postgres by PlanetScale

11 跨分片事务即将推出在单个事务中跨分片写入。Neki 协调提交以确保原子性：要么所有分片都应用更改，要么全部不应用。使用明确的工作流进行导入、重分片、模式变更、切换和清理。Neki 使分布式 Postgres 操作可重复执行。 13 在线版本升级通过相同的在线迁移模型迁移到新的 Postgres 版本：创建目标分片组、复制、切换并停用旧分片组。在源数据库持续处理流量的同时导入 Neki。执行复制、验证，并在目标就绪时进行切换。每个 Neki 分片都有自己的 WAL 和逻辑复制路径。CDC 保持与标准 Postgres 模式和单分片数据流的兼容性。

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Cross-shard transactionsComing soon

Write across shards in one transaction. Neki coordinates commit so the change is atomic: every shard applies it, or none do.

Use explicit workflows for imports, resharding, schema changes, cutovers, and cleanup. Neki makes distributed Postgres operations repeatable.

Online version upgrades

Move to new Postgres versions through the same online migration model: create target shard groups, replicate, cut over, and retire the old groups.

Import into Neki while the source database keeps serving traffic. Copy, replicate, verify, and cut over when the target is ready.

Each Neki shard has its own WAL and logical replication path. CDC stays compatible with standard Postgres patterns and per-shard streams.

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