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  5. Christophe Pettus: All Your GUCs in a Row: multixact_member_buffers and multixact_offset_buffers
Christophe Pettus: All Your GUCs in a Row: multixact_member_buffers and multixact_offset_buffers
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Christophe Pettus: All Your GUCs in a Row: multixact_member_buffers and multixact_offset_buffers

When one long transaction holds row locks on thousands of parents, multixact cache misses can tank insert throughput. (I consult on PostgreSQL through PGX Inc..)

DatabasesPlanet PostgreSQLPublished: October 5, 2026
Databases
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Kaushik Iska: What is direct I/O, and why does ClickHouse Managed Postgres use it for backups?

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DatabasesNeonOct 2, 2026

Neon gives you 100 projects for free, with 1 GB of Postgres storage each

Database storage on the Neon Free plan is now 1 GB per project, up from 0.5 GB. You still get 100 projects, with existing projects getting the new limit automatically.

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