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    Posts

    Tag: new feature

    08.09.2021 | Laurenz Albe

    Index bloat reduced in PostgreSQL v14

    © Laurenz Albe 2021 PostgreSQL v12 brought more efficient storage for indexes, and v13 improved that even more by adding deduplication of index entries. But Peter Geoghegan is not done yet! PostgreSQL v14 will bring “bottom-up” index entry deletion, which is targeted at reducing unnecessary page splits, index bloat and fragmentation of heavily updated indexes. […]

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    04.06.2020 | Laurenz Albe

    Deduplication in PostgreSQL v13 B-tree indexes

    © Laurenz Albe 2020 A while ago, I wrote about B-tree improvements in v12. PostgreSQL v13, which will come out later this year, will feature index entry deduplication as an even more impressive improvement. So I thought it was time for a follow-up. Deduplication for B-tree indexes If the indexed keys for different table rows […]

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