Mysql string primary key partitioner - #38093

Merged

peterdukelarsen merged 10 commits into

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pl/mysql-pk-partitioner

Aug 12, 2026

Commits on Aug 12, 2026

mysql-util: add a PK-prefix partitioner for parallel snapshots
peterdukelarsen
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29f9096
mysql-util: rely on the request budget as the partition walk bound
peterdukelarsen
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d6b454e
mysql-util: split partition into target, split, and assignment stages
peterdukelarsen
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5101bb2
mysql-util: simplify partitioner naming and drop the dedup guard
peterdukelarsen
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bd4eb5a
mysql-util: name the partitioner probe trait PrimaryKeyProber
peterdukelarsen
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83cdc0b
mysql-util: shorten partitioner naming
peterdukelarsen
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c827ecd
mysql-util: rework partitioner walk into a BFS with surrogate sort keys
peterdukelarsen
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374af21
mysql-util: remove surrogate key, revive O(depth*prefixes) algorithm and smaller partitions for more accuracy
peterdukelarsen
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ab64a4a
mysql-util: use integer row counts and rename min_split_threshold
peterdukelarsen
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1774d2d
mysql-util: explain the partition target selection and split threshold
peterdukelarsen
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a3c03ee