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ee9df91a76
" This PR makes it possible to enable the usage of different partitioner for each table. If no table-specific partitioner is set for a given table then a default partitioner is used. The PR is composed of the following parts: - Introduction of schema::get_partitioner that still returns dht::global_partitioner - Replacement of all the usage of dht::global_partitioner with schema::get_partitioner - Making it possible to set table-specific partitioner in a schema_builder - Remove all the places that were setting default partitioner except for main.cc (mostly tests) - Move default partitioner from i_partitioner to schema.cc and hide it from the rest of the codebase - Remove dht::global_partitioner After this PR there's no such thing as global partitioner at all. There is only a default partitioner but it still has to be accessed through schema::get_partitioner. There are some intermediate states in which i_partitioner is stored as shared_ptr in the schema but the final version keeps it by const&. The PR does not enable per table partitioner end-to-end. Just the internals of the single node are covered. I still have to deal with: - Making sure a table has the same partitioner on each node - Allowing user to set up a table-specific partitioner on table - Signal driver about what partitioner is used by a given table - Persist partitioner info for each table that does not use default partitioner. Fixes #5493 Tests: unit(dev, release, debug), dtest(byo) " * 'per_table_partitioner' of https://github.com/haaawk/scylla: schema: drop optional from _partitioner field make_multishard_combining_reader: stop taking partitioner split_range_to_single_shard: stop taking partitioner as argument tests: remove unused murmur3 includes partitioner: move default_partitioner to schema.cc partitioner: hide dht::default_partitioner schema: include partitioner name in scylla tables mutation schema: make it possible to set custom partitioner scylla_tables: add partitioner column schema_features: add PER_TABLE_PARTITIONERS feature features: add PER_TABLE_PARTITIONERS feature