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"Defines origin v3-format for system/schema tables, and use them for schema storage/retrival. Includes a legacy_schema_migrator implementation/port from origin. Note that since we don't support features like triggers, functions and aggregates, it will bail if encountering such a feature used. Note also that this patch set does not convert the "hints" and "backlog" tables, even though these have changed in v3 as well. That will be a separate patch set. Tested against dtests. Note that patches for dtest + ccm will follow." * 'calle/systemtables' of github.com:cloudius-systems/seastar-dev: (36 commits) legacy_schema_migrator: Actually truncate legacy schema tables on finish database: Extract "remove" from "drop_columnfamily" v3 schema test fixes thrift: Update CQL mapping of static CFs schema_tables: Use v3 schema tables and formats type_parser: Origin expects empty string -> bytes_type cf_prop_defs: Add crc_check_chance as recognized (even if we don't use) types_test: v3 style schemas enforce explicit "frozen" in tupes/ut:s cql3_type: v3 to_string cql_types: Introduce cql3_type::empty and associate with empty data_type schema: rename column accessors to be in line with origin schema: Add "is_static_compact_table" schema_builder: Add helper to generate unique column names akin origin schema: Add utility functions for static columns schema: Use heterogeneous comparator for columns bounds cql3_type_parser: Resolve from cql3 names/expressions cql3_type: Add "prepare_interal" and "references_user_type" cql3::cql3_type: Add prepare_internal path using only "local" holders cql3_type: Add virtual destructor. database/main: encapsulate system CF dir touching ...