51df8b9173
Our interval template started life as `range`, and was supported wrapping to follow Cassandra's convention of wrapping around the maximum token. We later recognized that an interval type should usually be non-wrapping and split it into wrapping_range and nonwrapping_range, with `range` aliasing wrapping_range to preserve compatibility. Even later, we realized the name was already taken by C++ ranges and so renamed it to `interval`. Given that intervals are usually non-wrapping, the default `interval` type is non-wrapping. We can now simplify it further, recognizing that everyone assumes that an interval is non-wrapping and so doesn't need the nonwrapping_interval_designation. We just rename nonwrapping_interval to `interval` and remove the type alias.
65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
/*
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* Copyright 2016-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#include "query-request.hh"
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#include "idl/keys.idl.hh"
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#include "idl/range.idl.hh"
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#include "idl/uuid.idl.hh"
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class cql_serialization_format final {
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uint8_t protocol_version();
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};
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namespace query {
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class specific_ranges {
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partition_key pk();
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std::vector<interval<clustering_key_prefix>> ranges();
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};
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// COMPATIBILITY NOTE: the partition-slice for reverse queries has two different
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// format:
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// * legacy format
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// * native format
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// The wire format uses the legacy format. See docs/dev/reverse-reads.md
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// for more details on the formats.
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class partition_slice {
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std::vector<interval<clustering_key_prefix>> default_row_ranges();
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utils::small_vector<uint32_t, 8> static_columns;
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utils::small_vector<uint32_t, 8> regular_columns;
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query::partition_slice::option_set options;
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std::unique_ptr<query::specific_ranges> get_specific_ranges();
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cql_serialization_format cql_format();
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uint32_t partition_row_limit_low_bits() [[version 1.3]] = std::numeric_limits<uint32_t>::max();
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uint32_t partition_row_limit_high_bits() [[version 4.3]] = 0;
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};
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struct max_result_size {
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uint64_t soft_limit;
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uint64_t hard_limit;
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uint64_t page_size [[version 4.7]] = 0;
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}
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class read_command {
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table_id cf_id;
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table_schema_version schema_version;
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query::partition_slice slice;
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uint32_t row_limit_low_bits;
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std::chrono::time_point<gc_clock, gc_clock::duration> timestamp;
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std::optional<tracing::trace_info> trace_info [[version 1.3]];
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uint32_t partition_limit [[version 1.3]] = std::numeric_limits<uint32_t>::max();
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query_id query_uuid [[version 2.2]] = query_id::create_null_id();
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query::is_first_page is_first_page [[version 2.2]] = query::is_first_page::no;
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std::optional<query::max_result_size> max_result_size [[version 4.3]] = std::nullopt;
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uint32_t row_limit_high_bits [[version 4.3]] = 0;
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uint64_t tombstone_limit [[version 5.2]] = query::max_tombstones;
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};
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}
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