61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
/*
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* Copyright (C) 2021-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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#pragma once
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#include "readers/flat_mutation_reader_fwd.hh"
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#include "readers/flat_mutation_reader_v2.hh"
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#include "sstables/progress_monitor.hh"
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#include <seastar/core/io_priority_class.hh>
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namespace sstables {
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namespace mx {
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// Precondition: if the slice is reversed, the schema must be reversed as well
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// and the range must be singular (`range.is_singular()`).
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// Reversed slices must be provided in the 'half-reversed' format (the order of ranges
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// being reversed, but the ranges themselves are not).
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// Fast-forwarding is not supported in reversed queries (FIXME).
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flat_mutation_reader_v2 make_reader(
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shared_sstable sstable,
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schema_ptr schema,
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reader_permit permit,
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const dht::partition_range& range,
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const query::partition_slice& slice,
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const io_priority_class& pc,
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tracing::trace_state_ptr trace_state,
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streamed_mutation::forwarding fwd,
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mutation_reader::forwarding fwd_mr,
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read_monitor& monitor);
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// Same as above but the slice is moved and stored inside the reader.
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flat_mutation_reader_v2 make_reader(
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shared_sstable sstable,
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schema_ptr schema,
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reader_permit permit,
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const dht::partition_range& range,
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query::partition_slice&& slice,
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const io_priority_class& pc,
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tracing::trace_state_ptr trace_state,
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streamed_mutation::forwarding fwd,
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mutation_reader::forwarding fwd_mr,
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read_monitor& monitor);
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// A reader which doesn't use the index at all. It reads everything from the
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// sstable and it doesn't support skipping.
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flat_mutation_reader_v2 make_crawling_reader(
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shared_sstable sstable,
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schema_ptr schema,
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reader_permit permit,
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const io_priority_class& pc,
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tracing::trace_state_ptr trace_state,
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read_monitor& monitor);
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} // namespace mx
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} // namespace sstables
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