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53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
#pragma once
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#include <unordered_set>
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#include <unordered_map>
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#include <base/types.h>
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#include <Core/QualifiedTableName.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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}
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class ReadBuffer;
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class WriteBuffer;
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/// The following are request-response messages for TablesStatus request of the client-server protocol.
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/// Client can ask for about a set of tables and the server will respond with the following information for each table:
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/// - Is the table Replicated?
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/// - If yes, replication delay for that table.
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///
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/// For nonexistent tables there will be no TableStatus entry in the response.
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struct TableStatus
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{
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bool is_replicated = false;
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UInt32 absolute_delay = 0;
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void write(WriteBuffer & out) const;
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void read(ReadBuffer & in);
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};
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struct TablesStatusRequest
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{
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std::unordered_set<QualifiedTableName> tables;
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void write(WriteBuffer & out, UInt64 server_protocol_revision) const;
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void read(ReadBuffer & in, UInt64 client_protocol_revision);
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};
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struct TablesStatusResponse
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{
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std::unordered_map<QualifiedTableName, TableStatus> table_states_by_id;
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void write(WriteBuffer & out, UInt64 client_protocol_revision) const;
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void read(ReadBuffer & in, UInt64 server_protocol_revision);
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};
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}
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