mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-14 02:12:21 +00:00
292 lines
7.9 KiB
C++
292 lines
7.9 KiB
C++
#include <Common/ZooKeeper/Types.h>
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#include <Storages/MergeTree/ReplicatedMergeTreeLogEntry.h>
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#include <Storages/MergeTree/ReplicatedMergeTreeTableMetadata.h>
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#include <IO/Operators.h>
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#include <IO/ReadBufferFromString.h>
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#include <IO/WriteBufferFromString.h>
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#include <IO/ReadHelpers.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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extern const int UNKNOWN_FORMAT_VERSION;
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extern const int LOGICAL_ERROR;
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}
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void ReplicatedMergeTreeLogEntryData::writeText(WriteBuffer & out) const
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{
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out << "format version: 4\n"
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<< "create_time: " << LocalDateTime(create_time ? create_time : time(nullptr)) << "\n"
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<< "source replica: " << source_replica << '\n'
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<< "block_id: " << escape << block_id << '\n';
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switch (type)
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{
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case GET_PART:
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out << "get\n" << new_part_name;
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break;
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case MERGE_PARTS:
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out << "merge\n";
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for (const String & s : source_parts)
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out << s << '\n';
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out << "into\n" << new_part_name;
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out << "\ndeduplicate: " << deduplicate;
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break;
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case DROP_RANGE:
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if (detach)
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out << "detach\n";
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else
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out << "drop\n";
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out << new_part_name;
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break;
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/// NOTE: Deprecated.
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case CLEAR_COLUMN:
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out << "clear_column\n"
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<< escape << column_name
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<< "\nfrom\n"
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<< new_part_name;
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break;
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/// NOTE: Deprecated.
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case CLEAR_INDEX:
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out << "clear_index\n"
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<< escape << index_name
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<< "\nfrom\n"
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<< new_part_name;
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break;
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case REPLACE_RANGE:
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out << typeToString(REPLACE_RANGE) << "\n";
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replace_range_entry->writeText(out);
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break;
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case MUTATE_PART:
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out << "mutate\n"
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<< source_parts.at(0) << "\n"
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<< "to\n"
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<< new_part_name;
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if (isAlterMutation())
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out << "\nalter_version\n" << alter_version;
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break;
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case ALTER_METADATA: /// Just make local /metadata and /columns consistent with global
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out << "alter\n";
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out << "alter_version\n";
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out << alter_version<< "\n";
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out << "have_mutation\n";
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out << have_mutation << "\n";
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out << "columns_str_size:\n";
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out << columns_str.size() << "\n";
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out << columns_str << "\n";
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out << "metadata_str_size:\n";
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out << metadata_str.size() << "\n";
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out << metadata_str;
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break;
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default:
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throw Exception("Unknown log entry type: " + DB::toString<int>(type), ErrorCodes::LOGICAL_ERROR);
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}
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out << '\n';
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if (new_part_type != MergeTreeDataPartType::WIDE && new_part_type != MergeTreeDataPartType::UNKNOWN)
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out << "part_type: " << new_part_type.toString() << "\n";
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if (quorum)
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out << "quorum: " << quorum << '\n';
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}
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void ReplicatedMergeTreeLogEntryData::readText(ReadBuffer & in)
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{
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UInt8 format_version = 0;
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String type_str;
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in >> "format version: " >> format_version >> "\n";
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if (format_version < 1 || format_version > 4)
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throw Exception("Unknown ReplicatedMergeTreeLogEntry format version: " + DB::toString(format_version), ErrorCodes::UNKNOWN_FORMAT_VERSION);
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if (format_version >= 2)
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{
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LocalDateTime create_time_dt;
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in >> "create_time: " >> create_time_dt >> "\n";
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create_time = create_time_dt;
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}
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in >> "source replica: " >> source_replica >> "\n";
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if (format_version >= 3)
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{
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in >> "block_id: " >> escape >> block_id >> "\n";
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}
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in >> type_str >> "\n";
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bool trailing_newline_found = false;
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if (type_str == "get")
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{
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type = GET_PART;
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in >> new_part_name;
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}
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else if (type_str == "merge")
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{
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type = MERGE_PARTS;
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while (true)
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{
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String s;
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in >> s >> "\n";
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if (s == "into")
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break;
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source_parts.push_back(s);
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}
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in >> new_part_name;
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if (format_version >= 4)
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in >> "\ndeduplicate: " >> deduplicate;
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}
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else if (type_str == "drop" || type_str == "detach")
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{
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type = DROP_RANGE;
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detach = type_str == "detach";
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in >> new_part_name;
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}
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else if (type_str == "clear_column") /// NOTE: Deprecated.
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{
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type = CLEAR_COLUMN;
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in >> escape >> column_name >> "\nfrom\n" >> new_part_name;
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}
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else if (type_str == "clear_index") /// NOTE: Deprecated.
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{
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type = CLEAR_INDEX;
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in >> escape >> index_name >> "\nfrom\n" >> new_part_name;
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}
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else if (type_str == typeToString(REPLACE_RANGE))
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{
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type = REPLACE_RANGE;
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replace_range_entry = std::make_shared<ReplaceRangeEntry>();
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replace_range_entry->readText(in);
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}
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else if (type_str == "mutate")
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{
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type = MUTATE_PART;
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String source_part;
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in >> source_part >> "\n"
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>> "to\n"
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>> new_part_name;
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source_parts.push_back(source_part);
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in >> "\n";
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if (in.eof())
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trailing_newline_found = true;
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else if (checkString("alter_version\n", in))
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in >> alter_version;
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}
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else if (type_str == "alter")
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{
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type = ALTER_METADATA;
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in >> "alter_version\n";
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in >> alter_version;
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in >> "\nhave_mutation\n";
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in >> have_mutation;
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in >> "\ncolumns_str_size:\n";
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size_t columns_size;
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in >> columns_size >> "\n";
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columns_str.resize(columns_size);
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in.readStrict(&columns_str[0], columns_size);
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in >> "\nmetadata_str_size:\n";
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size_t metadata_size;
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in >> metadata_size >> "\n";
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metadata_str.resize(metadata_size);
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in.readStrict(&metadata_str[0], metadata_size);
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}
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if (!trailing_newline_found)
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in >> "\n";
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if (checkString("part_type: ", in))
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{
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String part_type_str;
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in >> type_str;
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new_part_type.fromString(type_str);
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in >> "\n";
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}
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else
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new_part_type = MergeTreeDataPartType::WIDE;
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/// Optional field.
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if (!in.eof())
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in >> "quorum: " >> quorum >> "\n";
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}
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void ReplicatedMergeTreeLogEntryData::ReplaceRangeEntry::writeText(WriteBuffer & out) const
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{
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out << "drop_range_name: " << drop_range_part_name << "\n";
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out << "from_database: " << escape << from_database << "\n";
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out << "from_table: " << escape << from_table << "\n";
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out << "source_parts: ";
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writeQuoted(src_part_names, out);
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out << "\n";
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out << "new_parts: ";
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writeQuoted(new_part_names, out);
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out << "\n";
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out << "part_checksums: ";
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writeQuoted(part_names_checksums, out);
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out << "\n";
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out << "columns_version: " << columns_version;
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}
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void ReplicatedMergeTreeLogEntryData::ReplaceRangeEntry::readText(ReadBuffer & in)
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{
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in >> "drop_range_name: " >> drop_range_part_name >> "\n";
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in >> "from_database: " >> escape >> from_database >> "\n";
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in >> "from_table: " >> escape >> from_table >> "\n";
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in >> "source_parts: ";
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readQuoted(src_part_names, in);
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in >> "\n";
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in >> "new_parts: ";
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readQuoted(new_part_names, in);
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in >> "\n";
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in >> "part_checksums: ";
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readQuoted(part_names_checksums, in);
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in >> "\n";
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in >> "columns_version: " >> columns_version;
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}
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String ReplicatedMergeTreeLogEntryData::toString() const
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{
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WriteBufferFromOwnString out;
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writeText(out);
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return out.str();
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}
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ReplicatedMergeTreeLogEntry::Ptr ReplicatedMergeTreeLogEntry::parse(const String & s, const Coordination::Stat & stat)
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{
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ReadBufferFromString in(s);
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Ptr res = std::make_shared<ReplicatedMergeTreeLogEntry>();
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res->readText(in);
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assertEOF(in);
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if (!res->create_time)
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res->create_time = stat.ctime / 1000;
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return res;
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}
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}
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