mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-17 13:13:36 +00:00
Support GENERATED and DEFAULT columns
This commit is contained in:
kssenii
parent
f39f0c6a74
commit
806061642a
@ -20,6 +20,11 @@ namespace ErrorCodes
|
||||
extern const int UNKNOWN_TYPE;
|
||||
}
|
||||
|
||||
ExternalResultDescription::ExternalResultDescription(const Block & sample_block_)
|
||||
{
|
||||
init(sample_block_);
|
||||
}
|
||||
|
||||
void ExternalResultDescription::init(const Block & sample_block_)
|
||||
{
|
||||
sample_block = sample_block_;
|
||||
|
||||
@ -41,6 +41,9 @@ struct ExternalResultDescription
|
||||
Block sample_block;
|
||||
std::vector<std::pair<ValueType, bool /* is_nullable */>> types;
|
||||
|
||||
ExternalResultDescription() = default;
|
||||
explicit ExternalResultDescription(const Block & sample_block_);
|
||||
|
||||
void init(const Block & sample_block_);
|
||||
};
|
||||
|
||||
|
||||
@ -36,7 +36,7 @@ void insertDefaultPostgreSQLValue(IColumn & column, const IColumn & sample_colum
|
||||
void insertPostgreSQLValue(
|
||||
IColumn & column, std::string_view value,
|
||||
const ExternalResultDescription::ValueType type, const DataTypePtr data_type,
|
||||
std::unordered_map<size_t, PostgreSQLArrayInfo> & array_info, size_t idx)
|
||||
const std::unordered_map<size_t, PostgreSQLArrayInfo> & array_info, size_t idx)
|
||||
{
|
||||
switch (type)
|
||||
{
|
||||
@ -125,8 +125,8 @@ void insertPostgreSQLValue(
|
||||
pqxx::array_parser parser{value};
|
||||
std::pair<pqxx::array_parser::juncture, std::string> parsed = parser.get_next();
|
||||
|
||||
size_t dimension = 0, max_dimension = 0, expected_dimensions = array_info[idx].num_dimensions;
|
||||
const auto parse_value = array_info[idx].pqxx_parser;
|
||||
size_t dimension = 0, max_dimension = 0, expected_dimensions = array_info.at(idx).num_dimensions;
|
||||
const auto parse_value = array_info.at(idx).pqxx_parser;
|
||||
std::vector<Row> dimensions(expected_dimensions + 1);
|
||||
|
||||
while (parsed.first != pqxx::array_parser::juncture::done)
|
||||
@ -138,7 +138,7 @@ void insertPostgreSQLValue(
|
||||
dimensions[dimension].emplace_back(parse_value(parsed.second));
|
||||
|
||||
else if (parsed.first == pqxx::array_parser::juncture::null_value)
|
||||
dimensions[dimension].emplace_back(array_info[idx].default_value);
|
||||
dimensions[dimension].emplace_back(array_info.at(idx).default_value);
|
||||
|
||||
else if (parsed.first == pqxx::array_parser::juncture::row_end)
|
||||
{
|
||||
|
||||
@ -23,7 +23,7 @@ struct PostgreSQLArrayInfo
|
||||
void insertPostgreSQLValue(
|
||||
IColumn & column, std::string_view value,
|
||||
const ExternalResultDescription::ValueType type, const DataTypePtr data_type,
|
||||
std::unordered_map<size_t, PostgreSQLArrayInfo> & array_info, size_t idx);
|
||||
const std::unordered_map<size_t, PostgreSQLArrayInfo> & array_info, size_t idx);
|
||||
|
||||
void preparePostgreSQLArrayInfo(
|
||||
std::unordered_map<size_t, PostgreSQLArrayInfo> & array_info, size_t column_idx, const DataTypePtr data_type);
|
||||
|
||||
@ -186,20 +186,25 @@ PostgreSQLTableStructure::ColumnsInfoPtr readNamesAndTypesList(
|
||||
}
|
||||
else
|
||||
{
|
||||
std::tuple<std::string, std::string, std::string, uint16_t, std::string, std::string> row;
|
||||
std::tuple<std::string, std::string, std::string, uint16_t, std::string, std::string, std::string> row;
|
||||
while (stream >> row)
|
||||
{
|
||||
auto data_type = convertPostgreSQLDataType(
|
||||
const auto column_name = std::get<0>(row);
|
||||
const auto data_type = convertPostgreSQLDataType(
|
||||
std::get<1>(row), recheck_array,
|
||||
use_nulls && (std::get<2>(row) == /* not nullable */"f"),
|
||||
std::get<3>(row));
|
||||
|
||||
columns.push_back(NameAndTypePair(std::get<0>(row), data_type));
|
||||
columns.push_back(NameAndTypePair(column_name, data_type));
|
||||
auto attgenerated = std::get<6>(row);
|
||||
LOG_TEST(&Poco::Logger::get("kssenii"), "KSSENII: attgenerated: {}", attgenerated);
|
||||
|
||||
attributes.emplace_back(
|
||||
attributes.emplace(
|
||||
column_name,
|
||||
PostgreSQLTableStructure::PGAttribute{
|
||||
.atttypid = parse<int>(std::get<4>(row)),
|
||||
.atttypmod = parse<int>(std::get<5>(row)),
|
||||
.attgenerated = attgenerated.empty() ? char{} : char(attgenerated[0])
|
||||
});
|
||||
|
||||
++i;
|
||||
@ -253,14 +258,19 @@ PostgreSQLTableStructure fetchPostgreSQLTableStructure(
|
||||
PostgreSQLTableStructure table;
|
||||
|
||||
auto where = fmt::format("relname = {}", quoteString(postgres_table));
|
||||
if (postgres_schema.empty())
|
||||
where += " AND relnamespace = (SELECT oid FROM pg_namespace WHERE nspname = 'public')";
|
||||
else
|
||||
where += fmt::format(" AND relnamespace = (SELECT oid FROM pg_namespace WHERE nspname = {})", quoteString(postgres_schema));
|
||||
|
||||
where += postgres_schema.empty()
|
||||
? " AND relnamespace = (SELECT oid FROM pg_namespace WHERE nspname = 'public')"
|
||||
: fmt::format(" AND relnamespace = (SELECT oid FROM pg_namespace WHERE nspname = {})", quoteString(postgres_schema));
|
||||
|
||||
std::string query = fmt::format(
|
||||
"SELECT attname AS name, format_type(atttypid, atttypmod) AS type, "
|
||||
"attnotnull AS not_null, attndims AS dims, atttypid as type_id, atttypmod as type_modifier "
|
||||
"SELECT attname AS name, " /// column name
|
||||
"format_type(atttypid, atttypmod) AS type, " /// data type
|
||||
"attnotnull AS not_null, " /// is nullable
|
||||
"attndims AS dims, " /// array dimensions
|
||||
"atttypid as type_id, "
|
||||
"atttypmod as type_modifier, "
|
||||
"attgenerated as generated " /// if column has GENERATED
|
||||
"FROM pg_attribute "
|
||||
"WHERE attrelid = (SELECT oid FROM pg_class WHERE {}) "
|
||||
"AND NOT attisdropped AND attnum > 0", where);
|
||||
@ -271,11 +281,44 @@ PostgreSQLTableStructure fetchPostgreSQLTableStructure(
|
||||
if (!table.physical_columns)
|
||||
throw Exception(ErrorCodes::UNKNOWN_TABLE, "PostgreSQL table {} does not exist", postgres_table_with_schema);
|
||||
|
||||
for (const auto & column : table.physical_columns->columns)
|
||||
{
|
||||
table.physical_columns->names.push_back(column.name);
|
||||
}
|
||||
|
||||
bool check_generated = table.physical_columns->attributes.end() != std::find_if(
|
||||
table.physical_columns->attributes.begin(),
|
||||
table.physical_columns->attributes.end(),
|
||||
[](const auto & attr){ return attr.second.attgenerated == 's'; });
|
||||
|
||||
if (check_generated)
|
||||
{
|
||||
std::string attrdef_query = fmt::format(
|
||||
"SELECT adnum, pg_get_expr(adbin, adrelid) as generated_expression "
|
||||
"FROM pg_attrdef "
|
||||
"WHERE adrelid = (SELECT oid FROM pg_class WHERE {});", where);
|
||||
|
||||
pqxx::result result{tx.exec(attrdef_query)};
|
||||
for (const auto row : result)
|
||||
{
|
||||
size_t adnum = row[0].as<int>();
|
||||
if (!adnum || adnum > table.physical_columns->names.size())
|
||||
{
|
||||
throw Exception(ErrorCodes::LOGICAL_ERROR,
|
||||
"Received adnum {}, but currently fetched columns list has {} columns",
|
||||
adnum, table.physical_columns->attributes.size());
|
||||
}
|
||||
const auto column_name = table.physical_columns->names[adnum - 1];
|
||||
table.physical_columns->attributes.at(column_name).attr_def = row[1].as<std::string>();
|
||||
}
|
||||
}
|
||||
|
||||
if (with_primary_key)
|
||||
{
|
||||
/// wiki.postgresql.org/wiki/Retrieve_primary_key_columns
|
||||
query = fmt::format(
|
||||
"SELECT a.attname, format_type(a.atttypid, a.atttypmod) AS data_type "
|
||||
"SELECT a.attname, " /// column name
|
||||
"format_type(a.atttypid, a.atttypmod) AS data_type " /// data type
|
||||
"FROM pg_index i "
|
||||
"JOIN pg_attribute a ON a.attrelid = i.indrelid "
|
||||
"AND a.attnum = ANY(i.indkey) "
|
||||
|
||||
@ -16,13 +16,17 @@ struct PostgreSQLTableStructure
|
||||
{
|
||||
Int32 atttypid;
|
||||
Int32 atttypmod;
|
||||
bool atthasdef;
|
||||
char attgenerated;
|
||||
std::string attr_def;
|
||||
};
|
||||
using Attributes = std::vector<PGAttribute>;
|
||||
using Attributes = std::unordered_map<std::string, PGAttribute>;
|
||||
|
||||
struct ColumnsInfo
|
||||
{
|
||||
NamesAndTypesList columns;
|
||||
Attributes attributes;
|
||||
std::vector<std::string> names;
|
||||
ColumnsInfo(NamesAndTypesList && columns_, Attributes && attributes_) : columns(columns_), attributes(attributes_) {}
|
||||
};
|
||||
using ColumnsInfoPtr = std::shared_ptr<ColumnsInfo>;
|
||||
|
||||
@ -24,6 +24,22 @@ namespace ErrorCodes
|
||||
extern const int BAD_ARGUMENTS;
|
||||
}
|
||||
|
||||
namespace
|
||||
{
|
||||
using ArrayInfo = std::unordered_map<size_t, PostgreSQLArrayInfo>;
|
||||
|
||||
ArrayInfo createArrayInfos(const NamesAndTypesList & columns, const ExternalResultDescription & columns_description)
|
||||
{
|
||||
ArrayInfo array_info;
|
||||
for (size_t i = 0; i < columns.size(); ++i)
|
||||
{
|
||||
if (columns_description.types[i].first == ExternalResultDescription::ValueType::vtArray)
|
||||
preparePostgreSQLArrayInfo(array_info, i, columns_description.sample_block.getByPosition(i).type);
|
||||
}
|
||||
return array_info;
|
||||
}
|
||||
}
|
||||
|
||||
MaterializedPostgreSQLConsumer::MaterializedPostgreSQLConsumer(
|
||||
ContextPtr context_,
|
||||
std::shared_ptr<postgres::Connection> connection_,
|
||||
@ -40,126 +56,160 @@ MaterializedPostgreSQLConsumer::MaterializedPostgreSQLConsumer(
|
||||
, publication_name(publication_name_)
|
||||
, connection(connection_)
|
||||
, current_lsn(start_lsn)
|
||||
, final_lsn(start_lsn)
|
||||
, lsn_value(getLSNValue(start_lsn))
|
||||
, max_block_size(max_block_size_)
|
||||
, schema_as_a_part_of_table_name(schema_as_a_part_of_table_name_)
|
||||
{
|
||||
final_lsn = start_lsn;
|
||||
{
|
||||
auto tx = std::make_shared<pqxx::nontransaction>(connection->getRef());
|
||||
current_lsn = advanceLSN(tx);
|
||||
LOG_TRACE(log, "Starting replication. LSN: {} (last: {})", getLSNValue(current_lsn), getLSNValue(final_lsn));
|
||||
tx->commit();
|
||||
}
|
||||
|
||||
for (const auto & [table_name, storage_info] : storages_info_)
|
||||
storages.emplace(table_name, storage_info);
|
||||
storages.emplace(table_name, StorageData(storage_info, log));
|
||||
|
||||
LOG_TRACE(log, "Starting replication. LSN: {} (last: {}), storages: {}",
|
||||
getLSNValue(current_lsn), getLSNValue(final_lsn), storages.size());
|
||||
}
|
||||
|
||||
|
||||
MaterializedPostgreSQLConsumer::StorageData::StorageData(const StorageInfo & storage_info)
|
||||
: storage(storage_info.storage), buffer(storage_info.storage->getInMemoryMetadataPtr(), storage_info.attributes)
|
||||
MaterializedPostgreSQLConsumer::StorageData::StorageData(const StorageInfo & storage_info, Poco::Logger * log_)
|
||||
: storage(storage_info.storage)
|
||||
, table_description(storage_info.storage->getInMemoryMetadataPtr()->getSampleBlock())
|
||||
, columns_attributes(storage_info.attributes)
|
||||
, array_info(createArrayInfos(storage_info.storage->getInMemoryMetadataPtr()->getColumns().getAllPhysical(), table_description))
|
||||
{
|
||||
auto table_id = storage_info.storage->getStorageID();
|
||||
LOG_TRACE(&Poco::Logger::get("StorageMaterializedPostgreSQL"),
|
||||
"New buffer for table {}, number of attributes: {}, number if columns: {}, structure: {}",
|
||||
table_id.getNameForLogs(), buffer.attributes.size(), buffer.getColumnsNum(), buffer.description.sample_block.dumpStructure());
|
||||
auto columns_num = table_description.sample_block.columns();
|
||||
/// +2 because of _sign and _version columns
|
||||
if (columns_attributes.size() + 2 != columns_num)
|
||||
{
|
||||
throw Exception(ErrorCodes::LOGICAL_ERROR,
|
||||
"Columns number mismatch. Attributes: {}, buffer: {}",
|
||||
columns_attributes.size(), columns_num);
|
||||
}
|
||||
|
||||
LOG_TRACE(log_, "Adding definition for table {}, structure: {}",
|
||||
storage_info.storage->getStorageID().getNameForLogs(),
|
||||
table_description.sample_block.dumpStructure());
|
||||
}
|
||||
|
||||
MaterializedPostgreSQLConsumer::StorageData::Buffer::Buffer(
|
||||
StorageMetadataPtr storage_metadata, const PostgreSQLTableStructure::Attributes & attributes_)
|
||||
: attributes(attributes_)
|
||||
ColumnsWithTypeAndName && columns_,
|
||||
const ExternalResultDescription & table_description_)
|
||||
{
|
||||
const Block sample_block = storage_metadata->getSampleBlock();
|
||||
|
||||
/// Need to clear type, because in description.init() the types are appended
|
||||
description.types.clear();
|
||||
description.init(sample_block);
|
||||
|
||||
columns = description.sample_block.cloneEmptyColumns();
|
||||
const auto & storage_columns = storage_metadata->getColumns().getAllPhysical();
|
||||
auto insert_columns = std::make_shared<ASTExpressionList>();
|
||||
|
||||
auto columns_num = description.sample_block.columns();
|
||||
assert(columns_num == storage_columns.size());
|
||||
if (attributes.size() + 2 != columns_num) /// +2 because sign and version columns
|
||||
throw Exception(ErrorCodes::LOGICAL_ERROR, "Columns number mismatch. Attributes: {}, buffer: {}",
|
||||
attributes.size(), columns_num);
|
||||
|
||||
size_t idx = 0;
|
||||
for (const auto & column : storage_columns)
|
||||
if (columns_.end() != std::find_if(
|
||||
columns_.begin(), columns_.end(),
|
||||
[](const auto & col) { return col.name == "_sign" || col.name == "_version"; }))
|
||||
{
|
||||
if (description.types[idx].first == ExternalResultDescription::ValueType::vtArray)
|
||||
preparePostgreSQLArrayInfo(array_info, idx, description.sample_block.getByPosition(idx).type);
|
||||
idx++;
|
||||
|
||||
insert_columns->children.emplace_back(std::make_shared<ASTIdentifier>(column.name));
|
||||
throw Exception(ErrorCodes::LOGICAL_ERROR,
|
||||
"PostgreSQL table cannot contain `_sign` or `_version` columns "
|
||||
"as they are reserved for internal usage");
|
||||
}
|
||||
|
||||
columns_ast = std::move(insert_columns);
|
||||
columns_.push_back(table_description_.sample_block.getByName("_sign"));
|
||||
columns_.push_back(table_description_.sample_block.getByName("_version"));
|
||||
|
||||
for (const auto & col : columns_)
|
||||
{
|
||||
if (!table_description_.sample_block.has(col.name))
|
||||
{
|
||||
throw Exception(ErrorCodes::LOGICAL_ERROR,
|
||||
"Having column {}, but no such column in table ({})",
|
||||
col.name, table_description_.sample_block.dumpStructure());
|
||||
}
|
||||
|
||||
|
||||
void MaterializedPostgreSQLConsumer::assertCorrectInsertion(StorageData::Buffer & buffer, size_t column_idx)
|
||||
const auto & actual_column = table_description_.sample_block.getByName(col.name);
|
||||
if (col.type != actual_column.type)
|
||||
{
|
||||
if (column_idx >= buffer.description.sample_block.columns()
|
||||
|| column_idx >= buffer.description.types.size()
|
||||
|| column_idx >= buffer.columns.size())
|
||||
throw Exception(
|
||||
ErrorCodes::LOGICAL_ERROR,
|
||||
throw Exception(ErrorCodes::LOGICAL_ERROR,
|
||||
"Having column {} of type {}, but expected {}",
|
||||
col.name, col.type->getName(), actual_column.type->getName());
|
||||
}
|
||||
}
|
||||
|
||||
sample_block = Block(columns_);
|
||||
columns = sample_block.cloneEmptyColumns();
|
||||
|
||||
for (const auto & name : sample_block.getNames())
|
||||
columns_ast.children.emplace_back(std::make_shared<ASTIdentifier>(name));
|
||||
}
|
||||
|
||||
MaterializedPostgreSQLConsumer::StorageData::Buffer & MaterializedPostgreSQLConsumer::StorageData::getBuffer()
|
||||
{
|
||||
if (!buffer)
|
||||
{
|
||||
throw Exception(ErrorCodes::LOGICAL_ERROR, "Data buffer not initialized for {}",
|
||||
storage->getStorageID().getNameForLogs());
|
||||
}
|
||||
|
||||
return *buffer;
|
||||
}
|
||||
|
||||
void MaterializedPostgreSQLConsumer::StorageData::Buffer::assertInsertIsPossible(size_t col_idx) const
|
||||
{
|
||||
if (col_idx >= columns.size())
|
||||
{
|
||||
throw Exception(ErrorCodes::LOGICAL_ERROR,
|
||||
"Attempt to insert into buffer at position: "
|
||||
"{}, but block columns size is {}, types size: {}, columns size: {}, buffer structure: {}",
|
||||
column_idx,
|
||||
buffer.description.sample_block.columns(),
|
||||
buffer.description.types.size(), buffer.columns.size(),
|
||||
buffer.description.sample_block.dumpStructure());
|
||||
"{}, but block columns size is {} (full structure: {})",
|
||||
col_idx, columns.size(), sample_block.dumpStructure());
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void MaterializedPostgreSQLConsumer::insertValue(StorageData::Buffer & buffer, const std::string & value, size_t column_idx)
|
||||
void MaterializedPostgreSQLConsumer::insertValue(StorageData & storage_data, const std::string & value, size_t column_idx)
|
||||
{
|
||||
assertCorrectInsertion(buffer, column_idx);
|
||||
auto & buffer = storage_data.getBuffer();
|
||||
buffer.assertInsertIsPossible(column_idx);
|
||||
|
||||
const auto & sample = buffer.description.sample_block.getByPosition(column_idx);
|
||||
bool is_nullable = buffer.description.types[column_idx].second;
|
||||
const auto & column_type_and_name = buffer.sample_block.getByPosition(column_idx);
|
||||
auto & column = buffer.columns[column_idx];
|
||||
|
||||
const size_t column_idx_in_table = storage_data.table_description.sample_block.getPositionByName(column_type_and_name.name);
|
||||
const auto & type_description = storage_data.table_description.types[column_idx_in_table];
|
||||
|
||||
try
|
||||
{
|
||||
if (is_nullable)
|
||||
if (column_type_and_name.type->isNullable())
|
||||
{
|
||||
ColumnNullable & column_nullable = assert_cast<ColumnNullable &>(*buffer.columns[column_idx]);
|
||||
const auto & data_type = assert_cast<const DataTypeNullable &>(*sample.type);
|
||||
ColumnNullable & column_nullable = assert_cast<ColumnNullable &>(*column);
|
||||
const auto & data_type = assert_cast<const DataTypeNullable &>(*column_type_and_name.type);
|
||||
|
||||
insertPostgreSQLValue(
|
||||
column_nullable.getNestedColumn(), value,
|
||||
buffer.description.types[column_idx].first, data_type.getNestedType(), buffer.array_info, column_idx);
|
||||
column_nullable.getNestedColumn(), value, type_description.first,
|
||||
data_type.getNestedType(), storage_data.array_info, column_idx_in_table);
|
||||
|
||||
column_nullable.getNullMapData().emplace_back(0);
|
||||
}
|
||||
else
|
||||
{
|
||||
insertPostgreSQLValue(
|
||||
*buffer.columns[column_idx], value,
|
||||
buffer.description.types[column_idx].first, sample.type,
|
||||
buffer.array_info, column_idx);
|
||||
*column, value, type_description.first, column_type_and_name.type,
|
||||
storage_data.array_info, column_idx_in_table);
|
||||
}
|
||||
}
|
||||
catch (const pqxx::conversion_error & e)
|
||||
{
|
||||
LOG_ERROR(log, "Conversion failed while inserting PostgreSQL value {}, will insert default value. Error: {}", value, e.what());
|
||||
insertDefaultValue(buffer, column_idx);
|
||||
LOG_ERROR(log, "Conversion failed while inserting PostgreSQL value {}, "
|
||||
"will insert default value. Error: {}", value, e.what());
|
||||
|
||||
insertDefaultPostgreSQLValue(*column, *column_type_and_name.column);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void MaterializedPostgreSQLConsumer::insertDefaultValue(StorageData::Buffer & buffer, size_t column_idx)
|
||||
void MaterializedPostgreSQLConsumer::insertDefaultValue(StorageData & storage_data, size_t column_idx)
|
||||
{
|
||||
assertCorrectInsertion(buffer, column_idx);
|
||||
auto & buffer = storage_data.getBuffer();
|
||||
buffer.assertInsertIsPossible(column_idx);
|
||||
|
||||
const auto & sample = buffer.description.sample_block.getByPosition(column_idx);
|
||||
insertDefaultPostgreSQLValue(*buffer.columns[column_idx], *sample.column);
|
||||
const auto & column_type_and_name = buffer.sample_block.getByPosition(column_idx);
|
||||
auto & column = buffer.columns[column_idx];
|
||||
|
||||
insertDefaultPostgreSQLValue(*column, *column_type_and_name.column);
|
||||
}
|
||||
|
||||
|
||||
void MaterializedPostgreSQLConsumer::readString(const char * message, size_t & pos, size_t size, String & result)
|
||||
{
|
||||
assert(size > pos + 2);
|
||||
@ -173,7 +223,6 @@ void MaterializedPostgreSQLConsumer::readString(const char * message, size_t & p
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
template<typename T>
|
||||
T MaterializedPostgreSQLConsumer::unhexN(const char * message, size_t pos, size_t n)
|
||||
{
|
||||
@ -186,7 +235,6 @@ T MaterializedPostgreSQLConsumer::unhexN(const char * message, size_t pos, size_
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
Int64 MaterializedPostgreSQLConsumer::readInt64(const char * message, size_t & pos, [[maybe_unused]] size_t size)
|
||||
{
|
||||
assert(size >= pos + 16);
|
||||
@ -195,7 +243,6 @@ Int64 MaterializedPostgreSQLConsumer::readInt64(const char * message, size_t & p
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
Int32 MaterializedPostgreSQLConsumer::readInt32(const char * message, size_t & pos, [[maybe_unused]] size_t size)
|
||||
{
|
||||
assert(size >= pos + 8);
|
||||
@ -204,7 +251,6 @@ Int32 MaterializedPostgreSQLConsumer::readInt32(const char * message, size_t & p
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
Int16 MaterializedPostgreSQLConsumer::readInt16(const char * message, size_t & pos, [[maybe_unused]] size_t size)
|
||||
{
|
||||
assert(size >= pos + 4);
|
||||
@ -213,7 +259,6 @@ Int16 MaterializedPostgreSQLConsumer::readInt16(const char * message, size_t & p
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
Int8 MaterializedPostgreSQLConsumer::readInt8(const char * message, size_t & pos, [[maybe_unused]] size_t size)
|
||||
{
|
||||
assert(size >= pos + 2);
|
||||
@ -222,25 +267,23 @@ Int8 MaterializedPostgreSQLConsumer::readInt8(const char * message, size_t & pos
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
void MaterializedPostgreSQLConsumer::readTupleData(
|
||||
StorageData::Buffer & buffer, const char * message, size_t & pos, [[maybe_unused]] size_t size, PostgreSQLQuery type, bool old_value)
|
||||
StorageData & storage_data,
|
||||
const char * message,
|
||||
size_t & pos,
|
||||
size_t size,
|
||||
PostgreSQLQuery type,
|
||||
bool old_value)
|
||||
{
|
||||
Int16 num_columns = readInt16(message, pos, size);
|
||||
|
||||
/// Sanity check. In fact, it was already checked.
|
||||
if (static_cast<size_t>(num_columns) + 2 != buffer.getColumnsNum()) /// +2 -- sign and version columns
|
||||
throw Exception(ErrorCodes::POSTGRESQL_REPLICATION_INTERNAL_ERROR,
|
||||
"Number of columns does not match. Got: {}, expected {}, current buffer structure: {}",
|
||||
num_columns, buffer.getColumnsNum(), buffer.description.sample_block.dumpStructure());
|
||||
|
||||
auto proccess_column_value = [&](Int8 identifier, Int16 column_idx)
|
||||
{
|
||||
switch (identifier) // NOLINT(bugprone-switch-missing-default-case)
|
||||
{
|
||||
case 'n': /// NULL
|
||||
{
|
||||
insertDefaultValue(buffer, column_idx);
|
||||
insertDefaultValue(storage_data, column_idx);
|
||||
break;
|
||||
}
|
||||
case 't': /// Text formatted value
|
||||
@ -250,7 +293,7 @@ void MaterializedPostgreSQLConsumer::readTupleData(
|
||||
for (Int32 i = 0; i < col_len; ++i)
|
||||
value += readInt8(message, pos, size);
|
||||
|
||||
insertValue(buffer, value, column_idx);
|
||||
insertValue(storage_data, value, column_idx);
|
||||
break;
|
||||
}
|
||||
case 'u': /// TOAST value && unchanged at the same time. Actual value is not sent.
|
||||
@ -258,13 +301,13 @@ void MaterializedPostgreSQLConsumer::readTupleData(
|
||||
/// TOAST values are not supported. (TOAST values are values that are considered in postgres
|
||||
/// to be too large to be stored directly)
|
||||
LOG_WARNING(log, "Got TOAST value, which is not supported, default value will be used instead.");
|
||||
insertDefaultValue(buffer, column_idx);
|
||||
insertDefaultValue(storage_data, column_idx);
|
||||
break;
|
||||
}
|
||||
case 'b': /// Binary data.
|
||||
{
|
||||
LOG_WARNING(log, "We do not yet process this format of data, will insert default value");
|
||||
insertDefaultValue(buffer, column_idx);
|
||||
insertDefaultValue(storage_data, column_idx);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
@ -272,7 +315,7 @@ void MaterializedPostgreSQLConsumer::readTupleData(
|
||||
LOG_WARNING(log, "Unexpected identifier: {}. This is a bug! Please report an issue on github", identifier);
|
||||
chassert(false);
|
||||
|
||||
insertDefaultValue(buffer, column_idx);
|
||||
insertDefaultValue(storage_data, column_idx);
|
||||
break;
|
||||
}
|
||||
}
|
||||
@ -291,7 +334,7 @@ void MaterializedPostgreSQLConsumer::readTupleData(
|
||||
"Got error while receiving value for column {}, will insert default value. Error: {}",
|
||||
column_idx, getCurrentExceptionMessage(true));
|
||||
|
||||
insertDefaultValue(buffer, column_idx);
|
||||
insertDefaultValue(storage_data, column_idx);
|
||||
/// Let's collect only the first exception.
|
||||
/// This delaying of error throw is needed because
|
||||
/// some errors can be ignored and just logged,
|
||||
@ -301,19 +344,20 @@ void MaterializedPostgreSQLConsumer::readTupleData(
|
||||
}
|
||||
}
|
||||
|
||||
auto & columns = storage_data.getBuffer().columns;
|
||||
switch (type)
|
||||
{
|
||||
case PostgreSQLQuery::INSERT:
|
||||
{
|
||||
buffer.columns[num_columns]->insert(static_cast<Int8>(1));
|
||||
buffer.columns[num_columns + 1]->insert(lsn_value);
|
||||
columns[num_columns]->insert(static_cast<Int8>(1));
|
||||
columns[num_columns + 1]->insert(lsn_value);
|
||||
|
||||
break;
|
||||
}
|
||||
case PostgreSQLQuery::DELETE:
|
||||
{
|
||||
buffer.columns[num_columns]->insert(static_cast<Int8>(-1));
|
||||
buffer.columns[num_columns + 1]->insert(lsn_value);
|
||||
columns[num_columns]->insert(static_cast<Int8>(-1));
|
||||
columns[num_columns + 1]->insert(lsn_value);
|
||||
|
||||
break;
|
||||
}
|
||||
@ -321,11 +365,11 @@ void MaterializedPostgreSQLConsumer::readTupleData(
|
||||
{
|
||||
/// Process old value in case changed value is a primary key.
|
||||
if (old_value)
|
||||
buffer.columns[num_columns]->insert(static_cast<Int8>(-1));
|
||||
columns[num_columns]->insert(static_cast<Int8>(-1));
|
||||
else
|
||||
buffer.columns[num_columns]->insert(static_cast<Int8>(1));
|
||||
columns[num_columns]->insert(static_cast<Int8>(1));
|
||||
|
||||
buffer.columns[num_columns + 1]->insert(lsn_value);
|
||||
columns[num_columns + 1]->insert(lsn_value);
|
||||
|
||||
break;
|
||||
}
|
||||
@ -335,7 +379,6 @@ void MaterializedPostgreSQLConsumer::readTupleData(
|
||||
std::rethrow_exception(error);
|
||||
}
|
||||
|
||||
|
||||
/// https://www.postgresql.org/docs/13/protocol-logicalrep-message-formats.html
|
||||
void MaterializedPostgreSQLConsumer::processReplicationMessage(const char * replication_message, size_t size)
|
||||
{
|
||||
@ -366,10 +409,10 @@ void MaterializedPostgreSQLConsumer::processReplicationMessage(const char * repl
|
||||
return;
|
||||
|
||||
Int8 new_tuple = readInt8(replication_message, pos, size);
|
||||
auto & buffer = storages.find(table_name)->second.buffer;
|
||||
auto & storage_data = storages.find(table_name)->second;
|
||||
|
||||
if (new_tuple)
|
||||
readTupleData(buffer, replication_message, pos, size, PostgreSQLQuery::INSERT);
|
||||
readTupleData(storage_data, replication_message, pos, size, PostgreSQLQuery::INSERT);
|
||||
|
||||
break;
|
||||
}
|
||||
@ -386,7 +429,7 @@ void MaterializedPostgreSQLConsumer::processReplicationMessage(const char * repl
|
||||
if (!isSyncAllowed(relation_id, table_name))
|
||||
return;
|
||||
|
||||
auto & buffer = storages.find(table_name)->second.buffer;
|
||||
auto & storage_data = storages.find(table_name)->second;
|
||||
|
||||
auto proccess_identifier = [&](Int8 identifier) -> bool
|
||||
{
|
||||
@ -401,13 +444,13 @@ void MaterializedPostgreSQLConsumer::processReplicationMessage(const char * repl
|
||||
/// it is much more efficient to use replica identity index, but support all possible cases.
|
||||
case 'O':
|
||||
{
|
||||
readTupleData(buffer, replication_message, pos, size, PostgreSQLQuery::UPDATE, true);
|
||||
readTupleData(storage_data, replication_message, pos, size, PostgreSQLQuery::UPDATE, true);
|
||||
break;
|
||||
}
|
||||
case 'N':
|
||||
{
|
||||
/// New row.
|
||||
readTupleData(buffer, replication_message, pos, size, PostgreSQLQuery::UPDATE);
|
||||
readTupleData(storage_data, replication_message, pos, size, PostgreSQLQuery::UPDATE);
|
||||
read_next = false;
|
||||
break;
|
||||
}
|
||||
@ -441,8 +484,8 @@ void MaterializedPostgreSQLConsumer::processReplicationMessage(const char * repl
|
||||
/// 0 or 1 if replica identity is set to full. For now only default replica identity is supported (with primary keys).
|
||||
readInt8(replication_message, pos, size);
|
||||
|
||||
auto & buffer = storages.find(table_name)->second.buffer;
|
||||
readTupleData(buffer, replication_message, pos, size, PostgreSQLQuery::DELETE);
|
||||
auto & storage_data = storages.find(table_name)->second;
|
||||
readTupleData(storage_data, replication_message, pos, size, PostgreSQLQuery::DELETE);
|
||||
break;
|
||||
}
|
||||
case 'C': // Commit
|
||||
@ -490,8 +533,6 @@ void MaterializedPostgreSQLConsumer::processReplicationMessage(const char * repl
|
||||
return;
|
||||
}
|
||||
|
||||
auto & buffer = storage_iter->second.buffer;
|
||||
|
||||
/// 'd' - default (primary key if any)
|
||||
/// 'n' - nothing
|
||||
/// 'f' - all columns (set replica identity full)
|
||||
@ -509,29 +550,13 @@ void MaterializedPostgreSQLConsumer::processReplicationMessage(const char * repl
|
||||
|
||||
Int16 num_columns = readInt16(replication_message, pos, size);
|
||||
|
||||
if (static_cast<size_t>(num_columns) + 2 != buffer.getColumnsNum()) /// +2 -- sign and version columns
|
||||
{
|
||||
markTableAsSkipped(relation_id, table_name);
|
||||
return;
|
||||
}
|
||||
|
||||
if (static_cast<size_t>(num_columns) != buffer.attributes.size())
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
throw Exception(ErrorCodes::LOGICAL_ERROR,
|
||||
"Mismatch in attributes size. Got {}, expected {}. It's a bug. Current buffer structure: {}",
|
||||
num_columns, buffer.attributes.size(), buffer.description.sample_block.dumpStructure());
|
||||
#else
|
||||
LOG_ERROR(log, "Mismatch in attributes size. Got {}, expected {}. It's a bug. Current buffer structure: {}",
|
||||
num_columns, buffer.attributes.size(), buffer.description.sample_block.dumpStructure());
|
||||
markTableAsSkipped(relation_id, table_name);
|
||||
return;
|
||||
#endif
|
||||
}
|
||||
|
||||
Int32 data_type_id;
|
||||
Int32 type_modifier; /// For example, n in varchar(n)
|
||||
|
||||
auto & storage_data = storage_iter->second;
|
||||
const auto & description = storage_data.table_description;
|
||||
|
||||
ColumnsWithTypeAndName columns;
|
||||
for (uint16_t i = 0; i < num_columns; ++i)
|
||||
{
|
||||
String column_name;
|
||||
@ -541,13 +566,22 @@ void MaterializedPostgreSQLConsumer::processReplicationMessage(const char * repl
|
||||
data_type_id = readInt32(replication_message, pos, size);
|
||||
type_modifier = readInt32(replication_message, pos, size);
|
||||
|
||||
if (buffer.attributes[i].atttypid != data_type_id || buffer.attributes[i].atttypmod != type_modifier)
|
||||
columns.push_back(description.sample_block.getByName(column_name));
|
||||
|
||||
const auto & attributes_it = storage_data.columns_attributes.find(column_name);
|
||||
if (attributes_it == storage_data.columns_attributes.end())
|
||||
throw Exception(ErrorCodes::LOGICAL_ERROR, "Unknown column: {}", column_name);
|
||||
|
||||
const auto & attributes = attributes_it->second;
|
||||
if (attributes.atttypid != data_type_id || attributes.atttypmod != type_modifier)
|
||||
{
|
||||
LOG_TEST(log, "Column {} has a different type", column_name);
|
||||
markTableAsSkipped(relation_id, table_name);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
storage_data.setBuffer(std::make_unique<StorageData::Buffer>(std::move(columns), description));
|
||||
tables_to_sync.insert(table_name);
|
||||
break;
|
||||
}
|
||||
@ -563,7 +597,6 @@ void MaterializedPostgreSQLConsumer::processReplicationMessage(const char * repl
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void MaterializedPostgreSQLConsumer::syncTables()
|
||||
{
|
||||
size_t synced_tables = 0;
|
||||
@ -571,8 +604,8 @@ void MaterializedPostgreSQLConsumer::syncTables()
|
||||
{
|
||||
auto table_name = *tables_to_sync.begin();
|
||||
auto & storage_data = storages.find(table_name)->second;
|
||||
Block result_rows = storage_data.buffer.description.sample_block.cloneWithColumns(std::move(storage_data.buffer.columns));
|
||||
storage_data.buffer.columns = storage_data.buffer.description.sample_block.cloneEmptyColumns();
|
||||
auto & buffer = storage_data.getBuffer();
|
||||
Block result_rows = buffer.sample_block.cloneWithColumns(std::move(buffer.columns));
|
||||
|
||||
try
|
||||
{
|
||||
@ -585,7 +618,7 @@ void MaterializedPostgreSQLConsumer::syncTables()
|
||||
|
||||
auto insert = std::make_shared<ASTInsertQuery>();
|
||||
insert->table_id = storage->getStorageID();
|
||||
insert->columns = storage_data.buffer.columns_ast;
|
||||
insert->columns = std::make_shared<ASTExpressionList>(buffer.columns_ast);
|
||||
|
||||
InterpreterInsertQuery interpreter(insert, insert_context, true);
|
||||
auto io = interpreter.execute();
|
||||
@ -603,10 +636,11 @@ void MaterializedPostgreSQLConsumer::syncTables()
|
||||
catch (...)
|
||||
{
|
||||
/// Retry this buffer later.
|
||||
storage_data.buffer.columns = result_rows.mutateColumns();
|
||||
buffer.columns = result_rows.mutateColumns();
|
||||
throw;
|
||||
}
|
||||
|
||||
storage_data.setBuffer(nullptr);
|
||||
tables_to_sync.erase(tables_to_sync.begin());
|
||||
}
|
||||
|
||||
@ -616,7 +650,6 @@ void MaterializedPostgreSQLConsumer::syncTables()
|
||||
updateLsn();
|
||||
}
|
||||
|
||||
|
||||
void MaterializedPostgreSQLConsumer::updateLsn()
|
||||
{
|
||||
try
|
||||
@ -632,7 +665,6 @@ void MaterializedPostgreSQLConsumer::updateLsn()
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
String MaterializedPostgreSQLConsumer::advanceLSN(std::shared_ptr<pqxx::nontransaction> tx)
|
||||
{
|
||||
std::string query_str = fmt::format("SELECT end_lsn FROM pg_replication_slot_advance('{}', '{}')", replication_slot_name, final_lsn);
|
||||
@ -644,7 +676,6 @@ String MaterializedPostgreSQLConsumer::advanceLSN(std::shared_ptr<pqxx::nontrans
|
||||
return final_lsn;
|
||||
}
|
||||
|
||||
|
||||
/// Sync for some table might not be allowed if:
|
||||
/// 1. Table schema changed and might break synchronization.
|
||||
/// 2. There is no storage for this table. (As a result of some exception or incorrect pg_publication)
|
||||
@ -700,7 +731,6 @@ bool MaterializedPostgreSQLConsumer::isSyncAllowed(Int32 relation_id, const Stri
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
void MaterializedPostgreSQLConsumer::markTableAsSkipped(Int32 relation_id, const String & relation_name)
|
||||
{
|
||||
skip_list.insert({relation_id, ""}); /// Empty lsn string means - continue waiting for valid lsn.
|
||||
@ -712,12 +742,11 @@ void MaterializedPostgreSQLConsumer::markTableAsSkipped(Int32 relation_id, const
|
||||
relation_name, relation_id);
|
||||
}
|
||||
|
||||
|
||||
void MaterializedPostgreSQLConsumer::addNested(
|
||||
const String & postgres_table_name, StorageInfo nested_storage_info, const String & table_start_lsn)
|
||||
{
|
||||
assert(!storages.contains(postgres_table_name));
|
||||
storages.emplace(postgres_table_name, nested_storage_info);
|
||||
storages.emplace(postgres_table_name, StorageData(nested_storage_info, log));
|
||||
|
||||
auto it = deleted_tables.find(postgres_table_name);
|
||||
if (it != deleted_tables.end())
|
||||
@ -728,17 +757,15 @@ void MaterializedPostgreSQLConsumer::addNested(
|
||||
waiting_list[postgres_table_name] = table_start_lsn;
|
||||
}
|
||||
|
||||
|
||||
void MaterializedPostgreSQLConsumer::updateNested(const String & table_name, StorageInfo nested_storage_info, Int32 table_id, const String & table_start_lsn)
|
||||
{
|
||||
assert(!storages.contains(table_name));
|
||||
storages.emplace(table_name, nested_storage_info);
|
||||
storages.emplace(table_name, StorageData(nested_storage_info, log));
|
||||
|
||||
/// Set start position to valid lsn. Before it was an empty string. Further read for table allowed, if it has a valid lsn.
|
||||
skip_list[table_id] = table_start_lsn;
|
||||
}
|
||||
|
||||
|
||||
void MaterializedPostgreSQLConsumer::removeNested(const String & postgres_table_name)
|
||||
{
|
||||
auto it = storages.find(postgres_table_name);
|
||||
@ -747,7 +774,6 @@ void MaterializedPostgreSQLConsumer::removeNested(const String & postgres_table_
|
||||
deleted_tables.insert(postgres_table_name);
|
||||
}
|
||||
|
||||
|
||||
void MaterializedPostgreSQLConsumer::setSetting(const SettingChange & setting)
|
||||
{
|
||||
if (setting.name == "materialized_postgresql_max_block_size")
|
||||
@ -756,7 +782,6 @@ void MaterializedPostgreSQLConsumer::setSetting(const SettingChange & setting)
|
||||
throw Exception(ErrorCodes::BAD_ARGUMENTS, "Unsupported setting: {}", setting.name);
|
||||
}
|
||||
|
||||
|
||||
/// Read binary changes from replication slot via COPY command (starting from current lsn in a slot).
|
||||
bool MaterializedPostgreSQLConsumer::consume()
|
||||
{
|
||||
|
||||
@ -32,32 +32,36 @@ class MaterializedPostgreSQLConsumer
|
||||
private:
|
||||
struct StorageData
|
||||
{
|
||||
explicit StorageData(const StorageInfo & storage_info, Poco::Logger * log_);
|
||||
|
||||
size_t getColumnsNum() const { return table_description.sample_block.columns(); }
|
||||
|
||||
const Block & getSampleBlock() const { return table_description.sample_block; }
|
||||
|
||||
using ArrayInfo = std::unordered_map<size_t, PostgreSQLArrayInfo>;
|
||||
|
||||
const StoragePtr storage;
|
||||
const ExternalResultDescription table_description;
|
||||
const PostgreSQLTableStructure::Attributes columns_attributes;
|
||||
const ArrayInfo array_info;
|
||||
|
||||
struct Buffer
|
||||
{
|
||||
ExternalResultDescription description;
|
||||
Block sample_block;
|
||||
MutableColumns columns;
|
||||
ASTExpressionList columns_ast;
|
||||
|
||||
/// Needed to pass to insert query columns list in syncTables().
|
||||
std::shared_ptr<ASTExpressionList> columns_ast;
|
||||
/// Needed for insertPostgreSQLValue() method to parse array
|
||||
std::unordered_map<size_t, PostgreSQLArrayInfo> array_info;
|
||||
/// To validate ddl.
|
||||
PostgreSQLTableStructure::Attributes attributes;
|
||||
explicit Buffer(ColumnsWithTypeAndName && columns_, const ExternalResultDescription & table_description_);
|
||||
|
||||
Buffer(StorageMetadataPtr storage_metadata, const PostgreSQLTableStructure::Attributes & attributes_);
|
||||
|
||||
size_t getColumnsNum() const
|
||||
{
|
||||
const auto & sample_block = description.sample_block;
|
||||
return sample_block.columns();
|
||||
}
|
||||
void assertInsertIsPossible(size_t col_idx) const;
|
||||
};
|
||||
|
||||
StoragePtr storage;
|
||||
Buffer buffer;
|
||||
Buffer & getBuffer();
|
||||
|
||||
explicit StorageData(const StorageInfo & storage_info);
|
||||
StorageData(const StorageData & other) = delete;
|
||||
void setBuffer(std::unique_ptr<Buffer> buffer_) { buffer = std::move(buffer_); }
|
||||
|
||||
private:
|
||||
std::unique_ptr<Buffer> buffer;
|
||||
};
|
||||
|
||||
using Storages = std::unordered_map<String, StorageData>;
|
||||
@ -97,8 +101,8 @@ private:
|
||||
|
||||
bool isSyncAllowed(Int32 relation_id, const String & relation_name);
|
||||
|
||||
static void insertDefaultValue(StorageData::Buffer & buffer, size_t column_idx);
|
||||
void insertValue(StorageData::Buffer & buffer, const std::string & value, size_t column_idx);
|
||||
static void insertDefaultValue(StorageData & storage_data, size_t column_idx);
|
||||
void insertValue(StorageData & storage_data, const std::string & value, size_t column_idx);
|
||||
|
||||
enum class PostgreSQLQuery
|
||||
{
|
||||
@ -107,7 +111,7 @@ private:
|
||||
DELETE
|
||||
};
|
||||
|
||||
void readTupleData(StorageData::Buffer & buffer, const char * message, size_t & pos, size_t size, PostgreSQLQuery type, bool old_value = false);
|
||||
void readTupleData(StorageData & storage_data, const char * message, size_t & pos, size_t size, PostgreSQLQuery type, bool old_value = false);
|
||||
|
||||
template<typename T>
|
||||
static T unhexN(const char * message, size_t pos, size_t n);
|
||||
@ -119,8 +123,6 @@ private:
|
||||
|
||||
void markTableAsSkipped(Int32 relation_id, const String & relation_name);
|
||||
|
||||
static void assertCorrectInsertion(StorageData::Buffer & buffer, size_t column_idx);
|
||||
|
||||
/// lsn - log sequence number, like wal offset (64 bit).
|
||||
static Int64 getLSNValue(const std::string & lsn)
|
||||
{
|
||||
|
||||
@ -337,6 +337,7 @@ void PostgreSQLReplicationHandler::startSynchronization(bool throw_on_error)
|
||||
dropReplicationSlot(tx);
|
||||
|
||||
initial_sync();
|
||||
LOG_DEBUG(log, "Loaded {} tables", nested_storages.size());
|
||||
}
|
||||
/// Synchronization and initial load already took place - do not create any new tables, just fetch StoragePtr's
|
||||
/// and pass them to replication consumer.
|
||||
@ -414,16 +415,18 @@ StorageInfo PostgreSQLReplicationHandler::loadFromSnapshot(postgres::Connection
|
||||
std::string query_str = fmt::format("SET TRANSACTION SNAPSHOT '{}'", snapshot_name);
|
||||
tx->exec(query_str);
|
||||
|
||||
auto table_structure = fetchTableStructure(*tx, table_name);
|
||||
if (!table_structure->physical_columns)
|
||||
throw Exception(ErrorCodes::LOGICAL_ERROR, "No table attributes");
|
||||
|
||||
auto table_attributes = table_structure->physical_columns->attributes;
|
||||
|
||||
/// Load from snapshot, which will show table state before creation of replication slot.
|
||||
/// Already connected to needed database, no need to add it to query.
|
||||
auto quoted_name = doubleQuoteWithSchema(table_name);
|
||||
query_str = fmt::format("SELECT * FROM ONLY {}", quoted_name);
|
||||
LOG_DEBUG(log, "Loading PostgreSQL table {}.{}", postgres_database, quoted_name);
|
||||
|
||||
auto table_structure = fetchTableStructure(*tx, table_name);
|
||||
if (!table_structure->physical_columns)
|
||||
throw Exception(ErrorCodes::LOGICAL_ERROR, "No table attributes");
|
||||
auto table_attributes = table_structure->physical_columns->attributes;
|
||||
LOG_DEBUG(log, "Loading PostgreSQL table {}.{}", postgres_database, quoted_name);
|
||||
|
||||
auto table_override = tryGetTableOverride(current_database_name, table_name);
|
||||
materialized_storage->createNestedIfNeeded(std::move(table_structure), table_override ? table_override->as<ASTTableOverride>() : nullptr);
|
||||
@ -444,12 +447,16 @@ StorageInfo PostgreSQLReplicationHandler::loadFromSnapshot(postgres::Connection
|
||||
assertBlocksHaveEqualStructure(input->getPort().getHeader(), block_io.pipeline.getHeader(), "postgresql replica load from snapshot");
|
||||
block_io.pipeline.complete(Pipe(std::move(input)));
|
||||
|
||||
/// TODO: make a test when we fail in the middle of inserting data from source.
|
||||
|
||||
CompletedPipelineExecutor executor(block_io.pipeline);
|
||||
executor.execute();
|
||||
|
||||
materialized_storage->set(nested_storage);
|
||||
auto nested_table_id = nested_storage->getStorageID();
|
||||
LOG_DEBUG(log, "Loaded table {}.{} (uuid: {})", nested_table_id.database_name, nested_table_id.table_name, toString(nested_table_id.uuid));
|
||||
|
||||
LOG_DEBUG(log, "Loaded table {}.{} (uuid: {})",
|
||||
nested_table_id.database_name, nested_table_id.table_name, toString(nested_table_id.uuid));
|
||||
|
||||
return StorageInfo(nested_storage, std::move(table_attributes));
|
||||
}
|
||||
|
||||
@ -25,6 +25,8 @@
|
||||
#include <Parsers/ASTFunction.h>
|
||||
#include <Parsers/ASTIdentifier.h>
|
||||
#include <Parsers/ASTTablesInSelectQuery.h>
|
||||
#include <Parsers/ExpressionListParsers.h>
|
||||
#include <Parsers/formatAST.h>
|
||||
|
||||
#include <Interpreters/applyTableOverride.h>
|
||||
#include <Interpreters/InterpreterDropQuery.h>
|
||||
@ -195,7 +197,8 @@ void StorageMaterializedPostgreSQL::createNestedIfNeeded(PostgreSQLTableStructur
|
||||
const auto ast_create = getCreateNestedTableQuery(std::move(table_structure), table_override);
|
||||
auto table_id = getStorageID();
|
||||
auto tmp_nested_table_id = StorageID(table_id.database_name, getNestedTableName());
|
||||
LOG_DEBUG(log, "Creating clickhouse table for postgresql table {}", table_id.getNameForLogs());
|
||||
LOG_DEBUG(log, "Creating clickhouse table for postgresql table {} (ast: {})",
|
||||
table_id.getNameForLogs(), serializeAST(*ast_create));
|
||||
|
||||
InterpreterCreateQuery interpreter(ast_create, nested_context);
|
||||
interpreter.execute();
|
||||
@ -359,7 +362,8 @@ ASTPtr StorageMaterializedPostgreSQL::getColumnDeclaration(const DataTypePtr & d
|
||||
}
|
||||
|
||||
|
||||
std::shared_ptr<ASTExpressionList> StorageMaterializedPostgreSQL::getColumnsExpressionList(const NamesAndTypesList & columns) const
|
||||
std::shared_ptr<ASTExpressionList>
|
||||
StorageMaterializedPostgreSQL::getColumnsExpressionList(const NamesAndTypesList & columns, std::unordered_map<std::string, ASTPtr> defaults) const
|
||||
{
|
||||
auto columns_expression_list = std::make_shared<ASTExpressionList>();
|
||||
for (const auto & [name, type] : columns)
|
||||
@ -369,6 +373,12 @@ std::shared_ptr<ASTExpressionList> StorageMaterializedPostgreSQL::getColumnsExpr
|
||||
column_declaration->name = name;
|
||||
column_declaration->type = getColumnDeclaration(type);
|
||||
|
||||
if (auto it = defaults.find(name); it != defaults.end())
|
||||
{
|
||||
column_declaration->default_expression = it->second;
|
||||
column_declaration->default_specifier = "DEFAULT";
|
||||
}
|
||||
|
||||
columns_expression_list->children.emplace_back(column_declaration);
|
||||
}
|
||||
return columns_expression_list;
|
||||
@ -460,8 +470,28 @@ ASTPtr StorageMaterializedPostgreSQL::getCreateNestedTableQuery(
|
||||
}
|
||||
else
|
||||
{
|
||||
ordinary_columns_and_types = table_structure->physical_columns->columns;
|
||||
columns_declare_list->set(columns_declare_list->columns, getColumnsExpressionList(ordinary_columns_and_types));
|
||||
const auto columns = table_structure->physical_columns;
|
||||
std::unordered_map<std::string, ASTPtr> defaults;
|
||||
for (const auto & col : columns->columns)
|
||||
{
|
||||
const auto & attr = columns->attributes.at(col.name);
|
||||
if (!attr.attr_def.empty())
|
||||
{
|
||||
ParserExpression expr_parser;
|
||||
Expected expected;
|
||||
ASTPtr result;
|
||||
|
||||
Tokens tokens(attr.attr_def.data(), attr.attr_def.data() + attr.attr_def.size());
|
||||
IParser::Pos pos(tokens, DBMS_DEFAULT_MAX_PARSER_DEPTH);
|
||||
if (!expr_parser.parse(pos, result, expected))
|
||||
{
|
||||
throw Exception(ErrorCodes::BAD_ARGUMENTS, "Failed to parse default expression: {}", attr.attr_def);
|
||||
}
|
||||
defaults.emplace(col.name, result);
|
||||
}
|
||||
}
|
||||
ordinary_columns_and_types = columns->columns;
|
||||
columns_declare_list->set(columns_declare_list->columns, getColumnsExpressionList(ordinary_columns_and_types, defaults));
|
||||
}
|
||||
|
||||
if (ordinary_columns_and_types.empty())
|
||||
|
||||
@ -109,7 +109,8 @@ public:
|
||||
|
||||
ASTPtr getCreateNestedTableQuery(PostgreSQLTableStructurePtr table_structure, const ASTTableOverride * table_override);
|
||||
|
||||
std::shared_ptr<ASTExpressionList> getColumnsExpressionList(const NamesAndTypesList & columns) const;
|
||||
std::shared_ptr<ASTExpressionList> getColumnsExpressionList(
|
||||
const NamesAndTypesList & columns, std::unordered_map<std::string, ASTPtr> defaults = {}) const;
|
||||
|
||||
StoragePtr getNested() const;
|
||||
|
||||
|
||||
@ -810,6 +810,150 @@ def test_replica_consumer(started_cluster):
|
||||
pg_manager_instance2.clear()
|
||||
|
||||
|
||||
def test_replica_consumer(started_cluster):
|
||||
table = "test_replica_consumer"
|
||||
pg_manager_instance2.restart()
|
||||
|
||||
pg_manager.create_postgres_table(table)
|
||||
instance.query(
|
||||
f"INSERT INTO postgres_database.{table} SELECT number, number from numbers(0, 50)"
|
||||
)
|
||||
|
||||
for pm in [pg_manager, pg_manager_instance2]:
|
||||
pm.create_materialized_db(
|
||||
ip=started_cluster.postgres_ip,
|
||||
port=started_cluster.postgres_port,
|
||||
settings=[
|
||||
f"materialized_postgresql_tables_list = '{table}'",
|
||||
"materialized_postgresql_backoff_min_ms = 100",
|
||||
"materialized_postgresql_backoff_max_ms = 100",
|
||||
"materialized_postgresql_use_unique_replication_consumer_identifier = 1",
|
||||
],
|
||||
)
|
||||
|
||||
check_tables_are_synchronized(
|
||||
instance, table, postgres_database=pg_manager.get_default_database()
|
||||
)
|
||||
check_tables_are_synchronized(
|
||||
instance2, table, postgres_database=pg_manager_instance2.get_default_database()
|
||||
)
|
||||
|
||||
assert 50 == int(instance.query(f"SELECT count() FROM test_database.{table}"))
|
||||
assert 50 == int(instance2.query(f"SELECT count() FROM test_database.{table}"))
|
||||
|
||||
instance.query(
|
||||
f"INSERT INTO postgres_database.{table} SELECT number, number from numbers(1000, 1000)"
|
||||
)
|
||||
|
||||
check_tables_are_synchronized(
|
||||
instance, table, postgres_database=pg_manager.get_default_database()
|
||||
)
|
||||
check_tables_are_synchronized(
|
||||
instance2, table, postgres_database=pg_manager_instance2.get_default_database()
|
||||
)
|
||||
|
||||
assert 1050 == int(instance.query(f"SELECT count() FROM test_database.{table}"))
|
||||
assert 1050 == int(instance2.query(f"SELECT count() FROM test_database.{table}"))
|
||||
|
||||
for pm in [pg_manager, pg_manager_instance2]:
|
||||
pm.drop_materialized_db()
|
||||
pg_manager_instance2.clear()
|
||||
|
||||
|
||||
def test_generated_columns(started_cluster):
|
||||
table = "test_generated_columns"
|
||||
|
||||
pg_manager.create_postgres_table(
|
||||
table,
|
||||
"",
|
||||
f"""CREATE TABLE {table} (
|
||||
key integer PRIMARY KEY,
|
||||
x integer,
|
||||
y integer GENERATED ALWAYS AS (x*2) STORED,
|
||||
z text);
|
||||
""",
|
||||
)
|
||||
|
||||
pg_manager.execute(f"insert into {table} (key, x, z) values (1,1,'1');")
|
||||
pg_manager.execute(f"insert into {table} (key, x, z) values (2,2,'2');")
|
||||
|
||||
pg_manager.create_materialized_db(
|
||||
ip=started_cluster.postgres_ip,
|
||||
port=started_cluster.postgres_port,
|
||||
settings=[
|
||||
f"materialized_postgresql_tables_list = '{table}'",
|
||||
"materialized_postgresql_backoff_min_ms = 100",
|
||||
"materialized_postgresql_backoff_max_ms = 100",
|
||||
],
|
||||
)
|
||||
|
||||
check_tables_are_synchronized(
|
||||
instance, table, postgres_database=pg_manager.get_default_database()
|
||||
)
|
||||
|
||||
pg_manager.execute(f"insert into {table} (key, x, z) values (3,3,'3');")
|
||||
pg_manager.execute(f"insert into {table} (key, x, z) values (4,4,'4');")
|
||||
|
||||
check_tables_are_synchronized(
|
||||
instance, table, postgres_database=pg_manager.get_default_database()
|
||||
)
|
||||
|
||||
pg_manager.execute(f"insert into {table} (key, x, z) values (5,5,'5');")
|
||||
pg_manager.execute(f"insert into {table} (key, x, z) values (6,6,'6');")
|
||||
|
||||
check_tables_are_synchronized(
|
||||
instance, table, postgres_database=pg_manager.get_default_database()
|
||||
)
|
||||
|
||||
|
||||
def test_default_columns(started_cluster):
|
||||
table = "test_default_columns"
|
||||
|
||||
pg_manager.create_postgres_table(
|
||||
table,
|
||||
"",
|
||||
f"""CREATE TABLE {table} (
|
||||
key integer PRIMARY KEY,
|
||||
x integer,
|
||||
y text DEFAULT 'y1',
|
||||
z integer,
|
||||
a text DEFAULT 'a1',
|
||||
b integer);
|
||||
""",
|
||||
)
|
||||
|
||||
pg_manager.execute(f"insert into {table} (key, x, z, b) values (1,1,1,1);")
|
||||
pg_manager.execute(f"insert into {table} (key, x, z, b) values (2,2,2,2);")
|
||||
|
||||
pg_manager.create_materialized_db(
|
||||
ip=started_cluster.postgres_ip,
|
||||
port=started_cluster.postgres_port,
|
||||
settings=[
|
||||
f"materialized_postgresql_tables_list = '{table}'",
|
||||
"materialized_postgresql_backoff_min_ms = 100",
|
||||
"materialized_postgresql_backoff_max_ms = 100",
|
||||
],
|
||||
)
|
||||
|
||||
check_tables_are_synchronized(
|
||||
instance, table, postgres_database=pg_manager.get_default_database()
|
||||
)
|
||||
|
||||
pg_manager.execute(f"insert into {table} (key, x, z, b) values (3,3,3,3);")
|
||||
pg_manager.execute(f"insert into {table} (key, x, z, b) values (4,4,4,4);")
|
||||
|
||||
check_tables_are_synchronized(
|
||||
instance, table, postgres_database=pg_manager.get_default_database()
|
||||
)
|
||||
|
||||
pg_manager.execute(f"insert into {table} (key, x, z, b) values (5,5,5,5);")
|
||||
pg_manager.execute(f"insert into {table} (key, x, z, b) values (6,6,6,6);")
|
||||
|
||||
check_tables_are_synchronized(
|
||||
instance, table, postgres_database=pg_manager.get_default_database()
|
||||
)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
cluster.start()
|
||||
input("Cluster created, press any key to destroy...")
|
||||
|
||||
Loading…
Reference in New Issue
Block a user