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ed5b521110
* Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2].
69 lines
1.4 KiB
C++
69 lines
1.4 KiB
C++
#pragma once
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#include <DB/Dictionaries/IDictionarySource.h>
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#include <DB/Dictionaries/ExternalQueryBuilder.h>
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#include <DB/Dictionaries/DictionaryStructure.h>
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namespace Poco
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{
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namespace Data
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{
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class SessionPool;
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}
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namespace Util
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{
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class AbstractConfiguration;
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}
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class Logger;
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}
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namespace DB
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{
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/// Allows loading dictionaries from a ODBC source
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class ODBCDictionarySource final : public IDictionarySource
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{
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public:
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ODBCDictionarySource(const DictionaryStructure & dict_struct_,
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const Poco::Util::AbstractConfiguration & config, const std::string & config_prefix,
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const Block & sample_block);
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/// copy-constructor is provided in order to support cloneability
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ODBCDictionarySource(const ODBCDictionarySource & other);
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BlockInputStreamPtr loadAll() override;
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BlockInputStreamPtr loadIds(const std::vector<UInt64> & ids) override;
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BlockInputStreamPtr loadKeys(
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const ConstColumnPlainPtrs & key_columns, const std::vector<std::size_t> & requested_rows) override;
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bool isModified() const override;
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bool supportsSelectiveLoad() const override;
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DictionarySourcePtr clone() const override;
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std::string toString() const override;
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private:
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Poco::Logger * log;
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const DictionaryStructure dict_struct;
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const std::string db;
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const std::string table;
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const std::string where;
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Block sample_block;
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std::shared_ptr<Poco::Data::SessionPool> pool;
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ExternalQueryBuilder query_builder;
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const std::string load_all_query;
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};
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}
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