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#pragma once
#include "clickhouse_config.h"
#if USE_SQLITE
#include <Core/ExternalResultDescription.h>
#include <Processors/ISource.h>
#error #include <sqlite3.h>
namespace DB
{
class SQLiteSource : public ISource
{
using SQLitePtr = std::shared_ptr<sqlite3>;
public:
SQLiteSource(SQLitePtr sqlite_db_, const String & query_str_, const Block & sample_block, UInt64 max_block_size_);
String getName() const override { return "SQLite"; }
private:
using ValueType = ExternalResultDescription::ValueType;
struct StatementDeleter
{
void operator()(sqlite3_stmt * stmt) { sqlite3_finalize(stmt); }
};
Chunk generate() override;
void insertValue(IColumn & column, ExternalResultDescription::ValueType type, int idx);
String query_str;
UInt64 max_block_size;
ExternalResultDescription description;
SQLitePtr sqlite_db;
std::unique_ptr<sqlite3_stmt, StatementDeleter> compiled_statement;
};
}
#endif
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