71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
#pragma once
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#include "index.h"
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#include "parser.h"
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#include "row.h"
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#include <vector>
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#include <iterator> // For std::forward_iterator_tag
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#include <cstddef> // For std::ptrdiff_t
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namespace usql {
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//using IndexValue=std::variant<ColNullValue, ColIntegerValue, ColStringValue>;
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using IndexValue=std::variant<long, std::string>;
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struct Table {
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Table(const Table &other);
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Table(const std::string& name, const std::vector<ColDefNode>& columns);
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ColDefNode get_column_def(const std::string &col_name);
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ColDefNode get_column_def(int col_index);
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[[nodiscard]] int columns_count() const { return (int) m_col_defs.size(); };
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[[nodiscard]] size_t rows_count() const { return m_rows.size(); };
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Row& create_empty_row();
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void commit_row(const Row &row);
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void commit_copy_of_row(const Row &row);
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Row& get_row(int rowid) { return m_rows[rowid]; };
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static void validate_column(const ColDefNode *col_def, ValueNode *col_val);
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static void validate_column(const ColDefNode *col_def, ColValue &col_val);
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void validate_row(const Row &row);
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std::string csv_string();
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int load_csv_string(const std::string &content);
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int load_csv_file(const std::string &filename);
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void print();
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std::string m_name;
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std::vector<ColDefNode> m_col_defs;
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std::vector<Row> m_rows;
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std::vector<Index<IndexValue>> m_indexes;
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static long string_to_long(const std::string &s);
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static double string_to_double(const std::string &s);
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void create_row_from_vector(const std::vector<ColDefNode> &colDefs, const std::vector<std::string> &csv_line);
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void create_index(const Index<IndexValue>& index);
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void drop_index(const std::string &column);
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void index_row(Index<IndexValue> &index, const Row &row, const size_t rowid);
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void index_row(const Row &row, const size_t rowid);
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void index_rows(const std::string &index_name);
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Index<IndexValue> * get_index(const std::string &index_name);
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Index<IndexValue> * get_index_for_column(const std::string &col_name);
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std::vector<int> index_search(const std::string &col_name, IndexValue key);
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typedef std::vector<Row>::iterator iterator;
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iterator fs_begin() { return m_rows.begin(); }
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iterator fs_end() { return m_rows.end(); }
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};
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} // namespace
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