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implemented prepared statement for postgres and sqlite

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sascha
2023-12-09 11:08:03 +01:00
parent 8ba70cc79e
commit da423ea8bb
59 changed files with 1769 additions and 314 deletions
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include/matador/sql/dialect.hpp
+24 -19
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@@ -4,6 +4,7 @@
#include "matador/sql/types.hpp"
#include <cstdint>
#include <functional>
#include <string>
#include <unordered_map>
#include <vector>
@@ -12,7 +13,7 @@ namespace matador::sql {
class column;
class dialect
class dialect final
{
public:
enum class token_t : uint8_t
@@ -65,14 +66,11 @@ public:
using data_type_to_string_map = std::unordered_map<data_type_t, std::string>;
using sql_func_to_string_map = std::unordered_map<sql_function_t, std::string>;
public:
dialect() = default;
dialect(const token_to_string_map &token_replace_map, const data_type_to_string_map &data_type_replace_map);
explicit dialect(const data_type_to_string_map &data_type_replace_map);
explicit dialect(const token_to_string_map &token_replace_map);
using next_placeholder_func = std::function<std::string(size_t)>;
const std::string& token_at(token_t token) const;
const std::string& data_type_at(data_type_t type) const;
public:
[[nodiscard]] const std::string& token_at(token_t token) const;
[[nodiscard]] const std::string& data_type_at(data_type_t type) const;
/**
* Prepare sql dialect identifier for execution
@@ -82,14 +80,14 @@ public:
* @param str The identifier string to be prepared
* @return The prepared string
*/
std::string prepare_identifier(const column &col) const;
[[nodiscard]] std::string prepare_identifier(const column &col) const;
/**
* Prepare string literal
*
* @param str String literal to be prepared
*/
std::string prepare_literal(const std::string &str) const;
[[nodiscard]] std::string prepare_literal(const std::string &str) const;
/**
* Wrap identifier quotes around a sql identifier keyword
@@ -118,7 +116,7 @@ public:
*
* @return How the identifier quotes should be escaped
*/
virtual escape_identifier_t identifier_escape_type() const;
[[nodiscard]] virtual escape_identifier_t identifier_escape_type() const;
/**
* Generates a next placeholder string. default is
@@ -126,17 +124,24 @@ public:
*
* @return Placeholder string
*/
virtual std::string next_placeholder() const;
[[nodiscard]] std::string next_placeholder(const std::vector<std::string> &bind_vars) const;
void add_host_var(const std::string &host_var);
void add_column(const std::string &column);
const std::vector<std::string>& host_vars() const;
const std::vector<std::string>& columns() const;
/**
* Returns the default schema name.
*
* @return The default schema name.
*/
[[nodiscard]] std::string default_schema_name() const;
private:
std::vector<std::string> host_vars_;
std::vector<std::string> columns_;
dialect() = default;
private:
friend class dialect_builder;
next_placeholder_func placeholder_func_ = [](size_t) { return "?"; };
std::string default_schema_name_;
token_to_string_map tokens_ {
{token_t::CREATE, "CREATE"},