Add a DEBUG_SQL_QUERIES to log info about the executed SQL queries

fix #3324

src/database/count_query.hpp

@@ -16,6 +16,9 @@ struct CountQuery: public Query
 
     int64_t execute(DatabaseEngine& db)
     {
+#ifdef DEBUG_SQL_QUERIES
+      const auto timer = this->log_and_time();
+#endif
       auto statement = db.prepare(this->body);
       int64_t res = 0;
       if (statement->step() != StepResult::Error)

src/database/insert_query.hpp

@@ -39,6 +39,10 @@ struct InsertQuery: public Query
   template <typename... T>
   void execute(DatabaseEngine& db, std::tuple<T...>& columns)
   {
+#ifdef DEBUG_SQL_QUERIES
+    const auto timer = this->log_and_time();
+#endif
+
     auto statement = db.prepare(this->body);
     this->bind_param(columns, *statement);
 

src/database/postgresql_engine.cpp

@@ -3,6 +3,8 @@
 
 #include <utils/scopeguard.hpp>
 
+#include <database/query.hpp>
+
 #include <database/postgresql_engine.hpp>
 
 #include <database/postgresql_statement.hpp>
@@ -51,6 +53,10 @@ std::set<std::string> PostgresqlEngine::get_all_columns_from_table(const std::st
 
 std::tuple<bool, std::string> PostgresqlEngine::raw_exec(const std::string& query)
 {
+#ifdef DEBUG_SQL_QUERIES
+  log_debug("SQL QUERY: ", query);
+  const auto timer = make_sql_timer();
+#endif
   PGresult* res = PQexec(this->conn, query.data());
   auto sg = utils::make_scope_guard([res](){
       PQclear(res);

src/database/query.hpp

@@ -1,5 +1,7 @@
 #pragma once
 
+#include <biboumi.h>
+
 #include <utils/optional_bool.hpp>
 #include <database/statement.hpp>
 #include <database/column.hpp>
@@ -13,6 +15,20 @@ void actual_bind(Statement& statement, const std::string& value, int index);
 void actual_bind(Statement& statement, const std::size_t value, int index);
 void actual_bind(Statement& statement, const OptionalBool& value, int index);
 
+#ifdef DEBUG_SQL_QUERIES
+#include <utils/scopetimer.hpp>
+
+inline auto make_sql_timer()
+{
+  return make_scope_timer([](const std::chrono::steady_clock::duration& elapsed)
+                          {
+                            const auto seconds = std::chrono::duration_cast<std::chrono::seconds>(elapsed);
+                            const auto rest = elapsed - seconds;
+                            log_debug("Query executed in ", seconds.count(), ".", rest.count(), "s.");
+                          });
+}
+#endif
+
 struct Query
 {
     std::string body;
@@ -22,6 +38,18 @@ struct Query
     Query(std::string str):
         body(std::move(str))
     {}
+
+#ifdef DEBUG_SQL_QUERIES
+    auto log_and_time()
+    {
+       std::ostringstream os;
+       os << this->body << "; ";
+       for (const auto& param: this->params)
+         os << "'" << param << "' ";
+       log_debug("SQL QUERY: ", os.str());
+       return make_sql_timer();
+    }
+#endif
 };
 
 template <typename ColumnType>
@@ -58,3 +86,4 @@ operator<<(Query& query, const Integer& i)
   actual_add_param(query, i);
   return query;
 }
+

src/database/select_query.hpp

@@ -110,6 +110,10 @@ struct SelectQuery: public Query
     {
       std::vector<Row<T...>> rows;
 
+#ifdef DEBUG_SQL_QUERIES
+      const auto timer = this->log_and_time();
+#endif
+
       auto statement = db.prepare(this->body);
       statement->bind(std::move(this->params));
 

src/database/sqlite3_engine.cpp

@@ -6,6 +6,8 @@
 
 #include <database/sqlite3_statement.hpp>
 
+#include <database/query.hpp>
+
 #include <utils/tolower.hpp>
 #include <logger/logger.hpp>
 #include <vector>
@@ -57,6 +59,11 @@ std::unique_ptr<DatabaseEngine> Sqlite3Engine::open(const std::string& filename)
 
 std::tuple<bool, std::string> Sqlite3Engine::raw_exec(const std::string& query)
 {
+#ifdef DEBUG_SQL_QUERIES
+  log_debug("SQL QUERY: ", query);
+  const auto timer = make_sql_timer();
+#endif
+
   char* error;
   const auto result = sqlite3_exec(db, query.data(), nullptr, nullptr, &error);
   if (result != SQLITE_OK)

src/database/update_query.hpp

@@ -64,6 +64,10 @@ struct UpdateQuery: public Query
   template <typename... T>
   void execute(DatabaseEngine& db, const std::tuple<T...>& columns)
   {
+#ifdef DEBUG_SQL_QUERIES
+      const auto timer = this->log_and_time();
+#endif
+
     auto statement = db.prepare(this->body);
     this->bind_param(columns, *statement);
     this->bind_id(columns, *statement);