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DatabaseViewer: using DBDriver directly instead of Memory to save RAM on large databases

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This commit is contained in:
matlabbe
2015-10-16 14:54:47 -04:00
parent 835155e6ae
commit 5934ec90db
9 changed files with 544 additions and 408 deletions
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corelib/src/DBDriverSqlite3.cpp
+85 -9
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@@ -2179,6 +2179,61 @@ void DBDriverSqlite3::saveQuery(const std::list<VisualWord *> & words) const
}
}
void DBDriverSqlite3::addLinkQuery(const Link & link) const
{
UDEBUG("");
if(_ppDb)
{
std::string type;
UTimer timer;
timer.start();
int rc = SQLITE_OK;
sqlite3_stmt * ppStmt = 0;
// Create new entries in table Link
std::string query = queryStepLink();
rc = sqlite3_prepare_v2(_ppDb, query.c_str(), -1, &ppStmt, 0);
UASSERT_MSG(rc == SQLITE_OK, uFormat("DB error: %s", sqlite3_errmsg(_ppDb)).c_str());
// Save link
stepLink(ppStmt, link);
// Finalize (delete) the statement
rc = sqlite3_finalize(ppStmt);
UASSERT_MSG(rc == SQLITE_OK, uFormat("DB error: %s", sqlite3_errmsg(_ppDb)).c_str());
UDEBUG("Time=%fs", timer.ticks());
}
}
void DBDriverSqlite3::updateLinkQuery(const Link & link) const
{
UDEBUG("");
if(_ppDb)
{
std::string type;
UTimer timer;
timer.start();
int rc = SQLITE_OK;
sqlite3_stmt * ppStmt = 0;
// Create new entries in table Link
std::string query = queryStepLinkUpdate();
rc = sqlite3_prepare_v2(_ppDb, query.c_str(), -1, &ppStmt, 0);
UASSERT_MSG(rc == SQLITE_OK, uFormat("DB error: %s", sqlite3_errmsg(_ppDb)).c_str());
// Save link
stepLink(ppStmt, link);
// Finalize (delete) the statement
rc = sqlite3_finalize(ppStmt);
UASSERT_MSG(rc == SQLITE_OK, uFormat("DB error: %s", sqlite3_errmsg(_ppDb)).c_str());
UDEBUG("Time=%fs", timer.ticks());
}
}
std::string DBDriverSqlite3::queryStepNode() const
{
if(uStrNumCmp(_version, "0.10.1") >= 0)
@@ -2549,23 +2604,43 @@ void DBDriverSqlite3::stepSensorData(sqlite3_stmt * ppStmt,
UASSERT_MSG(rc == SQLITE_OK, uFormat("DB error: %s", sqlite3_errmsg(_ppDb)).c_str());
}
std::string DBDriverSqlite3::queryStepLink() const
std::string DBDriverSqlite3::queryStepLinkUpdate() const
{
if(uStrNumCmp(_version, "0.10.10") >= 0)
{
return "INSERT INTO Link(from_id, to_id, type, rot_variance, trans_variance, transform, user_data) VALUES(?,?,?,?,?,?,?);";
return "UPDATE Link SET type=?, rot_variance=?, trans_variance=?, transform=?, user_data=? WHERE from_id=? AND to_id = ?;";
}
else if(uStrNumCmp(_version, "0.8.4") >= 0)
{
return "INSERT INTO Link(from_id, to_id, type, rot_variance, trans_variance, transform) VALUES(?,?,?,?,?,?);";
return "UPDATE Link SET type=?, rot_variance=?, trans_variance=?, transform=? WHERE from_id=? AND to_id = ?;";
}
else if(uStrNumCmp(_version, "0.7.4") >= 0)
{
return "INSERT INTO Link(from_id, to_id, type, variance, transform) VALUES(?,?,?,?,?);";
return "UPDATE Link SET type=?, variance=?, transform=? WHERE from_id=? AND to_id = ?;";
}
else
{
return "INSERT INTO Link(from_id, to_id, type, transform) VALUES(?,?,?,?);";
return "UPDATE Link SET type=?, transform=? WHERE from_id=? AND to_id = ?;";
}
}
std::string DBDriverSqlite3::queryStepLink() const
{
// from_id, to_id are at the end to match the update query above
if(uStrNumCmp(_version, "0.10.10") >= 0)
{
return "INSERT INTO Link(type, rot_variance, trans_variance, transform, user_data, from_id, to_id) VALUES(?,?,?,?,?,?,?);";
}
else if(uStrNumCmp(_version, "0.8.4") >= 0)
{
return "INSERT INTO Link(type, rot_variance, trans_variance, transform, from_id, to_id) VALUES(?,?,?,?,?,?);";
}
else if(uStrNumCmp(_version, "0.7.4") >= 0)
{
return "INSERT INTO Link(type, variance, transform, from_id, to_id) VALUES(?,?,?,?,?);";
}
else
{
return "INSERT INTO Link(type, transform, from_id, to_id) VALUES(?,?,?,?);";
}
}
void DBDriverSqlite3::stepLink(
@@ -2587,10 +2662,6 @@ void DBDriverSqlite3::stepLink(
int rc = SQLITE_OK;
int index = 1;
rc = sqlite3_bind_int(ppStmt, index++, link.from());
UASSERT_MSG(rc == SQLITE_OK, uFormat("DB error: %s", sqlite3_errmsg(_ppDb)).c_str());
rc = sqlite3_bind_int(ppStmt, index++, link.to());
UASSERT_MSG(rc == SQLITE_OK, uFormat("DB error: %s", sqlite3_errmsg(_ppDb)).c_str());
rc = sqlite3_bind_int(ppStmt, index++, link.type());
UASSERT_MSG(rc == SQLITE_OK, uFormat("DB error: %s", sqlite3_errmsg(_ppDb)).c_str());
@@ -2624,6 +2695,11 @@ void DBDriverSqlite3::stepLink(
UASSERT_MSG(rc == SQLITE_OK, uFormat("DB error: %s", sqlite3_errmsg(_ppDb)).c_str());
}
rc = sqlite3_bind_int(ppStmt, index++, link.from());
UASSERT_MSG(rc == SQLITE_OK, uFormat("DB error: %s", sqlite3_errmsg(_ppDb)).c_str());
rc = sqlite3_bind_int(ppStmt, index++, link.to());
UASSERT_MSG(rc == SQLITE_OK, uFormat("DB error: %s", sqlite3_errmsg(_ppDb)).c_str());
rc=sqlite3_step(ppStmt);
UASSERT_MSG(rc == SQLITE_DONE, uFormat("DB error: %s", sqlite3_errmsg(_ppDb)).c_str());