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[11284] Implement prepared statements for INSERT+DELETE+UPDATE SQL requests. Should improve player save performance + lower MySQL server CPU usage.

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Note: PostgreSQL does not have prepared statements implemented using native APIs.

Huge thanks to Undergarun, kero99 and Vinolentus.

Signed-off-by: Ambal <pogrebniak@gala.net>
This commit is contained in:
Ambal 2011-03-25 21:52:59 +02:00
parent d9374d936f
commit 40ef9cbf2f
24 changed files with 1823 additions and 488 deletions
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25
src/game/WorldSession.cpp
View file

@ -749,15 +749,32 @@ void WorldSession::SendTutorialsData()
void WorldSession::SaveTutorialsData()
{
static SqlStatementID updTutorial ;
static SqlStatementID insTutorial ;
switch(m_tutorialState)
{
case TUTORIALDATA_CHANGED:
CharacterDatabase.PExecute("UPDATE character_tutorial SET tut0='%u', tut1='%u', tut2='%u', tut3='%u', tut4='%u', tut5='%u', tut6='%u', tut7='%u' WHERE account = '%u'",
m_Tutorials[0], m_Tutorials[1], m_Tutorials[2], m_Tutorials[3], m_Tutorials[4], m_Tutorials[5], m_Tutorials[6], m_Tutorials[7], GetAccountId());
{
SqlStatement stmt = CharacterDatabase.CreateStatement(updTutorial, "UPDATE character_tutorial SET tut0=?, tut1=?, tut2=?, tut3=?, tut4=?, tut5=?, tut6=?, tut7=? WHERE account = ?");
for (int i = 0; i < 8; ++i)
stmt.addUInt32(m_Tutorials[i]);
stmt.addUInt32(GetAccountId());
stmt.Execute();
}
break;
case TUTORIALDATA_NEW:
CharacterDatabase.PExecute("INSERT INTO character_tutorial (account,tut0,tut1,tut2,tut3,tut4,tut5,tut6,tut7) VALUES ('%u', '%u', '%u', '%u', '%u', '%u', '%u', '%u', '%u')",
GetAccountId(), m_Tutorials[0], m_Tutorials[1], m_Tutorials[2], m_Tutorials[3], m_Tutorials[4], m_Tutorials[5], m_Tutorials[6], m_Tutorials[7]);
{
SqlStatement stmt = CharacterDatabase.CreateStatement(insTutorial, "INSERT INTO character_tutorial (account,tut0,tut1,tut2,tut3,tut4,tut5,tut6,tut7) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)");
stmt.addUInt32(GetAccountId());
for (int i = 0; i < 8; ++i)
stmt.addUInt32(m_Tutorials[i]);
stmt.Execute();
}
break;
case TUTORIALDATA_UNCHANGED:
break;