ETM-Schurig/powersync-core
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Create indices on entries table of log db

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This greatly improves performance when querying logs for
a single thing or a single state/event/action.
This commit is contained in:
Michael Zanetti 2023-02-07 12:10:23 +01:00
parent b409fbe3be
commit fe128723ae
1 changed files with 10 additions and 1 deletions
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11
libnymea-core/logging/logengine.cpp
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@ -817,8 +817,17 @@ bool LogEngine::initDB(const QString &username, const QString &password)
m_db.close(); m_db.close();
return false; return false;
} }
}
m_db.exec("CREATE INDEX IF NOT EXISTS idx_query_single_thing ON entries (thingId);");
if (m_db.lastError().isValid()) {
qCWarning(dcLogEngine()) << "Error creating entries table thing index in log database. Driver error:" << m_db.lastError().driverText() << "Database error:" << m_db.lastError().databaseText();
return false;
}
m_db.exec("CREATE INDEX IF NOT EXISTS idx_query_single_type ON entries (typeId, thingId);");
if (m_db.lastError().isValid()) {
qCWarning(dcLogEngine()) << "Error creating entries table state index in log database. Driver error:" << m_db.lastError().driverText() << "Database error:" << m_db.lastError().databaseText();
return false;
} }
qCDebug(dcLogEngine) << "Initialized logging DB successfully. (maximum DB size:" << m_dbMaxSize << ")"; qCDebug(dcLogEngine) << "Initialized logging DB successfully. (maximum DB size:" << m_dbMaxSize << ")";