wu-sheng commented on issue #4700:
URL: https://github.com/apache/skywalking/issues/4700#issuecomment-618880000
This is the slow sql check codes, you could check whether your span matches
it.
```java
for (KeyStringValuePair tag : span.getTagsList()) {
if (SpanTags.DB_STATEMENT.equals(tag.getKey())) {
String sqlStatement = tag.getValue();
if (StringUtil.isEmpty(sqlStatement)) {
statement.setStatement("[No statement]/" +
sourceBuilder.getDestEndpointName());
} else if (sqlStatement.length() >
config.getMaxSlowSQLLength()) {
statement.setStatement(sqlStatement.substring(0,
config.getMaxSlowSQLLength()));
} else {
statement.setStatement(sqlStatement);
}
} else if (SpanTags.DB_TYPE.equals(tag.getKey())) {
String dbType = tag.getValue();
DBLatencyThresholdsAndWatcher thresholds =
config.getDbLatencyThresholdsAndWatcher();
int threshold = thresholds.getThreshold(dbType);
if (sourceBuilder.getLatency() > threshold) {
isSlowDBAccess = true;
}
}
}
if (isSlowDBAccess) {
slowDatabaseAccesses.add(statement);
}
```
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