Kikyou1997 commented on code in PR #12765:
URL: https://github.com/apache/doris/pull/12765#discussion_r976151896
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fe/fe-core/src/main/java/org/apache/doris/statistics/SQLStatisticsTask.java:
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@@ -17,47 +17,119 @@
package org.apache.doris.statistics;
-import org.apache.doris.analysis.SelectStmt;
+import org.apache.doris.catalog.Database;
+import org.apache.doris.catalog.Env;
+import org.apache.doris.catalog.Table;
+import org.apache.doris.common.DdlException;
+import org.apache.doris.common.InvalidFormatException;
+import org.apache.doris.statistics.StatisticsTaskResult.TaskResult;
+import org.apache.doris.statistics.StatsGranularity.Granularity;
+import org.apache.doris.statistics.util.InternalQuery;
+import org.apache.doris.statistics.util.InternalQueryResult;
+import org.apache.doris.statistics.util.InternalQueryResult.ResultRow;
+import org.apache.doris.statistics.util.InternalSqlTemplate;
+
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
import java.util.List;
+import java.util.Map;
/**
* A statistics task that collects statistics by executing query.
* The results of the query will be returned as @StatisticsTaskResult.
*/
public class SQLStatisticsTask extends StatisticsTask {
- private SelectStmt query;
+ private String statement;
public SQLStatisticsTask(long jobId, List<StatisticsDesc> statsDescs) {
super(jobId, statsDescs);
}
@Override
public StatisticsTaskResult call() throws Exception {
- // TODO
- // step1: construct query by statsDescList
- constructQuery();
- // step2: execute query
- // the result should be sequence by @statsTypeList
- List<String> queryResultList = executeQuery(query);
- // step3: construct StatisticsTaskResult by query result
- constructTaskResult(queryResultList);
- return null;
+ checkStatisticsDesc();
+ List<TaskResult> taskResults = Lists.newArrayList();
+
+ for (StatisticsDesc statsDesc : statsDescs) {
+ statement = constructQuery(statsDesc);
+ TaskResult taskResult = executeQuery(statsDesc);
+ taskResults.add(taskResult);
+ }
+
+ return new StatisticsTaskResult(taskResults);
}
- protected void constructQuery() {
- // TODO
- // step1: construct FROM by @granularityDesc
- // step2: construct SELECT LIST by @statsTypeList
+ protected String constructQuery(StatisticsDesc statsDesc) throws
DdlException,
+ InvalidFormatException {
+ Map<String, String> params = getQueryParams(statsDesc);
+ List<StatsType> statsTypes = statsDesc.getStatsTypes();
+ StatsType type = statsTypes.get(0);
+
+ StatsGranularity statsGranularity = statsDesc.getStatsGranularity();
+ Granularity granularity = statsGranularity.getGranularity();
+ boolean nonPartitioned = granularity != Granularity.PARTITION;
+
+ switch (type) {
Review Comment:
First, I don't think it would take much longer time than separete it to many
small SQL, besides put those SQL into single statement actually make the
resource control of statistcs more easy, otherwise you should set resource
limitations for each statistic SQL and control the total resource occupation of
these SQL and should make sure there aren't two many small SQL of statistics
executing, all about these is unnessary and make resource management and code
maintenance much more complicated.
And, Is really neccessary to enable users setting which concrete metric of
column is needed by analyze SQL statement? I think this is totally redundant.
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