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[hotfix-#1449][ClickHouse] fix ClickHouse source null pointer problem #1450

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merged 1 commit into from
Dec 20, 2022
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[hotfix-#1449][ClickHouse] fix ClickHouse source null pointer problem #1450

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14 changes: 7 additions & 7 deletions .../src/main/java/com/dtstack/chunjun/connector/clickhouse/source/ClickhouseInputFormat.java
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Original file line number Diff line number Diff line change
Expand Up @@ -36,23 +36,23 @@ public class ClickhouseInputFormat extends JdbcInputFormat {

@Override
public void openInternal(InputSplit inputSplit) {
JdbcInputSplit jdbcInputSplit = (JdbcInputSplit) inputSplit;
initMetric(jdbcInputSplit);
if (!canReadData(jdbcInputSplit)) {
currentJdbcInputSplit = (JdbcInputSplit) inputSplit;
initMetric(currentJdbcInputSplit);
if (!canReadData(currentJdbcInputSplit)) {
LOG.warn(
"Not read data when the start location are equal to end location, start = {}, end = {}",
jdbcInputSplit.getStartLocation(),
jdbcInputSplit.getEndLocation());
currentJdbcInputSplit.getStartLocation(),
currentJdbcInputSplit.getEndLocation());
hasNext = false;
return;
}

String querySQL = null;
try {
dbConn = getConnection();
querySQL = buildQuerySql(jdbcInputSplit);
querySQL = buildQuerySql(currentJdbcInputSplit);
jdbcConf.setQuerySql(querySQL);
executeQuery(jdbcInputSplit.getStartLocation());
executeQuery(currentJdbcInputSplit.getStartLocation());
// 增量任务
needUpdateEndLocation =
jdbcConf.isIncrement() && !jdbcConf.isPolling() && !jdbcConf.isUseMaxFunc();
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