ic4y commented on code in PR #3309:
URL:
https://github.com/apache/incubator-seatunnel/pull/3309#discussion_r1021102675
##########
seatunnel-connectors-v2/connector-jdbc/src/main/java/org/apache/seatunnel/connectors/seatunnel/jdbc/source/JdbcSource.java:
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@@ -139,7 +130,7 @@ private SeaTunnelRowType initTableField(Connection conn) {
ArrayList<String> fieldNames = new ArrayList<>();
try {
PreparedStatement ps =
conn.prepareStatement(jdbcSourceOptions.getJdbcConnectionOptions().getQuery());
- ResultSetMetaData resultSetMetaData = ps.getMetaData();
+ ResultSetMetaData resultSetMetaData =
ps.executeQuery().getMetaData();
Review Comment:
executeQuery has a great impact on the performance of other databases, it is
recommended to use JdbcDialect to achieve
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