zhangshenghang commented on code in PR #10093:
URL: https://github.com/apache/seatunnel/pull/10093#discussion_r2572762734
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seatunnel-connectors-v2/connector-jdbc/src/main/java/org/apache/seatunnel/connectors/seatunnel/jdbc/catalog/utils/CatalogUtils.java:
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@@ -353,4 +383,32 @@ public static CatalogTable getCatalogTable(Connection
connection, String sqlQuer
return getCatalogTable(resultSetMetaData, sqlQuery);
}
}
+
+ private static PrimaryKey extractPrimaryKey(
+ Connection connection, ResultSetMetaData resultSetMetaData, String
sqlQuery) {
+ try {
+ String tableName = resultSetMetaData.getTableName(1);
Review Comment:
If we only take the first one, an explanation should be added in the
document: The primary key inferred based on the query is inherited from the
underlying table where the first column is located, and its strictness for the
join result set is not guaranteed.
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