akshat0395 commented on code in PR #4475:
URL: https://github.com/apache/hive/pull/4475#discussion_r1268947976
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jdbc-handler/src/main/java/org/apache/hive/storage/jdbc/dao/HiveDatabaseAccessor.java:
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@@ -56,4 +57,19 @@ protected String addLimitToQuery(String sql, int limit) {
}
return sql + " LIMIT " + limit;
}
+
+ @Override
+ protected List<String> getColNamesFromRS(ResultSet rs) throws Exception {
+ List<String> columnNames = super.getColNamesFromRS(rs);
+ return columnNames.stream()
+ .map(c -> {
+ int lastIndex = c.lastIndexOf(".");
+ return lastIndex == -1 ? c : c.substring(lastIndex + 1); })
+ .collect(Collectors.toList());
+ }
+
+ @Override
+ protected String getMetaDataQuery(String sql) {
+ return addLimitToQuery(sql, 0);
Review Comment:
If my understanding is correct, this method only returns the query string,
rather than actual result set. This method just relays the output string from
another method, which seems like an extra method call to get the Query string.
calling `addLimitToQuery(sql, 0)` directly also should work fine in this
case.
WDYT?
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