haridsv commented on code in PR #2199:
URL: https://github.com/apache/phoenix/pull/2199#discussion_r2163102267
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phoenix-core-client/src/main/java/org/apache/phoenix/jdbc/PhoenixPreparedStatement.java:
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@@ -215,6 +215,28 @@ private void preExecuteUpdate() throws SQLException {
}
}
+ /**
+ * Executes the given SQL statement similar to JDBC API executeUpdate()
but also returns the
+ * old row (before update) as Result object back to the client. This must
be used with
+ * auto-commit Connection. This makes the operation atomic.
+ * Return the old row (state before update) regardless of whether the
update is
+ * successful or not.
+ *
+ * @return The pair of int and ResultSet, where int represents value 1 for
successful row update
+ * and 0 for non-successful row update, and ResultSet represents the old
state of the row.
+ * @throws SQLException If the statement cannot be executed.
+ */
+ // Note: Do Not remove this, it is expected to be used by downstream
applications
+ public Pair<Integer, ResultSet> executeAtomicUpdateReturnOldRow() throws
SQLException {
Review Comment:
An import on PhoenixStatement or PhoenixPreparedStatement is already needed
right? Is there a difference between a single import vs two imports? Since you
are confident of having only two types, an alternative is to use a boolean
param which can then be translated to the enum inside the method.
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