danny0405 commented on a change in pull request #2382:
URL: https://github.com/apache/calcite/pull/2382#discussion_r604543460
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File path: core/src/test/java/org/apache/calcite/test/SqlToRelTestBase.java
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@@ -169,6 +170,13 @@ public static void assertValid(RelNode rel) {
*/
RelRoot convertSqlToRel(String sql);
+ /**
+ * Converts a expression string to {@link RexNode}.
+ *
+ * @param expr expression
+ */
+ RexNode convertExpressionToRel(String expr);
+
Review comment:
`convertExpressionToRel` -> `convertExpressionToRex`
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