[GitHub] [calcite] wojustme commented on a change in pull request #2692: [CALCITE-4980] Babel parser support MySQL NULL-safe equal operator '<=>' (xurenhe)

[GitBox]

wojustme commented on a change in pull request #2692:
URL: https://github.com/apache/calcite/pull/2692#discussion_r785897035



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File path: 
core/src/main/java/org/apache/calcite/sql/fun/SqlLibraryOperators.java
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@@ -706,4 +707,17 @@ private SqlLibraryOperators() {
   @LibraryOperator(libraries = { POSTGRESQL })
   public static final SqlOperator INFIX_CAST =
       new SqlCastOperator();
+
+  /** Null-safe "<=>" equal operator used by MySQL, for example
+   * {@code 1<=>NULL}. */
+  @LibraryOperator(libraries = { MYSQL })
+  public static final SqlOperator NULL_SAFE_EQUAL =

Review comment:
       @NobiGo 
   Yes, you are right.
   But I need change operator's name to '<=>', so, I create an object of 
'SqlBinaryOperator' to define Operator of '<=>'.
   Thanks.




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