zzwqqq commented on code in PR #4942:
URL: https://github.com/apache/calcite/pull/4942#discussion_r3300922141
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core/src/main/java/org/apache/calcite/rex/RexBuilder.java:
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@@ -958,6 +958,11 @@ public RexNode makeCast(
return temporalLiteral;
}
+ /** Converts a TIME or TIMESTAMP literal to a character literal.
+ *
+ * <p>Returns null if the literal type is not supported, the literal value is
+ * unavailable, or the formatted temporal value does not fit in the target
Review Comment:
Thanks, I removed the caller behavior from the JavaDoc and made the
null-return cases more specific.
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