ILuffZhe commented on code in PR #4176:
URL: https://github.com/apache/calcite/pull/4176#discussion_r1938387850
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core/src/main/java/org/apache/calcite/runtime/SqlFunctions.java:
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@@ -330,6 +330,28 @@ private static String toBase64_(byte[] bytes) {
}
}
+ /** SQL BASE64(string) function for string. */
+ public static String base64(String string) {
+ return toBase64_(string.getBytes(UTF_8));
+ }
+
+ /** SQL BASE64(string) function for bytestring. */
+ public static String base64(ByteString byteString) {
+ byte[] bytes = byteString.getBytes();
+ return toBase64_(bytes);
+ }
+
+ /** SQL UNBASE64(string) function. */
+ public static @Nullable String unBase64(String base64) {
Review Comment:
Can we make it return ByteString, so `ByteString fromBase64(String base64)`
can be used.
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