dianfu commented on code in PR #19988:
URL: https://github.com/apache/flink/pull/19988#discussion_r904635241
##########
flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/api/internal/BaseExpressions.java:
##########
@@ -1010,6 +1012,16 @@ public OutType toBase64() {
return toApiSpecificExpression(unresolvedCall(TO_BASE64, toExpr()));
}
+ /** Returns the numeric value of the first character the input string. */
Review Comment:
```suggestion
/** Returns the numeric value of the first character of the input
string. */
```
##########
flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/api/internal/BaseExpressions.java:
##########
@@ -1010,6 +1012,16 @@ public OutType toBase64() {
return toApiSpecificExpression(unresolvedCall(TO_BASE64, toExpr()));
}
+ /** Returns the numeric value of the first character the input string. */
+ public OutType ascii() {
+ return toApiSpecificExpression(unresolvedCall(ASCII, toExpr()));
+ }
+
+ /** Returns the ASCII character result of the input string. */
+ public OutType chr() {
Review Comment:
Should also update expression.py
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