liuyongvs commented on code in PR #20746:
URL: https://github.com/apache/flink/pull/20746#discussion_r962700248
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flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/api/internal/BaseExpressions.java:
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@@ -722,6 +723,23 @@ public OutType round(InType places) {
return toApiSpecificExpression(unresolvedCall(ROUND, toExpr(),
objectToExpression(places)));
}
+ /**
+ * Converts numbers between different number bases.
+ *
+ * <p>Returns a string representation of the number N, converted from base
`fromBase` to base
+ * `toBase`. Returns NULL if any argument is NULL. The argument N is
interpreted as an integer,
+ * but may be specified as an integer or a string. The minimum base is 2
and the maximum base is
+ * 36. If fromBase is a negative number, N is regarded as a signed number.
Otherwise, N is
+ * treated as unsigned. CONV() works with 64-bit precision.
+ *
+ * <p>E.g. 'a'.conv(16, 2) leads to '1010', 100.conv(10, -8) leads to
"144".
+ */
+ public OutType conv(InType fromBase, InType toBase) {
Review Comment:
it exists in this commits
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