fix: add match encode/decode scalar function type (#8089)

Author: Syleechan

datafusion/proto/src/logical_plan/from_proto.rs

@@ -46,7 +46,7 @@ use datafusion_expr::{
     array_to_string, ascii, asin, asinh, atan, atan2, atanh, bit_length, btrim,
     cardinality, cbrt, ceil, character_length, chr, coalesce, concat_expr,
     concat_ws_expr, cos, cosh, cot, current_date, current_time, date_bin, date_part,
-    date_trunc, degrees, digest, exp,
+    date_trunc, decode, degrees, digest, encode, exp,
     expr::{self, InList, Sort, WindowFunction},
     factorial, floor, from_unixtime, gcd, isnan, iszero, lcm, left, ln, log, log10, log2,
     logical_plan::{PlanType, StringifiedPlan},
@@ -1472,6 +1472,14 @@ pub fn parse_expr(
                 ScalarFunction::Sha384 => Ok(sha384(parse_expr(&args[0], registry)?)),
                 ScalarFunction::Sha512 => Ok(sha512(parse_expr(&args[0], registry)?)),
                 ScalarFunction::Md5 => Ok(md5(parse_expr(&args[0], registry)?)),
+                ScalarFunction::Encode => Ok(encode(
+                    parse_expr(&args[0], registry)?,
+                    parse_expr(&args[1], registry)?,
+                )),
+                ScalarFunction::Decode => Ok(decode(
+                    parse_expr(&args[0], registry)?,
+                    parse_expr(&args[1], registry)?,
+                )),
                 ScalarFunction::NullIf => Ok(nullif(
                     parse_expr(&args[0], registry)?,
                     parse_expr(&args[1], registry)?,