adjust typo & change the comment

e2e_test/udf/sql_udf.slt

@@ -1,9 +1,9 @@
 statement ok
 SET RW_IMPLICIT_FLUSH TO true;
 
-#############################################
-# Basic tests for anonymous / named sql udf #
-#############################################
+###########################################################
+# Basic tests for sql udf with unnamed / named parameters #
+###########################################################
 
 # Create an anonymous function with double dollar as clause
 statement ok
@@ -56,7 +56,7 @@ select sub_named(1, 1);
 ----
 0
 
-# Mixed parameter with named / anonymous parameters
+# Mixed with named / unnamed parameters
 statement ok
 create function add_sub_mix(INT, a INT, INT) returns int language sql as 'select $1 - a + $3';
 
@@ -65,7 +65,7 @@ select add_sub_mix(1, 2, 3);
 ----
 2
 
-# Call anonymous sql udf inside named sql udf
+# Call unnamed sql udf inside named sql udf
 statement ok
 create function add_named_wrapper(a INT, b INT) returns int language sql as 'select add(a, b)';
 
@@ -282,16 +282,16 @@ statement error Expected end of statement, found: 💩
 create function call_regexp_replace() returns varchar language sql as 'select regexp_replace('💩💩💩💩💩foo🤔️bar亲爱的😭baz这不是爱情❤️‍🔥', 'baz(...)', '这是🥵', 'ic')';
 
 # Recursive definition can NOT be accepted at present due to semantic check
-statement error failed to conduct semantic check, please see if you are calling non-existence functions
+statement error failed to conduct semantic check, please see if you are calling non-existent functions
 create function recursive(INT, INT) returns int language sql as 'select recursive($1, $2) + recursive($1, $2)';
 
 # Complex but error-prone definition, recursive & normal sql udfs interleaving
-statement error failed to conduct semantic check, please see if you are calling non-existence functions
+statement error failed to conduct semantic check, please see if you are calling non-existent functions
 create function recursive_non_recursive(INT, INT) returns int language sql as 'select recursive($1, $2) + sub($1, $2)';
 
 # Create a valid recursive function
 # Please note we do NOT support actual running the recursive sql udf at present
-statement error failed to conduct semantic check, please see if you are calling non-existence functions
+statement error failed to conduct semantic check, please see if you are calling non-existent functions
 create function fib(INT) returns int
  language sql as 'select case
         when $1 = 0 then 0
@@ -309,8 +309,8 @@ create function fib(INT) returns int
 # statement error function fib calling stack depth limit exceeded
 # create materialized view foo_mv as select fib(100);
 
-# Calling a non-existence function
-statement error failed to conduct semantic check, please see if you are calling non-existence functions
+# Calling a non-existent function
+statement error failed to conduct semantic check, please see if you are calling non-existent functions
 create function non_exist(INT) returns int language sql as 'select yo(114514)';
 
 # Try to create an anonymous sql udf whose return type mismatches with the sql body definition

src/frontend/src/handler/create_sql_function.rs

@@ -204,7 +204,7 @@ pub async fn handle_create_sql_function(
                     }
                 }
                 Err(e) => return Err(ErrorCode::InvalidInputSyntax(format!(
-                    "failed to conduct semantic check, please see if you are calling non-existence functions: {}",
+                    "failed to conduct semantic check, please see if you are calling non-existent functions: {}",
                     e.as_report()
                 ))
                 .into()),