[Feature][Transform-SQL]Support sql transform to generate UUID (#7881)

Author: zhilinli123

Diff for: docs/en/transform-v2/sql-functions.md

@@ -973,3 +973,14 @@ It is used to determine whether the condition is valid and return different valu
 Example:
 
 case when c_string in ('c_string') then 1 else 0 end
+
+### UUID
+
+```UUID()```
+
+Generate a uuid through java function.
+
+Example:
+
+select UUID() as seatunnel_uuid
+

Diff for: docs/zh/transform-v2/sql-functions.md

@@ -964,3 +964,14 @@ from
 示例:
 
 case when c_string in ('c_string') then 1 else 0 end
+
+### UUID
+
+```UUID()```
+
+通过java函数生成uuid
+
+示例:
+
+select UUID() as seatunnel_uuid
+

Diff for: seatunnel-e2e/seatunnel-transforms-v2-e2e/seatunnel-transforms-v2-e2e-part-2/src/test/resources/sql_transform/func_string.conf

@@ -54,7 +54,7 @@ transform {
   sql {
     source_table_name = "fake"
     result_table_name = "fake1"
-    query = "select ascii(c1) as c1_1, ascii(c2) as c2_1, bit_length(c4) as c4_1, length(c4) as c4_2, octet_length(c4) as c4_3, char(c5) as c5_1, concat(c1,id,'!') as c1_2, hextoraw(c6) as c6_1, rawtohex(c7) as c7_1, insert(name,2,2,'**') as name1, lower(name) as name2, upper(name) as name3, left(name, 3) as name4, right(name, 4) as name5, lpad(name, 10, '*') as name6, rpad(name, 10, '*') as name7, ltrim(c8, '*') as c8_1, rtrim(c8, '*') as c8_2, trim(c8, '*') as c8_3, regexp_replace(c9, 'w+', 'W', 'i') as c9_1, regexp_like(name, '[A-Z ]*', 'i') as name8, regexp_substr(c10, '\\d{4}') as c10_1, regexp_substr(c10, '(\\d{4})-(\\d{2})-(\\d{2})', 1, 1, null, 2) as c10_2, repeat(name||' ',3) as name9, replace(name,' ','_') as name10, soundex(name) as name11, name || space(3) as name12, substring(name, 1, 3) as name13, to_char(id) as id1, to_char(c11,'yyyy-MM-dd') as c11_1, translate(name, 'ing', 'ING') as name14, des_decrypt('1234567890', des_encrypt('1234567890', name)) as name15 from fake"
+    query = "select ascii(c1) as c1_1, ascii(c2) as c2_1, bit_length(c4) as c4_1, length(c4) as c4_2, octet_length(c4) as c4_3, char(c5) as c5_1, concat(c1,id,'!') as c1_2, hextoraw(c6) as c6_1, rawtohex(c7) as c7_1, insert(name,2,2,'**') as name1, lower(name) as name2, upper(name) as name3, left(name, 3) as name4, right(name, 4) as name5, lpad(name, 10, '*') as name6, rpad(name, 10, '*') as name7, ltrim(c8, '*') as c8_1, rtrim(c8, '*') as c8_2, trim(c8, '*') as c8_3, regexp_replace(c9, 'w+', 'W', 'i') as c9_1, regexp_like(name, '[A-Z ]*', 'i') as name8, regexp_substr(c10, '\\d{4}') as c10_1, regexp_substr(c10, '(\\d{4})-(\\d{2})-(\\d{2})', 1, 1, null, 2) as c10_2, repeat(name||' ',3) as name9, replace(name,' ','_') as name10, soundex(name) as name11, name || space(3) as name12, substring(name, 1, 3) as name13, to_char(id) as id1, to_char(c11,'yyyy-MM-dd') as c11_1, translate(name, 'ing', 'ING') as name14, des_decrypt('1234567890', des_encrypt('1234567890', name)) as name15,UUID() as uuid from fake"
   }
 }
 
@@ -286,6 +286,15 @@ sink {
           field_value = [
             {equals_to = "Joy Ding"}
           ]
+        },
+        {
+          field_name = uuid
+          field_type = STRING
+          field_value = [
+            {
+              rule_type = NOT_NULL
+            }
+          ]
         }
       ]
     }

Diff for: seatunnel-transforms-v2/src/main/java/org/apache/seatunnel/transform/sql/zeta/ZetaSQLFunction.java

@@ -61,6 +61,8 @@
 import java.util.List;
 import java.util.Map;
 
+import static java.util.UUID.randomUUID;
+
 public class ZetaSQLFunction {
     // ============================internal functions=====================
 
@@ -171,6 +173,8 @@ public class ZetaSQLFunction {
     public static final String IFNULL = "IFNULL";
     public static final String NULLIF = "NULLIF";
 
+    public static final String UUID = "UUID";
+
     private final SeaTunnelRowType inputRowType;
     private final ZetaSQLType zetaSQLType;
     private final ZetaSQLFilter zetaSQLFilter;
@@ -515,6 +519,8 @@ public Object executeFunctionExpr(String functionName, List<Object> args) {
                 return SystemFunction.ifnull(args);
             case NULLIF:
                 return SystemFunction.nullif(args);
+            case UUID:
+                return randomUUID().toString();
             default:
                 for (ZetaUDF udf : udfList) {
                     if (udf.functionName().equalsIgnoreCase(functionName)) {

Diff for: seatunnel-transforms-v2/src/main/java/org/apache/seatunnel/transform/sql/zeta/ZetaSQLType.java

@@ -384,6 +384,7 @@ private SeaTunnelDataType<?> getFunctionType(Function function) {
             case ZetaSQLFunction.MONTHNAME:
             case ZetaSQLFunction.FORMATDATETIME:
             case ZetaSQLFunction.FROM_UNIXTIME:
+            case ZetaSQLFunction.UUID:
                 return BasicType.STRING_TYPE;
             case ZetaSQLFunction.ASCII:
             case ZetaSQLFunction.LOCATE: