feat: add support UUID type

src/main/java/com/google/cloud/solutions/spannerddl/parser/ASTcolumn_type.java

@@ -55,6 +55,7 @@ public String toString() {
       case "DATE":
       case "NUMERIC":
       case "JSON":
+      case "UUID":
       case "TOKENLIST":
         return typeName;
       case "STRING":

src/test/java/com/google/cloud/solutions/spannerddl/diff/DdlDiffTest.java

@@ -267,6 +267,20 @@ public void generateAlterTable_incompatibleTypeChange() {
         "create table test1 (col1 float64) primary key (col1);",
         true,
         "Cannot change type of table test1 column col1");
+
+    // change type to UUID
+    getDiffCheckDdlDiffException(
+        "create table test1 (col1 int64, col2 int64) primary key (col1);",
+        "create table test1 (col1 int64, col2 uuid) primary key (col1);",
+        true,
+        "Cannot change type of table test1 column col2");
+
+    // change STRING(36) to UUID
+    getDiffCheckDdlDiffException(
+        "create table test1 (col1 int64, col2 string(36)) primary key (col1);",
+        "create table test1 (col1 int64, col2 uuid) primary key (col1);",
+        true,
+        "Cannot change type of table test1 column col2");
   }
 
   @Test

src/test/java/com/google/cloud/solutions/spannerddl/parser/DDLParserTest.java

@@ -36,7 +36,7 @@ public void parseCreateTable() throws ParseException {
                         + " (\"prefix\" || sizedstring || \"suffix\"), sizedbytes bytes(55),"
                         + " maxbytes bytes(max), datecol date, timestampcol timestamp options"
                         + " (allow_commit_timestamp = true), intarray array<int64>, numericcol"
-                        + " numeric,jsoncol json, pgcolumn pg.something, generatedcol string(max)"
+                        + " numeric,jsoncol json, uuidcol uuid, pgcolumn pg.something, generatedcol string(max)"
                         + " as (sizedstring+"
                         + " strstr(maxstring,strpos(maxstring,'xxx'),length(maxstring)) +2.0)"
                         + " STORED, constraint fk_col_remote FOREIGN KEY(col1, col2) REFERENCES"
@@ -68,6 +68,7 @@ public void parseCreateTable() throws ParseException {
                     + "  intarray ARRAY<INT64>, \n"
                     + "  numericcol NUMERIC, \n"
                     + "  jsoncol JSON, \n"
+                    + "  uuidcol UUID, \n"
                     + "  pgcolumn PG.SOMETHING, \n"
                     + "  generatedcol STRING(MAX) AS ( sizedstring + strstr ( maxstring, strpos (\n"
                     + "     maxstring, 'xxx' ), length ( maxstring ) ) + 2.0 ) STORED, \n"

src/test/resources/ddlParserValidation.txt

@@ -63,6 +63,7 @@ CREATE TABLE test.test (
     intarray ARRAY<INT64>,
     numericcol NUMERIC,
     jsoncol JSON,
+    uuidcol UUID,
     pgcolumn PG.SOMETHING,
     generatedcol STRING(MAX) AS ( sizedstring + strstr ( maxstring, strpos ( maxstring, 'xxx' ), length ( maxstring ) ) + 2.0 ) STORED,
     tokenlistCol TOKENLIST AS ( TOKENIZE_FULLTEXT ( maxstring ) ) HIDDEN,

src/test/resources/expectedDdlDiff.txt

@@ -379,5 +379,9 @@ ALTER TABLE mytable SET OPTIONS (locality_group='lg2')
 
 ALTER TABLE mytable SET OPTIONS (droppedKey=NULL,newKey='value2')
 
+== test 75 add UUID column
+
+ALTER TABLE test1 ADD COLUMN col3 UUID
+
 ==
 

src/test/resources/newDdl.txt

@@ -592,4 +592,12 @@ create table mytable (keycol int64) primary key(keycol), OPTIONS(locality_group
 
 create table mytable (keycol int64) primary key(keycol), OPTIONS(existingKey='value', newKey='value2')
 
+== test 75 add UUID column
+
+create table test1 (
+    col1 int64,
+    col2 string(max),
+    col3 uuid
+) primary key (col1);
+
 ==

src/test/resources/originalDdl.txt

@@ -591,5 +591,12 @@ create table mytable (keycol int64) primary key(keycol), OPTIONS(locality_group
 
 create table mytable (keycol int64) primary key(keycol), OPTIONS(existingKey='value', droppedKey='value1')
 
+== test 75 add UUID column
+
+create table test1 (
+    col1 int64,
+    col2 string(max)
+) primary key (col1);
+
 ==