Add support for DROP DATABASE ... SYNC

parser/ast.go

@@ -5577,6 +5577,7 @@ type DropDatabase struct {
 	Name         *Ident
 	IfExists     bool
 	OnCluster    *ClusterClause
+	Modifier     string
 }
 
 func (d *DropDatabase) Pos() Pos {

parser/format.go

@@ -1403,6 +1403,9 @@ func (d *DropDatabase) FormatSQL(formatter *Formatter) {
 		formatter.WriteByte(whitespace)
 		formatter.WriteExpr(d.OnCluster)
 	}
+	if len(d.Modifier) != 0 {
+		formatter.WriteString(" " + d.Modifier)
+	}
 }
 
 func (d *DropStmt) FormatSQL(formatter *Formatter) {

parser/parser_drop.go

@@ -25,11 +25,20 @@ func (p *Parser) parseDropDatabase(pos Pos) (*DropDatabase, error) {
 		statementEnd = onCluster.End()
 	}
 
+	modifier, err := p.tryParseModifier()
+	if err != nil {
+		return nil, err
+	}
+	if modifier != "" {
+		statementEnd = p.Pos()
+	}
+
 	return &DropDatabase{
 		DropPos:      pos,
 		Name:         name,
 		IfExists:     isExists,
 		OnCluster:    onCluster,
+		Modifier:     modifier,
 		StatementEnd: statementEnd,
 	}, nil
 }

parser/testdata/ddl/drop_database.sql

@@ -1 +1,4 @@
 DROP DATABASE IF EXISTS datbase_name;
+DROP DATABASE IF EXISTS test_db SYNC;
+DROP DATABASE IF EXISTS test_db ON CLUSTER akvorado SYNC;
+DROP DATABASE test_db ON CLUSTER akvorado NO DELAY;

parser/testdata/ddl/format/beautify/drop_database.sql

@@ -1,6 +1,12 @@
 -- Origin SQL:
 DROP DATABASE IF EXISTS datbase_name;
+DROP DATABASE IF EXISTS test_db SYNC;
+DROP DATABASE IF EXISTS test_db ON CLUSTER akvorado SYNC;
+DROP DATABASE test_db ON CLUSTER akvorado NO DELAY;
 
 
 -- Beautify SQL:
 DROP DATABASE IF EXISTS datbase_name;
+DROP DATABASE IF EXISTS test_db SYNC;
+DROP DATABASE IF EXISTS test_db ON CLUSTER akvorado SYNC;
+DROP DATABASE test_db ON CLUSTER akvorado NO DELAY;

parser/testdata/ddl/format/drop_database.sql

@@ -1,6 +1,12 @@
 -- Origin SQL:
 DROP DATABASE IF EXISTS datbase_name;
+DROP DATABASE IF EXISTS test_db SYNC;
+DROP DATABASE IF EXISTS test_db ON CLUSTER akvorado SYNC;
+DROP DATABASE test_db ON CLUSTER akvorado NO DELAY;
 
 
 -- Format SQL:
 DROP DATABASE IF EXISTS datbase_name;
+DROP DATABASE IF EXISTS test_db SYNC;
+DROP DATABASE IF EXISTS test_db ON CLUSTER akvorado SYNC;
+DROP DATABASE test_db ON CLUSTER akvorado NO DELAY;

parser/testdata/ddl/output/drop_database.sql.golden.json

@@ -9,6 +9,62 @@
       "NameEnd": 36
     },
     "IfExists": true,
-    "OnCluster": null
+    "OnCluster": null,
+    "Modifier": ""
+  },
+  {
+    "DropPos": 38,
+    "StatementEnd": 74,
+    "Name": {
+      "Name": "test_db",
+      "QuoteType": 1,
+      "NamePos": 62,
+      "NameEnd": 69
+    },
+    "IfExists": true,
+    "OnCluster": null,
+    "Modifier": "SYNC"
+  },
+  {
+    "DropPos": 76,
+    "StatementEnd": 132,
+    "Name": {
+      "Name": "test_db",
+      "QuoteType": 1,
+      "NamePos": 100,
+      "NameEnd": 107
+    },
+    "IfExists": true,
+    "OnCluster": {
+      "OnPos": 108,
+      "Expr": {
+        "Name": "akvorado",
+        "QuoteType": 1,
+        "NamePos": 119,
+        "NameEnd": 127
+      }
+    },
+    "Modifier": "SYNC"
+  },
+  {
+    "DropPos": 134,
+    "StatementEnd": 184,
+    "Name": {
+      "Name": "test_db",
+      "QuoteType": 1,
+      "NamePos": 148,
+      "NameEnd": 155
+    },
+    "IfExists": false,
+    "OnCluster": {
+      "OnPos": 156,
+      "Expr": {
+        "Name": "akvorado",
+        "QuoteType": 1,
+        "NamePos": 167,
+        "NameEnd": 175
+      }
+    },
+    "Modifier": "NO DELAY"
   }
 ]