Implement ANALYZE statement (#191)

* Implement ANALYZE statement

* Update testdata

Author: apstndb

ast/ast.go

@@ -90,6 +90,7 @@ func (CreateSequence) isStatement()     {}
 func (AlterSequence) isStatement()      {}
 func (DropSequence) isStatement()       {}
 func (AlterStatistics) isStatement()    {}
+func (Analyze) isStatement()            {}
 func (CreateVectorIndex) isStatement()  {}
 func (DropVectorIndex) isStatement()    {}
 func (Insert) isStatement()             {}
@@ -332,6 +333,7 @@ func (CreateSequence) isDDL()     {}
 func (AlterSequence) isDDL()      {}
 func (DropSequence) isDDL()       {}
 func (AlterStatistics) isDDL()    {}
+func (Analyze) isDDL()            {}
 func (CreateVectorIndex) isDDL()  {}
 func (DropVectorIndex) isDDL()    {}
 
@@ -2866,6 +2868,16 @@ type AlterStatistics struct {
 	Options *Options
 }
 
+// Analyze is ANALYZE statement node.
+//
+//	ANALYZE
+type Analyze struct {
+	// pos = Analyze
+	// end = Analyze + 7
+
+	Analyze token.Pos // position of "ANALYZE" keyword
+}
+
 // ================================================================================
 //
 // Types for Schema

ast/pos.go

@@ -1270,6 +1270,7 @@ func (r *RolePrivilege) SQL() string {
 func (s *AlterStatistics) SQL() string {
 	return "ALTER STATISTICS " + s.Name.SQL() + " SET " + s.Options.SQL()
 }
+func (a *Analyze) SQL() string { return "ANALYZE" }
 
 // ================================================================================
 //

ast/sql.go

@@ -213,7 +213,8 @@ func (p *Parser) parseStatement() ast.Statement {
 	case p.Token.Kind == "SELECT" || p.Token.Kind == "@" || p.Token.Kind == "WITH" || p.Token.Kind == "(":
 		return p.parseQueryStatement()
 	case p.Token.Kind == "CREATE" || p.Token.IsKeywordLike("ALTER") || p.Token.IsKeywordLike("DROP") ||
-		p.Token.IsKeywordLike("RENAME") || p.Token.IsKeywordLike("GRANT") || p.Token.IsKeywordLike("REVOKE"):
+		p.Token.IsKeywordLike("RENAME") || p.Token.IsKeywordLike("GRANT") || p.Token.IsKeywordLike("REVOKE") ||
+		p.Token.IsKeywordLike("ANALYZE"):
 		return p.parseDDL()
 	case p.Token.IsKeywordLike("INSERT") || p.Token.IsKeywordLike("DELETE") || p.Token.IsKeywordLike("UPDATE"):
 		return p.parseDML()
@@ -2378,6 +2379,8 @@ func (p *Parser) parseDDL() ast.DDL {
 	case p.Token.IsKeywordLike("REVOKE"):
 		p.nextToken()
 		return p.parseRevoke(pos)
+	case p.Token.IsKeywordLike("ANALYZE"):
+		return p.parseAnalyze()
 	}
 
 	if p.Token.Kind != token.TokenIdent {
@@ -3736,6 +3739,14 @@ func (p *Parser) parseAlterStatistics(pos token.Pos) *ast.AlterStatistics {
 	}
 }
 
+func (p *Parser) parseAnalyze() *ast.Analyze {
+	pos := p.expectKeywordLike("ANALYZE").Pos
+
+	return &ast.Analyze{
+		Analyze: pos,
+	}
+}
+
 var scalarSchemaTypes = []string{
 	"BOOL",
 	"INT64",

parser.go

@@ -0,0 +1 @@
+ANALYZE

testdata/input/ddl/analyze.sql

@@ -0,0 +1,9 @@
+--- analyze.sql
+ANALYZE
+--- AST
+&ast.Analyze{
+  Analyze: 0,
+}
+
+--- SQL
+ANALYZE

testdata/result/ddl/analyze.sql.txt

@@ -0,0 +1,9 @@
+--- analyze.sql
+ANALYZE
+--- AST
+&ast.Analyze{
+  Analyze: 0,
+}
+
+--- SQL
+ANALYZE