Move SQL engine and PostgreSQL server to their own binaries (#8417)

* Drop SQL engine and PostgreSQL server

* Split SQL tooling into weed-db and weed-sql

* move

* fix building

Makefile

@@ -1,4 +1,4 @@
-.PHONY: test admin-generate admin-build admin-clean admin-dev admin-run admin-test admin-fmt admin-help
+.PHONY: test admin-generate admin-build admin-clean admin-dev admin-run admin-test admin-fmt admin-help weed-commands
 
 BINARY = weed
 ADMIN_DIR = weed/admin
@@ -11,6 +11,9 @@ all: install
 install: admin-generate
 	cd weed; go install
 
+weed-commands:
+	cd weed && $(MAKE) weed-db weed-sql
+
 warp_install:
 	go install github.com/minio/warp@v0.7.6
 

cmd/weed-db/dbcmd.go

@@ -1,10 +1,11 @@
-package command
+package main
 
 import (
 	"context"
 	"crypto/tls"
 	"encoding/json"
 	"fmt"
+	"io"
 	"os"
 	"os/signal"
 	"strings"
@@ -13,43 +14,12 @@ import (
 
 	"github.com/seaweedfs/seaweedfs/weed/server/postgres"
 	"github.com/seaweedfs/seaweedfs/weed/util"
+	flag "github.com/seaweedfs/seaweedfs/weed/util/fla9"
 )
 
-var (
+const usageLine = "weed-db -port=5432 -master=<master_server>"
-	dbOptions DBOptions
-)
 
-type DBOptions struct {
+const longHelp = `Start a PostgreSQL wire protocol compatible database server that provides SQL query access to SeaweedFS.
-	host        *string
-	port        *int
-	masterAddr  *string
-	authMethod  *string
-	users       *string
-	database    *string
-	maxConns    *int
-	idleTimeout *string
-	tlsCert     *string
-	tlsKey      *string
-}
-
-func init() {
-	cmdDB.Run = runDB // break init cycle
-	dbOptions.host = cmdDB.Flag.String("host", "localhost", "Database server host")
-	dbOptions.port = cmdDB.Flag.Int("port", 5432, "Database server port")
-	dbOptions.masterAddr = cmdDB.Flag.String("master", "localhost:9333", "SeaweedFS master server address")
-	dbOptions.authMethod = cmdDB.Flag.String("auth", "trust", "Authentication method: trust, password, md5")
-	dbOptions.users = cmdDB.Flag.String("users", "", "User credentials for auth (JSON format '{\"user1\":\"pass1\",\"user2\":\"pass2\"}' or file '@/path/to/users.json')")
-	dbOptions.database = cmdDB.Flag.String("database", "default", "Default database name")
-	dbOptions.maxConns = cmdDB.Flag.Int("max-connections", 100, "Maximum concurrent connections per server")
-	dbOptions.idleTimeout = cmdDB.Flag.String("idle-timeout", "1h", "Connection idle timeout")
-	dbOptions.tlsCert = cmdDB.Flag.String("tls-cert", "", "TLS certificate file path")
-	dbOptions.tlsKey = cmdDB.Flag.String("tls-key", "", "TLS private key file path")
-}
-
-var cmdDB = &Command{
-	UsageLine: "db -port=5432 -master=<master_server>",
-	Short:     "start a PostgreSQL-compatible database server for SQL queries",
-	Long: `Start a PostgreSQL wire protocol compatible database server that provides SQL query access to SeaweedFS.
 
 This database server enables any PostgreSQL client, tool, or application to connect to SeaweedFS
 and execute SQL queries against MQ topics. It implements the PostgreSQL wire protocol for maximum
@@ -58,25 +28,25 @@ compatibility with the existing PostgreSQL ecosystem.
 Examples:
 
 	# Start database server on default port 5432
-	weed db
+	weed-db
 	
 	# Start with MD5 authentication using JSON format (recommended)
-	weed db -auth=md5 -users='{"admin":"secret","readonly":"view123"}'
+	weed-db -auth=md5 -users='{"admin":"secret","readonly":"view123"}'
 	
 	# Start with complex passwords using JSON format
-	weed db -auth=md5 -users='{"admin":"pass;with;semicolons","user":"password:with:colons"}'
+	weed-db -auth=md5 -users='{"admin":"pass;with;semicolons","user":"password:with:colons"}'
 	
 	# Start with credentials from JSON file (most secure)
-	weed db -auth=md5 -users="@/etc/seaweedfs/users.json"
+	weed-db -auth=md5 -users="@/etc/seaweedfs/users.json"
 	
 	# Start with custom port and master
-	weed db -port=5433 -master=master1:9333
+	weed-db -port=5433 -master=master1:9333
 	
 	# Allow connections from any host
-	weed db -host=0.0.0.0 -port=5432
+	weed-db -host=0.0.0.0 -port=5432
 	
 	# Start with TLS encryption
-	weed db -tls-cert=server.crt -tls-key=server.key
+	weed-db -tls-cert=server.crt -tls-key=server.key
 
 Client Connection Examples:
 
@@ -95,7 +65,7 @@ Programming Language Examples:
 	# Python (psycopg2)
 	import psycopg2
 	conn = psycopg2.connect(
-		host="localhost", port=5432, 
+		host="localhost", port=5432,
 		user="seaweedfs", database="default"
 	)
 	
@@ -116,7 +86,7 @@ Supported SQL Operations:
 	- SELECT queries on MQ topics
 	- DESCRIBE/DESC table_name commands
 	- EXPLAIN query execution plans
-	- SHOW DATABASES/TABLES commands  
+	- SHOW DATABASES/TABLES commands
 	- Aggregation functions (COUNT, SUM, AVG, MIN, MAX)
 	- WHERE clauses with filtering
 	- System columns (_timestamp_ns, _key, _source)
@@ -149,50 +119,95 @@ Performance Features:
 	- PostgreSQL wire protocol
 	- Query result streaming
 
-`,
+`
+
+type Options struct {
+	Host        string
+	Port        int
+	MasterAddr  string
+	AuthMethod  string
+	Users       string
+	Database    string
+	MaxConns    int
+	IdleTimeout string
+	TLSCert     string
+	TLSKey      string
 }
 
-func runDB(cmd *Command, args []string) bool {
+// Run executes the weed-db CLI.
+func Run(args []string) int {
+	fs := flag.NewFlagSet("weed-db", flag.ContinueOnError)
+	usageWriter := io.Writer(os.Stderr)
+	fs.SetOutput(usageWriter)
 
+	var opts Options
+	fs.StringVar(&opts.Host, "host", "localhost", "Database server host")
+	fs.IntVar(&opts.Port, "port", 5432, "Database server port")
+	fs.StringVar(&opts.MasterAddr, "master", "localhost:9333", "SeaweedFS master server address")
+	fs.StringVar(&opts.AuthMethod, "auth", "trust", "Authentication method: trust, password, md5")
+	fs.StringVar(&opts.Users, "users", "", "User credentials for auth (JSON format '{\"user1\":\"pass1\",\"user2\":\"pass2\"}' or file '@/path/to/users.json')")
+	fs.StringVar(&opts.Database, "database", "default", "Default database name")
+	fs.IntVar(&opts.MaxConns, "max-connections", 100, "Maximum concurrent connections per server")
+	fs.StringVar(&opts.IdleTimeout, "idle-timeout", "1h", "Connection idle timeout")
+	fs.StringVar(&opts.TLSCert, "tls-cert", "", "TLS certificate file path")
+	fs.StringVar(&opts.TLSKey, "tls-key", "", "TLS private key file path")
+
+	fs.Usage = func() {
+		fmt.Fprintf(usageWriter, "Usage: %s\n\n%s\n", usageLine, longHelp)
+		fmt.Fprintln(usageWriter, "Default Parameters:")
+		fs.PrintDefaults()
+	}
+
+	if err := fs.Parse(args); err != nil {
+		return 2
+	}
+
+	if !runWithOptions(&opts) {
+		return 1
+	}
+	return 0
+}
+
+func runWithOptions(opts *Options) bool {
 	util.LoadConfiguration("security", false)
 
-	// Validate options
+	// Validate options.
-	if *dbOptions.masterAddr == "" {
+	if opts.MasterAddr == "" {
 		fmt.Fprintf(os.Stderr, "Error: master address is required\n")
 		return false
 	}
 
-	// Parse authentication method
+	// Parse authentication method.
-	authMethod, err := parseAuthMethod(*dbOptions.authMethod)
+	authMethod, err := parseAuthMethod(opts.AuthMethod)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
 		return false
 	}
 
-	// Parse user credentials
+	// Parse user credentials.
-	users, err := parseUsers(*dbOptions.users, authMethod)
+	users, err := parseUsers(opts.Users, authMethod)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
 		return false
 	}
 
-	// Parse idle timeout
+	// Parse idle timeout.
-	idleTimeout, err := time.ParseDuration(*dbOptions.idleTimeout)
+	idleTimeout, err := time.ParseDuration(opts.IdleTimeout)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "Error parsing idle timeout: %v\n", err)
 		return false
 	}
 
-	// Validate port number
+	// Validate port number.
-	if err := validatePortNumber(*dbOptions.port); err != nil {
+	if err := validatePortNumber(opts.Port); err != nil {
 		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
 		return false
 	}
 
-	// Setup TLS if requested
+	// Setup TLS if requested.
 	var tlsConfig *tls.Config
-	if *dbOptions.tlsCert != "" && *dbOptions.tlsKey != "" {
+	if opts.TLSCert != "" && opts.TLSKey != "" {
-		cert, err := tls.LoadX509KeyPair(*dbOptions.tlsCert, *dbOptions.tlsKey)
+		cert, err := tls.LoadX509KeyPair(opts.TLSCert, opts.TLSKey)
 		if err != nil {
 			fmt.Fprintf(os.Stderr, "Error loading TLS certificates: %v\n", err)
 			return false
@@ -202,34 +217,34 @@ func runDB(cmd *Command, args []string) bool {
 		}
 	}
 
-	// Create server configuration
+	// Create server configuration.
 	config := &postgres.PostgreSQLServerConfig{
-		Host:        *dbOptions.host,
+		Host:        opts.Host,
-		Port:        *dbOptions.port,
+		Port:        opts.Port,
 		AuthMethod:  authMethod,
 		Users:       users,
-		Database:    *dbOptions.database,
+		Database:    opts.Database,
-		MaxConns:    *dbOptions.maxConns,
+		MaxConns:    opts.MaxConns,
 		IdleTimeout: idleTimeout,
 		TLSConfig:   tlsConfig,
 	}
 
-	// Create database server
+	// Create database server.
-	dbServer, err := postgres.NewPostgreSQLServer(config, *dbOptions.masterAddr)
+	dbServer, err := postgres.NewPostgreSQLServer(config, opts.MasterAddr)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "Error creating database server: %v\n", err)
 		return false
 	}
 
-	// Print startup information
+	// Print startup information.
 	fmt.Printf("Starting SeaweedFS Database Server...\n")
-	fmt.Printf("Host: %s\n", *dbOptions.host)
+	fmt.Printf("Host: %s\n", opts.Host)
-	fmt.Printf("Port: %d\n", *dbOptions.port)
+	fmt.Printf("Port: %d\n", opts.Port)
-	fmt.Printf("Master: %s\n", *dbOptions.masterAddr)
+	fmt.Printf("Master: %s\n", opts.MasterAddr)
-	fmt.Printf("Database: %s\n", *dbOptions.database)
+	fmt.Printf("Database: %s\n", opts.Database)
-	fmt.Printf("Auth Method: %s\n", *dbOptions.authMethod)
+	fmt.Printf("Auth Method: %s\n", opts.AuthMethod)
-	fmt.Printf("Max Connections: %d\n", *dbOptions.maxConns)
+	fmt.Printf("Max Connections: %d\n", opts.MaxConns)
-	fmt.Printf("Idle Timeout: %s\n", *dbOptions.idleTimeout)
+	fmt.Printf("Idle Timeout: %s\n", opts.IdleTimeout)
 	if tlsConfig != nil {
 		fmt.Printf("TLS: Enabled\n")
 	} else {
@@ -240,15 +255,15 @@ func runDB(cmd *Command, args []string) bool {
 	}
 
 	fmt.Printf("\nDatabase Connection Examples:\n")
-	fmt.Printf("  psql -h %s -p %d -U seaweedfs -d %s\n", *dbOptions.host, *dbOptions.port, *dbOptions.database)
+	fmt.Printf("  psql -h %s -p %d -U seaweedfs -d %s\n", opts.Host, opts.Port, opts.Database)
 	if len(users) > 0 {
-		// Show first user as example
+		// Show first user as example.
 		for username := range users {
-			fmt.Printf("  psql -h %s -p %d -U %s -d %s\n", *dbOptions.host, *dbOptions.port, username, *dbOptions.database)
+			fmt.Printf("  psql -h %s -p %d -U %s -d %s\n", opts.Host, opts.Port, username, opts.Database)
 			break
 		}
 	}
-	fmt.Printf("  postgresql://%s:%d/%s\n", *dbOptions.host, *dbOptions.port, *dbOptions.database)
+	fmt.Printf("  postgresql://%s:%d/%s\n", opts.Host, opts.Port, opts.Database)
 
 	fmt.Printf("\nSupported Operations:\n")
 	fmt.Printf("  - SELECT queries on MQ topics\n")
@@ -261,26 +276,26 @@ func runDB(cmd *Command, args []string) bool {
 
 	fmt.Printf("\nReady for database connections!\n\n")
 
-	// Start the server
+	// Start the server.
 	err = dbServer.Start()
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "Error starting database server: %v\n", err)
 		return false
 	}
 
-	// Set up signal handling for graceful shutdown
+	// Set up signal handling for graceful shutdown.
 	sigChan := make(chan os.Signal, 1)
 	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
 
-	// Wait for shutdown signal
+	// Wait for shutdown signal.
 	<-sigChan
 	fmt.Printf("\nReceived shutdown signal, stopping database server...\n")
 
-	// Create context with timeout for graceful shutdown
+	// Create context with timeout for graceful shutdown.
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer cancel()
 
-	// Stop the server with timeout
+	// Stop the server with timeout.
 	done := make(chan error, 1)
 	go func() {
 		done <- dbServer.Stop()
@@ -301,7 +316,7 @@ func runDB(cmd *Command, args []string) bool {
 	return true
 }
 
-// parseAuthMethod parses the authentication method string
+// parseAuthMethod parses the authentication method string.
 func parseAuthMethod(method string) (postgres.AuthMethod, error) {
 	switch strings.ToLower(method) {
 	case "trust":
@@ -315,7 +330,7 @@ func parseAuthMethod(method string) (postgres.AuthMethod, error) {
 	}
 }
 
-// parseUsers parses the user credentials string with support for secure formats only
+// parseUsers parses the user credentials string with support for secure formats only.
 // Supported formats:
 // 1. JSON format: {"username":"password","username2":"password2"}
 // 2. File format: /path/to/users.json or @/path/to/users.json
@@ -323,41 +338,41 @@ func parseUsers(usersStr string, authMethod postgres.AuthMethod) (map[string]str
 	users := make(map[string]string)
 
 	if usersStr == "" {
-		// No users specified
+		// No users specified.
 		if authMethod != postgres.AuthTrust {
 			return nil, fmt.Errorf("users must be specified when auth method is not 'trust'")
 		}
 		return users, nil
 	}
 
-	// Trim whitespace
+	// Trim whitespace.
 	usersStr = strings.TrimSpace(usersStr)
 
-	// Determine format and parse accordingly
+	// Determine format and parse accordingly.
 	if strings.HasPrefix(usersStr, "{") && strings.HasSuffix(usersStr, "}") {
-		// JSON format
+		// JSON format.
 		return parseUsersJSON(usersStr, authMethod)
 	}
 
-	// Check if it's a file path (with or without @ prefix) before declaring invalid format
+	// Check if it's a file path (with or without @ prefix) before declaring invalid format.
 	filePath := strings.TrimPrefix(usersStr, "@")
 	if _, err := os.Stat(filePath); err == nil {
-		// File format
+		// File format.
-		return parseUsersFile(usersStr, authMethod) // Pass original string to preserve @ handling
+		return parseUsersFile(usersStr, authMethod) // Pass original string to preserve @ handling.
 	}
 
-	// Invalid format
+	// Invalid format.
 	return nil, fmt.Errorf("invalid user credentials format. Use JSON format '{\"user\":\"pass\"}' or file format '@/path/to/users.json' or 'path/to/users.json'. Legacy semicolon-separated format is no longer supported")
 }
 
-// parseUsersJSON parses user credentials from JSON format
+// parseUsersJSON parses user credentials from JSON format.
 func parseUsersJSON(jsonStr string, authMethod postgres.AuthMethod) (map[string]string, error) {
 	var users map[string]string
 	if err := json.Unmarshal([]byte(jsonStr), &users); err != nil {
 		return nil, fmt.Errorf("invalid JSON format for users: %v", err)
 	}
 
-	// Validate users
+	// Validate users.
 	for username, password := range users {
 		if username == "" {
 			return nil, fmt.Errorf("empty username in JSON user specification")
@@ -370,12 +385,12 @@ func parseUsersJSON(jsonStr string, authMethod postgres.AuthMethod) (map[string]
 	return users, nil
 }
 
-// parseUsersFile parses user credentials from a JSON file
+// parseUsersFile parses user credentials from a JSON file.
 func parseUsersFile(filePath string, authMethod postgres.AuthMethod) (map[string]string, error) {
-	// Remove @ prefix if present
+	// Remove @ prefix if present.
 	filePath = strings.TrimPrefix(filePath, "@")
 
-	// Read file content
+	// Read file content.
 	content, err := os.ReadFile(filePath)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read users file '%s': %v", filePath, err)
@@ -383,16 +398,16 @@ func parseUsersFile(filePath string, authMethod postgres.AuthMethod) (map[string
 
 	contentStr := strings.TrimSpace(string(content))
 
-	// File must contain JSON format
+	// File must contain JSON format.
 	if !strings.HasPrefix(contentStr, "{") || !strings.HasSuffix(contentStr, "}") {
 		return nil, fmt.Errorf("users file '%s' must contain JSON format: {\"user\":\"pass\"}. Legacy formats are no longer supported", filePath)
 	}
 
-	// Parse as JSON
+	// Parse as JSON.
 	return parseUsersJSON(contentStr, authMethod)
 }
 
-// validatePortNumber validates that the port number is reasonable
+// validatePortNumber validates that the port number is reasonable.
 func validatePortNumber(port int) error {
 	if port < 1 || port > 65535 {
 		return fmt.Errorf("port number must be between 1 and 65535, got %d", port)

cmd/weed-db/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "os"
+
+func main() {
+	os.Exit(Run(os.Args[1:]))
+}

cmd/weed-sql/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "os"
+
+func main() {
+	os.Exit(Run(os.Args[1:]))
+}

cmd/weed-sql/sqlcmd.go

@@ -1,4 +1,4 @@
-package command
+package main
 
 import (
 	"context"
@@ -13,28 +13,24 @@ import (
 
 	"github.com/peterh/liner"
 	"github.com/seaweedfs/seaweedfs/weed/query/engine"
+	flag "github.com/seaweedfs/seaweedfs/weed/util/fla9"
 	"github.com/seaweedfs/seaweedfs/weed/util/grace"
 	"github.com/seaweedfs/seaweedfs/weed/util/sqlutil"
 )
 
-func init() {
+const usageLine = "weed-sql [-master=localhost:9333] [-interactive] [-file=query.sql] [-output=table|json|csv] [-database=dbname] [-query=\"SQL\"]"
-	cmdSql.Run = runSql
-}
 
-var cmdSql = &Command{
+const longHelp = `Enhanced SQL interface for SeaweedFS Message Queue topics with multiple execution modes.
-	UsageLine: "sql [-master=localhost:9333] [-interactive] [-file=query.sql] [-output=table|json|csv] [-database=dbname] [-query=\"SQL\"]",
-	Short:     "advanced SQL query interface for SeaweedFS MQ topics with multiple execution modes",
-	Long: `Enhanced SQL interface for SeaweedFS Message Queue topics with multiple execution modes.
 
 Execution Modes:
-- Interactive shell (default): weed sql -interactive
+- Interactive shell (default): weed-sql -interactive
-- Single query: weed sql -query "SELECT * FROM user_events"  
+- Single query: weed-sql -query "SELECT * FROM user_events"
-- Batch from file: weed sql -file queries.sql
+- Batch from file: weed-sql -file queries.sql
-- Context switching: weed sql -database analytics -interactive
+- Context switching: weed-sql -database analytics -interactive
 
 Output Formats:
 - table: ASCII table format (default for interactive)
-- json: JSON format (default for non-interactive) 
+- json: JSON format (default for non-interactive)
 - csv: Comma-separated values
 
 Features:
@@ -45,24 +41,23 @@ Features:
 - Database context switching
 
 Examples:
-  weed sql -interactive
+  weed-sql -interactive
-  weed sql -query "SHOW DATABASES" -output json
+  weed-sql -query "SHOW DATABASES" -output json
-  weed sql -file batch_queries.sql -output csv
+  weed-sql -file batch_queries.sql -output csv
-  weed sql -database analytics -query "SELECT COUNT(*) FROM metrics"
+  weed-sql -database analytics -query "SELECT COUNT(*) FROM metrics"
-  weed sql -master broker1:9333 -interactive
+  weed-sql -master broker1:9333 -interactive
-`,
+`
+
+type Options struct {
+	Master      string
+	Interactive bool
+	File        string
+	Output      string
+	Database    string
+	Query       string
 }
 
-var (
+// OutputFormat represents different output formatting options.
-	sqlMaster      = cmdSql.Flag.String("master", "localhost:9333", "SeaweedFS master server HTTP address")
-	sqlInteractive = cmdSql.Flag.Bool("interactive", false, "start interactive shell mode")
-	sqlFile        = cmdSql.Flag.String("file", "", "execute SQL queries from file")
-	sqlOutput      = cmdSql.Flag.String("output", "", "output format: table, json, csv (auto-detected if not specified)")
-	sqlDatabase    = cmdSql.Flag.String("database", "", "default database context")
-	sqlQuery       = cmdSql.Flag.String("query", "", "execute single SQL query")
-)
-
-// OutputFormat represents different output formatting options
 type OutputFormat string
 
 const (
@@ -71,50 +66,82 @@ const (
 	OutputCSV   OutputFormat = "csv"
 )
 
-// SQLContext holds the execution context for SQL operations
+// SQLContext holds the execution context for SQL operations.
 type SQLContext struct {
 	engine          *engine.SQLEngine
 	currentDatabase string
 	outputFormat    OutputFormat
 	interactive     bool
+	master          string
 }
 
-func runSql(command *Command, args []string) bool {
+// Run executes the weed-sql CLI.
-	// Initialize SQL engine with master address for service discovery
+func Run(args []string) int {
-	sqlEngine := engine.NewSQLEngine(*sqlMaster)
+	fs := flag.NewFlagSet("weed-sql", flag.ContinueOnError)
+	usageWriter := io.Writer(os.Stderr)
+	fs.SetOutput(usageWriter)
 
-	// Determine execution mode and output format
+	var opts Options
-	interactive := *sqlInteractive || (*sqlQuery == "" && *sqlFile == "")
+	fs.StringVar(&opts.Master, "master", "localhost:9333", "SeaweedFS master server HTTP address")
-	outputFormat := determineOutputFormat(*sqlOutput, interactive)
+	fs.BoolVar(&opts.Interactive, "interactive", false, "start interactive shell mode")
+	fs.StringVar(&opts.File, "file", "", "execute SQL queries from file")
+	fs.StringVar(&opts.Output, "output", "", "output format: table, json, csv (auto-detected if not specified)")
+	fs.StringVar(&opts.Database, "database", "", "default database context")
+	fs.StringVar(&opts.Query, "query", "", "execute single SQL query")
 
-	// Create SQL context
+	fs.Usage = func() {
+		fmt.Fprintf(usageWriter, "Usage: %s\n\n%s\n", usageLine, longHelp)
+		fmt.Fprintln(usageWriter, "Default Parameters:")
+		fs.PrintDefaults()
+	}
+
+	if err := fs.Parse(args); err != nil {
+		return 2
+	}
+
+	if !runWithOptions(&opts) {
+		return 1
+	}
+	return 0
+}
+
+func runWithOptions(opts *Options) bool {
+	// Initialize SQL engine with master address for service discovery.
+	sqlEngine := engine.NewSQLEngine(opts.Master)
+
+	// Determine execution mode and output format.
+	interactive := opts.Interactive || (opts.Query == "" && opts.File == "")
+	outputFormat := determineOutputFormat(opts.Output, interactive)
+
+	// Create SQL context.
 	ctx := &SQLContext{
 		engine:          sqlEngine,
-		currentDatabase: *sqlDatabase,
+		currentDatabase: opts.Database,
 		outputFormat:    outputFormat,
 		interactive:     interactive,
+		master:          opts.Master,
 	}
 
-	// Set current database in SQL engine if specified via command line
+	// Set current database in SQL engine if specified via command line.
-	if *sqlDatabase != "" {
+	if opts.Database != "" {
-		ctx.engine.GetCatalog().SetCurrentDatabase(*sqlDatabase)
+		ctx.engine.GetCatalog().SetCurrentDatabase(opts.Database)
 	}
 
-	// Execute based on mode
+	// Execute based on mode.
 	switch {
-	case *sqlQuery != "":
+	case opts.Query != "":
-		// Single query mode
+		// Single query mode.
-		return executeSingleQuery(ctx, *sqlQuery)
+		return executeSingleQuery(ctx, opts.Query)
-	case *sqlFile != "":
+	case opts.File != "":
-		// Batch file mode
+		// Batch file mode.
-		return executeFileQueries(ctx, *sqlFile)
+		return executeFileQueries(ctx, opts.File)
 	default:
-		// Interactive mode
+		// Interactive mode.
 		return runInteractiveShell(ctx)
 	}
 }
 
-// determineOutputFormat selects the appropriate output format
+// determineOutputFormat selects the appropriate output format.
 func determineOutputFormat(specified string, interactive bool) OutputFormat {
 	switch strings.ToLower(specified) {
 	case "table":
@@ -124,7 +151,7 @@ func determineOutputFormat(specified string, interactive bool) OutputFormat {
 	case "csv":
 		return OutputCSV
 	default:
-		// Auto-detect based on mode
+		// Auto-detect based on mode.
 		if interactive {
 			return OutputTable
 		}
@@ -132,18 +159,18 @@ func determineOutputFormat(specified string, interactive bool) OutputFormat {
 	}
 }
 
-// executeSingleQuery executes a single query and outputs the result
+// executeSingleQuery executes a single query and outputs the result.
 func executeSingleQuery(ctx *SQLContext, query string) bool {
 	if ctx.outputFormat != OutputTable {
-		// Suppress banner for non-interactive output
+		// Suppress banner for non-interactive output.
 		return executeAndDisplay(ctx, query, false)
 	}
 
-	fmt.Printf("Executing query against %s...\n", *sqlMaster)
+	fmt.Printf("Executing query against %s...\n", ctx.master)
 	return executeAndDisplay(ctx, query, true)
 }
 
-// executeFileQueries processes SQL queries from a file
+// executeFileQueries processes SQL queries from a file.
 func executeFileQueries(ctx *SQLContext, filename string) bool {
 	content, err := os.ReadFile(filename)
 	if err != nil {
@@ -152,10 +179,10 @@ func executeFileQueries(ctx *SQLContext, filename string) bool {
 	}
 
 	if ctx.outputFormat == OutputTable && ctx.interactive {
-		fmt.Printf("Executing queries from %s against %s...\n", filename, *sqlMaster)
+		fmt.Printf("Executing queries from %s against %s...\n", filename, ctx.master)
 	}
 
-	// Split file content into individual queries (robust approach)
+	// Split file content into individual queries (robust approach).
 	queries := sqlutil.SplitStatements(string(content))
 
 	for i, query := range queries {
@@ -176,11 +203,11 @@ func executeFileQueries(ctx *SQLContext, filename string) bool {
 	return true
 }
 
-// runInteractiveShell starts the enhanced interactive shell with readline support
+// runInteractiveShell starts the enhanced interactive shell with readline support.
 func runInteractiveShell(ctx *SQLContext) bool {
 	fmt.Println("SeaweedFS Enhanced SQL Interface")
 	fmt.Println("Type 'help;' for help, 'exit;' to quit")
-	fmt.Printf("Connected to master: %s\n", *sqlMaster)
+	fmt.Printf("Connected to master: %s\n", ctx.master)
 	if ctx.currentDatabase != "" {
 		fmt.Printf("Current database: %s\n", ctx.currentDatabase)
 	}
@@ -188,24 +215,24 @@ func runInteractiveShell(ctx *SQLContext) bool {
 	fmt.Println("Use up/down arrows for command history")
 	fmt.Println()
 
-	// Initialize liner for readline functionality
+	// Initialize liner for readline functionality.
 	line := liner.NewLiner()
 	defer line.Close()
 
-	// Handle Ctrl+C gracefully
+	// Handle Ctrl+C gracefully.
 	line.SetCtrlCAborts(true)
 	grace.OnInterrupt(func() {
 		line.Close()
 	})
 
-	// Load command history
+	// Load command history.
 	historyPath := path.Join(os.TempDir(), "weed-sql-history")
 	if f, err := os.Open(historyPath); err == nil {
 		line.ReadHistory(f)
 		f.Close()
 	}
 
-	// Save history on exit
+	// Save history on exit.
 	defer func() {
 		if f, err := os.Create(historyPath); err == nil {
 			line.WriteHistory(f)
@@ -216,7 +243,7 @@ func runInteractiveShell(ctx *SQLContext) bool {
 	var queryBuffer strings.Builder
 
 	for {
-		// Show prompt with current database context
+		// Show prompt with current database context.
 		var prompt string
 		if queryBuffer.Len() == 0 {
 			if ctx.currentDatabase != "" {
@@ -225,10 +252,10 @@ func runInteractiveShell(ctx *SQLContext) bool {
 				prompt = "seaweedfs> "
 			}
 		} else {
-			prompt = "    -> " // Continuation prompt
+			prompt = "    -> " // Continuation prompt.
 		}
 
-		// Read line with readline support
+		// Read line with readline support.
 		input, err := line.Prompt(prompt)
 		if err != nil {
 			if err == liner.ErrPromptAborted {
@@ -244,30 +271,30 @@ func runInteractiveShell(ctx *SQLContext) bool {
 
 		lineStr := strings.TrimSpace(input)
 
-		// Handle empty lines
+		// Handle empty lines.
 		if lineStr == "" {
 			continue
 		}
 
-		// Accumulate lines in query buffer
+		// Accumulate lines in query buffer.
 		if queryBuffer.Len() > 0 {
 			queryBuffer.WriteString(" ")
 		}
 		queryBuffer.WriteString(lineStr)
 
-		// Check if we have a complete statement (ends with semicolon or special command)
+		// Check if we have a complete statement (ends with semicolon or special command).
 		fullQuery := strings.TrimSpace(queryBuffer.String())
 		isComplete := strings.HasSuffix(lineStr, ";") ||
 			isSpecialCommand(fullQuery)
 
 		if !isComplete {
-			continue // Continue reading more lines
+			continue // Continue reading more lines.
 		}
 
-		// Add completed command to history
+		// Add completed command to history.
 		line.AppendHistory(fullQuery)
 
-		// Handle special commands (with or without semicolon)
+		// Handle special commands (with or without semicolon).
 		cleanQuery := strings.TrimSuffix(fullQuery, ";")
 		cleanQuery = strings.TrimSpace(cleanQuery)
 
@@ -282,19 +309,19 @@ func runInteractiveShell(ctx *SQLContext) bool {
 			continue
 		}
 
-		// Handle database switching - use proper SQL parser instead of manual parsing
+		// Handle database switching - use proper SQL parser instead of manual parsing.
 		if strings.HasPrefix(strings.ToUpper(cleanQuery), "USE ") {
-			// Execute USE statement through the SQL engine for proper parsing
+			// Execute USE statement through the SQL engine for proper parsing.
 			result, err := ctx.engine.ExecuteSQL(context.Background(), cleanQuery)
 			if err != nil {
 				fmt.Printf("Error: %v\n\n", err)
 			} else if result.Error != nil {
 				fmt.Printf("Error: %v\n\n", result.Error)
 			} else {
-				// Extract the database name from the result message for CLI context
+				// Extract the database name from the result message for CLI context.
 				if len(result.Rows) > 0 && len(result.Rows[0]) > 0 {
 					message := result.Rows[0][0].ToString()
-					// Extract database name from "Database changed to: dbname"
+					// Extract database name from "Database changed to: dbname".
 					if strings.HasPrefix(message, "Database changed to: ") {
 						ctx.currentDatabase = strings.TrimPrefix(message, "Database changed to: ")
 					}
@@ -305,7 +332,7 @@ func runInteractiveShell(ctx *SQLContext) bool {
 			continue
 		}
 
-		// Handle output format switching
+		// Handle output format switching.
 		if strings.HasPrefix(strings.ToUpper(cleanQuery), "\\FORMAT ") {
 			format := strings.TrimSpace(strings.TrimPrefix(strings.ToUpper(cleanQuery), "\\FORMAT "))
 			switch format {
@@ -325,22 +352,22 @@ func runInteractiveShell(ctx *SQLContext) bool {
 			continue
 		}
 
-		// Execute SQL query (without semicolon)
+		// Execute SQL query (without semicolon).
 		executeAndDisplay(ctx, cleanQuery, true)
 
-		// Reset buffer for next query
+		// Reset buffer for next query.
 		queryBuffer.Reset()
 	}
 
 	return true
 }
 
-// isSpecialCommand checks if a command is a special command that doesn't require semicolon
+// isSpecialCommand checks if a command is a special command that doesn't require semicolon.
 func isSpecialCommand(query string) bool {
 	cleanQuery := strings.TrimSuffix(strings.TrimSpace(query), ";")
 	cleanQuery = strings.ToLower(cleanQuery)
 
-	// Special commands that work with or without semicolon
+	// Special commands that work with or without semicolon.
 	specialCommands := []string{
 		"exit", "quit", "\\q", "help",
 	}
@@ -351,7 +378,7 @@ func isSpecialCommand(query string) bool {
 		}
 	}
 
-	// Commands that are exactly specific commands (not just prefixes)
+	// Commands that are exactly specific commands (not just prefixes).
 	parts := strings.Fields(strings.ToUpper(cleanQuery))
 	if len(parts) == 0 {
 		return false
@@ -360,11 +387,11 @@ func isSpecialCommand(query string) bool {
 		strings.HasPrefix(strings.ToUpper(cleanQuery), "\\FORMAT ")
 }
 
-// executeAndDisplay executes a query and displays the result in the specified format
+// executeAndDisplay executes a query and displays the result in the specified format.
 func executeAndDisplay(ctx *SQLContext, query string, showTiming bool) bool {
 	startTime := time.Now()
 
-	// Execute the query
+	// Execute the query.
 	execCtx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer cancel()
 
@@ -397,7 +424,7 @@ func executeAndDisplay(ctx *SQLContext, query string, showTiming bool) bool {
 		return false
 	}
 
-	// Display results in the specified format
+	// Display results in the specified format.
 	switch ctx.outputFormat {
 	case OutputTable:
 		displayTableResult(result)
@@ -407,8 +434,8 @@ func executeAndDisplay(ctx *SQLContext, query string, showTiming bool) bool {
 		displayCSVResult(result)
 	}
 
-	// Show execution time for interactive/table mode
+	// Show execution time for interactive/table mode.
-	// Only show timing if there are columns or if result is truly empty
+	// Only show timing if there are columns or if result is truly empty.
 	if showTiming && ctx.outputFormat == OutputTable && (len(result.Columns) > 0 || len(result.Rows) == 0) {
 		elapsed := time.Since(startTime)
 		fmt.Printf("\n(%d rows in set, %.3f sec)\n\n", len(result.Rows), elapsed.Seconds())
@@ -417,20 +444,20 @@ func executeAndDisplay(ctx *SQLContext, query string, showTiming bool) bool {
 	return true
 }
 
-// displayTableResult formats and displays query results in ASCII table format
+// displayTableResult formats and displays query results in ASCII table format.
 func displayTableResult(result *engine.QueryResult) {
 	if len(result.Columns) == 0 {
 		fmt.Println("Empty result set")
 		return
 	}
 
-	// Calculate column widths for formatting
+	// Calculate column widths for formatting.
 	colWidths := make([]int, len(result.Columns))
 	for i, col := range result.Columns {
 		colWidths[i] = len(col)
 	}
 
-	// Check data for wider columns
+	// Check data for wider columns.
 	for _, row := range result.Rows {
 		for i, val := range row {
 			if i < len(colWidths) {
@@ -442,28 +469,28 @@ func displayTableResult(result *engine.QueryResult) {
 		}
 	}
 
-	// Print header separator
+	// Print header separator.
 	fmt.Print("+")
 	for _, width := range colWidths {
 		fmt.Print(strings.Repeat("-", width+2) + "+")
 	}
 	fmt.Println()
 
-	// Print column headers
+	// Print column headers.
 	fmt.Print("|")
 	for i, col := range result.Columns {
 		fmt.Printf(" %-*s |", colWidths[i], col)
 	}
 	fmt.Println()
 
-	// Print separator
+	// Print separator.
 	fmt.Print("+")
 	for _, width := range colWidths {
 		fmt.Print(strings.Repeat("-", width+2) + "+")
 	}
 	fmt.Println()
 
-	// Print data rows
+	// Print data rows.
 	for _, row := range result.Rows {
 		fmt.Print("|")
 		for i, val := range row {
@@ -474,7 +501,7 @@ func displayTableResult(result *engine.QueryResult) {
 		fmt.Println()
 	}
 
-	// Print bottom separator
+	// Print bottom separator.
 	fmt.Print("+")
 	for _, width := range colWidths {
 		fmt.Print(strings.Repeat("-", width+2) + "+")
@@ -482,16 +509,16 @@ func displayTableResult(result *engine.QueryResult) {
 	fmt.Println()
 }
 
-// displayJSONResult outputs query results in JSON format
+// displayJSONResult outputs query results in JSON format.
 func displayJSONResult(result *engine.QueryResult) {
-	// Convert result to JSON-friendly format
+	// Convert result to JSON-friendly format.
 	jsonResult := map[string]interface{}{
 		"columns": result.Columns,
 		"rows":    make([]map[string]interface{}, len(result.Rows)),
 		"count":   len(result.Rows),
 	}
 
-	// Convert rows to JSON objects
+	// Convert rows to JSON objects.
 	for i, row := range result.Rows {
 		rowObj := make(map[string]interface{})
 		for j, val := range row {
@@ -502,7 +529,7 @@ func displayJSONResult(result *engine.QueryResult) {
 		jsonResult["rows"].([]map[string]interface{})[i] = rowObj
 	}
 
-	// Marshal and print JSON
+	// Marshal and print JSON.
 	jsonBytes, err := json.MarshalIndent(jsonResult, "", "  ")
 	if err != nil {
 		fmt.Printf("Error formatting JSON: %v\n", err)
@@ -512,11 +539,11 @@ func displayJSONResult(result *engine.QueryResult) {
 	fmt.Println(string(jsonBytes))
 }
 
-// displayCSVResult outputs query results in CSV format
+// displayCSVResult outputs query results in CSV format.
 func displayCSVResult(result *engine.QueryResult) {
-	// Handle execution plan results specially to avoid CSV quoting issues
+	// Handle execution plan results specially to avoid CSV quoting issues.
 	if len(result.Columns) == 1 && result.Columns[0] == "Query Execution Plan" {
-		// For execution plans, output directly without CSV encoding to avoid quotes
+		// For execution plans, output directly without CSV encoding to avoid quotes.
 		for _, row := range result.Rows {
 			if len(row) > 0 {
 				fmt.Println(row[0].ToString())
@@ -525,17 +552,17 @@ func displayCSVResult(result *engine.QueryResult) {
 		return
 	}
 
-	// Standard CSV output for regular query results
+	// Standard CSV output for regular query results.
 	writer := csv.NewWriter(os.Stdout)
 	defer writer.Flush()
 
-	// Write headers
+	// Write headers.
 	if err := writer.Write(result.Columns); err != nil {
 		fmt.Printf("Error writing CSV headers: %v\n", err)
 		return
 	}
 
-	// Write data rows
+	// Write data rows.
 	for _, row := range result.Rows {
 		csvRow := make([]string, len(row))
 		for i, val := range row {
@@ -553,7 +580,7 @@ func showEnhancedHelp() {
 
 METADATA OPERATIONS:
   SHOW DATABASES;              - List all MQ namespaces
-  SHOW TABLES;                 - List all topics in current namespace  
+  SHOW TABLES;                 - List all topics in current namespace
   SHOW TABLES FROM database;   - List topics in specific namespace
   DESCRIBE table_name;         - Show table schema
 
@@ -581,7 +608,7 @@ SPECIAL COMMANDS:
 
 EXTENDED WHERE OPERATORS:
   =, <, >, <=, >=             - Comparison operators
-  !=, <>                      - Not equal operators  
+  !=, <>                      - Not equal operators
   LIKE 'pattern%'             - Pattern matching (% = any chars, _ = single char)
   IN (value1, value2, ...)    - Multi-value matching
   AND, OR                     - Logical operators

test/kafka/Dockerfile.kafka-gateway

@@ -16,8 +16,9 @@ RUN go mod download
 # Copy source code
 COPY . .
 
-# Build the weed binary with Kafka gateway support
+# Build the weed binaries with Kafka gateway support
 RUN CGO_ENABLED=1 GOOS=linux go build -a -installsuffix cgo -ldflags '-extldflags "-static"' -o weed ./weed
+RUN CGO_ENABLED=1 GOOS=linux go build -a -installsuffix cgo -ldflags '-extldflags "-static"' -o weed-sql ./cmd/weed-sql
 
 # Final stage
 FROM alpine:latest
@@ -32,8 +33,9 @@ RUN addgroup -g 1000 seaweedfs && \
 # Set working directory
 WORKDIR /usr/bin
 
-# Copy binary from builder
+# Copy binaries from builder
 COPY --from=builder /app/weed .
+COPY --from=builder /app/weed-sql .
 
 # Create data directory
 RUN mkdir -p /data && chown seaweedfs:seaweedfs /data

test/kafka/test_json_timestamp.sh

@@ -14,8 +14,7 @@ sleep 2
 
 echo "Querying messages..."
 cd /Users/chrislu/go/src/github.com/seaweedfs/seaweedfs/test/kafka/kafka-client-loadtest
-docker compose exec kafka-gateway /usr/local/bin/weed sql \
+docker compose exec kafka-gateway /usr/bin/weed-sql \
   -master=seaweedfs-master:9333 \
   -database=kafka \
   -query="SELECT id, timestamp, producer_id, counter, user_id, event_type FROM \"test-json-topic\" LIMIT 5;"
-

test/postgres/Dockerfile.seaweedfs

@@ -13,8 +13,9 @@ RUN go mod download
 # Copy source code
 COPY . .
 
-# Build the weed binary without CGO
+# Build the weed binaries without CGO
 RUN CGO_ENABLED=0 GOOS=linux go build -ldflags "-s -w" -o weed ./weed/
+RUN CGO_ENABLED=0 GOOS=linux go build -ldflags "-s -w" -o weed-db ./cmd/weed-db
 
 # Final stage - minimal runtime image
 FROM alpine:latest
@@ -24,11 +25,12 @@ RUN apk --no-cache add ca-certificates netcat-openbsd curl
 
 WORKDIR /root/
 
-# Copy the weed binary from builder stage
+# Copy the binaries from builder stage
 COPY --from=builder /app/weed .
+COPY --from=builder /app/weed-db .
 
 # Make it executable
-RUN chmod +x ./weed
+RUN chmod +x ./weed ./weed-db
 
 # Expose ports
 EXPOSE 9333 8888 8333 8085 9533 5432

test/postgres/SETUP_OVERVIEW.md

@@ -280,7 +280,7 @@ This test setup proves:
 - Comprehensive error handling
 
 ### ✅ Performance and Scalability
-- Direct SQL engine integration (same as `weed sql`)
+- Direct SQL engine integration (same as `weed-sql`)
 - No translation overhead for real queries
 - Efficient data access from stored formats
 - Scalable architecture with service discovery

test/postgres/docker-compose.yml

@@ -54,7 +54,7 @@ services:
       seaweedfs:
         condition: service_healthy
     command: >
-      ./weed db
+      ./weed-db
       -host=0.0.0.0
       -port=5432
       -master=seaweedfs:9333

weed/Makefile

@@ -9,6 +9,14 @@ all: install
 install:
 	go install -ldflags="-s -w"
 
+.PHONY: weed-db weed-sql
+
+weed-db:
+	go build -ldflags="-s -w" -o weed-db ./cmd/weed-db
+
+weed-sql:
+	go build -ldflags="-s -w" -o weed-sql ./cmd/weed-sql
+
 build_docker:
 	CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w"
 

weed/command/command.go

@@ -37,12 +37,10 @@ var Commands = []*Command{
 	cmdMqAgent,
 	cmdMqBroker,
 	cmdMqKafkaGateway,
-	cmdDB,
 	cmdS3,
 	cmdScaffold,
 	cmdServer,
 	cmdShell,
-	cmdSql,
 	cmdUpdate,
 	cmdUpload,
 	cmdVersion,

weed/server/postgres/DESIGN.md

@@ -296,9 +296,9 @@ jdbc:postgresql://localhost:5432/default?user=seaweedfs&password=secret
 
 ```bash
 # Start PostgreSQL protocol server
-weed db -port=5432 -auth=trust
+weed-db -port=5432 -auth=trust
-weed db -port=5432 -auth=password -users="admin:secret;readonly:pass"
+weed-db -port=5432 -auth=password -users="admin:secret;readonly:pass"
-weed db -port=5432 -tls-cert=server.crt -tls-key=server.key
+weed-db -port=5432 -tls-cert=server.crt -tls-key=server.key
 
 # Configuration options
 -host=localhost              # Listen host

weed/server/postgres/README.md

@@ -43,7 +43,7 @@ The PostgreSQL server now directly integrates with SeaweedFS Message Queue topic
 - **Real Schema Information**: Reads actual topic schemas from broker configuration
 - **Actual Data Access**: Queries real MQ data stored in Parquet and log files
 - **Dynamic Updates**: Reflects topic additions and schema changes automatically
-- **Consistent SQL Engine**: Uses the same SQL engine as `weed sql` command
+- **Consistent SQL Engine**: Uses the same SQL engine as `weed-sql` command
 
 ### Database Context Management
 - **Session Isolation**: Each PostgreSQL connection has its own database context
@@ -232,7 +232,7 @@ psql -h localhost -p 5432 -U seaweedfs -d default
 - **DESIGN.md**: Complete architecture and design overview
 - **IMPLEMENTATION.md**: Detailed implementation guide
 - **postgres-examples/**: Client examples and test scripts
-- **Command Documentation**: `weed db -help`
+- **Command Documentation**: `weed-db -help`
 
 ## Security Considerations