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show databases works

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chrislu committed 2025-09-01 01:08:11 -07:00
1 parent 675ec42fad
commit aa883472a5
4 files changed
+130 -79
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weed/command/sql.go
+16 -16
View File
@@ -19,15 +19,15 @@ func init() {
}
var cmdSql = &Command{
UsageLine: "sql [-server=localhost:8888] [-interactive] [-file=query.sql] [-output=table|json|csv] [-database=dbname] [-query=\"SQL\"]",
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
- Single query: weed sql --query "SELECT * FROM user_events"
- Batch from file: weed sql --file queries.sql
- Context switching: weed sql --database analytics --interactive
- Interactive shell (default): weed sql -interactive
- Single query: weed sql -query "SELECT * FROM user_events"
- Batch from file: weed sql -file queries.sql
- Context switching: weed sql -database analytics -interactive
Output Formats:
- table: ASCII table format (default for interactive)
@@ -42,16 +42,16 @@ Features:
- Database context switching
Examples:
weed sql --interactive
weed sql --query "SHOW DATABASES" --output json
weed sql --file batch_queries.sql --output csv
weed sql --database analytics --query "SELECT COUNT(*) FROM metrics"
weed sql --server broker1:8888 --interactive
weed sql -interactive
weed sql -query "SHOW DATABASES" -output json
weed sql -file batch_queries.sql -output csv
weed sql -database analytics -query "SELECT COUNT(*) FROM metrics"
weed sql -master broker1:9333 -interactive
`,
}
var (
sqlServer = cmdSql.Flag.String("server", "localhost:8888", "SeaweedFS server address")
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)")
@@ -77,8 +77,8 @@ type SQLContext struct {
}
func runSql(command *Command, args []string) bool {
// Initialize SQL engine
sqlEngine := engine.NewSQLEngine(*sqlServer)
// Initialize SQL engine with master address for service discovery
sqlEngine := engine.NewSQLEngine(*sqlMaster)
// Determine execution mode and output format
interactive := *sqlInteractive || (*sqlQuery == "" && *sqlFile == "")
@@ -131,7 +131,7 @@ func executeSingleQuery(ctx *SQLContext, query string) bool {
return executeAndDisplay(ctx, query, false)
}
fmt.Printf("Executing query against %s...\n", *sqlServer)
fmt.Printf("Executing query against %s...\n", *sqlMaster)
return executeAndDisplay(ctx, query, true)
}
@@ -144,7 +144,7 @@ func executeFileQueries(ctx *SQLContext, filename string) bool {
}
if ctx.outputFormat == OutputTable && ctx.interactive {
fmt.Printf("Executing queries from %s against %s...\n", filename, *sqlServer)
fmt.Printf("Executing queries from %s against %s...\n", filename, *sqlMaster)
}
// Split file content into individual queries (simple approach)
@@ -172,7 +172,7 @@ func executeFileQueries(ctx *SQLContext, filename string) bool {
func runInteractiveShell(ctx *SQLContext) bool {
fmt.Println("🚀 SeaweedFS Enhanced SQL Interface")
fmt.Println("Type 'help;' for help, 'exit;' to quit")
fmt.Printf("Connected to: %s\n", *sqlServer)
fmt.Printf("Connected to master: %s\n", *sqlMaster)
if ctx.currentDatabase != "" {
fmt.Printf("Current database: %s\n", ctx.currentDatabase)
}