sq inspect now shows catalog (when outputting in JSON and YAML format) (

#329)

CHANGELOG.md

@@ -7,6 +7,21 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 Breaking changes are annotated with ☢️, and alpha/beta features with 🐥.
 
+## [v0.43.1] - 2023-11-19
+
+### Added
+
+- Related to [#270], the output of `sq inspect` now includes the
+  source's catalog (in JSON and YAML output formats).
+
+### Fixed
+
+- MySQL driver didn't populate all expected values for `sq inspect --overview`.
+
+### Changed
+
+- ☢️ Removed unused `--exec` and `--query` flags from `sq sql` command.
+
 ## [v0.43.0] - 2023-11-18
 
 ### Added
@@ -871,3 +886,4 @@ make working with lots of sources much easier.
 [v0.42.0]: https://github.com/neilotoole/sq/compare/v0.41.1...v0.42.0
 [v0.42.1]: https://github.com/neilotoole/sq/compare/v0.42.0...v0.42.1
 [v0.43.0]: https://github.com/neilotoole/sq/compare/v0.42.1...v0.43.0
+[v0.43.1]: https://github.com/neilotoole/sq/compare/v0.43.0...v0.43.1

cli/cmd_inspect_test.go

@@ -124,6 +124,13 @@ func TestCmdInspect_json_yaml(t *testing.T) {
 						require.Nil(t, srcMeta.Tables)
 						require.Zero(t, srcMeta.TableCount)
 						require.Zero(t, srcMeta.ViewCount)
+						require.NotEmpty(t, srcMeta.Name)
+						require.NotEmpty(t, srcMeta.Schema)
+						require.NotEmpty(t, srcMeta.FQName)
+						require.NotEmpty(t, srcMeta.DBDriver)
+						require.NotEmpty(t, srcMeta.DBProduct)
+						require.NotEmpty(t, srcMeta.DBVersion)
+						require.NotZero(t, srcMeta.Size)
 					})
 
 					t.Run("inspect_dbprops", func(t *testing.T) {

cli/cmd_sql.go

@@ -31,12 +31,7 @@ func newSQLCmd() *cobra.Command {
 		Short: "Execute DB-native SQL query or statement",
 		Long: `Execute a SQL query or statement against the active source using the
 source's SQL dialect. Use flag --src=@HANDLE to specify an alternative
-source.
-
-If flag --query is set, sq will run the input as a query
-(SELECT) and return the query rows. If flag --exec is set,
-sq will execute the input and return the result. If neither
-flag is set, sq attempts to determine the appropriate mode.`,
+source.`,
 		RunE: execSQL,
 		Example: `  # Select from active source
   $ sq sql 'SELECT * FROM actor'
@@ -45,26 +40,19 @@ flag is set, sq attempts to determine the appropriate mode.`,
   $ sq sql --src=@sakila_pg12 'SELECT * FROM actor'
 
   # Drop table @sakila_pg12.actor
-  $ sq sql --exec --src=@sakila_pg12 'DROP TABLE actor'
+  $ sq sql --src=@sakila_pg12 'DROP TABLE actor'
 
   # Select from active source and write results to @sakila_ms17.actor
   $ sq sql 'SELECT * FROM actor' --insert=@sakila_ms17.actor`,
 	}
 
 	addQueryCmdFlags(cmd)
-
-	// TODO: These flags aren't actually implemented yet.
-	// This entire --exec mechanism needs to be revisited.
-	// User explicitly wants to execute the SQL using sql.DB.Query
-	// cmd.Flags().Bool(flag.SQLQuery, false, flag.SQLQueryUsage)
-	// User explicitly wants to execute the SQL using sql.DB.Exec
-	// cmd.Flags().Bool(flag.SQLExec, false, flag.SQLExecUsage)
-
 	return cmd
 }
 
 func execSQL(cmd *cobra.Command, args []string) error {
-	ru := run.FromContext(cmd.Context())
+	ctx := cmd.Context()
+	ru := run.FromContext(ctx)
 	switch len(args) {
 	default:
 		return errz.New("a single query string is required")
@@ -76,7 +64,7 @@ func execSQL(cmd *cobra.Command, args []string) error {
 		}
 	}
 
-	err := determineSources(cmd.Context(), ru, true)
+	err := determineSources(ctx, ru, true)
 	if err != nil {
 		return err
 	}
@@ -93,7 +81,7 @@ func execSQL(cmd *cobra.Command, args []string) error {
 	if !cmdFlagChanged(cmd, flag.Insert) {
 		// The user didn't specify the --insert=@src.tbl flag,
 		// so we just want to print the records.
-		return execSQLPrint(cmd.Context(), ru, activeSrc)
+		return execSQLPrint(ctx, ru, activeSrc)
 	}
 
 	// Instead of printing the records, they will be
@@ -113,7 +101,7 @@ func execSQL(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
-	return execSQLInsert(cmd.Context(), ru, activeSrc, destSrc, destTbl)
+	return execSQLInsert(ctx, ru, activeSrc, destSrc, destTbl)
 }
 
 // execSQLPrint executes the SQL and prints resulting records
@@ -144,7 +132,7 @@ func execSQLInsert(ctx context.Context, ru *run.Run,
 	ctx, cancelFn := context.WithCancel(ctx)
 	defer cancelFn()
 
-	fromDB, err := pools.Open(ctx, fromSrc)
+	fromPool, err := pools.Open(ctx, fromSrc)
 	if err != nil {
 		return err
 	}
@@ -154,18 +142,17 @@ func execSQLInsert(ctx context.Context, ru *run.Run,
 		return err
 	}
 
-	// Note: We don't need to worry about closing fromDB and
+	// Note: We don't need to worry about closing fromPool and
 	// destPool because they are closed by pools.Close, which
 	// is invoked by ru.Close, and ru is closed further up the
 	// stack.
-
 	inserter := libsq.NewDBWriter(
 		destPool,
 		destTbl,
 		driver.OptTuningRecChanSize.Get(destSrc.Options),
 		libsq.DBWriterCreateTableIfNotExistsHook(destTbl),
 	)
-	err = libsq.QuerySQL(ctx, fromDB, nil, inserter, args[0])
+	err = libsq.QuerySQL(ctx, fromPool, nil, inserter, args[0])
 	if err != nil {
 		return errz.Wrapf(err, "insert to {%s} failed", source.Target(destSrc, destTbl))
 	}
@@ -178,7 +165,7 @@ func execSQLInsert(ctx context.Context, ru *run.Run,
 	lg.FromContext(ctx).Debug(lgm.RowsAffected, lga.Count, affected)
 
 	// TODO: Should really use a Printer here
-	fmt.Fprintf(ru.Out, stringz.Plu("Inserted %d row(s) into %s\n",
+	_, _ = fmt.Fprintf(ru.Out, stringz.Plu("Inserted %d row(s) into %s\n",
 		int(affected)), affected, source.Target(destSrc, destTbl))
 	return nil
 }

drivers/mysql/metadata.go

@@ -291,20 +291,17 @@ func getSourceMetadata(ctx context.Context, src *source.Source, db sqlz.DB, noSc
 		})
 	})
 
-	if noSchema {
-		return md, nil
-	}
-
-	g.Go(func() error {
-		return doRetry(gCtx, func() error {
-			var err error
-			md.Tables, err = getAllTblMetas(gCtx, db)
-			return err
+	if !noSchema {
+		g.Go(func() error {
+			return doRetry(gCtx, func() error {
+				var err error
+				md.Tables, err = getAllTblMetas(gCtx, db)
+				return err
+			})
 		})
-	})
+	}
 
-	err := g.Wait()
-	if err != nil {
+	if err := g.Wait(); err != nil {
 		return nil, err
 	}
 
@@ -322,20 +319,29 @@ func getSourceMetadata(ctx context.Context, src *source.Source, db sqlz.DB, noSc
 func setSourceSummaryMeta(ctx context.Context, db sqlz.DB, md *source.Metadata) error {
 	const summaryQuery = `SELECT @@GLOBAL.version, @@GLOBAL.version_comment, @@GLOBAL.version_compile_os,
        @@GLOBAL.version_compile_machine, DATABASE(), CURRENT_USER(),
+       (SELECT CATALOG_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = DATABASE() LIMIT 1),
        (SELECT SUM( data_length + index_length )
         FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE()) AS size`
 
 	var version, versionComment, versionOS, versionArch, schema string
 	var size sql.NullInt64
-	err := db.QueryRowContext(ctx, summaryQuery).Scan(&version, &versionComment, &versionOS, &versionArch, &schema,
-		&md.User, &size)
+	err := db.QueryRowContext(ctx, summaryQuery).Scan(
+		&version,
+		&versionComment,
+		&versionOS,
+		&versionArch,
+		&schema,
+		&md.User,
+		&md.Catalog,
+		&size,
+	)
 	if err != nil {
 		return errw(err)
 	}
 
 	md.Name = schema
 	md.Schema = schema
-	md.FQName = schema
+	md.FQName = md.Catalog + "." + schema
 	if size.Valid {
 		md.Size = size.Int64
 	}

drivers/mysql/mysql.go

@@ -229,16 +229,28 @@ func (d *driveri) ListSchemas(ctx context.Context, db sqlz.DB) ([]string, error)
 	return schemas, nil
 }
 
-// CurrentCatalog implements driver.SQLDriver. MySQL does not support catalogs,
-// so this method returns an error.
-func (d *driveri) CurrentCatalog(_ context.Context, _ sqlz.DB) (string, error) {
-	return "", errz.New("mysql: catalog mechanism not supported")
+// CurrentCatalog implements driver.SQLDriver. Although MySQL doesn't really
+// support catalogs, we return the value found in INFORMATION_SCHEMA.SCHEMATA,
+// i.e. "def".
+func (d *driveri) CurrentCatalog(ctx context.Context, db sqlz.DB) (string, error) {
+	var catalog string
+
+	if err := db.QueryRowContext(ctx, selectCatalog).Scan(&catalog); err != nil {
+		return "", errw(err)
+	}
+	return catalog, nil
 }
 
-// ListCatalogs implements driver.SQLDriver. MySQL does not support catalogs,
-// so this method returns an error.
-func (d *driveri) ListCatalogs(_ context.Context, _ sqlz.DB) ([]string, error) {
-	return nil, errz.New("mysql: catalog mechanism not supported")
+// ListCatalogs implements driver.SQLDriver. MySQL does not really support catalogs,
+// but this method simply delegates to CurrentCatalog, which returns the value
+// found in INFORMATION_SCHEMA.SCHEMATA, i.e. "def".
+func (d *driveri) ListCatalogs(ctx context.Context, db sqlz.DB) ([]string, error) {
+	catalog, err := d.CurrentCatalog(ctx, db)
+	if err != nil {
+		return nil, err
+	}
+
+	return []string{catalog}, nil
 }
 
 // AlterTableRename implements driver.SQLDriver.
@@ -600,12 +612,14 @@ func tblfmt[T string | tablefq.T](tbl T) string {
 	return tfq.Render(stringz.BacktickQuote)
 }
 
+const selectCatalog = `SELECT CATALOG_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = DATABASE() LIMIT 1`
+
 func doRenderFuncCatalog(_ *render.Context, fn *ast.FuncNode) (string, error) {
 	if fn.FuncName() != ast.FuncNameCatalog {
 		// Shouldn't happen
 		return "", errz.Errorf("expected %s function, got %q", ast.FuncNameCatalog, fn.FuncName())
 	}
 
-	const frag = `(SELECT CATALOG_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = DATABASE() LIMIT 1)`
+	const frag = `(` + selectCatalog + `)`
 	return frag, nil
 }

drivers/postgres/metadata.go

@@ -206,6 +206,7 @@ current_setting('server_version'), version(), "current_user"()`
 		return nil, errz.New("NULL value for current_schema(): check privileges and search_path")
 	}
 
+	md.Catalog = md.Name
 	md.Schema = schema.String
 	md.FQName = md.Name + "." + schema.String
 

drivers/sqlite3/sqlite3.go

@@ -960,7 +960,9 @@ func (p *pool) SourceMetadata(ctx context.Context, noSchema bool) (*source.Metad
 
 	md.Size = fi.Size()
 	md.Name = fi.Name()
-	md.FQName = fi.Name() + "/" + md.Schema
+	md.FQName = fi.Name() + "." + md.Schema
+	// SQLite doesn't support catalog, but we conventionally set it to "default"
+	md.Catalog = "default"
 	md.Location = p.src.Location
 
 	md.DBProperties, err = getDBProperties(ctx, p.db)

drivers/sqlserver/metadata.go

@@ -138,6 +138,7 @@ GROUP BY database_id) AS total_size_bytes`
 
 	md.Name = catalog
 	md.FQName = catalog + "." + schema
+	md.Catalog = catalog
 	md.Schema = schema
 
 	if md.DBProperties, err = getDBProperties(ctx, db); err != nil {

libsq/driver/driver_test.go

@@ -608,15 +608,16 @@ func TestSQLDriver_CurrentCatalog(t *testing.T) {
 	}
 }
 
-func TestSQLDriver_CurrentSchema(t *testing.T) {
+func TestSQLDriver_CurrentSchemaCatalog(t *testing.T) {
 	testCases := []struct {
-		handle string
-		want   string
+		handle      string
+		wantSchema  string
+		wantCatalog string
 	}{
-		{sakila.SL3, "main"},
-		{sakila.Pg, "public"},
-		{sakila.My, "sakila"},
-		{sakila.MS, "dbo"},
+		{sakila.SL3, "main", "default"},
+		{sakila.Pg, "public", "sakila"},
+		{sakila.My, "sakila", "def"},
+		{sakila.MS, "dbo", "sakila"},
 	}
 
 	for _, tc := range testCases {
@@ -627,16 +628,26 @@ func TestSQLDriver_CurrentSchema(t *testing.T) {
 
 			gotSchema, err := drvr.CurrentSchema(th.Context, db)
 			require.NoError(t, err)
-			require.Equal(t, tc.want, gotSchema)
+			require.Equal(t, tc.wantSchema, gotSchema)
 
 			md, err := pool.SourceMetadata(th.Context, false)
 			require.NoError(t, err)
 			require.NotNil(t, md)
-			require.Equal(t, md.Schema, gotSchema)
+			require.Equal(t, md.Schema, tc.wantSchema)
+			require.Equal(t, md.Catalog, tc.wantCatalog)
 
 			gotSchemas, err := drvr.ListSchemas(th.Context, db)
 			require.NoError(t, err)
 			require.Contains(t, gotSchemas, gotSchema)
+
+			if drvr.Dialect().Catalog {
+				gotCatalog, err := drvr.CurrentCatalog(th.Context, db)
+				require.NoError(t, err)
+				require.Equal(t, tc.wantCatalog, gotCatalog)
+				gotCatalogs, err := drvr.ListCatalogs(th.Context, db)
+				require.NoError(t, err)
+				require.Contains(t, gotCatalogs, gotCatalog)
+			}
 		})
 	}
 }

libsq/source/metadata.go

@@ -28,6 +28,9 @@ type Metadata struct {
 	// This may be empty for some sources.
 	Schema string `json:"schema,omitempty" yaml:"schema,omitempty"`
 
+	// Catalog is the catalog name, for example "sakila".
+	Catalog string `json:"catalog,omitempty" yaml:"catalog,omitempty"`
+
 	// Driver is the source driver type.
 	Driver DriverType `json:"driver" yaml:"driver"`