dev: writing converter

internal/cmd/generate.go

@@ -306,7 +306,7 @@ func parse(ctx context.Context, name, dir string, sql config.SQL, combo config.C
 		return nil, true
 	}
 	if err := c.ParseCatalog(sql.Schema); err != nil {
-		fmt.Fprintf(stderr, "# package %s\n", name)
+		fmt.Fprintf(stderr, "# parsing catalog: package %s\n", name)
 		if parserErr, ok := err.(*multierr.Error); ok {
 			for _, fileErr := range parserErr.Errs() {
 				printFileErr(stderr, dir, fileErr)
@@ -320,7 +320,7 @@ func parse(ctx context.Context, name, dir string, sql config.SQL, combo config.C
 		debug.Dump(c.Catalog())
 	}
 	if err := c.ParseQueries(sql.Queries, parserOpts); err != nil {
-		fmt.Fprintf(stderr, "# package %s\n", name)
+		fmt.Fprintf(stderr, "# parsing queries: package %s\n", name)
 		if parserErr, ok := err.(*multierr.Error); ok {
 			for _, fileErr := range parserErr.Errs() {
 				printFileErr(stderr, dir, fileErr)

internal/compiler/engine.go

@@ -73,6 +73,7 @@ func (c *Compiler) Catalog() *catalog.Catalog {
 }
 
 func (c *Compiler) ParseCatalog(schema []string) error {
+
 	return c.parseCatalog(schema)
 }
 

internal/engine/clickhouse/catalog.go

@@ -3,16 +3,14 @@ package clickhouse
 import "github.com/sqlc-dev/sqlc/internal/sql/catalog"
 
 func NewCatalog() *catalog.Catalog {
-	def := "main"
-	return &catalog.Catalog{
+	def := ""
+	c := &catalog.Catalog{
 		DefaultSchema: def,
-		Schemas:       []*catalog.Schema{
-			// defaultSchema(def),
+		Schemas: []*catalog.Schema{
+			&catalog.Schema{Name: ""},
 		},
 		Extensions: map[string]struct{}{},
 	}
-}
-
-func newTestCatalog() *catalog.Catalog {
-	return catalog.New("main")
+	c.Schemas = append(c.Schemas, getInformationSchema())
+	return c
 }

internal/engine/clickhouse/information_schema.go

@@ -0,0 +1,12 @@
+package clickhouse
+
+import "github.com/sqlc-dev/sqlc/internal/sql/catalog"
+
+func getInformationSchema() *catalog.Schema {
+	s := &catalog.Schema{Name: "information_schema"}
+	s.Funcs = make([]*catalog.Function, 0)
+	s.Tables = []*catalog.Table{
+		//TODO
+	}
+	return s
+}