snapshot of https://github.com/sqlc-dev/sqlc.git (main, 2026-09-16; blobs > 131072B omitted)

internal/engine/clickhouse/utils.go

@@ -0,0 +1,59 @@
+package clickhouse
+
+import (
+	"log"
+	"strings"
+
+	chast "github.com/sqlc-dev/doubleclick/ast"
+
+	"github.com/sqlc-dev/sqlc/internal/debug"
+	"github.com/sqlc-dev/sqlc/internal/sql/ast"
+)
+
+func todo(n chast.Node) *ast.TODO {
+	if debug.Active {
+		log.Printf("clickhouse.convert: Unknown node type %T\n", n)
+	}
+	return &ast.TODO{}
+}
+
+func identifier(id string) string {
+	return strings.ToLower(id)
+}
+
+func NewIdentifier(t string) *ast.String {
+	return &ast.String{Str: identifier(t)}
+}
+
+func parseTableName(n *chast.TableIdentifier) *ast.TableName {
+	return &ast.TableName{
+		Schema: identifier(n.Database),
+		Name:   identifier(n.Table),
+	}
+}
+
+func parseTableIdentifierToRangeVar(n *chast.TableIdentifier) *ast.RangeVar {
+	schemaname := identifier(n.Database)
+	relname := identifier(n.Table)
+	return &ast.RangeVar{
+		Schemaname: &schemaname,
+		Relname:    &relname,
+	}
+}
+
+func isNotNull(n *chast.ColumnDeclaration) bool {
+	if n.Type == nil {
+		return false
+	}
+	// Check if type is wrapped in Nullable()
+	// If it's Nullable, it can be null, so return false
+	// If it's not Nullable, it's NOT NULL by default in ClickHouse
+	if n.Type.Name != "" && strings.ToLower(n.Type.Name) == "nullable" {
+		return false
+	}
+	// Also check if Nullable field is explicitly set
+	if n.Nullable != nil && *n.Nullable {
+		return false
+	}
+	return true
+}