fix: refresh metadata after schema changes

src/lib/sqlMetadataRefresh.ts

@@ -0,0 +1,19 @@
+export type SqlMetadataRefreshScope = "none" | "connection" | "database";
+
+const DATABASE_DDL_RE = /\b(CREATE|DROP)\s+(DATABASE|SCHEMA)\b/i;
+const OBJECT_DDL_RE =
+  /\b(CREATE|ALTER|DROP|RENAME)\s+(OR\s+REPLACE\s+)?(((GLOBAL|LOCAL)\s+)?TEMP(ORARY)?\s+)?(MATERIALIZED\s+)?(TABLE|VIEW|INDEX|SEQUENCE|PROCEDURE|FUNCTION|TRIGGER|TYPE)\b/i;
+
+function stripSqlMetadataComments(sql: string): string {
+  return sql
+    .replace(/\/\*[\s\S]*?\*\//g, " ")
+    .replace(/--.*$/gm, " ")
+    .replace(/#.*$/gm, " ");
+}
+
+export function sqlMetadataRefreshScope(sql: string): SqlMetadataRefreshScope {
+  const cleaned = stripSqlMetadataComments(sql);
+  if (DATABASE_DDL_RE.test(cleaned)) return "connection";
+  if (OBJECT_DDL_RE.test(cleaned)) return "database";
+  return "none";
+}