Escape correctly.

clients/databricks/store.go

@@ -122,7 +122,7 @@ func (s Store) PrepareTemporaryTable(ctx context.Context, tableData *optimizatio
 
 	// Copy file from DBFS -> table via COPY INTO, ref: https://docs.databricks.com/en/sql/language-manual/delta-copy-into.html
 	// We'll need \\\\N here because we need to string escape.
-	copyCommand := fmt.Sprintf(`COPY INTO %s BY POSITION FROM '%s' FILEFORMAT = CSV FORMAT_OPTIONS ('delimiter' = '\t', 'header' = 'false', 'nullValue' = '\\\\N')`, tempTableID.FullyQualifiedName(), file.DBFSFilePath())
+	copyCommand := fmt.Sprintf(`COPY INTO %s BY POSITION FROM '%s' FILEFORMAT = CSV FORMAT_OPTIONS ('escape' = '"', 'delimiter' = '\t', 'header' = 'false', 'nullValue' = '\\\\N')`, tempTableID.FullyQualifiedName(), file.DBFSFilePath())
 	if _, err = s.ExecContext(ctx, copyCommand); err != nil {
 		return fmt.Errorf("failed to run COPY INTO for temporary table: %w", err)
 	}