Chore/empty table errors (#29062)

* Fix errors on empty tables

* Unnecessary check

apps/studio/components/grid/query/Query.utils.ts

@@ -221,6 +221,7 @@ function applySorts(query: string, sorts: Sort[]) {
   if (sorts.length === 0) return query
   query += ` order by ${sorts
     .map((x) => {
+      if (!x.column) return null
       const order = x.ascending ? 'asc' : 'desc'
       const nullOrder = x.nullsFirst ? 'nulls first' : 'nulls last'
       return `${ident(x.table)}.${ident(x.column)} ${order} ${nullOrder}`

apps/studio/data/table-rows/table-rows-query.ts

@@ -151,7 +151,7 @@ export const getTableRowsSqlQuery = ({
     })
 
   // If sorts is empty and table row count is within threshold, use the primary key as the default sort
-  if (sorts.length === 0 && table.estimateRowCount <= THRESHOLD_COUNT) {
+  if (sorts.length === 0 && table.estimateRowCount <= THRESHOLD_COUNT && table.columns.length > 0) {
     const defaultOrderByColumns = getDefaultOrderByColumns(table)
     if (defaultOrderByColumns.length > 0) {
       defaultOrderByColumns.forEach((col) => {