diff --git a/src/EloquentDataTable.php b/src/EloquentDataTable.php
index edcb9294..bb16943b 100644
--- a/src/EloquentDataTable.php
+++ b/src/EloquentDataTable.php
@@ -167,7 +167,7 @@ protected function resolveRelationColumn(string $column): string
         $relation = str_replace('[]', '', implode('.', $parts));
 
         if ($this->isNotEagerLoaded($relation)) {
-            return $column;
+            return parent::resolveRelationColumn($column);
         }
 
         return $this->joinEagerLoadedColumn($relation, $columnName);
@@ -188,14 +188,14 @@ protected function joinEagerLoadedColumn($relation, $relationColumn)
         $lastQuery = $this->query;
         foreach (explode('.', $relation) as $eachRelation) {
             $model = $lastQuery->getRelation($eachRelation);
-            $lastAlias = $tableAlias ?: $lastQuery->getModel()->getTable();
+            $lastAlias = $tableAlias ?: $this->getTablePrefix($lastQuery);
             $tableAlias = $tableAlias.'_'.$eachRelation;
             $pivotAlias = $tableAlias.'_pivot';
             switch (true) {
                 case $model instanceof BelongsToMany:
                     $pivot = $model->getTable().' as '.$pivotAlias;
                     $pivotPK = $pivotAlias.'.'.$model->getForeignPivotKeyName();
-                    $pivotFK = $lastAlias.'.'.$model->getParentKeyName();
+                    $pivotFK = ltrim($lastAlias.'.'.$model->getParentKeyName(), '.');
                     $this->performJoin($pivot, $pivotPK, $pivotFK);
 
                     $related = $model->getRelated();
@@ -211,7 +211,7 @@ protected function joinEagerLoadedColumn($relation, $relationColumn)
                 case $model instanceof HasOneThrough:
                     $pivot = explode('.', $model->getQualifiedParentKeyName())[0].' as '.$pivotAlias; // extract pivot table from key
                     $pivotPK = $pivotAlias.'.'.$model->getFirstKeyName();
-                    $pivotFK = $lastAlias.'.'.$model->getLocalKeyName();
+                    $pivotFK = ltrim($lastAlias.'.'.$model->getLocalKeyName(), '.');
                     $this->performJoin($pivot, $pivotPK, $pivotFK);
 
                     $related = $model->getRelated();
@@ -227,12 +227,12 @@ protected function joinEagerLoadedColumn($relation, $relationColumn)
                 case $model instanceof HasOneOrMany:
                     $table = $model->getRelated()->getTable().' as '.$tableAlias;
                     $foreign = $tableAlias.'.'.$model->getForeignKeyName();
-                    $other = $lastAlias.'.'.$model->getLocalKeyName();
+                    $other = ltrim($lastAlias.'.'.$model->getLocalKeyName(), '.');
                     break;
 
                 case $model instanceof BelongsTo:
                     $table = $model->getRelated()->getTable().' as '.$tableAlias;
-                    $foreign = $lastAlias.'.'.$model->getForeignKeyName();
+                    $foreign = ltrim($lastAlias.'.'.$model->getForeignKeyName(), '.');
                     $other = $tableAlias.'.'.$model->getOwnerKeyName();
                     break;
 
diff --git a/src/QueryDataTable.php b/src/QueryDataTable.php
index 09d4fa46..f70125b8 100644
--- a/src/QueryDataTable.php
+++ b/src/QueryDataTable.php
@@ -388,7 +388,7 @@ public function getQuery(): QueryBuilder
      */
     protected function resolveRelationColumn(string $column): string
     {
-        return $column;
+        return $this->addTablePrefix($this->query, $column);
     }
 
     /**
@@ -451,7 +451,7 @@ protected function castColumn(string $column): string
      */
     protected function compileQuerySearch($query, string $column, string $keyword, string $boolean = 'or'): void
     {
-        $column = $this->addTablePrefix($query, $column);
+        $column = $this->wrap($this->addTablePrefix($query, $column));
         $column = $this->castColumn($column);
         $sql = $column.' LIKE ?';
 
@@ -470,20 +470,45 @@ protected function compileQuerySearch($query, string $column, string $keyword, s
      */
     protected function addTablePrefix($query, string $column): string
     {
-        if (! str_contains($column, '.')) {
-            $q = $this->getBaseQueryBuilder($query);
-            $from = $q->from ?? '';
+        // Column is already prefixed
+        if (str_contains($column, '.')) {
+            return $column;
+        }
 
-            if (! $from instanceof Expression) {
-                if (str_contains((string) $from, ' as ')) {
-                    $from = explode(' as ', (string) $from)[1];
-                }
+        $q = $this->getBaseQueryBuilder($query);
+
+        // Column is an alias, no prefix required
+        foreach ($q->columns ?? [] as $select) {
+            $sql = trim($select instanceof Expression ? $select->getValue($this->getConnection()->getQueryGrammar()) : $select);
+            if (str_ends_with($sql, ' as '.$column) || str_ends_with($sql, ' as '.$this->wrap($column))) {
+                return $column;
+            }
+        }
+
+        // Add table prefix to column
+        return $this->getTablePrefix($query).'.'.$column;
+    }
 
-                $column = $from.'.'.$column;
+    /**
+     * Try to get the base table prefix.
+     * To be used to prevent ambiguous field name.
+     *
+     * @param  QueryBuilder|EloquentBuilder  $query
+     */
+    protected function getTablePrefix($query): ?string
+    {
+        $q = $this->getBaseQueryBuilder($query);
+        $from = $q->from ?? '';
+
+        if (! $from instanceof Expression) {
+            if (str_contains((string) $from, ' as ')) {
+                $from = explode(' as ', (string) $from)[1];
             }
+
+            return $from;
         }
 
-        return $this->wrap($column);
+        return null;
     }
 
     /**