Create a _getAllIdsSelect method in the block collection

Author: dmanners

app/code/Magento/Cms/Model/ResourceModel/Block/Collection.php

@@ -78,4 +78,24 @@ protected function _renderFiltersBefore()
         $entityMetadata = $this->metadataPool->getMetadata(BlockInterface::class);
         $this->joinStoreRelationTable('cms_block_store', $entityMetadata->getLinkField());
     }
+
+    /**
+     * Create all ids retrieving select with limitation
+     * Backward compatibility with EAV collection
+     *
+     * @param int $limit
+     * @param int $offset
+     * @return \Magento\Eav\Model\Entity\Collection\AbstractCollection
+     */
+    protected function _getAllIdsSelect($limit = null, $offset = null)
+    {
+        $idsSelect = clone $this->getSelect();
+        $idsSelect->reset(\Magento\Framework\DB\Select::ORDER);
+        $idsSelect->reset(\Magento\Framework\DB\Select::LIMIT_COUNT);
+        $idsSelect->reset(\Magento\Framework\DB\Select::LIMIT_OFFSET);
+        $idsSelect->reset(\Magento\Framework\DB\Select::COLUMNS);
+        $idsSelect->columns($this->getResource()->getIdFieldName(), 'main_table');
+        $idsSelect->limit($limit, $offset);
+        return $idsSelect;
+    }
 }