fix: avoid pushing all links of record at once

packages/nocodb/src/modules/jobs/jobs/at-import/helpers/readAndProcessData.ts

@@ -17,7 +17,7 @@ const BULK_DATA_BATCH_COUNT =
 const BULK_DATA_BATCH_SIZE =
   +process.env.AT_IMPORT_BULK_DATA_BATCH_SIZE || 20 * 1024; // import N bytes at a time
 const BULK_LINK_BATCH_COUNT =
-  +process.env.AT_IMPORT_BULK_LINK_BATCH_COUNT || 200; // import N links at a time
+  +process.env.AT_IMPORT_BULK_LINK_BATCH_COUNT || 500; // import N links at a time
 const BULK_PARALLEL_PROCESS = +process.env.AT_IMPORT_BULK_PARALLEL_PROCESS || 2; // process N records at a time
 const STREAM_BUFFER_LIMIT = +process.env.AT_IMPORT_STREAM_BUFFER_LIMIT || 100; // pause reading if we have more than N records to avoid backpressure
 const QUEUE_BUFFER_LIMIT = +process.env.AT_IMPORT_QUEUE_BUFFER_LIMIT || 20; // pause streaming if we have more than N records in the queue
@@ -406,14 +406,13 @@ export async function importLTARData({
                 const { id: _atId, ...rec } = record;
 
                 // todo: use actual alias instead of sanitized
-                assocTableData[assocMeta.modelMeta.id].push(
-                  ...(
-                    rec?.[atNcAliasRef[table.id][assocMeta.colMeta.title]] || []
-                  ).map((id) => ({
+                const links =
+                  rec?.[atNcAliasRef[table.id][assocMeta.colMeta.title]] || [];
+                for (const id of links) {
+                  assocTableData[assocMeta.modelMeta.id].push({
                     [assocMeta.curCol.title]: record.id,
                     [assocMeta.refCol.title]: id,
-                  })),
-                );
+                  });
 
                   if (
                     assocTableData[assocMeta.modelMeta.id].length >=
@@ -445,6 +444,7 @@ export async function importLTARData({
 
                     insertArray = [];
                   }
+                }
 
                 if (queue.size < QUEUE_BUFFER_LIMIT / 2) dataStream.resume();
                 resolve(true);