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
@@ -406,44 +406,44 @@ export async function importLTARData({
                 const { id: _atId, ...rec } = record;
 
                 // todo: use actual alias instead of sanitized
-                assocTableData[assocMeta.modelMeta.id].push(
+                const links =
-                  ...(
+                  rec?.[atNcAliasRef[table.id][assocMeta.colMeta.title]] || [];
-                    rec?.[atNcAliasRef[table.id][assocMeta.colMeta.title]] || []
+                for (const id of links) {
-                  ).map((id) => ({
+                  assocTableData[assocMeta.modelMeta.id].push({
                     [assocMeta.curCol.title]: record.id,
                     [assocMeta.refCol.title]: id,
-                  })),
-                );
-
-                if (
-                  assocTableData[assocMeta.modelMeta.id].length >=
-                  BULK_LINK_BATCH_COUNT
-                ) {
-                  let insertArray = assocTableData[
-                    assocMeta.modelMeta.id
-                  ].splice(0, assocTableData[assocMeta.modelMeta.id].length);
-
-                  const lastImportedCount = importedCount;
-                  importedCount += insertArray.length;
-
-                  logBasic(
-                    `:: Importing '${
-                      table.title
-                    }' LTAR data :: ${lastImportedCount} - ${
-                      lastImportedCount + insertArray.length
-                    }`,
-                  );
-
-                  await services.bulkDataService.bulkDataInsert({
-                    baseName,
-                    tableName: assocMeta.modelMeta.id,
-                    body: insertArray,
-                    cookie: {},
-                    skip_hooks: true,
-                    foreign_key_checks: !!source.isMeta(),
                   });
 
-                  insertArray = [];
+                  if (
+                    assocTableData[assocMeta.modelMeta.id].length >=
+                    BULK_LINK_BATCH_COUNT
+                  ) {
+                    let insertArray = assocTableData[
+                      assocMeta.modelMeta.id
+                    ].splice(0, assocTableData[assocMeta.modelMeta.id].length);
+
+                    const lastImportedCount = importedCount;
+                    importedCount += insertArray.length;
+
+                    logBasic(
+                      `:: Importing '${
+                        table.title
+                      }' LTAR data :: ${lastImportedCount} - ${
+                        lastImportedCount + insertArray.length
+                      }`,
+                    );
+
+                    await services.bulkDataService.bulkDataInsert({
+                      baseName,
+                      tableName: assocMeta.modelMeta.id,
+                      body: insertArray,
+                      cookie: {},
+                      skip_hooks: true,
+                      foreign_key_checks: !!source.isMeta(),
+                    });
+
+                    insertArray = [];
+                  }
                 }
 
                 if (queue.size < QUEUE_BUFFER_LIMIT / 2) dataStream.resume();