fix(griffin): as of join failed when timestamp was not in select clause

core/src/main/java/io/questdb/griffin/SqlCodeGenerator.java

@@ -623,6 +623,7 @@ private RecordCursorFactory generateJoins(QueryModel model, SqlExecutionContext
         RecordCursorFactory master = null;
         CharSequence masterAlias = null;
 
+        executionContext.pushTimestampRequiredFlag(true);
         try {
             int n = ordered.size();
             assert n > 0;
@@ -816,6 +817,8 @@ private RecordCursorFactory generateJoins(QueryModel model, SqlExecutionContext
         } catch (CairoException | SqlException e) {
             Misc.free(master);
             throw e;
+        } finally {
+            executionContext.popTimestampRequiredFlag();
         }
     }
 
@@ -1452,6 +1455,7 @@ private RecordCursorFactory generateSelectChoose(QueryModel model, SqlExecutionC
                             metadata.isSymbolTableStatic(timestampIndex)
                     )
             );
+            selectMetadata.setTimestampIndex(selectMetadata.getColumnCount() - 1);
         }
 
         return new SelectedRecordCursorFactory(selectMetadata, columnCrossIndex, factory);

core/src/test/java/io/questdb/griffin/SqlParserTest.java

@@ -2747,6 +2747,23 @@ public void testJoinTimestampPropagation() throws SqlException {
         );
     }
 
+    @Test
+    public void testJoinTimestampPropagationWhenTimestampNotSelected() throws SqlException {
+        assertQuery(
+                "select-distinct id from (select-choose [id] id from ((select-choose [a.id id] a.created ts_stop, a.id id, b.created ts_start, b.id id1 from (select [id, created] from (select-choose [id] id, created, event, timestamp from ((select-choose [id, created] id, created, event, timestamp from (select [id, created, event] from telemetry_users timestamp (timestamp) where event = 101 and id != '0x05ab1e873d165b00000005743f2c17') order by created) _xQdbA7) timestamp (created)) a lt join select [id, created] from (select-choose [id] id, created, event, timestamp from ((select-choose [id, created] id, created, event, timestamp from (select [id, created, event] from telemetry_users timestamp (timestamp) where event = 100) order by created) _xQdbA4) timestamp (created)) b on b.id = a.id post-join-where a.created - b.created > 10000000000)) _xQdbA1))",
+                "with \n" +
+                        "    starts as ((telemetry_users where event = 100 order by created) timestamp(created)),\n" +
+                        "    stops as ((telemetry_users where event = 101 order by created) timestamp(created))\n" +
+                        "\n" +
+                        "select distinct id from (select a.created ts_stop, a.id, b.created ts_start, b.id from stops a lt join starts b on (id)) where id <> '0x05ab1e873d165b00000005743f2c17' and ts_stop - ts_start > 10000000000\n",
+                modelOf("telemetry_users")
+                        .col("id", ColumnType.LONG256)
+                        .col("created", ColumnType.TIMESTAMP)
+                        .col("event", ColumnType.SHORT)
+                        .timestamp()
+        );
+    }
+
     @Test
     public void testJoinTriangle() throws Exception {
         assertQuery(