From 0730f1324d344b9535409688c01dfaad99ebd2de Mon Sep 17 00:00:00 2001
From: Aliaksandr Valialkin <valyala@victoriametrics.com>
Date: Thu, 27 Jun 2024 19:43:19 +0200
Subject: [PATCH] lib/logstorage: it is safe using `| unroll` pipe in live
 tailing

`| unroll` pipe can make multiple copies of rows from the input row.
This doesn't break live tailing, so allow `| unroll` pipe in live tailing.
---
 lib/logstorage/parser_test.go | 2 +-
 lib/logstorage/pipe_unroll.go | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/logstorage/parser_test.go b/lib/logstorage/parser_test.go
index 506fc89ede..78558e329e 100644
--- a/lib/logstorage/parser_test.go
+++ b/lib/logstorage/parser_test.go
@@ -2075,5 +2075,5 @@ func TestQueryCanLiveTail(t *testing.T) {
 	f("* | unpack_json", true)
 	f("* | unpack_logfmt", true)
 	f("* | unpack_syslog", true)
-	f("* | unroll by (a)", false)
+	f("* | unroll by (a)", true)
 }
diff --git a/lib/logstorage/pipe_unroll.go b/lib/logstorage/pipe_unroll.go
index 333fcc3289..11a0125298 100644
--- a/lib/logstorage/pipe_unroll.go
+++ b/lib/logstorage/pipe_unroll.go
@@ -33,7 +33,7 @@ func (pu *pipeUnroll) String() string {
 }
 
 func (pu *pipeUnroll) canLiveTail() bool {
-	return false
+	return true
 }
 
 func (pu *pipeUnroll) optimize() {