From 975b2b6f016dc564808e30c8b60e99914cb43a8e Mon Sep 17 00:00:00 2001
From: Alexey Milovidov <milovidov@clickhouse.com>
Date: Fri, 24 Jul 2026 23:33:36 +0000
Subject: [PATCH] hyrise: pass split -a3 so 100 chunks work
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Bumping the per-piece row count to 1 M rows means the split output is
100 pieces (hits_part_001.csv … hits_part_100.csv). `split`'s default
--numeric-suffixes suffix width is -a2, which caps at 01..99 — the
100th write fails with

    split: output file suffixes exhausted

and load exits rc=1 133 s into the CSV split (hyrise never sees the
first piece). Pass -a3 explicitly.
---
 hyrise/load | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/hyrise/load b/hyrise/load
index a4ff68dfab..2e9fa259b7 100755
--- a/hyrise/load
+++ b/hyrise/load
@@ -38,7 +38,10 @@ if [ ! -f data/hits.bin ]; then
         lines_per_piece=1000000
     fi
     if [ -f hits.csv ]; then
-        split -l "$lines_per_piece" --numeric-suffixes=1 --additional-suffix=.csv \
+        # -a3: 3-digit suffixes so 100+ pieces work. Default (-a2) gives
+        # 01..99 and fails with "output file suffixes exhausted" once
+        # we cross 100 pieces (lines_per_piece=1000000 → 100 pieces).
+        split -a3 -l "$lines_per_piece" --numeric-suffixes=1 --additional-suffix=.csv \
             hits.csv data/hits_part_
         rm hits.csv
     fi