yujun777 opened a new pull request, #64419:
URL: https://github.com/apache/doris/pull/64419
## Problem
`statistics/test_analyze_mv.groovy` line 614 asserts `assertEquals("-1",
result_row[0][4])` immediately after `truncate table`, expecting
`report_row_count_for_nereids` to be -1 (unreported). This is a race condition:
BE asynchronously reports new tablet stats (0 rows for empty table) to FE, and
if the report arrives before the assertion, the value is 0 instead of -1.
On cloud, this is amplified by `CloudTabletStatMgr` unconditionally setting
`rowCountReported=true`, making the -1 state exceptionally short-lived or
unobservable.
## Root Cause
After `truncate table`, the FE stat manager (`CloudTabletStatMgr` /
`TabletStatMgr`) updates `MaterializedIndex.rowCount` and sets
`rowCountReported=true`. The test assertion races with this update:
- If BE hasn't reported yet → `getRowCountForIndex(id, true)` returns -1 ✓
- If BE has reported → returns 0 ✗ (test fails)
## Fix
Change the assertion to accept both -1 and 0, since both are valid states
for an empty table after truncate:
- -1: tablet row count not yet reported
- 0: tablet row count reported as 0 (empty table)
Add assertion message with actual value for debuggability.
## JIRA
Closes DORIS-26318
🤖 Generated with [Claude Code](https://claude.com/claude-code)
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