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MDEV-23699 Assertion failed in ha_tina::delete_row

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When REPAIRing a CSV table, the CSV engine marks the table as having
no rows in the case that there are rows only in memory but not yet
written to disk.  In this case, there's actually nothing to repair,
since nothing exists on disk; make REPAIR idempotent for CSV tables.
This commit is contained in:
Dave Gosselin 2025-06-17 16:08:38 -04:00 • committed by Dave Gosselin
commit 060c0e3ff5
3 changed files with 24 additions and 5 deletions
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7
storage/csv/ha_tina.cc
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@ -1515,10 +1515,10 @@ error:
check_opt The options for repair. We do not use it currently.
DESCRIPTION
If the file is empty, change # of rows in the file and complete recovery.
Otherwise, scan the table looking for bad rows. If none were found,
Scan the table looking for bad rows. If none were found,
we mark file as a good one and return. If a bad row was encountered,
we truncate the datafile up to the last good row.
If the file is empty, then do nothing and complete recovery.
TODO: Make repair more clever - it should try to recover subsequent
rows (after the first bad one) as well.
@ -1536,10 +1536,7 @@ int ha_tina::repair(THD* thd, HA_CHECK_OPT* check_opt)
/* empty file */
if (!share->saved_data_file_length)
{
share->rows_recorded= 0;
goto end;
}
/* Don't assert in field::val() functions */
table->use_all_columns();