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cdc::log: Missing "preimage" check in row deletion pre-image

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Fixes #6561

Pre-image generation in row deletion case only checked if we had a pre-image
result set row. But that can be from post-image. Also check actual existance
of the pre-image CK.
Message-Id: <20200608132804.23541-1-calle@scylladb.com>

(cherry picked from commit 5105e9f5e1)
This commit is contained in:
Calle Wilund
2020-06-08 13:28:04 +00:00
committed by Nadav Har'El
parent 7fa3a988e3
commit 07b7df9171
1 changed files with 1 additions and 1 deletions
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2
cdc/log.cc
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@@ -1146,7 +1146,7 @@ public:
if (r.row().deleted_at()) {
touched_parts.set<stats::part_type::ROW_DELETE>();
cdc_op = operation::row_delete;
if (pirow) {
if (pirow && pikey) {
for (const column_definition& column: _schema->regular_columns()) {
assert(pirow->has(column.name_as_text()));
auto& cdef = *_log_schema->get_column_definition(log_data_column_name_bytes(column.name()));