[WIP] 813 PARTIAL_UPDATE_ROWS_EVENT (PARTIAL_JSON enabled post-creation)

[ilidemi]

codex is working

[codecov]

❌ 2 Tests Failed:

Tests completed	Failed	Passed	Skipped
2322	2	2320	214

View the top 2 failed test(s) by shortest run time

github.com/PeerDB-io/peerdb/flow/e2e::TestPeerFlowE2ETestSuiteMySQL_CH

Stack Traces | 0.01s run time

=== RUN   TestPeerFlowE2ETestSuiteMySQL_CH
=== PAUSE TestPeerFlowE2ETestSuiteMySQL_CH
=== CONT  TestPeerFlowE2ETestSuiteMySQL_CH
--- FAIL: TestPeerFlowE2ETestSuiteMySQL_CH (0.01s)

github.com/PeerDB-io/peerdb/flow/e2e::TestPeerFlowE2ETestSuiteMySQL_CH/Test_MySQL_PartialJSONUnsupported

Stack Traces | 56s run time

=== RUN   TestPeerFlowE2ETestSuiteMySQL_CH/Test_MySQL_PartialJSONUnsupported
=== PAUSE TestPeerFlowE2ETestSuiteMySQL_CH/Test_MySQL_PartialJSONUnsupported
=== CONT  TestPeerFlowE2ETestSuiteMySQL_CH/Test_MySQL_PartialJSONUnsupported
2026/06/19 18:26:20 INFO Received AWS credentials from peer for connector: ci x-peerdb-additional-metadata={Operation:FLOW_OPERATION_UNKNOWN}
2026/06/19 18:26:20 INFO Received AWS credentials from peer for connector: clickhouse x-peerdb-additional-metadata={Operation:FLOW_OPERATION_UNKNOWN}
2026/06/19 18:26:20 INFO fetched schema x-peerdb-additional-metadata={Operation:FLOW_OPERATION_UNKNOWN} table=e2e_test_mychcl_v2langbm.test_nullable_column
    clickhouse_mysql_test.go:1545: 
        	Error Trace:	.../flow/e2e/clickhouse_mysql_test.go:1545
        	Error:      	Received unexpected error:
        	            	MySQL execute error: readInitialHandshake: io.ReadFull(header) failed. err EOF: connection was bad
        	Test:       	TestPeerFlowE2ETestSuiteMySQL_CH/Test_MySQL_PartialJSONUnsupported
--- FAIL: TestPeerFlowE2ETestSuiteMySQL_CH/Test_MySQL_PartialJSONUnsupported (55.98s)

To view more test analytics, go to the Test Analytics Dashboard
_{📋 Got 3 mins? Take this short survey to help us improve Test Analytics.}

[github-actions]

🔄 Flaky Test Detected

Analysis: The MySQL_CH e2e test failed on a transient "readInitialHandshake: io.ReadFull(header) failed. err EOF: connection was bad" — a network/connection blip to the MySQL test server unrelated to the test's logic, indicating a flaky failure rather than a real bug.
Confidence: 0.9

✅ Automatically retrying the workflow

View workflow run