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Prevent error when unlocking the changelog in MySQL affects zero rows and useAffectedRows is true. Fixes #5502 #5777

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merged 4 commits into from
Apr 15, 2024
Merged

Prevent error when unlocking the changelog in MySQL affects zero rows and useAffectedRows is true. Fixes #5502 #5777

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6e880da
Prevent error when unlocking the changelog in MySQL affects zero rows…
mpvvliet Apr 7, 2024
733de15
Move getUseAffectedRows() to MySQLDatabase
mpvvliet Apr 8, 2024
348f3ec
Merge branch 'master' into fix-5502
rberezen Apr 10, 2024
f85b668
Merge branch 'master' into fix-5502
rberezen Apr 11, 2024
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5 changes: 5 additions & 0 deletions liquibase-standard/src/main/java/liquibase/database/core/MySQLDatabase.java
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Original file line number Diff line number Diff line change
Expand Up @@ -692,4 +692,9 @@ public boolean supportsCreateIfNotExists(Class<? extends DatabaseObject> type) {
public boolean supportsDatabaseChangeLogHistory() {
return true;
}

public boolean getUseAffectedRows() throws DatabaseException {
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return getConnection().getURL().contains("useAffectedRows=true");
}

}
11 changes: 11 additions & 0 deletions liquibase-standard/src/main/java/liquibase/lockservice/StandardLockService.java
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Expand Up @@ -10,6 +10,7 @@
import liquibase.database.core.DB2Database;
import liquibase.database.core.DerbyDatabase;
import liquibase.database.core.MSSQLDatabase;
import liquibase.database.core.MySQLDatabase;
import liquibase.diff.output.DiffOutputControl;
import liquibase.diff.output.changelog.ChangeGeneratorFactory;
import liquibase.exception.DatabaseException;
Expand Down Expand Up @@ -370,6 +371,16 @@ public void releaseLock() throws LockException {
database.rollback();
SqlStatement unlockStatement = new UnlockDatabaseChangeLogStatement();
int updatedRows = ChangelogJdbcMdcListener.query(database, ex -> ex.update(unlockStatement));
if ((updatedRows == 0) && (database instanceof MySQLDatabase)) {
Scope.getCurrentScope().getLog(getClass()).fine(
"Database did not return a proper row count (Might have useAffectedRows enabled.)"
);
// NOTE: if using useAffectedRows, MySQL will return 0 rows affected if the changelog lock was not set or already released
if (((MySQLDatabase) database).getUseAffectedRows()) {
// Assume the lock was released successfully
updatedRows = 1;
}
}
if ((updatedRows == -1) && (database instanceof MSSQLDatabase)) {
Scope.getCurrentScope().getLog(getClass()).fine(
"Database did not return a proper row count (Might have NOCOUNT enabled.)"
Expand Down
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