For MySQL, add a UNIQUE constraint for non-PK generated columns.

buggins · Dec 15, 2024 · 4b2cd40 · 4b2cd40
1 parent 0a39615
commit 4b2cd40
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/source/hibernated/dialects/mysqldialect.d b/source/hibernated/dialects/mysqldialect.d
@@ -115,7 +115,12 @@ class MySQLDialect : Dialect {
         bool fk = pi is null;
         string nullablility = !fk && pi.nullable ? " NULL" : " NOT NULL";
         string pk = !fk && pi.key ? " PRIMARY KEY" : "";
-        string autoinc = !fk && pi.generated ? " AUTO_INCREMENT" : "";
+        // MySQL only supports AUTO_INCREMENT for the primary key.
+        string autoinc = (!fk && pi.generated)
+                ? (pi.key
+                     ? " AUTO_INCREMENT"
+                     : " UNIQUE AUTO_INCREMENT")
+                : "";
         string def = "";
         int len = 0;
         string unsigned = "";
@@ -233,4 +238,4 @@ unittest {
 	assert(dialect.quoteSqlString("a\nc") == "'a\\nc'");
 	assert(dialect.quoteIfNeeded("blabla") == "blabla");
 	assert(dialect.quoteIfNeeded("true") == "`true`");
-}
+}