HHH-18267 Informix insert value to identity column error

Author: VladoKuruc

hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/InformixDialect.java

@@ -714,4 +714,8 @@ public String getSelectClauseNullString(int sqlType, TypeConfiguration typeConfi
 		return "null::" + typeName;
 	}
 
+	@Override
+	public String getNoColumnsInsertString() {
+		return "values (0)";
+	}
 }

hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/InformixSqlAstTranslator.java

@@ -23,6 +23,7 @@
 import org.hibernate.sql.ast.tree.select.QuerySpec;
 import org.hibernate.sql.ast.tree.select.SelectClause;
 import org.hibernate.sql.exec.spi.JdbcOperation;
+import org.hibernate.sql.model.internal.TableInsertStandard;
 
 /**
  * A SQL AST translator for Informix.
@@ -174,6 +175,12 @@ protected void renderNull(Literal literal) {
 		}
 	}
 
+	@Override
+	protected void renderInsertIntoNoColumns(TableInsertStandard tableInsert) {
+		renderIntoIntoAndTable( tableInsert );
+		appendSql( "values (0)" );
+	}
+
 	private boolean supportsParameterOffsetFetchExpression() {
 		return getDialect().getVersion().isSameOrAfter( 11 );
 	}