* Use autocommit false with findIterate for Postgres
* Use autocommit false with findIterate for Postgres
* Use autocommit false with FindDto queries for Postgres
* Use autocommit false with SqlQuery findIterate queries for Postgres
* Ensure that TransactionFactory.createReadOnlyTransaction() returns an ImplicitReadOnlyTransaction
This change changes TransactionFactoryTenant.createReadOnlyTransaction() to return a ImplicitReadOnlyTransaction, as that is now used to support Postgres use of cursors with findIterate style queries.
* #3552 Column alias required for SQL Server + findCount + distinct
- Modifies CQueryBuilder with the main fix which is to use the database platform selectCountWithColumnAlias for all distinct queries [and later disable it for single column case]
- Modifies SqlTreeBuilder because we need to NOT use the column alias for the count distinct SINGLE COLUMN case. So change here to:
- build the root SqlTreeNode first as part of constructor
- use rootNode.isSingleProperty() to NOT use column alias for the single column case
- Hence need to initialise DefaultDbSqlContext AFTER the root SqlTreeNode
- Modifies DefaultDbSqlContext with no effective change, just columnIndex++ ONLY when we are actually using column alias
- Modifies H2Platform to also use selectCountWithColumnAlias true
* #3552 selectCountWithColumnAlias true for MariaDB and MySql
Plus fix TestRowCount for Oracle platform
Rob Bygrave