static MySQLProcessors()
{
var processors = SQLProcessorAggregator.GetDefaultProcessorsCopy();
// MySQL doesn't understand schemas
processors[typeof(TableNameDirectImpl)] = new MySQLTableNameDirectProcessor();
processors[typeof(TableNameFunctionImpl)] = new MySQLTableNameFunctionProcessor();
processors[typeof(SchemaDefinitionImpl)] = new MySQLSchemaDefinitionProcessor();
processors[typeof(DropSchemaStatementImpl)] = new NoOpProcessor();
// MySQL has custom way of handling auto generation syntax of columns
processors[typeof(ColumnDefinitionImpl)] = new MySQLColumnDefinitionProcessor();
// MySQL has different syntax for OFFSET/FETCH
processors[typeof(QuerySpecificationImpl)] = new MySQLQuerySpecificationProcessor();
DEFAULT_PROCESSORS = processors;
}
static PgSQLProcessors()
{
var processors = SQLProcessorAggregator.GetDefaultProcessorsCopy();
// Override default processor for date-time
processors[typeof(TimestampLiteralImpl)] = new PgSQLTimestampLiteralProcessor();
// Override default processor for column definition
processors[typeof(ColumnDefinitionImpl)] = new PgSQLColumnDefinitionProcessor();
// Override default processor for regexp predicates
processors[typeof(RegexpPredicateImpl)] = new BinaryPredicateProcessor("~", "!~");
// Override default processor for query specification
processors[typeof(QuerySpecificationImpl)] = new PgSQLQuerySpecificationProcessor();
// Override default processor for table definition by adding support for table commit action
var tableCommitActions = TableDefinitionProcessor.NewCopyOfDefaultCommitActions();
tableCommitActions.Add((TableCommitAction)PgSQLTableCommitAction.Drop, "DROP");
processors[typeof(TableDefinitionImpl)] = new TableDefinitionProcessor(null, tableCommitActions);
// Add support for TEXT datatype
processors.Add(typeof(SQLDTTextImpl), new ConstantProcessor("TEXT"));
// Add IF EXISTS functionality to DROP TABLE/VIEW statements
processors.Remove(typeof(DropTableOrViewStatementImpl));
processors.Add(typeof(PgSQLDropTableOrViewStatementImpl), new PgSQLDropTableOrViewStatementProcessor());
// Add support for PgSQL-specific INSERT statement RETURNING clause
processors.Remove(typeof(InsertStatementImpl));
processors.Add(typeof(PgSQLInsertStatementImpl), new PgSQLInsertStatementProcessor());
// Add support for column name list to appear as non-boolean expression (e.g. within where-clause)
processors.Add(typeof(ColumnNameListExpressionImpl), new ColumnNamesProcessor());
// Add support for VALUES clause to be value expression (e.g. within where-clause)
processors.Add(typeof(ValuesExpressionImpl), new ValuesExpressionProcessor());
DEFAULT_PROCESSORS = processors;
}
