protected void doOperation(PostgresQueryContext context, PostgresServerSession server) throws IOException {
switch (operation) {
case USE:
{
SetSchemaNode node = (SetSchemaNode)statement;
String schemaName = (node.statementType() == StatementType.SET_SCHEMA_USER ?
server.getProperty("user") : node.getSchemaName());
if (server.getAIS().getSchema(schemaName) != null) {
server.setDefaultSchemaName(schemaName);
}
else {