public override void ExplicitVisit(AlterTableDropTableElementStatement node)
{
PgExpressionVisitor expressionVisitor = new PgExpressionVisitor(_buffer);
for (int index = 0, count = node.AlterTableDropTableElements.Count - 1; index <= count; ++index)
{
_buffer.Append("alter table ");
node.SchemaObjectName.Accept(expressionVisitor);
AlterTableDropTableElement element = node.AlterTableDropTableElements[index];
_buffer.Append(" drop ");
if (element.IsIfExists)
{
_buffer.Append("if exists ");
}
switch (element.TableElementType)
{
case TableElementType.Constraint:
_buffer.Append("constraint ");
element.Name.Accept(expressionVisitor);
_buffer.AppendLine(";");
break;
default:
throw new InvalidOperationException("unsupported table element name");
}
}
}
public override void ExplicitVisit(IfStatement node)
{
if (_state != PgTranslatorState.Postdeplyment && _state != PgTranslatorState.Deployment)
{
return;
}
_buffer.Append("if ");
PgExpressionVisitor visitor = new PgExpressionVisitor(_buffer);
node.Predicate.Accept(visitor);
_buffer.Append(" then");
_buffer.AppendLine();
node.ThenStatement.Accept(visitor);
if (node.ElseStatement != null)
{
_buffer.AppendLine("else");
node.ElseStatement.Accept(visitor);
}
_buffer.AppendLine("end if;");
}
public override void ExplicitVisit(CreateSchemaStatement node)
{
_buffer.Append("create schema ");
PgExpressionVisitor visitor = new PgExpressionVisitor(_buffer);
node.Name.Accept(visitor);
_buffer.Append(";");
_buffer.AppendLine();
}
public override void ExplicitVisit(DropSchemaStatement node)
{
_buffer.Append("drop schema ");
PgExpressionVisitor visitor = new PgExpressionVisitor(_buffer);
if (node.IsIfExists)
{
_buffer.Append("if exists ");
}
node.Schema.Accept(visitor);
_buffer.AppendLine(";");
}
public override void ExplicitVisit(DropTableStatement node)
{
PgExpressionVisitor expressionVisitor = new PgExpressionVisitor(_buffer);
for (int index = 0, count = node.Objects.Count - 1; index <= count; ++index)
{
_buffer.Append("drop table");
if (node.IsIfExists)
{
_buffer.Append(" if exists");
}
_buffer.Append(" ");
node.Objects[index].Accept(expressionVisitor);
_buffer.AppendLine(";");
}
}
public override void ExplicitVisit(ExecuteSpecification node)
{
if (node.ExecuteContext != null)
{
throw new NotSupportedException();
}
if (node.LinkedServer != null)
{
throw new NotSupportedException();
}
if (node.Variable != null)
{
throw new NotSupportedException();
}
if (node.ExecutableEntity is ExecutableProcedureReference procedureReference)
{
PgExpressionVisitor expressionVisitor = new PgExpressionVisitor(_buffer);
procedureReference.ProcedureReference.Accept(expressionVisitor);
_buffer.Append("(");
for (int index = 0, count = procedureReference.Parameters.Count - 1; index <= count; ++index)
{
ExecuteParameter parameter = procedureReference.Parameters[index];
parameter.Accept(expressionVisitor);
if (index < count)
{
_buffer.Append(", ");
}
}
_buffer.Append(")");
}
else
{
throw new NotSupportedException();
}
}
