wcst_import error with creating new coverage that has been dropped before

[Bang Pham Huu]

The problem is when I use wcst_import to import some data to rasdaman with coverage id like a, b, c then I drop petascopedb, then I import it again and an error appear. I think this is not consistent in here (it is best that wcst-import not only check in petascopedb but check collection from rasdaman also). Only if both case is not exist then wcst-import can import data or will have error that coverage is exist.

  INFO [14:26:25] RasdamanDefaultCollectionCreator@52: Creating rasdaman collection rgbx3.
 TRACE [14:26:25] RasUtil@149: Executing query CREATE COLLECTION rgbx3 RGBSet
rasj[0] RasRNPImplementation.getResponse: query failed, errNo=955, lineNo=1, colNo=1, token=CREATE
 ERROR [14:26:25] PetascopeInterface@493: Error stack trace:
RasdamanRequestFailed: Error evaluating rasdaman query: 'CREATE COLLECTION rgbx3 RGBSet
	at petascope.PetascopeInterface.handleWcs2Request(PetascopeInterface.java:690)
	at petascope.PetascopeInterface.handleWcsRequest(PetascopeInterface.java:576)
	at petascope.PetascopeInterface.doGet(PetascopeInterface.java:356)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:652)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:445)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:556)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1044)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:372)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:978)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
	at org.eclipse.jetty.server.Server.handle(Server.java:367)
	at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:486)
	at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:640)
	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
	at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
	at java.lang.Thread.run(Thread.java:745)
 DEBUG [14:26:25] PetascopeInterface@545: Done marshalling Error Report.