I have a simple AEM query
path=/content/bla/blabla/blablabla
type=cq:Page
p.limit=-1
orderby=path
This query executes fine using the /libs/cq/search/content/querydebug.html servlet, however when the same query is built and executed using QueryBuilder API (ResourceResolver adaptation to Session omitted for clarity, QueryBuilder injected using dependency injection #Reference as 'queryBuilder')
final Map<String,String> queryMap = new HashMap<>();
queryMap.put("path","/content/bla/blabla/blablabla");
queryMap.put("type",NameConstants.NT_PAGE);
queryMap.put("p.limit","-1");
queryMap.put("orderby","path");
Query query = queryBuilder.createQuery(PredicateGroup.create(queryMap),resourceResolver.adaptTo(Session.class));
SearchResult result = query.getResult();
I can see the following in the AEM logs (which is not visible when running the query via the OOTB servlet).
org.apache.jackrabbit.oak.plugins.index.lucene.LucenePropertyIndex This index is deprecated: /oak:index/lucene; it is used for query Filter(query=select [jcr:path], [jcr:score], * from [nt:base] as a where contains(*, '"/content/bla/blabla/blablabla"') /* xpath: //*[jcr:contains(., '"/content/bla/blabla/blablabla"')] */ fullText="/content/bla/blabla/blablabla", path=*). Please change the query or the index definitions.
What I'm trying to understand is what is different between the two cases.
By debugging the code and continuously checking the logs I noticed this query does not cause any problems, it's caused by a different code snippet related to AEM ReferenceSearch
Related
I am trying to run a query from the results of another using with in the objection orm
ex:
Model.query().with(alias, query).select(columns).from(alias);
according to the Knex documentation which is linked from the objection docs, this should work fine. However, when I run the code, objection prepends the schema name to the alias and I get an error stating that relation schema.alias does not exist. I tried using raw but this did not help either.
ex:
Model.query().with(alias, query).select(columns).from(raw(alias));
is there a way for me to select the table/alias defined in the with method without objection prepending the schema to it?
The query method of the model I was using was overridden with code that specified the schema
ex:
class MyModel extends BaseModel {
static query() {
return super.query().withSchema(schema);
}
}
To get around this issue I used the query method of the parent class directly rather than the overridden query method of the model I was using.
This solves my current problem, but does not answer the question of whether one could omit the prepended schema name in the from method.
Cassandra has org.apache.cassandra.cql3.QueryHandler interface which provide apis to handle external queries from client.
Below api which handles prepared statment:
public ResultMessage processPrepared(CQLStatement statement, QueryState state, QueryOptions options) throws RequestExecutionException, RequestValidationException;
I want to log queryString and value passed to it, in case CQLStatement,QueryState and QueryOptions is given . How can i get it?
I Believe a person who has worked on cassandra code can help me out in this.
This would be very difficult in 2.1. With newer versions where for logging they needed this they just recreate it as well as possible. You can see how in the ReadCommand implementations, theres a name() or toCQLString() used in things like slow query logging. You could backport this and the 2 implementations of appendCQLWhereClause for ability to do similar and then build one for modification statement.
in getPrepared() you can get the rawCQLStatement from the ParsedStatement.Prepared and stash it in the thread local.
You may want to alternatively consider using a custom implementation of tracing (example) or using triggers and building a mutation logger.
Do the following:
create a class that would implement the QueryHandler interface and make Cassandra aware of it
in that class you can maintain a list of the queries (add to this list when prepare method is being called) and the current query that you will get from the list when getPrepared it's called; you can get it from the list using the MD5Digest id
when processPrepared is called you can replace the ? in the query string with the values in the QueryOptions options.getValues().
HTH
Currently when using OrmLite library from ServiceStack if I want single entity selected I do:
AppUser user = db.First<AppUser>(q => q.Id == id);
However since Single is more precise (obviously I want exception thrown if somehow multiple users with same id ended up in database) I was wondering if there is overload that I can use. Currently when I do db.Single I just get that overload with manual filtering:
public static T SingleOrDefault<T>(this IDbConnection dbConn, string filter);
OK, I found what the issue is - the version I'm using (3.9.71) doesn't have that overload - it was added later:
https://github.com/ServiceStack/ServiceStack.OrmLite/commit/f2f5f80f150f27266bdcaf81b77ca60b62897719#diff-e9a84724e6a8315ec7f7fc5a5512a44b
Seems I'll need to extend that class from within my code.
I need to query a table using FreeTextTable (because I need ranking), with SubSonic. AFAIK, Subsonic doesn't support FullText, so I ended up creating a simple UDF function (Table Function) which takes 2 params (keywords to search and max number of results).
Now, how can I inner join the main table with this FreeTextTable?
InlineQuery is not an option.
Example:
table ARTICLE with fields Id, ArticleName, Author, ArticleStatus.
The search can be done by one of more of the following fields: ArticleName (fulltext), Author (another FullText but with different search keywords), ArticleStatus (an int).
Actually the query is far more complex and has other joins (depending on user choice).
If SubSonic cannot handle this situation, probably the best solution is good old plain sql (so there would be no need to create an UDF, too).
Thanks for your help
ps: will SubSonic 3.0 handle this situation?
3.0 can do this for you but you'd need to make a template for it since we don't handle functions (yet) out of the box. I'll be working on this in the coming weeks - for now I don't think 2.2 will do this for you.
I realize your question is more complex than this, but you can get results from a table valued function via SubSonic 2.2 with a little massaging.
Copy the .cs file from one of your generated views into a safe folder, and then change all the properties to match the columns returned by your UDF.
Then, on your collection, add a constructor method with your parameters and have it execute an InlineQuery.
public partial class UDFSearchCollection
{
public UDFSearchCollection(){}
public UDFSearchCollection(string keyword, int maxResults)
{
UDFSearchCollection coll = new InlineQuery().ExecuteAsCollection<UDFSearchCollection>("select resultID, resultColumn from dbo.udfSearch(#keyword, #maxResults)",keyword,maxResults);
coll.CopyTo(this);
coll = null;
}
}
public partial class UDFSearch : ReadOnlyRecord<UDFSearch>, IReadOnlyRecord
{
//all the methods for read only record go here
...
}
An inner join would be a little more difficult because the table object doesn't have it's own parameters collection. But it could...
It could very well be that I'm just missing the correct vernacular in this space, but I'm looking for a particular piece of functionality in SubSonic. In NetTiers it was called a "DeepLoad". A deep load runs to the database and fetches many objects (ie. fetch this OrderDetail and all of it's LineItems) in one database call.
Again, I want to run to the data store once an build up a potentially dense object graph or related items populated by the data store.
How do I do this in SubSonic and what is it called in SubSonic?
You can do this in SubSonic 3.0 (not yet released, but almost there...) using IQueryable with lazy loading:
var db=new NorthwindDB();
var order=db.Orders.Where(x=>.xID==20).SingleOrDefault();
Assert.Equal(3,order.OrderDetails.Count());
if you're not on 3 (which requires .net 3.5) you can do this with Active record as Paul mentions - but it will make two calls.
There is no eager loading, and DeepSave in ActiveRecord only calls Save.
Here is an example with Northwind Order class foreign key method.
[Test]
public void SelectOrderDetails()
{
Order order = new Order(10250);
OrderDetailCollection details = order.OrderDetails();
Assert.IsTrue(details.Count == 3);
}