[core] compatibility for sql.query tags

dd-trace/src/main/java/com/datadoghq/trace/DDTags.java

@@ -6,4 +6,5 @@ public class DDTags {
   public static final String RESOURCE_NAME = "resource-name";
   public static final String THREAD_NAME = "thread-name";
   public static final String THREAD_ID = "thread-id";
+  public static final String DB_STATEMENT = "sql.query";
 }

dd-trace/src/main/java/com/datadoghq/trace/integration/DBStatementAsResourceName.java

@@ -1,5 +1,6 @@
 package com.datadoghq.trace.integration;
 
+import com.datadoghq.trace.DDSpanContext;
 import com.datadoghq.trace.DDTags;
 import io.opentracing.tag.Tags;
 
@@ -10,4 +11,17 @@ public class DBStatementAsResourceName extends AbstractDecorator {
     this.setMatchingTag(Tags.DB_STATEMENT.getKey());
     this.setSetTag(DDTags.RESOURCE_NAME);
   }
+
+
+  @Override
+  public boolean afterSetTag(final DDSpanContext context, final String tag, final Object value) {
+    //Assign service name
+    if (super.afterSetTag(context, tag, value)) {
+      // Replace the OT db.statement by the DD sql.query
+      context.setTag(DDTags.DB_STATEMENT, value);
+      context.getTags().remove(Tags.DB_STATEMENT.getKey());
+      return true;
+    }
+    return false;
+  }
 }

dd-trace/src/main/java/com/datadoghq/trace/integration/DBTypeDecorator.java

@@ -21,7 +21,7 @@ public class DBTypeDecorator extends AbstractDecorator {
     //Assign service name
     if (super.afterSetTag(context, tag, value)) {
       //Assign span type to DB
-      context.setSpanType("db");
+      context.setSpanType("sql");
       // Works for: mongo, cassandra, jdbc
       context.setOperationName(String.valueOf(value) + ".query");
       return true;

dd-trace/src/main/resources/dd-trace-decorators.yaml

@@ -9,4 +9,5 @@ decorators:
     setValue: aws-client
   - type: ErrorFlag
   - type: DBTypeDecorator
+  - type: DBStatementAsResourceName
   - type: OperationDecorator