Abstract: Computer implemented methods, systems, and computer program products include program code executing on a processor(s) that obtains a user query. The program code selects just in time (JIT) statistics relevant for use by a cost optimizer to generate a plan file for executing the user query by determining, based on JIT metadata in a JIT statistics cache, if JIT statistics generated responsive to an earlier event are these JIT statistics, and based on determining that the JIT statistics generated responsive to the earlier event are these JIT statistics, selects these JIT statistics to generate the plan file. The program code utilizes the cost optimizer to generate the plan file based on these JIT statistics. The program code executes the user query in the target database based on the plan file.

Abstract: Computer implemented methods, systems, and computer program products include program code executing on a processor(s) that obtains a user query. The program code selects just in time (JIT) statistics relevant for use by a cost optimizer to generate a plan file for executing the user query by determining, based on JIT metadata in a JIT statistics cache, if JIT statistics generated responsive to an earlier event are these JIT statistics, and based on determining that the JIT statistics generated responsive to the earlier event are these JIT statistics, selects these JIT statistics to generate the plan file. The program code utilizes the cost optimizer to generate the plan file based on these JIT statistics. The program code executes the user query in the target database based on the plan file.

Abstract: An embodiment senses an object from an object screening system, and responsive to the sensed object, generates a context information based on the sensed object. The embodiment generates a cultural classification by a Culturally Aware Objects Model based in part on the context information wherein the Culturally Aware Objects Model is trained on a cultural factor of an object. The embodiment generates a moderated context information by a Sensitive Information Moderation Model based in part on the cultural classification and the context information wherein the Sensitive Information Moderation Model is trained on a privacy parameter. The embodiment also computes a recommendation by a Recommendation Component based in part on the moderated context information wherein the object screening system is updated with the recommendation.