Saturday, February 28, 2015

Filtering .raw fields with Python Elasticsearch DSL High-Level Client

It took me a while to figure out how to search the not_analyzed ".raw" fields created by Logstash in Elasticsearch indices, using the high-level Python Elasticsearch client. Because keyword arguments can't have attributes, Python throws an error if you try it the intuitive way (this assumes you've already set up a client as es and an index as i, as shown in the docs):

Instead, you create a dictionary with your parameters and unpack it using the ** operator:

This produces the Elasticsearch query we want:


James Harr said...

You can also inline that.


It's less than convenient, but it works.

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Greetings Mate,

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Write a program to print Lowest Common Ancestor of given the values of two nodes in a binary search tree. You may assume that both values already exist in the tree.
The program should take the inputs for the binary tree and construct the tree. Once the construction is over, the program takes 2 inputs to find out the LCA of those nodes.
Eg: In the below given tree, the lowest common ancestor of 4 and 14 is 8.

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Kind Regards,

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