Elastic search Push Down Optimization for FilterNode

[josephjacobmorris]

What type of PR is this?

Elastic search Push Down Optimization for FilterNode

/kind feature

What does this PR do / why do we need it:

Improves performance of elastic search queries run from openlookeng by implementing push down approach

[it-is-a-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: josephb160515cs To complete the pull request process, please assign fbird2020 You can assign the PR to them by writing /assign @fbird2020 in a comment when ready.

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[it-is-a-robot]

Welcome @josephb160515cs!

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[josephjacobmorris]

/assign @fbird2020

[josephjacobmorris]

/assign @fbird2020