Fix TopN row size estimate #119476
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Fix TopN row size estimate #119476
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Hi @dnhatn, I've created a changelog YAML for you. |
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Pinging @elastic/es-analytical-engine (Team:Analytics) |
nik9000
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Jan 3, 2025
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Oh boy! I remember estimating row sizes! Thanks for fixing this! |
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Thanks Nik! |
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💚 Backport successful
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dnhatn
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Currently, we only account for attributes after the TopN operation when estimating its row size. This results in invalid estimates for the final TopN on the coordinator and the node-level reduction TopN. This change corrects the estimates and removes the workaround, paving the way for enabling node-level reduction in ES|QL. Closes elastic#106956
elasticsearchmachine
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Currently, we only account for attributes after the TopN operation when estimating its row size. This results in invalid estimates for the final TopN on the coordinator and the node-level reduction TopN. This change corrects the estimates and removes the workaround, paving the way for enabling node-level reduction in ES|QL. Closes #106956
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Currently, we only account for attributes after the TopN operation when estimating its row size. This results in invalid estimates for the final TopN on the coordinator and the node-level reduction TopN. This change corrects the estimates and removes the workaround, paving the way for enabling node-level reduction in ES|QL.
Closes #106956