Migration: correct join_algorithm default in JOINs best practices#281
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Summary
Port upstream ClickHouse/clickhouse-docs#6450: correct the stated default for
join_algorithmon the "Minimize and optimize JOINs" page.Changes
concepts/best-practices/minimize-optimize-joins.mdx: replace the claim that'auto'is the default with the actual default (direct,parallel_hash,hash) and a one-sentence explanation of what it means.Context
The previous text said
join_algorithm = 'auto'was the default, but the real source default isdirect,parallel_hash,hash(seesrc/Core/Settings.cpp). Translated copies underar/,es/,fr/,ja/, etc. were intentionally left unchanged per the "ignore i18n translation directories" instruction.