Add EXPLAIN plan visualization with diagram, tree, and raw views#641

Merged

datlechin merged 11 commits intomainfrom

feat/explain-visualization

Apr 8, 2026

Commits on Apr 8, 2026

feat: add EXPLAIN plan visualization with diagram, tree, and raw views
datlechin
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feat: add indented text plan parser for ClickHouse and DuckDB EXPLAIN
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docs: add EXPLAIN visualization page
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docs: add screenshot placeholders for EXPLAIN visualization
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fix: replace retroactive UUID conformance with wrapper, add diagram accessibility, use O(1) string length
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fix: handle MariaDB nested EXPLAIN JSON structure (filesort, temporary_table)
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fix: attach popover to each diagram node for correct positioning
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feat: add EXPLAIN QUERY PLAN support to SQLite plugin
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fix: SQLite EXPLAIN tree parsing — use min parent ID as root
datlechin
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docs: update EXPLAIN visualization page — add all databases, dark/light images, fix table
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wip
datlechin
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