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New page: concepts/deep-dive/posting-index.md - When to use, creating with INDEX TYPE POSTING and INCLUDE - Covering index: how it works, supported types, choosing columns - Verifying with EXPLAIN, comparison with bitmap index - All accelerated query patterns with examples - SQL optimizer hints (no_covering, no_index) - Trade-offs: storage, write performance, memory - Architecture: file types, generations, sealing, FSST compression - Limitations Updated pages: - indexes.md: added index type comparison table - create-table.md: added posting index and INCLUDE syntax - alter-table-alter-column-add-index.md: added posting + INCLUDE examples - sql-optimizer-hints.md: added no_covering and no_index hints - schema-design-essentials.md: added indexing decision guide - sidebars.js: added posting-index to Deep Dive navigation
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🚀 Build success! Latest successful preview: https://preview-404--questdb-documentation.netlify.app/docs/ Commit SHA: e187aac
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- All column types now supported in INCLUDE (UUID, LONG256, BINARY, DECIMAL128/256, arrays were added since initial docs) - Document encoding options: POSTING DELTA and POSTING EF syntax - Document designated timestamp auto-inclusion in covering index - Add out-of-line INDEX(col TYPE POSTING) syntax examples - Add SHOW COLUMNS indexType and indexInclude columns to show.md, meta.md (table_columns), and posting-index.md - Add SHOW CREATE TABLE example with posting index - Note CAPACITY restriction (bitmap only) across all relevant pages - Note INCLUDE restrictions (inline syntax only, cannot include indexed column itself) - Update storage/compression details per column type category Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- explain.md: add CoveringIndex and PostingIndex plan node descriptions - symbol.md: add posting index example alongside bitmap in indexing section - alter-mat-view-alter-column-add-index.md: add TYPE POSTING syntax (INCLUDE not supported on materialized views) - _cairo.config.json: add cairo.posting.index.auto.include.timestamp and cairo.posting.index.row.id.encoding config keys; clarify bitmap-only scope of cairo.index.value.block.size and cairo.spin.lock.timeout Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Delta encoding compresses best for regular, evenly-distributed data and is faster for large scans. The adaptive (default) mode additionally trial-encodes a flat layout that compresses better for irregular distributions and is faster for point queries. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- POSTING DELTA: regular data, better compression for even distributions, faster for large sequential scans - POSTING EF: Elias-Fano encoding, better compression for irregular distributions, faster for point queries - POSTING (default): adaptive, trial-encodes both per stride, picks smaller Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
posting-index.md)Updates since initial generation
POSTING DELTAandPOSTING EFsyntax variantsINCLUDEis presentINDEX(col TYPE POSTING)alongside inline syntaxindexTypeandindexIncludecolumns to show.md andtable_columns()in meta.mdTest plan
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