docs(postgresql): improve overview extensions section and expand FAQs#245
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docs(postgresql): improve overview extensions section and expand FAQs#245
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Overview: - Replace misleading "Supported Extensions" table (pgvector only) with a comprehensive "Pre-installed Extensions" section covering 11 extensions across PG12–PG18, verified by live cluster tests - Add per-version extension version matrix (PG12.22.0 through PG18.1.0) with "Enabled by default" column distinguishing auto-loaded vs CREATE EXTENSION required - Add categorized descriptions with SQL examples for all 11 extensions: pgvector, PostGIS, TimescaleDB, pg_duckdb, roaringbitmap, pg_trgm, pg_stat_statements, pgaudit, pg_cron, pg_partman, pglogical - Note version availability differences: pg_duckdb not on PG12, roaringbitmap PG18 only, pg_duckdb 0.3.0 on PG14–PG17 vs 1.1.0 on PG18 FAQs: - Update frontmatter description and keywords - Add FAQ #4: how to check replication lag (pg_last_xact_replay_timestamp and pg_stat_replication - Add FAQ #5: how to connect to a read replica directly via headless service DNS - Add FAQ #6: automatic failover trigger conditions and sequence - Add FAQ #7: how to adjust pgbouncer connection pool settings via Reconfiguring OpsRequest EOF )
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Closes #244
Changes
Overview — Pre-installed Extensions
Replaced the misleading single-row "Supported Extensions" table with a full "Pre-installed Extensions" section:
pg_duckdbabsent on PG12;roaringbitmapPG18 only;pg_duckdb0.3.0 on PG14–PG17 vs 1.1.0 on PG18FAQs — 4 new entries
Test plan