https://synehq.com/blog/ Practical SQL, data engineering, and governed analytics guides from SyneHQ.en https://synehq.com/blog/keep-the-analysis-log/https://synehq.com/blog/keep-the-analysis-log/Why session summaries delete the failed join you need at 5 p.m., what belongs in an append-only analysis log, and a notebook discipline you can start without a research kernel.AITue, 06 Oct 2026 18:30:00 GMT https://synehq.com/blog/laya-kev-and-the-jev-clones-for-analytics-agents/https://synehq.com/blog/laya-kev-and-the-jev-clones-for-analytics-agents/Open Jev-style models are cheap to copy. For analytics routing, the lasting asset is your labelled questions and evals. Here's how to trial a self-hosted clone.AITue, 06 Oct 2026 18:30:00 GMT https://synehq.com/blog/gpt-6-sol-luna-and-claude-opus-5-5-for-analytics-agents/https://synehq.com/blog/gpt-6-sol-luna-and-claude-opus-5-5-for-analytics-agents/Three new models landed in one week. Match lookups, investigations, notebook code, and write-ups to a tier, then run a bake-off on your own cases before switching.AIMon, 05 Oct 2026 18:30:00 GMT https://synehq.com/blog/cheap-tokens-still-need-reviewed-evidence/https://synehq.com/blog/cheap-tokens-still-need-reviewed-evidence/If tokens get too cheap to meter, analytics is still bounded by warehouse scans and human review. Spend the savings on checks, logs, and evidence, not more output.AISun, 04 Oct 2026 18:30:00 GMT https://synehq.com/blog/agents-break-rules-when-the-goal-requires-it/https://synehq.com/blog/agents-break-rules-when-the-goal-requires-it/Aithos LARA tests whether agents obey the law when the goal requires breaking it. Most do not. Enforce analytics rules outside the model, then test the conflict.AISat, 03 Oct 2026 18:30:00 GMT https://synehq.com/blog/where-should-an-analytics-agent-run-python/https://synehq.com/blog/where-should-an-analytics-agent-run-python/Compare warehouse SQL, browser Python, and isolated server runtimes for analytics agents, with practical guidance on data movement, execution limits, and reproducibility.AIFri, 02 Oct 2026 18:30:00 GMT https://synehq.com/blog/governing-analytics-agents-a-practical-guide/https://synehq.com/blog/governing-analytics-agents-a-practical-guide/A working policy for analytics agents: define scope, enforce access, budget the investigation, review consequential actions, and retain evidence.AIThu, 01 Oct 2026 18:30:00 GMT https://synehq.com/blog/from-analytics-agent-pilot-to-weekly-workflow/https://synehq.com/blog/from-analytics-agent-pilot-to-weekly-workflow/Turn a promising analytics-agent demo into repeatable team work with clear ownership, representative evaluations, review gates, and a feedback loop tied to real outcomes.AIWed, 30 Sep 2026 18:30:00 GMT https://synehq.com/blog/a-semantic-layer-an-smb-can-keep/https://synehq.com/blog/a-semantic-layer-an-smb-can-keep/A copyable metric card, forbidden-join list, and a worked net-versus-gross failure. Agents need a contract; you do not need a catalog product to start.DataTue, 29 Sep 2026 18:30:00 GMT https://synehq.com/blog/sql-query-review-checklist/https://synehq.com/blog/sql-query-review-checklist/Review SQL grain, joins, missing values, filters, denominators, and time windows with a practical checklist and a free review template.DatabaseMon, 28 Sep 2026 18:30:00 GMT https://synehq.com/blog/audit-csv-data-with-duckdb/https://synehq.com/blog/audit-csv-data-with-duckdb/A runnable DuckDB tutorial for finding duplicate keys, invalid dates, broken amounts, and missing customer IDs before an export becomes a dashboard.DatabaseSun, 27 Sep 2026 18:30:00 GMT https://synehq.com/blog/monthly-cohort-retention-sql/https://synehq.com/blog/monthly-cohort-retention-sql/Build a reproducible SQL retention table with signup cohorts, distinct active users, fixed denominators, and explicit handling of incomplete months.DatabaseSun, 27 Sep 2026 18:30:00 GMT https://synehq.com/blog/prevent-sql-join-fanout/https://synehq.com/blog/prevent-sql-join-fanout/Reproduce a SQL join fanout bug, fix it by aggregating to one row per order, and verify revenue and refund totals with a runnable DuckDB example.DatabaseSun, 27 Sep 2026 18:30:00 GMT https://synehq.com/blog/agents-do-not-query-like-people/https://synehq.com/blog/agents-do-not-query-like-people/Walk through the twelve queries an agent actually runs, then design read vs write policy, caps, and logs for machine volume—not for one careful analyst.AITue, 22 Sep 2026 18:30:00 GMT https://synehq.com/blog/evaluating-analytics-agents-with-jev/https://synehq.com/blog/evaluating-analytics-agents-with-jev/A practical evaluation design that combines SQL fixtures, execution checks, and Jev judgments, with separate measures for accuracy, repeatability, and useful coverage.AIMon, 21 Sep 2026 18:30:00 GMT https://synehq.com/blog/building-an-analytics-agent-harness-with-jev/https://synehq.com/blog/building-an-analytics-agent-harness-with-jev/Use Jev to classify analytics questions and route model work, while keeping metric definitions, database permissions, and human approval in the harness.AISun, 20 Sep 2026 18:30:00 GMT https://synehq.com/blog/routing-analytics-agents-by-token-cost/https://synehq.com/blog/routing-analytics-agents-by-token-cost/A routing rule you can write down: cheap models for one governed query, frontier for multi-step analysis, never for table dumps. Includes token math and a session log template.AITue, 15 Sep 2026 18:30:00 GMT https://synehq.com/blog/dbt-in-syne-connect-analyze-and-govern/https://synehq.com/blog/dbt-in-syne-connect-analyze-and-govern/A walkthrough of the PostgreSQL preview: dbt Cloud and manifest connections, analysis with Kole, isolated compilation, team-managed runners, and reviewed schema changes.ProductThu, 10 Sep 2026 18:30:00 GMT https://synehq.com/blog/gpt-6-astra-tools-not-the-warehouse/https://synehq.com/blog/gpt-6-astra-tools-not-the-warehouse/A million-token window is not a data platform. Learn the shrink-then-reason loop, a worked revenue-variance example, and a checklist for trusting an LLM number.AITue, 08 Sep 2026 18:30:00 GMT https://synehq.com/blog/from-dashboards-to-decisions-modern-analytics-platform/https://synehq.com/blog/from-dashboards-to-decisions-modern-analytics-platform/How teams can carry a question from dashboard signal through governed investigation to a reviewable operational next step.DatabaseTue, 01 Sep 2026 18:30:00 GMT https://synehq.com/blog/how-to-build-a-postgres-dashboard-in-10-minutes-(2026)/https://synehq.com/blog/how-to-build-a-postgres-dashboard-in-10-minutes-(2026)/A practical path from a read-only Postgres connection to an inspected query, a useful chart, and a dashboard your team can review and share.DatabaseMon, 06 Apr 2026 18:30:00 GMT https://synehq.com/blog/the-rise-of-reasoning-agents-in-business-analytics/https://synehq.com/blog/the-rise-of-reasoning-agents-in-business-analytics/A practical guide to analytics agents that plan work, call governed tools, record assumptions, and route consequential recommendations for review.AIWed, 12 Nov 2025 18:30:00 GMT https://synehq.com/blog/how-to-use-ai-to-query-databases-without-writing-sql/https://synehq.com/blog/how-to-use-ai-to-query-databases-without-writing-sql/How natural-language database queries move from a question to schema-aware SQL, where they fail, and how teams can validate and govern the results.AITue, 11 Nov 2025 18:30:00 GMT https://synehq.com/blog/unlock-secure-credential-free-sql-analytics-in-jupyter-with-the-synehq-sql-extension/https://synehq.com/blog/unlock-secure-credential-free-sql-analytics-in-jupyter-with-the-synehq-sql-extension/A practical guide to using the SyneHQ Jupyter SQL extension, including its connection model, query outputs, access boundaries, and operating caveats.DatabaseSun, 05 Oct 2025 18:30:00 GMT https://synehq.com/blog/streamlining-multi-language-authentication-workflows-with-nginx-auth-proxy/https://synehq.com/blog/streamlining-multi-language-authentication-workflows-with-nginx-auth-proxy/How this OpenResty and NGINX auth proxy validates Auth.js JWE session cookies, fails closed, and sets boundaries for mixed-language services.InfrastructureThu, 31 Jul 2025 18:30:00 GMT https://synehq.com/blog/facing-the-token-tide-how-increasing-input-tokens-impacts-llm-performance/https://synehq.com/blog/facing-the-token-tide-how-increasing-input-tokens-impacts-llm-performance/How to evaluate long-context LLM behavior with position-aware retrieval tests, realistic distractors, model-specific measurements, and operational safeguards.AIThu, 24 Jul 2025 18:30:00 GMT https://synehq.com/blog/tracking-schema-changes-in-production-with-postgresql-event-triggers/https://synehq.com/blog/tracking-schema-changes-in-production-with-postgresql-event-triggers/A practical PostgreSQL event-trigger audit pattern for recording DDL context, limiting access, testing behavior, and planning retention.DatabaseThu, 24 Jul 2025 18:30:00 GMT https://synehq.com/blog/what-is-a-data-lake-definition-architecture-and-use-cases/https://synehq.com/blog/what-is-a-data-lake-definition-architecture-and-use-cases/A practical explanation of data lakes, their storage and governance layers, common failure modes, and when a warehouse or federation is a better fit.DataThu, 24 Jul 2025 18:30:00 GMT https://synehq.com/blog/migrating-from-mongodb-to-elasticsearch-with-monstache-achieving-real-time-low-latency-search/https://synehq.com/blog/migrating-from-mongodb-to-elasticsearch-with-monstache-achieving-real-time-low-latency-search/A build note on using Monstache to maintain an Elasticsearch search projection from MongoDB, including sync, recovery, and rollback work.InfrastructureSun, 06 Jul 2025 18:30:00 GMT https://synehq.com/blog/how-we-built-rabbit-a-production-ready-private-tcp-tunnel-for-devs-who-need-control/https://synehq.com/blog/how-we-built-rabbit-a-production-ready-private-tcp-tunnel-for-devs-who-need-control/A build note on Rabbit's token-to-port TCP tunnel model, connection flow, persistence, operations, and the security boundaries operators own.InfrastructureThu, 03 Jul 2025 18:30:00 GMT https://synehq.com/blog/the-complete-guide-to-text-search-postgresql-duckdb-and-beyond/https://synehq.com/blog/the-complete-guide-to-text-search-postgresql-duckdb-and-beyond/A practical comparison of PostgreSQL, pg_search, DuckDB FTS, and external search engines, with workload tradeoffs and selection checklists.DatabaseThu, 03 Jul 2025 18:30:00 GMT https://synehq.com/blog/zero-downtime-schema-migrations-for-self-hosted-postgres-with-pgroll/https://synehq.com/blog/zero-downtime-schema-migrations-for-self-hosted-postgres-with-pgroll/Use pgroll's versioned schemas and expand-contract workflow to stage PostgreSQL changes while checking locks, backfills, clients, and rollback boundaries.DatabaseThu, 03 Jul 2025 18:30:00 GMT