pg_clickhouse v0.10: Subquery pushdown and 1000x faster TPC-H queries
Continuing our investment in pg_clickhouse, improving pushdown coverage for analytic workloads has remained our top focus, with full pushdown across the TPC-H benchmark suite as our immediate metric. We've had a lot of progress since our last update in June, including on the TPC-H scoreboard, which we haven't really talked about since our introductory post back in December, so that's where we'll start. With the release of v0.10.0, our scoreboard has moved from 12 of 22 TPC-H queries fully pushed down to 16, leaving only 6 to go to finish off the set.
- ▪Continuing our investment in pg_clickhouse, improving pushdown coverage for analytic workloads has remained our top focus, with full pushdown across the TPC-H benchmark suite as our immediate metric.
- ▪We've had a lot of progress since our last update in June, including on the TPC-H scoreboard, which we haven't really talked about since our introductory post back in December, so that's where we'll start.
- ▪With the release of v0.10.0, our scoreboard has moved from 12 of 22 TPC-H queries fully pushed down to 16, leaving only 6 to go to finish off the set.
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| Original publisher | ClickHouse |
| Canonical URL | https://clickhouse.com/blog/pg_clickhouse-whats-new-july-2026 |
| Publication time | Tue, 11 Aug 2026 21:54:25 +0000 |
| Retrieval time | 2026-08-11T23:20:42.565Z |
| Last seen | 2026-08-11T23:20:42.565Z |
| Headline source | Publisher (no WeSearch rewrite) |
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| Cluster | A7_AXdgpxc_v · 1 stories |
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| Publisher visit | Yes — open original |
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| Commercial reuse | May the content be reused commercially? | Not permitted |
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Continuing our investment in pg_clickhouse, improving pushdown coverage for analytic workloads has remained our top focus, with full pushdown across the TPC-H benchmark suite as our immediate metric. We've had a lot of progress since our last update in June, including on the TPC-H scoreboard, which we haven't really talked about since our introductory post back in December, so that's where we'll start. With the release of v0.10.0, our scoreboard has moved from 12 of 22 TPC-H queries fully pushed down to 16, leaving only 6 to go to finish off the set. Along the way, we also rebuilt the binary driver on a new plain-C client library, more than doubled the surface area of functions and aggregates that push down, hardened the binary driver against a couple of concurrency bugs, detailed below.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at ClickHouse.
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