SPQR is optimized for single-shard OLTP queries but supports limited cross-shard operations:Documentation Index
Fetch the complete documentation index at: https://docs.pg-sharding.tech/llms.txt
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SELECT * FROMwithoutWHEREclause and DDL commands (best-effort with no snapshot isolation, see Distributed Transactions)- Bulk operations (COPY, batch INSERT)
query_routing.default_route_behaviour: BLOCK in router config.