[opt](catalog) fe-connector: unify the connector cache foundation, memoize per-statement hot paths, fix iceberg case-insensitive column DDL - #66029

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morningman merged 29 commits into

apache:branch-catalog-spifrom

morningman:catalog-spi-review-19

Jul 25, 2026

Commits on Jul 24, 2026

[docs](catalog) add connector cache-unification research space + tracking scaffolding

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claude
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[test](catalog) fe-core: guard ExecuteCommand connector per-statement scope reset across prepared executions

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[docs](catalog) connector cache unification: persist finalized foundation design + record connector-scope reset verification

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[refactor](catalog) fe-connector-cache: generalize ConnectorPartitionViewCache into a reusable ConnectorMetadataCache

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[docs](catalog) connector cache unification: record the ConnectorMetadataCache generalization

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[refactor](catalog) fe-connector-api: extract the per-statement table memo into a shared ConnectorStatementScopes helper

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[docs](catalog) connector cache unification: record PR-2 statement-scope helper completion

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[refactor](catalog) fe-connector-cache: fold the "ttl<=0 disables" contract into CacheSpec.ofConnectorTtl

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[docs](catalog) connector cache unification: record ttl-dedup + deferred iceberg cache convergence

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[docs](catalog) hudi perf: open perf-hotpath-hudi workspace + round-1 design

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[docs](catalog) fe-connector-hudi: drop stale dormant-hms comments

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[perf](catalog) fe-connector-hudi: cache HMS client with fresh listing + REFRESH flush

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[docs](catalog) hudi perf: record round-1 A+C done, blueprint the flagship memo

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[perf](catalog) fe-connector-hudi: memoize latest schema + instant per statement

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[docs](catalog) hudi perf: record round-1 done (flagship memo = two independent per-statement memos)

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[perf](catalog) fe-connector-maxcompute: memoize resolved table handle per statement

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[docs](catalog) maxcompute perf: record round-1 done (per-statement handle memo)

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[perf](catalog) fe-connector-es: hoist per-scan metadata state and memoize schema per statement

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[perf](catalog) fe-connector-es: share one index mapping fetch per statement across schema and scan paths

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[docs](catalog) es perf: record round-1 done (per-scan hoist + schema memo + cross-path mapping scope)

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[refactor](catalog) fe-connector: drop the authz-cache-sharding build gate, keep the invariant as an ATTN comment

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[docs](catalog) fe-connector: refresh stale "dormant until cutover" comments on live iceberg/maxcompute write paths

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[docs](catalog) connector-cache: schedule paimon/jdbc/hive P2 items for next session; record that local CPU is a real perf cost

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[perf](catalog) fe-connector-paimon: route SHOW PARTITIONS / partition_values() through the partition-view cache

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[perf](catalog) fe-connector-jdbc: dedup remote column fetch per statement across read and write paths

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[docs](catalog) connector-cache: record paimon/jdbc P2 done + hive item refuted as non-bug

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[opt](catalog) fe-connector: unify the connector cache foundation, memoize per-statement hot paths, fix iceberg case-insensitive column DDL - #66029

[opt](catalog) fe-connector: unify the connector cache foundation, memoize per-statement hot paths, fix iceberg case-insensitive column DDL#66029
morningman merged 29 commits into
apache:branch-catalog-spifrom
morningman:catalog-spi-review-19

Commits on Jul 24, 2026

[docs](catalog) add connector cache-unification research space + tracking scaffolding

[test](catalog) fe-core: guard ExecuteCommand connector per-statement scope reset across prepared executions

[docs](catalog) connector cache unification: persist finalized foundation design + record connector-scope reset verification

[refactor](catalog) fe-connector-cache: generalize ConnectorPartitionViewCache into a reusable ConnectorMetadataCache

[docs](catalog) connector cache unification: record the ConnectorMetadataCache generalization

[refactor](catalog) fe-connector-api: extract the per-statement table memo into a shared ConnectorStatementScopes helper

[docs](catalog) connector cache unification: record PR-2 statement-scope helper completion

[refactor](catalog) fe-connector-cache: fold the "ttl<=0 disables" contract into CacheSpec.ofConnectorTtl

[docs](catalog) connector cache unification: record ttl-dedup + deferred iceberg cache convergence

[docs](catalog) hudi perf: open perf-hotpath-hudi workspace + round-1 design

[docs](catalog) fe-connector-hudi: drop stale dormant-hms comments

[perf](catalog) fe-connector-hudi: cache HMS client with fresh listing + REFRESH flush

[docs](catalog) hudi perf: record round-1 A+C done, blueprint the flagship memo

[perf](catalog) fe-connector-hudi: memoize latest schema + instant per statement

[docs](catalog) hudi perf: record round-1 done (flagship memo = two independent per-statement memos)

[perf](catalog) fe-connector-maxcompute: memoize resolved table handle per statement

[docs](catalog) maxcompute perf: record round-1 done (per-statement handle memo)

[perf](catalog) fe-connector-es: hoist per-scan metadata state and memoize schema per statement

[perf](catalog) fe-connector-es: share one index mapping fetch per statement across schema and scan paths

[docs](catalog) es perf: record round-1 done (per-scan hoist + schema memo + cross-path mapping scope)

[refactor](catalog) fe-connector: drop the authz-cache-sharding build gate, keep the invariant as an ATTN comment

[docs](catalog) fe-connector: refresh stale "dormant until cutover" comments on live iceberg/maxcompute write paths

[docs](catalog) connector-cache: schedule paimon/jdbc/hive P2 items for next session; record that local CPU is a real perf cost

[perf](catalog) fe-connector-paimon: route SHOW PARTITIONS / partition_values() through the partition-view cache

[perf](catalog) fe-connector-jdbc: dedup remote column fetch per statement across read and write paths

[docs](catalog) connector-cache: record paimon/jdbc P2 done + hive item refuted as non-bug

Commits on Jul 25, 2026

[refactor](catalog) fe-connector: move statement-scope namespaces into each connector, keep fe-connector-api neutral

[fix](catalog) fe-connector-iceberg: reject case-insensitive column-name collisions on the top-level ALTER ops

[docs](catalog) HANDOFF: record CI 1005291 iceberg case-insensitive column-name regression + build gotchas