Bump org.questdb:questdb from 9.2.2 to 9.4.3 in /modules/questdb

[dependabot]

Bumps org.questdb:questdb from 9.2.2 to 9.4.3.

Release notes

Sourced from org.questdb:questdb's releases.

9.4.3

QuestDB 9.4.3

QuestDB 9.4.3 brings some key bug-fixes, along with parquet-native tables and new parquet-querying performance enhancements, with order-of-magnitude speedups for ORDER BY ... LIMIT queries.

For any questions or feedback, please join us on Slack or on Discourse.

See also our prettier release notes page.

Breaking changes 💥

• Two-bound LIMIT null semantics changed, aligning LIMIT lo, hi with LIMIT n:
  • LIMIT null, n now returns the first N rows (previously the full sorted set)
  • LIMIT n, null now returns the empty result (previously all rows).
  • LIMIT null is unchanged, and returns the full result set.
• EXPLAIN plan output rewording for encodable sorts:
  • There was inconsistency in the rendering for 'encoding sorts'; this plan node will now render consistently as Encode sort light.
  • If you assert any particular query plan shapes in your regression suite, you will need to update the assertions.

Highlights

Table-level Parquet format

Tables can now store partitions in PARQUET format by default, rather than only NATIVE. Previously, you would need to:

• Run ALTER TABLE ... CONVERT PARTITION ... TO PARQUET queries to synchronously convert partitions in QuestDB OSS.
• Enable STORAGE POLICY to asynchronously convert partitions in QuestDB Enterprise.

CREATE TABLE trades (ts TIMESTAMP, price DOUBLE, sym SYMBOL)
TIMESTAMP(ts) PARTITION BY DAY FORMAT PARQUET WAL;
ALTER TABLE trades SET FORMAT PARQUET;
ALTER TABLE trades SET FORMAT NATIVE;

Please note that:

• FORMAT PARQUET can only be set on partitioned write-ahead-log (WAL) tables.
• When applying FORMAT PARQUET via ALTER TABLE, historical partitions will not be automatically converted.
• FORMAT NATIVE remains the default format for tables in QuestDB.
• Out-of-order writes are more expensive when applied to parquet partitions.

Memory-budgeted Parquet decode cache

There is a fine balance of memory budget versus CPU time when scanning and decoding parquet row groups. A fixed number of decode slots was an inflexible way to balance these two concerns.

Therefore, we have introduced a new memory-budget configuration and deprecated the old slot-based config:

• New: cairo.sql.parquet.cache.memory.size

... (truncated)

Commits

• 33fa132 [maven-release-plugin] prepare release 9.4.3
• 2fbe557 build: bump questdb-client to released 1.3.4 (#7264)
• bc56a6c perf(sql): speed up cached window queries and lower memory footprint (#7156)
• eef7018 fix(core): complete catalogue functions on startup; fix flaky covering-index ...
• 772edd4 test(core): fix data race in concurrent ParallelGroupByFuzzTest tests (#7262)
• 867d9b6 fix(sql): fix internal error when a dotted name follows an operator (#7260)
• a03dafa fix(core): fix NATIVE_INDEX_READER leak when a posting-index row cursor is cl...
• 232cfdc fix(sql): fix wrong results in splice, right and full outer joins with a left...
• c32c016 fix(core): fix unexpected logout during HTTP session rotation (#7249)
• 1a08b48 feat(sql): add is_end_of_month SQL function (#7214)
• Additional commits viewable in compare view

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