feat: support aggregates on global tbls
Summary
- feat: support aggregates on global tbls
- update sbroad submodule
- add integration tests with aggregates on global tables
- groupby, having and aggregates are now supported for global tbls
Close #...
Ensure that
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New code is covered by tests -
API is documented -
Changelog is up to date -
(if Lua API changed) Lua API version is bumped inluamod.rs
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(if necessary) A follow-up doc issue is created in picodata/docs and linked here