Update cluster-wide SQL

Picodata' SQL relies on the sbroad library to execute clusterwide queries. Sbroad

1. Was refactored in the way it calculates buckets for the INSERT queries. All these changes allowed us to use a hash dunction from the key_def to calculate bucket_ids in Picodata.
2. Has lot's of bug fixes and improvements

So, current MR updates sbroad version, improves its documentation and adds some tests to check closed bugs in the Picodata SQL runtime.

assigned to @darthunix

marked this merge request as ready

requested review from @rosik

added 3 commits

• d3a3cd14 - doc: add SQL documentation for pico.help()
• 6f95347b - test: add failing sql test with lowercase names
• 4cfca004 - test: add another failing sql test

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added 3 commits

• a9052fa5 - doc: add SQL documentation for pico.help()
• 6593f3b5 - test: add failing sql test with lowercase names
• a0d0b371 - test: add another failing sql test

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added 27 commits

• a0d0b371...e74c22a1 - 21 commits from branch master
• 344b61f0 - test: add key_def tests
• 6d01c3ff - refactoring: remove redundant sql function for bucket calculation
• c0919c20 - feat: register pico.sql and pico.trace as RPC
• 769676d4 - doc: add SQL documentation for pico.help()
• c6f21ce9 - test: add failing sql test with lowercase names
• 6eac0bd9 - test: add another failing sql test

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added 1 commit

• a6c3edcb - fixup Cargo.lock

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added 6 commits

• 8784e4bb - test: add key_def tests
• f4c40f0a - refactoring: remove redundant sql function for bucket calculation
• b309a2f2 - feat: register pico.sql and pico.trace as RPC
• 471f47a3 - doc: add SQL documentation for pico.help()
• 2fe9eb6a - test: add failing sql test with lowercase names
• 0b03c5e8 - test: add another failing sql test

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added 5 commits

• 39b65dd7 - refactoring: remove redundant sql function for bucket calculation
• f3587daa - feat: register pico.sql and pico.trace as RPC
• e11b2a8b - doc: add SQL documentation for pico.help()
• 001b15dd - test: add failing sql test with lowercase names
• 008e4cfb - test: add another failing sql test

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resolved all threads

Please, provide a changelog and MR description

Commit history looks obsolete. I suggest squashing them immediately (with a proper commit message).

added 1 commit

• 8cf09f2a - doc: prettify pico.sql lua help

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removed review request for @rosik

mentioned in merge request !604 (merged)

added 5 commits

• 22cdf656 - test: add hash calculation tests
• 6a10c84e - refactoring: remove redundant sql function for bucket calculation
• 4455a3c9 - feat: register pico.sql and pico.trace as RPC
• 88c42357 - doc: update SQL documentation and changlog
• 931d46f0 - test: support of the upper and lowercase table names

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changed the description

resolved all threads