[docs][YSQL] CREATE AGGREGATE, DROP AGGREGATE#2329

Merged

jaki merged 8 commits intoyugabyte:masterfrom jaki:docs-aggregate

Sep 16, 2019

+794-146

Commits on Sep 16, 2019

Start docs on CREATE AGGREGATE
Jason Kim
committed
Add and fix rules for CREATE AGGREGATE
Jason Kim
committed
Add semantics and examples for CREATE AGGREGATE
Jason Kim
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Create aggregate_signature rule
Jason Kim
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Do docs on DROP AGGREGATE
Jason Kim
committed
Add examples for DROP AGGREGATE docs page
Jason Kim
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Fix things unrelated to this feature
Jason Kim
committed
Address @ndeodhar 's review comments
Jason Kim
committed