Feat(tsql): transpile CREATE SCHEMA IF NOT EXISTS to dynamic SQL #2083
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Fixes #2065
Right now, transpiling
CREATE SCHEMA IF NOT EXISTS <name>to T-SQL produces invalid code. This PR aims to address simple cases like this by transpiling them into dynamic SQL that checks whether the schema exists with anIFstatement and if it doesn't it creates it with anEXECcall.This seems to be a needed workaround because of T-SQL's constraints around schema creation (see the corresponding issue for more context).
cc: @deschman