Remove non standard keywords from show #5124
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Since the vtgate executor accepts arbitrary sql identifiers as the type value for `show` statements, remove vitess-specific keywords from the grammar for things like `vitess_keyspaces`, `vitess_shards`, and more. Along the way, add support for `show keyspaces` and make sure to lowercase the show target. Signed-off-by: Michael Demmer <mdemmer@slack-corp.com>
Signed-off-by: Saif Alharthi <saif@saifalharthi.me>
sougou
approved these changes
Aug 21, 2019
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This is a continuation from #4384