ast: add explain format=json #1055
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Co-authored-by: kennytm <[email protected]>
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What problem does this PR solve?
Parser component of pingcap/tidb#20378
What is changed and how it works?
The ast is modified to make the syntax
EXPLAIN FORMAT=JSON SelectStmtvalid. This is already valid syntax in MySQL, which supports the formats tree/traditional/json.Check List
Tests
Code changes
Side effects
Related changes