[skip e2e] Fix typo for design doc (#14385)

Signed-off-by: yhmo <yihua.mo@zilliz.com>
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groot 2021-12-28 10:38:07 +08:00 committed by GitHub
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@ -26,7 +26,7 @@ After obtaining the AST, the execution engine uses the visitor mode to explain a
2. If Predicate does not exist, vector search bitmask will be empty.
3. Bitmask will be used to mark filtered out / deleted entities in the vector execution engine.
2. Currently, Milvus supports following node on the AST, visitor mode is used to interpret and execute from top to bottom and generate the final bitmask.
2. Currently, Milvus supports the following node on the AST, visitor mode is used to interpret and execute from top to bottom and generate the final bitmask.
1. LogicalUnaryExpr: not expression
2. LogicalBinaryExpr: and or expression