[GitHub] [druid] ccaominh commented on a change in pull request #10432: add vectorizeVirtualColumns query context parameter

[GitBox <gi...@apache.org>]

ccaominh commented on a change in pull request #10432:
URL: https://github.com/apache/druid/pull/10432#discussion_r496201157



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File path: docs/misc/math-expr.md
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@@ -214,3 +214,16 @@ For the IPv4 address functions, the `address` argument can either be an IPv4 dot
 | ipv4_match(address, subnet) | Returns 1 if the `address` belongs to the `subnet` literal, else 0. If `address` is not a valid IPv4 address, then 0 is returned. This function is more efficient if `address` is a long instead of a string.|
 | ipv4_parse(address) | Parses `address` into an IPv4 address stored as a long. If `address` is a long that is a valid IPv4 address, then it is passed through. Returns null if `address` cannot be represented as an IPv4 address. |
 | ipv4_stringify(address) | Converts `address` into an IPv4 address dotted-decimal string. If `address` is a string that is a valid IPv4 address, then it is passed through. Returns null if `address` cannot be represented as an IPv4 address.|
+
+
+## Vectorization Support
+A number of expressions support ['vectorized' query engines](../querying/query-context.md#vectorization-parameters)
+
+supported features:
+* constants and identifiers are supported for any column type
+* `cast` is supported for numeric and string types
+* math operators: `+`,`-`,`*`,`/`,`%`,`^` are supported for numeric types
+* comparison operators: `=`, `!=`, >`, `>=`, `<`, `<=` are supported for numeric types

Review comment:
       ```suggestion
   * comparison operators: `=`, `!=`, `>`, `>=`, `<`, `<=` are supported for numeric types
   ```




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