jcralmeida commented on a change in pull request #11982:
URL: https://github.com/apache/arrow/pull/11982#discussion_r787134575
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File path: format/FlightSql.proto
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@@ -867,6 +867,69 @@ enum SqlSupportsConvert {
SQL_CONVERT_VARCHAR = 19;
}
+/*
+ * Represents a request to retrieve information about data type supported ona
Flight SQL enabled backend.
+ * Used in the command member of FlightDescriptor for the following RPC calls:
+ * - GetSchema: return the schema of the query.
+ * - GetFlightInfo: execute the catalog metadata request.
+ *
+ * The returned schema will be:
+ * <
+ * type_name: utf8 not null (The name of the data type, for example:
VARCHAR, INTEGER, etc),
+ * data_type: int not null (The SQL data type),
+ * column_size: int (The maximum column size that the server supports for
this data type.
+ * For numeric data, this is the maximum precision.
+ * For string data, this is the length in characters.
+ * For datetime data types, this is the length in
characters of the string representation.
+ * NULL is returned for data types where column size is
not applicable.),
+ * literal_prefix: utf8 (Character or characters used to prefix a literal,
NULL is returned for
+ * data types where a literal prefix is not
applicable.),
+ * literal_suffix: utf8 (Character or characters used to terminate a literal,
+ * NULL is returned for data types where a literal
suffix is not applicable.),
+ * create_params: utf8 (A list of keywords, separated by commas,
corresponding
Review comment:
Changed to a List
Fixed
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