PrefixQuery specifies the configurations of a prefix query. You can use the prefix query feature to query data that matches a specific prefix. If the field used to match the prefix is a TEXT field, the field values are tokenized. A row meets the query conditions when at least one token contains the specified prefix.
Data structure
message PrefixQuery {
optional string field_name = 1;
optional string prefix = 2;
optional float weight = 3;
}Parameter | Type | Required | Description |
field_name | string | Yes | The name of the attribute column. |
prefix | string | Yes | The prefix that is used to match the value of the column when you perform a prefix query. If the field used to match the prefix is a TEXT field, the field values are tokenized. A row meets the query conditions when at least one token contains the specified prefix. |
weight | float | No | The weight configurations of the query condition. |