Specifies the maximum number of messages that the provider scans to determine the columns and data types for a topic.

データ型

string

デフォルト値

"100"

解説

The 本製品 inspects message values to infer a topic’s schema when using a type detection scheme that requires scanning. This property limits how many messages are read during that process.

Higher values allow the 本製品 to discover more fields and infer more accurate data types, but may increase startup time for the query. Lower values reduce scanning time, but may cause some fields or data types to be missed if they do not appear within the scanned messages.