Nóta
Teastaíonn údarú chun rochtain a fháil ar an leathanach seo. Is féidir leat triail a bhaint as shíniú isteach nó eolairí a athrú.
Teastaíonn údarú chun rochtain a fháil ar an leathanach seo. Is féidir leat triail a bhaint as eolairí a athrú.
Applies to:
Databricks SQL
Databricks Runtime
Returns the schema of a CSV string in DDL format.
Syntax
schema_of_csv(csv [, options] )
Arguments
csv: ASTRINGliteral with validCSVdata.options: An optionalMAPliterals where keys and values areSTRING.
Returns
A STRING composing a struct.
The field names are derived by position as _Cn.
The values hold the derived formatted SQL types.
For details on options see from_csv function.
Examples
> DESCRIBE SELECT schema_of_csv('1,abc');
STRUCT<`_c0`: INT, `_c1`: STRING>