sql_where: Format a SQL where clause from arguments
Description
This function will create a where statement that is compatible with
get_spatial_layer). This statement can then be passed
to the where argument in this function.
Usage
sql_where(..., rel_op = "=")
Value
A character string that can be passed to the where argument of
get_spatial_layer
Arguments
...
Named objects to be queried by
rel_op
Character. The relational operator in the SQL clause (i.e. "=",
"IN", "NOT IN", etc.). If a single rel_op is provide with multiple ...
parameters then it will be recycled length(...) times.