Read string as Utf8View in sqllogictest #13408
Description
Is your feature request related to a problem or challenge?
This is the simplest way to create a string column
statement ok
create table t(a varchar) as values ('1'), ('2');
query T
select arrow_typeof(a) from t;
----
Utf8
Utf8
statement ok
drop table t
I'm finding a simple way to create Utf8View column. We can achieve this with casting (See datafusion/sqllogictest/test_files/string/string_view.slt) but I think we can have a more simpler way to do this.
Describe the solution you'd like
I have two idea but not sure which one is better
Approach 1
Set the configuration with use_string_view = true, and we will read the column (varchar) as string view type instead of string type.
Something like
set datafusion.xxx.use_string_view = true
statement ok
create table t(a varchar) as values ('1'), ('2');
query T
select arrow_typeof(a) from t;
----
Utf8View
Utf8View
statement ok
drop table t
This avoid adding new syntax.
Approach 2
introduce string_view syntax like varchar_view so we know we want to read it as string view type
Something like
statement ok
create table t(a varchar_view) as values ('1'), ('2');
query T
select arrow_typeof(a) from t;
----
Utf8View
Utf8View
statement ok
drop table t
This adds complexity of understanding of string view type for people from Postgres.
Describe alternatives you've considered
No response
Additional context
No response