We are using a Spark Thrift server, with Iceberg table format, with Parquet data file, and Spark as execution engine.
1, When I submit an sql statement to Spark Thrift server, what type this statement is? Is it Spark SQL? or HiveSQL? Because I saw SparkThrift is built from Hiveserver2
2, When I create a table with schema
CREATE TABLE (schema here)
USING iceberg
Then what type of schema this table is? I though it is Iceberg schema, not Spark schema