paleolimbot commented on code in PR #636:
URL: https://github.com/apache/arrow-adbc/pull/636#discussion_r1185015319
##########
c/driver/postgresql/statement.cc:
##########
@@ -797,9 +664,33 @@ AdbcStatusCode PostgresStatement::ExecuteQuery(struct
ArrowArrayStream* stream,
PQclear(result);
return ADBC_STATUS_IO;
}
- AdbcStatusCode status = InferSchema(*type_resolver_, result,
&reader_.schema_, error);
+
+ // Resolve the information from the PGresult into a PostgresType
+ PostgresType root_type;
+ AdbcStatusCode status =
+ ResolvePostgresType(*type_resolver_, result, &root_type, error);
PQclear(result);
if (status != ADBC_STATUS_OK) return status;
+
+ // Initialize the copy reader and infer the output schema (i.e., error for
+ // unsupported types before issuing the COPY query)
+ reader_.copy_reader_.reset(new PostgresCopyStreamReader());
Review Comment:
I don't think that is an option until C++14? (we currently allow C++11 for
R/3.6 on Windows and install on Centos 7 without special install instructions).
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