WillAyd commented on code in PR #577:
URL: https://github.com/apache/arrow-adbc/pull/577#discussion_r1183868618
##########
c/driver/postgresql/connection.cc:
##########
@@ -47,7 +49,80 @@ AdbcStatusCode PostgresConnection::GetTableSchema(const
char* catalog,
const char* table_name,
struct ArrowSchema* schema,
struct AdbcError* error) {
- return ADBC_STATUS_NOT_IMPLEMENTED;
+ AdbcStatusCode final_status = ADBC_STATUS_OK;
+ struct StringBuilder query = {0};
+ if (StringBuilderInit(&query, /*initial_size=*/256) != 0) return
ADBC_STATUS_INTERNAL;
+
+ if (StringBuilderAppend(
+ &query, "%s",
+ "SELECT attname, atttypid "
+ "FROM pg_catalog.pg_class AS cls "
+ "INNER JOIN pg_catalog.pg_attribute AS attr ON cls.oid =
attr.attrelid "
+ "INNER JOIN pg_catalog.pg_type AS typ ON attr.atttypid = typ.oid "
+ "WHERE attr.attnum >= 0 AND cls.oid = '") != 0)
+ return ADBC_STATUS_INTERNAL;
+
+ if (db_schema != nullptr) {
+ char* schema = PQescapeIdentifier(conn_, db_schema, strlen(db_schema));
Review Comment:
See https://github.com/apache/arrow-adbc/issues/643
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