Technical Specifications

Table 1 lists the technical specifications of openGauss.

Table 1 Technical Specifications

Technical Specifications	Maximum Value
Database capacity	Varying with the OS and hardware
Size of a table	32TB
Size of data in each row	1 GB
Size of a single field in each record	1 GB
Number of records in each table	2⁴⁸
Number of columns in each table	250 to 1600 (varying with the field type)
Number of indexes in each table	Unlimited
Number of columns contained in a composite index	32
Number of constraints in each table	Unlimited
Number of concurrent connections	10000
Number of partitions in a partitioned table	32768 (range partition); 64 (hash partition or list partition)
Size of each partition in a partitioned table	32 TB
Number of records in each partition of a partitioned table	2⁵⁵