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

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