information_schema.tables.table_rows

mysql

type: BIGINT NULL
5.7-8

mariadb

type: NULL
Note:
Number of rows in the table. Some engines, such as XtraDB and InnoDB may store an estimate.
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5.1-10.8

tidb

type: BIGINT(21) NULL
Note:
The number of rows in the table in statistics.
© 2022 PingCAP
4-6.1

postgres

cockroachdb

mssql