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MySQL 8.0 Reference Manual  /  ...  /  The innodb_buffer_stats_by_schema and x$innodb_buffer_stats_by_schema Views

Pre-General Availability Draft: 2018-01-12 The innodb_buffer_stats_by_schema and x$innodb_buffer_stats_by_schema Views

These views summarize the information in the INFORMATION_SCHEMA INNODB_BUFFER_PAGE table, grouped by schema. By default, rows are sorted by descending buffer size.

The innodb_buffer_stats_by_schema and x$innodb_buffer_stats_by_schema views have these columns:

  • object_schema

    The schema name for the object, or InnoDB System if the table belongs to the InnoDB storage engine.

  • allocated

    The total number of bytes allocated for the schema.

  • data

    The total number of data bytes allocated for the schema.

  • pages

    The total number of pages allocated for the schema.

  • pages_hashed

    The total number of hashed pages allocated for the schema.

  • pages_old

    The total number of old pages allocated for the schema.

  • rows_cached

    The total number of cached rows for the schema.

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