MySQL 8.0 Reference Manual Including MySQL NDB Cluster 8.0
This table provides about blob values stored in
NDB. The blobs table has
the columns listed here:
table_id
Unique ID of the table containing the column
database_name
Name of the database in which this table resides
table_name
Name of the table
column_id
The column's unique ID within the table
column_name
Name of the column
inline_size
Inline size of the column
part_size
Part size of the column
stripe_size
Stripe size of the column
blob_table_name
Name of the blob table containing this column's blob data, if any
Rows exist in this table for those NDB table
columns that store BLOB,
TEXT values taking up more than
255 bytes and thus require the use of a blob table. Parts of
JSON values exceeding 4000 bytes
in size are also stored in this table. For more information
about how NDB Cluster stores columns of such types, see
String Type Storage Requirements.
The part and (NDB 8.0.30 and later) inline sizes of
NDB blob columns can be set using
CREATE TABLE and
ALTER TABLE statements containing
NDB table column comments (see
NDB_COLUMN Options); this
can also be done in NDB API applications (see
Column::setPartSize() and
setInlineSize()).
The blobs table was added in NDB 8.0.29.