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Limitations

Groonga has some limitations.

Limitations of table

A table has the following limitations.

Keep in mind that these limitations may vary depending on conditions.

For example, you need to use small size type for key to store many records. Because the maximum total size of keys limitation is exceeded before the maximum number of records limitation is exceeded. If you use UInt64 (8byte) type and store 2 29 records, total key size is 4GiB (= 8 * (2 29)). You can't add more records. You need to choose decreasing key size (e.g. UInt32) or using KEY_LARGE and table-hash-key to store more records.

Limitations of indexing

A full-text index has the following limitations.

Keep in mind that these limitations may vary depending on conditions.

Limitations of column

A column has the following limitation.