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Diffstat (limited to 'storage/innobase/include/dict0dict.h')
| -rw-r--r-- | storage/innobase/include/dict0dict.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/storage/innobase/include/dict0dict.h b/storage/innobase/include/dict0dict.h index 568320457f9..1dfb427e2b5 100644 --- a/storage/innobase/include/dict0dict.h +++ b/storage/innobase/include/dict0dict.h @@ -826,6 +826,18 @@ dict_table_has_atomic_blobs(const dict_table_t* table) return(DICT_TF_HAS_ATOMIC_BLOBS(table->flags)); } +/** @return potential max length stored inline for externally stored fields */ +inline size_t dict_table_t::get_overflow_field_local_len() const +{ + if (dict_table_has_atomic_blobs(this)) { + /* ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED: do not + store any BLOB prefix locally */ + return BTR_EXTERN_FIELD_REF_SIZE; + } + /* up to MySQL 5.1: store a 768-byte prefix locally */ + return BTR_EXTERN_FIELD_REF_SIZE + DICT_ANTELOPE_MAX_INDEX_COL_LEN; +} + /** Set the various values in a dict_table_t::flags pointer. @param[in,out] flags, Pointer to a 4 byte Table Flags @param[in] format, File Format |