Marko Mäkelä 03fbfeef66 Identify system-versioned columns in the InnoDB dictionary ... Both bits DATA_VERSIONED will be set in prtype if the column is system-versioned. The bits will be 0 for normal unversioned columns. For the special columns identifying the logical start and end times of versions, only one bit will be set: DATA_VERS_START or DATA_VERS_END. create_table_info_t::create_table_def(), prepare_inplace_alter_table_dict(): Set prtype |= DATA_VERSIONED for system-versioned columns. dfield_t::is_version_historical_end(): Determine if a data tuple field is_version_end() and contains a timestamp in the past (not TRX_ID_MAX). dtype_t, dict_col_t: Add the accessors is_versioned(), is_version_start(), is_version_end(). trx_id_max_bytes[]: The bit pattern of TRX_ID_MAX, for use with memcmp().		2017-11-27 15:07:33 +03:00
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data0data.cc	Identify system-versioned columns in the InnoDB dictionary	2017-11-27 15:07:33 +03:00
data0type.cc	MDEV-11369 Instant ADD COLUMN for InnoDB	2017-10-06 09:50:10 +03:00