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ibuf0ibuf.c:

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Correct the comment about the ibuf record format in >= 4.1.1
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heikki@hundin.mysql.fi 2004-01-29 15:08:22 +02:00
parent 85b00b7fb5
commit 49587c4244
1 changed files with 6 additions and 3 deletions
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innobase/ibuf/ibuf0ibuf.c
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@ -48,9 +48,12 @@ insert buffer tree, and that is in the system tablespace of InnoDB.
1. The first field is the space id. 1. The first field is the space id.
2. The second field is a one-byte marker which differentiates records from 2. The second field is a one-byte marker which differentiates records from
the < 4.1.x storage format. the < 4.1.x storage format.
3. The third field contains the type info, where we have also added 2 bytes to 3. The third field is the page number.
store the charset. 4. The fourth field contains the type info, where we have also added 2 bytes to
4. The rest of the fields contain the fields of the actual index record. store the charset. In the compressed table format of 5.0.x we must add more
information here so that we can build a dummy 'index' struct which 5.0.x
can use in the binary search on the index page in the ibuf merge phase.
5. The rest of the fields contain the fields of the actual index record.
*/ */