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MDEV-307 Add functionality for database comments

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This commit adds a new feature to the server to add comments at the database
level. 1024 bytes is the maximum comment length allowed. If the comment length
exceeds this limit, a new error/warning code 4144 is thrown, based on whether
thd->is_strict_mode() is true/false. The database comment is also added to the
db.opt file, as well as to the information_schema.schemata table.
This commit is contained in:
Gagan Goel
2018-08-26 00:25:52 -04:00
committed by Robert Bindar
parent 9a8d1d84f8
commit e9c6d5a1e8
12 changed files with 277 additions and 47 deletions
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include/mysql_com.h
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@@ -71,6 +71,7 @@
#define COLUMN_COMMENT_MAXLEN 1024
#define INDEX_COMMENT_MAXLEN 1024
#define TABLE_PARTITION_COMMENT_MAXLEN 1024
#define DATABASE_COMMENT_MAXLEN 1024
/*
Maximum length of protocol packet.