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MXS-1278: Add 'sql_mode' configuration parameter

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Using the 'sql_mode' configuration parameter, the initial sql mode
can be specified.
This commit is contained in:
Johan Wikman
2017-06-05 13:51:15 +03:00
parent a690b44919
commit 83f8010c4b
4 changed files with 48 additions and 31 deletions
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29
Documentation/Getting-Started/Configuration-Guide.md
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@ -519,6 +519,35 @@ This will log all statements that cannot be parsed completely. This may be
useful if you suspect that MariaDB MaxScale routes statements to the wrong
server (e.g. to a slave instead of to a master).
#### `sql_mode`
Specifies whether the query classifier parser should initially expect _MariaDB_
or _PL/SQL_ kind of SQL.
The allowed values are:
`default`: The parser expects regular _MariaDB_ SQL.
`oracle` : The parser expects PL/SQL.
```
sql_mode=oracle
```
The default value is `default`, which is also used if no value is specified
or if `sql_mode=` is not present at all. At runtime, MariaDB MaxScale will
recognize statements like
```
set sql_mode=oracle;
```
and
```
set sql_mode=default;
```
and change mode accordingly.
Note that MariaDB MaxScale is **not** explicitly aware of the sql mode of
the server, so the value of `sql_mode` should reflect the sql mode used
when the server is started.
### Service
A service represents the database service that MariaDB MaxScale offers to the