Eloy Lafuente (stronk7) 4ae653024d MDL-53944 dml: make char2real() for mysql to support decimals
- With the patch, 6 positions of scale accuracy are guaranteed
  per individual casted value.
- Backed with unit tests, both for varchar and clob.
- Added 2 missing tests about uses of the method with params
  and values.

Note: 6 was picked because looking to all databases implementation
postgres was found to be casting to real, aka, 6.
2016-05-06 09:27:32 +08:00
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