Store precision and scale in system.table.
Adding TO_NUMBER built-in function and associated tests.  Function does not yet support format string.
Rename getMaxLength to getByteSize.
Merge branch 'decimal', remote branch 'origin/decimal' into decimal
Rename getMaxLength to getByteSize.
Change variables calling getByteSize to byteSize.
Change variables calling getByteSize to byteSize.
Break out the infinite loop if a columnDef is not found on metadataendpointimpl.
Added end-to-end tests for TO_NUMBER, removed ToNumberParseNode, other minor cleanup suggested by @jtaylor
Remove using the decimal_length field until later.
Minor cleanup.
Minor fix.
Remove DecimalColumn. Not used now.
Merge pull request #73 from elilevine/master

Adding TO_NUMBER built-in function and associated tests.
Merge pull request #72 from tonyhuang/decimal

Rename getMaxLength to getByteSize