Parquetgen bug fix

New field functions were being defined multiple times

RLE refactoring

v0.0.6

a little refactoring

Lazy load

The data from each row group is only read when Scan has been called enough to consume the previous RowGroup. This avoids loading all the parquet data into memory at once.

Fix StringOptionalField read bug.

Merge pull request #6 from parsyl/optional-string-bug

Fix a bug in reading optional strings

Flush to disk.

Calls to ParquetWriter's Write() writes all data to disk and starts a new row group.

Everything in one file.

Dep ensure was't pulling in read.go and rle.go from another project.

First release

Merge pull request #3 from parsyl/lookupschema

added a few tweaks to make reading work