Simplify query structure

[kashav]

• Allow SELECT clause to be omitted (attribute should default to all) (14344414, 14345753).

  $ fsql "name, size, ... FROM . WHERE ..."
  $ fsql "FROM . WHERE ..."

• Make WHERE clause optional (Make where clause optional #8).

• Quote-less queries:

  $ fsql SELECT \* FROM . WHERE ...
  $ fsql all FROM . WHERE ...

• Make FROM clause optional, directory should default to the current directory (./).

[kashav]

I've started working on this on refactor/query-structure.

[kashav]

To test this, you'll have to build manually (since go get doesn't support fetching from a non-master branch).

$ git clone https://github.com/kshvmdn/fsql.git $GOPATH/src/github.com/kshvmdn/fsql
$ cd $_
$ git fetch origin
$ git checkout -b refactor/query-structure origin/refactor/query-structure
$ go install
$ which fsql
$GOPATH/bin/fsql

[cdmckay]

Won't the shell expand the * in your select example?

[kashav]

@cdmckay Hah, you're right. The * would have to be escaped as well, I think I'll add an example to the README for that.

[kashav]

The PR for this is up (#16). Going to test over the next few hours and hopefully merge tonight. If you're interested in testing as well, follow #10 (comment).

[kashav]

Merged in a6c3339.

[lorenzhs]

@cdmckay in zsh you can do alias fsql=noglob fsql to disable globbing, then you could use * without escaping it.