use equals for number equality checking
remove final for static methods
simplified boolean if statements
Split TableMetadata from SPI-specific ConnectorTableMetadata
Record input tables and columns in QueryCompletionEvent
Parser changes for creating stratified samples with TABLESAMPLE
[maven-release-plugin] prepare release 0.53
[maven-release-plugin] prepare for next development iteration
Fixed typos
Merge pull request #1 from facebook/master

updating fork